mirror of
https://github.com/php/php-src.git
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376 lines
9.3 KiB
PHP
376 lines
9.3 KiB
PHP
<?php
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//
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// +----------------------------------------------------------------------+
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// | PHP version 4.0 |
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// +----------------------------------------------------------------------+
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// | Copyright (c) 1997, 1998, 1999, 2000 The PHP Group |
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// +----------------------------------------------------------------------+
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// | This source file is subject to version 2.0 of the PHP license, |
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// | that is bundled with this package in the file LICENSE, and is |
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// | available at through the world-wide-web at |
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// | http://www.php.net/license/2_02.txt. |
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// | If you did not receive a copy of the PHP license and are unable to |
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// | obtain it through the world-wide-web, please send a note to |
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// | license@php.net so we can mail you a copy immediately. |
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// +----------------------------------------------------------------------+
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// | Authors: Sterling Hughes <sterling@php.net> |
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// | Stig Bakken <ssb@fast.no> |
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// +----------------------------------------------------------------------+
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//
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// $Id$
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//
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define('PEAR_ERROR_RETURN', 1);
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define('PEAR_ERROR_PRINT', 2);
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define('PEAR_ERROR_TRIGGER', 4);
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define('PEAR_ERROR_DIE', 8);
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define('PEAR_ERROR_CALLBACK', 16);
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define('PHP_BINDIR', '@prefix@/bin');
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define('PEAR_INSTALL_DIR', '@PEAR_INSTALLDIR@');
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define('PEAR_EXTENSION_DIR', '@EXTENSION_DIR@');
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$_PEAR_destructor_object_list = array();
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//
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// Tests needed: - PEAR inheritance
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// - destructors
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//
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/**
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* Base class for other PEAR classes. Provides rudimentary
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* emulation of destructors.
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*
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* If you want a destructor in your class, inherit PEAR and make a
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* destructor method called _yourclassname (same name as the
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* constructor, but with a "_" prefix). Also, in your constructor you
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* have to call the PEAR constructor: <code>$this->PEAR();</code>.
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* The destructor method will be called without parameters. Note that
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* at in some SAPI implementations (such as Apache), any output during
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* the request shutdown (in which destructors are called) seems to be
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* discarded. If you need to get any debug information from your
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* destructor, use <code>error_log()</code>, <code>syslog()</code> or
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* something like that instead.
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*
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* @since PHP 4.0.2
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* @author Stig Bakken <ssb@fast.no>
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*/
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class PEAR
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{
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// {{{ properties
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var $_debug = false;
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// }}}
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// {{{ constructor
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/**
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* Constructor. Registers this object in
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* $_PEAR_destructor_object_list for destructor emulation.
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*/
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function PEAR() {
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global $_PEAR_destructor_object_list;
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$_PEAR_destructor_object_list[] = &$this;
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if ($this->_debug) {
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printf("PEAR constructor called, class=%s\n",
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get_class($this));
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}
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}
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// }}}
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// {{{ destructor
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/**
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* Destructor (the emulated type of...). Does nothing right now,
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* but is included for forward compatibility, so subclass
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* destructors should always call it.
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*
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* See the note in the class desciption about output from
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* destructors.
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*
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* @access public
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*/
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function _PEAR() {
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if ($this->_debug) {
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printf("PEAR destructor called, class=%s\n",
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get_class($this));
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}
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}
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// }}}
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// {{{ isError()
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/**
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* Tell whether a value is a PEAR error.
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*
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* @param $data the value to test
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* @access public
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* @return bool true if $data is an error
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*/
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function isError(&$data) {
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return (bool)(is_object($data) &&
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(get_class($data) == "pear_error" ||
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is_subclass_of($data, "pear_error")));
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}
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// }}}
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}
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// {{{ _PEAR_call_destructors()
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function _PEAR_call_destructors() {
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global $_PEAR_destructor_object_list;
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if (is_array($_PEAR_destructor_object_list) && sizeof($_PEAR_destructor_object_list)) {
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reset($_PEAR_destructor_object_list);
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while (list($k, $objref) = each($_PEAR_destructor_object_list)) {
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$destructor = "_".get_class($objref);
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if (method_exists($objref, $destructor)) {
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$objref->$destructor();
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}
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}
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// Empty the object list to ensure that destructors are
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// not called more than once.
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$_PEAR_destructor_object_list = array();
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}
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}
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// }}}
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class PEAR_Error
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{
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// {{{ properties
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var $error_message_prefix = '';
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var $error_prepend = '';
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var $error_append = '';
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var $mode = PEAR_ERROR_RETURN;
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var $level = E_USER_NOTICE;
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var $code = -1;
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var $message = '';
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var $debuginfo = '';
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// Wait until we have a stack-groping function in PHP.
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//var $file = '';
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//var $line = 0;
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// }}}
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// {{{ constructor
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/**
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* PEAR_Error constructor
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*
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* @param $message error message
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*
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* @param $code (optional) error code
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*
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* @param $mode (optional) error mode, one of: PEAR_ERROR_RETURN,
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* PEAR_ERROR_PRINT, PEAR_ERROR_DIE, PEAR_ERROR_TRIGGER or
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* PEAR_ERROR_CALLBACK
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*
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* @param $level (optional) error level, _OR_ in the case of
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* PEAR_ERROR_CALLBACK, the callback function or object/method
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* tuple.
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*
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* @access public
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*
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*/
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function PEAR_Error($message = 'unknown error',
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$code = 0,
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$mode = null,
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$options = null,
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$debuginfo = null)
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{
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if ($mode === null) {
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$mode = PEAR_ERROR_RETURN;
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}
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$this->message = $message;
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$this->code = $code;
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$this->mode = $mode;
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$this->debuginfo = $debuginfo;
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if ($mode & PEAR_ERROR_CALLBACK) {
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$this->level = E_USER_NOTICE;
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$this->callback = $options;
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} else {
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if ($options === null) {
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$options = E_USER_NOTICE;
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}
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$this->level = $options;
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$this->callback = null;
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}
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if ($this->mode & PEAR_ERROR_PRINT) {
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print $this->getMessage();
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}
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if ($this->mode & PEAR_ERROR_TRIGGER) {
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trigger_error($this->getMessage(), $this->level);
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}
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if ($this->mode & PEAR_ERROR_DIE) {
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die($this->getMessage());
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}
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if ($this->mode & PEAR_ERROR_CALLBACK) {
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if (is_string($this->callback) && strlen($this->callback)) {
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call_user_func($this->callback, $this);
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} elseif (is_array($this->callback) &&
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sizeof($this->callback) == 2 &&
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is_object($this->callback[0]) &&
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is_string($this->callback[1]) &&
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strlen($this->callback[1])) {
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call_user_method($this->callback[1], $this->callback[0],
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$this);
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}
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}
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}
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// }}}
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// {{{ getMode()
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/**
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* Get the error mode from an error object.
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*
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* @return int error mode
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* @access public
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*/
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function getMode() {
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return $this->mode;
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}
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// }}}
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// {{{ getCallback()
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/**
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* Get the callback function/method from an error object.
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*
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* @return mixed callback function or object/method array
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* @access public
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*/
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function getCallback() {
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return $this->callback;
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}
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// }}}
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// {{{ getMessage()
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/**
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* Get the error message from an error object.
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*
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* @return string full error message
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* @access public
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*/
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function getMessage ()
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{
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return ($this->error_prepend . $this->error_message_prefix .
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$this->message . $this->error_append);
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}
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// }}}
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// {{{ getCode()
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/**
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* Get error code from an error object
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*
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* @return int error code
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* @access public
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*/
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function getCode()
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{
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return $this->code;
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}
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// }}}
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// {{{ getType()
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/**
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* Get the name of this error/exception.
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*
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* @return string error/exception name (type)
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* @access public
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*/
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function getType ()
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{
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return get_class($this);
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}
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// }}}
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// {{{ getDebugInfo()
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/**
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* Get additional debug information supplied by the application.
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*
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* @return string debug information
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* @access public
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*/
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function getDebugInfo ()
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{
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return $this->debuginfo;
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}
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// }}}
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// {{{ toString()
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/**
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* Make a string representation of this object.
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*
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* @return string a string with an object summary
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* @access public
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*/
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function toString() {
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$modes = array();
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$levels = array(E_USER_NOTICE => "notice",
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E_USER_WARNING => "warning",
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E_USER_ERROR => "error");
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if ($this->mode & PEAR_ERROR_CALLBACK) {
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if (is_array($this->callback)) {
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$callback = get_class($this->callback[0]) . "::" .
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$this->callback[1];
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} else {
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$callback = $this->callback;
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}
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return sprintf('[%s: message="%s" code=%d mode=callback '.
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'callback=%s prefix="%s" prepend="%s" append="%s" '.
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'debug="%s"]',
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get_class($this), $this->message, $this->code,
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$callback, $this->error_message_prefix,
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$this->error_prepend, $this->error_append,
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$this->debuginfo);
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}
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if ($this->mode & PEAR_ERROR_CALLBACK) {
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$modes[] = "callback";
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}
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if ($this->mode & PEAR_ERROR_PRINT) {
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$modes[] = "print";
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}
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if ($this->mode & PEAR_ERROR_TRIGGER) {
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$modes[] = "trigger";
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}
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if ($this->mode & PEAR_ERROR_DIE) {
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$modes[] = "die";
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}
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if ($this->mode & PEAR_ERROR_RETURN) {
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$modes[] = "return";
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}
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return sprintf('[%s: message="%s" code=%d mode=%s level=%s prefix="%s" '.
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'prepend="%s" append="%s" debug="%s"]',
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get_class($this), $this->message, $this->code,
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implode("|", $modes), $levels[$this->level],
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$this->error_message_prefix,
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$this->error_prepend, $this->error_append,
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$this->debuginfo);
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}
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// }}}
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}
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register_shutdown_function("_PEAR_call_destructors");
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/*
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* Local Variables:
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* mode: c++
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* tab-width: 4
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* c-basic-offset: 4
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* End:
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*/
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?>
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