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joko |
1.1 |
<?php |
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/** |
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* This file contains some core functions extending php. |
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* |
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* @author Andreas Motl <andreas.motl@ilo.de> |
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* @package org.netfrag.glib |
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joko |
1.3 |
* @name php |
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joko |
1.1 |
* |
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*/ |
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/** |
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joko |
1.4 |
* $Id: php_extensions.php,v 1.3 2003/03/05 18:54:41 joko Exp $ |
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joko |
1.2 |
* |
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* $Log: php_extensions.php,v $ |
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joko |
1.4 |
* Revision 1.3 2003/03/05 18:54:41 joko |
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* updated docu - phpDocumentor is very strict about its 'blocks'... |
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* |
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joko |
1.3 |
* Revision 1.2 2003/03/05 11:58:49 joko |
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* modified is_hash, mkInstance and others |
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* |
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joko |
1.2 |
* Revision 1.1 2003/03/03 21:08:21 joko |
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* refactored from flib/utils |
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joko |
1.1 |
* |
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* |
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*/ |
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/** |
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* --- shortcut functions |
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* Is there a mechanism in php to 'export' these methods |
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* to the global symbol table automagically? |
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* We wouldn't require declaring these shortcuts below and |
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* could also do some nice stuff at runtime. |
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* (maybe resembling CPAN's Exporter) |
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* |
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* Okay, 'eval' and 'create_function' are alternatives, but i'm |
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* still looking for something that would let us manipulate the |
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* symbol table.... (would also be a nice-to-have feature for |
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* mungling "other" symbol table entries, like variables |
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* and/or object references etc.) |
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* |
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* TODO: $php::EXPORT_OK = array('Dumper', 'session_register_safe', 'mkObject', 'is_hash', 'merge_to'); |
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* |
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*/ |
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// this is (and will probably always be) required by the "Exporter" |
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function &Dumper() { |
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$args = func_get_args(); |
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// shrink array to single item? |
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//if (sizeof($args) == 1) { $args = $args[0]; } |
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php::array_shrink($args); |
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return php::Dumper($args); |
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} |
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// these could be refactore using Exporter proposal below, |
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// which just does this code at runtime via eval |
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//function &session_register_safe() { return php::session_register_safe(func_get_args()); } |
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//function &is_hash() { return php::is_hash(func_get_args()); } |
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//function &loadModule() { return php::loadModule(func_get_args()); } |
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//function &mkObject() { return php::mkInstance(func_get_args()); } |
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//exit; |
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// yes! |
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php::export_symbols(); |
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/** |
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joko |
1.4 |
* --- php extension functions living in the php:: namespace |
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joko |
1.1 |
* |
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joko |
1.3 |
* <pre> |
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* x php::Dumper |
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* x php::session_register_safe |
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* x php::array_init |
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* x php::is_hash |
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* x php::array_join_merge |
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* o php::merge |
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* o php::merge_to |
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* x php::loadModule |
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* x php::mkInstance |
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* </pre> |
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* |
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* @author Andreas Motl <andreas.motl@ilo.de> |
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* @copyright (c) 2003 - All Rights reserved. |
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* @license GNU LGPL (GNU Lesser General Public License) |
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* |
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* @link http://www.netfrag.org/~joko/ |
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* @link http://www.gnu.org/licenses/lgpl.txt |
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* |
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* @package org.netfrag.glib |
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* @name php |
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* |
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* @todo |
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* <pre> |
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* Todo: |
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* |
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* o establish mkInstance here (move from DesignPattern::Object::mkObject) |
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* o establish loadModule here (move from DesignPattern::Object::loadModule) |
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* |
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* Ideas: |
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* o php::create_redirector_function('func', array( type => 'lamba|function|method', name => 'Abc::do_xyz') ) |
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* o php::create_redirector_method('class|obj_ref', 'method', $target) |
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* o php::export_symbol(from, to) (maybe solves above two) |
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* </pre> |
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* |
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joko |
1.1 |
*/ |
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class php { |
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// Exporter proposal |
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// does (e.g.) Exporter::export_symbol('php', 'loadModule', array( php_function => 'loadModule' )); |
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// (or) Exporter::export_symbol('php', 'mkInstance', array( php_function => 'mkObject' )); |
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// -> just all from EXPORT_OK |
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function export_symbols() { |
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$symbols = func_get_args(); |
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php::array_shrink($symbols); |
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global $PHP_EXTENSIONS_EXPORT; |
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//print Dumper($PHP_EXTENSIONS_EXPORT); |
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//exit; |
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if (is_array($PHP_EXTENSIONS_EXPORT)) { |
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//if (defined('EXPORT_OK')) { |
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//print EXPORT_OK . "<br/>"; |
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//$symbols = split(' ', EXPORT_OK); |
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//foreach ($php->EXPORT_OK as $symbol) { |
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/* |
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foreach (EXPORT_OK as $symbol) { |
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print "exporting: $symbol<br/>"; |
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Exporter::export_symbol('php', $symbol, array( php_function => $symbol )); |
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} |
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*/ |
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$symbols = php::array_join_merge($PHP_EXTENSIONS_EXPORT, $symbols); |
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php::loadModule('Exporter'); |
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if (class_exists('Exporter')) { |
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Exporter::export_symbols('php', $symbols); |
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} |
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} |
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} |
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function Dumper() { |
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$arg_list = func_get_args(); |
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$count = 1; |
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// build dump by catching output of php's 'print_r' |
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// using php's output buffering functions |
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ob_start(); |
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foreach ($arg_list as $arg) { |
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print_r($arg); |
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if (is_string($arg)) { |
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print "\n"; |
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} |
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$count++; |
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} |
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$var_dump = ob_get_contents(); |
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ob_end_clean(); |
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//print "mode: " . $this->Dumper_mode . "<br/>"; |
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//if ($this->Dumper_mode == HTML) { |
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$var_dump = str_replace("\n", '<br/>', $var_dump); |
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$var_dump = str_replace(" ", ' ', $var_dump); |
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//} |
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//if (sizeof($args) == 1) { $var_dump .= '<br/>'; } |
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return $var_dump; |
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} |
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function session_register_safe($varname) { |
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if (!session_is_registered($varname)) { |
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session_register($varname); |
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return 1; |
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} |
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} |
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// ------------------------------------------------- |
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// array initializer |
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// initializes passed variable (taken by reference) with an empty array |
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// does this only if it doesn't exist yet or initialization is explicitely requested ($clear = 1) |
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function array_init(&$var, $clear = 0) { |
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if (!is_array($var) || $clear) { $var = array(); } |
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} |
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// from: php.net - http://www.php.net/manual/en/function.array-merge-recursive.php |
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joko |
1.2 |
function is_hash( $var = null ) { |
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joko |
1.1 |
if( is_array( $var ) ) { |
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$keys = array_keys( $var ); |
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$all_num = true; |
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for( $i=0; $i<count($keys); $i++ ) |
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if( is_string($keys[$i] ) ) return true; |
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} |
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return false; |
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} |
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// from: php.net - http://www.php.net/manual/en/function.array-merge-recursive.php |
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function array_join_merge( $arr1, $arr2 ) { |
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if( is_array( $arr1 ) and is_array( $arr2 ) ) { |
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// the same -> merge |
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$new_array = array(); |
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if( php::is_hash( $arr1 ) and php::is_hash( $arr2 ) ) { |
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// hashes -> merge based on keys |
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$keys = array_merge( array_keys( $arr1 ), array_keys( $arr2 ) ); |
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foreach( $keys as $key ) { |
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$new_array[$key] = php::array_join_merge( $arr1[$key], $arr2[$key] ); |
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} |
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} else { |
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// two real arrays -> merge |
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$new_array = |
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array_reverse(array_unique(array_reverse(array_merge($arr1,$arr2)))); |
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} |
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return $new_array; |
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} else { |
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// not the same ... take new one if defined, else the old one stays |
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return $arr2 ? $arr2 : $arr1; |
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} |
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} |
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// TODO: |
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// o refactor to the php:: namespace? |
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// o PEAR::??? |
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// x rename mkObject to mkInstance |
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// x rename loadModule? let it like is.... (suggestions? loadPackage?) |
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// o enhance loadModule: make it possible to load packages from anywhere?! #?)&%$ |
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function namespace2filename($nsName) { |
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if ($filename = str_replace('::', '/', $nsName)) { |
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return $filename; |
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} |
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} |
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function loadModule($namespacedClassname, $options = null) { |
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if (DEBUG_PHP_EXTENSIONS == 1) { |
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print "php::loadModule: " . Dumper($namespacedClassname); |
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} |
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if (LOG_PHP_EXTENSIONS == 1) { |
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php::append_log( "php::loadModule( $namespacedClassname )" ); |
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} |
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if ($filename = php::namespace2filename($namespacedClassname)) { |
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if (is_array($options)) { |
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$extension = $options[extension]; |
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} elseif ($options) { |
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$extension = $options; |
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} else { |
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$extension = 'php'; |
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} |
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$filename .= ".$extension"; |
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// V1: just require |
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//require_once($filename); |
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// V2: check file for existance (didn't work!!! problem with path-style conversion regarding platform running on?) |
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/* |
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if (file_exists($filename)) { |
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require_once($filename); |
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} else { |
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//user_error("Could not load module '$namespacedClassname', file '$filename' does not exist."); |
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} |
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*/ |
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// V3: wrapped through eval (weird) |
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/* |
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$evalstring = "return include_once('$filename');"; |
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$result = eval($evalstring); |
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if (!$result) { |
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user_error("DesignPattern::Object: Could not load module '$namespacedClassname', file '$filename' does not exist."); |
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return; |
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} |
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*/ |
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// V4: just include |
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//define ("WARNING", E_USER_NOTICE); |
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//error_reporting(E_USER_WARNING); |
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//error_reporting(E_ALL); |
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//error_reporting(E_CORE_ERROR); |
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//set_error_handler(array('php::error_handler_2')); |
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//set_error_handler('php_error_handler'); |
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// TODO: do stack-backtracing here to determine function called two or three levels before!!! |
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//print "file: $filename<br/>"; |
296 |
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if (!include_once($filename)) { |
297 |
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$msg = "php::loadModule error: Could not load module '$namespacedClassname', file '$filename' does not exist."; |
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user_error($msg); |
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php::append_log($msg, PEAR_LOG_ERR); |
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//trigger_error($msg); |
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//print "msg: $msg<br/>"; |
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return; |
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} |
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//restore_error_handler(); |
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//exit; |
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return 1; |
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} |
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} |
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function &mkComponent() { |
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// argument handling - perl style |
316 |
joko |
1.2 |
$arg_list = &func_get_args(); |
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joko |
1.1 |
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// trace |
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//print "php::mkInstance: " . Dumper($arg_list); |
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//exit; |
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322 |
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// patch arglist if all arguments are passed in as a single array |
323 |
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if (sizeof($arg_list) == 1 && is_array($arg_list[0])) { |
324 |
joko |
1.2 |
$arg_list = &$arg_list[0]; |
325 |
joko |
1.1 |
} |
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//print "arg_list: $arg_list<br/>"; |
328 |
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$namespacedClassname = array_shift($arg_list); |
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330 |
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// debug |
331 |
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if (DEBUG_PHP_EXTENSIONS == 1) { |
332 |
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print "php::mkComponent: $namespacedClassname<br/>"; |
333 |
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} |
334 |
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if (LOG_PHP_EXTENSIONS == 1) { |
335 |
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php::append_log( "php::mkComponent( $namespacedClassname )" ); |
336 |
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} |
337 |
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$classname = $namespacedClassname; |
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$filename = $namespacedClassname; |
340 |
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$load_module_options = null; |
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342 |
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if (strstr($namespacedClassname, '_')) { |
343 |
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//print "mkObject: unallowed character in namespaced classname: '_' ($namespacedClassname)<br/>"; |
344 |
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//return; |
345 |
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} |
346 |
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347 |
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if (strstr($namespacedClassname, '.')) { |
348 |
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//print "mkObject: unallowed character in namespaced classname: '_' ($namespacedClassname)<br/>"; |
349 |
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//return; |
350 |
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$parts = split('\.', $namespacedClassname); |
351 |
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$filename = $parts[0]; |
352 |
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$extension = $parts[sizeof($parts) - 1]; |
353 |
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$load_module_options = array( extension => $extension ); |
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} |
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356 |
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357 |
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// trace |
358 |
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//print "mkObject: $classname<br>"; |
359 |
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//print "file: $filename<br>"; |
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361 |
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// build native class name from namespaced one |
362 |
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$classname = str_replace('::', '_', $classname); |
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$classname = str_replace('/', '_', $classname); |
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// load class-file |
366 |
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if (!class_exists($classname)) { |
367 |
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php::loadModule($filename, $load_module_options); |
368 |
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} |
369 |
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370 |
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// instantiate object |
371 |
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$attributes = $arg_list; |
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// V0: |
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//$obj = new $classname($attributes); |
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// V1: |
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//$obj = new DesignPattern_Bridge($classname, $attributes); |
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// V2: |
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$obj = php::mkInstance($classname, $attributes); |
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// constructor autocall - if possible |
380 |
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// FIXME: take care for side-effects!!! |
381 |
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/* |
382 |
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if (method_exists($obj, 'constructor')) { |
383 |
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$obj->constructor(); |
384 |
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} |
385 |
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*/ |
386 |
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387 |
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// return instance |
388 |
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return $obj; |
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390 |
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} |
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|
|
// from: http://www.php.net/manual/en/function.method-exists.php |
393 |
|
|
function class_has_method($className, $methodName) { |
394 |
|
|
$bool_exists = (in_array(strtolower($methodName), get_class_methods($className))); |
395 |
|
|
return $bool_exists; |
396 |
|
|
} |
397 |
|
|
|
398 |
|
|
// down: array( item ) => item |
399 |
|
|
function &array_shrink(&$array) { |
400 |
|
|
// shrink array to single item? yes! |
401 |
|
|
if (is_array($array) && !php::is_hash($array) && (sizeof($array) == 1)) { $array = $array[0]; } |
402 |
|
|
return $array; |
403 |
|
|
} |
404 |
|
|
|
405 |
|
|
function append_log($message, $level = PEAR_LOG_DEBUG) { |
406 |
|
|
static $Class_Logger_loaded; |
407 |
|
|
static $Class_Logger_instance; |
408 |
|
|
if (!$Class_Logger_loaded) { |
409 |
|
|
$Class_Logger_loaded++; |
410 |
|
|
//print "LOAD<br/>"; |
411 |
|
|
php::loadModule('Class::Logger'); |
412 |
|
|
} |
413 |
|
|
if (class_exists('Class_Logger')) { |
414 |
|
|
//$Class_Logger_instance = new Class_Logger(); |
415 |
|
|
$Class_Logger_instance = php::mkComponent('Class::Logger'); |
416 |
|
|
//print "YAI<br/>"; |
417 |
|
|
//Class_Logger::log($message); |
418 |
|
|
$Class_Logger_instance->log($message, $level); |
419 |
|
|
} else { |
420 |
|
|
// FIXME! pre-logger log-messages (two or three): |
421 |
|
|
// [PEAR_LOG_DEBUG] php::loadModule( Class::Logger ) |
422 |
|
|
// [PEAR_LOG_DEBUG] php::loadModule( DesignPattern::AbstractClass ) |
423 |
|
|
//print "[$level] $message" . "<br/>"; |
424 |
|
|
} |
425 |
|
|
} |
426 |
|
|
|
427 |
joko |
1.2 |
function &mkInstance($classname, $attributes = array()) { |
428 |
joko |
1.1 |
|
429 |
|
|
$oo = is_object($this); |
430 |
|
|
|
431 |
|
|
// autocall constructor? |
432 |
|
|
if ($oo) { |
433 |
|
|
//print Dumper($this); |
434 |
|
|
//exit; |
435 |
|
|
//print "this: $this<br/>"; |
436 |
|
|
//print "parent: $parent<br/>"; |
437 |
|
|
// V1: |
438 |
|
|
//parent::constructor(); |
439 |
|
|
// V2: |
440 |
|
|
//call_user_func('parent::constructor'); |
441 |
|
|
// V3: |
442 |
|
|
//call_user_func(array($this, 'constructor')); |
443 |
|
|
if (method_exists($this, 'constructor')) { |
444 |
|
|
//print "YAI<br/>"; |
445 |
|
|
//call_user_func(array($this, 'constructor')); |
446 |
|
|
} |
447 |
|
|
} |
448 |
|
|
|
449 |
|
|
if ($oo) { |
450 |
|
|
//$this->log( get_class($this) . "->mkInstance( classname $classname )" ); |
451 |
|
|
//Class_Logger::log( get_class($this) . "->mkInstance( classname $classname )" ); |
452 |
|
|
} else { |
453 |
|
|
//php::append_log( "php::mkInstance( classname $classname )" ); |
454 |
|
|
} |
455 |
|
|
|
456 |
|
|
if (isset($attributes)) { |
457 |
|
|
//print Dumper($attributes); |
458 |
|
|
|
459 |
|
|
/* |
460 |
|
|
// pass single argument 1:1 |
461 |
|
|
if (count($attributes) == 1) { |
462 |
|
|
$attributes_merged = $attributes[0]; |
463 |
|
|
|
464 |
|
|
|
465 |
|
|
|
466 |
|
|
// pass hash 1:1 |
467 |
|
|
} elseif (is_hash($attributes)) { |
468 |
|
|
$attributes_merged = $attributes; |
469 |
|
|
|
470 |
|
|
} else { |
471 |
|
|
$attributes_merged = $attributes; |
472 |
|
|
} |
473 |
|
|
*/ |
474 |
|
|
|
475 |
|
|
$args_pass = array(); |
476 |
|
|
for ($i=0; $i<=count($attributes); $i++) { |
477 |
joko |
1.2 |
array_push($args_pass, '&$attributes[' . $i . ']'); |
478 |
joko |
1.1 |
} |
479 |
|
|
|
480 |
|
|
$arg_string = join(', ', $args_pass); |
481 |
|
|
|
482 |
|
|
/* |
483 |
|
|
// merge entries of numerical indexed arrays together into one hash |
484 |
|
|
} else { |
485 |
|
|
$attributes_merged = array(); |
486 |
|
|
foreach ($attributes as $entry) { |
487 |
|
|
$attributes_merged = array_merge($attributes_merged, $entry); |
488 |
|
|
} |
489 |
|
|
} |
490 |
|
|
*/ |
491 |
|
|
|
492 |
|
|
if (!class_exists($classname)) { |
493 |
|
|
user_error("Class '$classname' doesn't exist."); |
494 |
|
|
return; |
495 |
|
|
} |
496 |
|
|
|
497 |
|
|
//print Dumper($attributes_merged); |
498 |
|
|
//print Dumper($attributes); |
499 |
|
|
//$instance = new $classname($attributes_merged); |
500 |
|
|
//$instance = new $classname($attributes[0]); |
501 |
|
|
$evalstr = 'return new $classname(' . $arg_string . ');'; |
502 |
|
|
|
503 |
|
|
//print "eval: $evalstr<br/>"; |
504 |
|
|
|
505 |
|
|
$instance = eval($evalstr); |
506 |
|
|
//print $evalstr . "<br>"; |
507 |
|
|
} else { |
508 |
|
|
$instance = new $classname; |
509 |
|
|
} |
510 |
|
|
//$this->log("ok"); |
511 |
|
|
return $instance; |
512 |
|
|
} |
513 |
|
|
|
514 |
|
|
// up: string -> array |
515 |
|
|
function array_cast_safe(&$array_or_not) { |
516 |
|
|
if (!is_array($array_or_not)) { |
517 |
|
|
$array_or_not = array($array_or_not); |
518 |
|
|
//print Dumper($array_or_not); |
519 |
|
|
//exit; |
520 |
|
|
} |
521 |
|
|
} |
522 |
|
|
|
523 |
|
|
// To return all ancestors class of an object |
524 |
|
|
// from: http://www.php.net/manual/en/function.get-parent-class.php |
525 |
|
|
function get_ancestors_class($classname) { |
526 |
|
|
$father = get_parent_class($classname); |
527 |
|
|
if ($father != "") { |
528 |
|
|
$ancestors = php::get_ancestors_class($father); |
529 |
|
|
$ancestors[] = $father; |
530 |
|
|
} |
531 |
|
|
return $ancestors; |
532 |
|
|
} |
533 |
|
|
|
534 |
|
|
// ------ override/expand php's 'include_path' setting ------ |
535 |
|
|
function add_libpath($paths) { |
536 |
|
|
|
537 |
|
|
if (!is_array($paths)) { |
538 |
|
|
$paths = array($paths); |
539 |
|
|
} |
540 |
|
|
array_push($paths, ini_get("include_path")); |
541 |
|
|
|
542 |
|
|
// determine OS |
543 |
|
|
$os = 'linux'; |
544 |
|
|
if (stristr($_SERVER["SERVER_SOFTWARE"], 'win32')) { |
545 |
|
|
$os = 'windows'; |
546 |
|
|
} |
547 |
|
|
|
548 |
|
|
$path_delimiter = ':'; |
549 |
|
|
// change path-delimiter for win32 |
550 |
|
|
if ($os == 'windows') { $path_delimiter = ';'; } |
551 |
|
|
// build new 'include_path'-string |
552 |
|
|
$path_new = join($path_delimiter, $paths); |
553 |
|
|
ini_set("include_path", $path_new); |
554 |
|
|
} |
555 |
|
|
|
556 |
|
|
// from: http://www.php.net/manual/en/function.is-subclass-of.php |
557 |
|
|
function is_subclass($child, $parent) { |
558 |
|
|
if (is_string($child)) { |
559 |
|
|
do { |
560 |
|
|
$child = get_parent_class($child); |
561 |
|
|
if (!$child) return false; |
562 |
|
|
//} while ($child == $parent); |
563 |
|
|
} while ($child != $parent); |
564 |
|
|
return true; |
565 |
|
|
} else { |
566 |
|
|
return is_subclass_of($child, $parent); |
567 |
|
|
} |
568 |
|
|
} |
569 |
|
|
|
570 |
|
|
|
571 |
|
|
} |
572 |
|
|
|
573 |
|
|
//function error_handler($errno, $errstr, $errfile, $errline) { |
574 |
|
|
function php_error_handler() { |
575 |
|
|
//print "ERROR!<br/>"; |
576 |
|
|
$error_raw = func_get_args(); |
577 |
|
|
|
578 |
|
|
//print Dumper($error_raw); |
579 |
|
|
|
580 |
|
|
$error = array( |
581 |
|
|
'level' => $error_raw[0], |
582 |
|
|
'message' => $error_raw[1], |
583 |
|
|
'file' => $error_raw[2], |
584 |
|
|
'line' => $error_raw[3], |
585 |
|
|
'context' => &$error_raw[4], |
586 |
|
|
'object_context' => &$error_raw[4][this], |
587 |
|
|
); |
588 |
|
|
$error[component] = $error[object_context]->_component_name; |
589 |
|
|
|
590 |
|
|
//$output_order = array( 'message', 'component', 'file', 'line', 'level' ); |
591 |
|
|
$output_order = array( 'message', 'file', 'line' ); |
592 |
|
|
|
593 |
|
|
/* |
594 |
|
|
$level = $error[0]; |
595 |
|
|
$context = &$error[4]; |
596 |
|
|
$cc = &$context['this']; |
597 |
|
|
*/ |
598 |
|
|
|
599 |
|
|
|
600 |
|
|
//print Dumper($context); |
601 |
|
|
//print Dumper($cc); |
602 |
|
|
//print Dumper($cc->_component_name); |
603 |
|
|
|
604 |
|
|
// by level |
605 |
|
|
//$do_trace = ($level <= 5); |
606 |
|
|
|
607 |
|
|
//$c_name = $context['this']['_component_name']; |
608 |
|
|
|
609 |
|
|
//print "c_error: $c_name<br/>"; |
610 |
|
|
|
611 |
|
|
// if component |
612 |
|
|
//$do_trace = isset($context[this][_component_name]); |
613 |
|
|
//$do_trace = isset($context->this[_component_name]); |
614 |
|
|
//$do_trace = isset($cc->_component_name); |
615 |
|
|
$do_trace = isset($error[component]); |
616 |
|
|
|
617 |
|
|
//$do_trace = 1; |
618 |
|
|
|
619 |
|
|
//print Dumper($context); |
620 |
|
|
|
621 |
|
|
if ($do_trace) { |
622 |
|
|
|
623 |
|
|
//print php::Dumper($error); |
624 |
|
|
//exit; |
625 |
|
|
|
626 |
|
|
//print "<hr/><b><font color=\"red\">ERROR:</font></b><br/>"; |
627 |
|
|
print "<b><font color=\"red\">ERROR:</font></b><br/> "; |
628 |
|
|
|
629 |
|
|
foreach ($output_order as $key) { |
630 |
|
|
print "<b>$key:</b> $error[$key]<br/>"; |
631 |
|
|
} |
632 |
|
|
|
633 |
|
|
} |
634 |
|
|
|
635 |
|
|
} |
636 |
|
|
|
637 |
|
|
|
638 |
|
|
?> |