PEAR.php源代码
[*]<?php
[*]/**
[*] * PEAR, the PHP Extension and Application Repository
[*] *
[*] * PEAR class and PEAR_Error class
[*] *
[*] * PHP versions 4 and 5
[*] *
[*] * LICENSE: This source file is subject to version 3.0 of the PHP license
[*] * that is available through the world-wide-web at the following URI:
[*] * http://www.php.net/license/3_0.txt. If you did not receive a copy of
[*] * the PHP License and are unable to obtain it through the web, please
[*] * send a note to license@php.net so we can mail you a copy immediately.
[*] *
[*] * @category pear
[*] * @package PEAR
[*] * @author Sterling Hughes <sterling@php.net>
[*] * @author Stig Bakken <ssb@php.net>
[*] * @author Tomas V.V.Cox <cox@idecnet.com>
[*] * @author Greg Beaver <cellog@php.net>
[*] * @copyright 1997-2008 The PHP Group
[*] * @license http://www.php.net/license/3_0.txt PHP License 3.0
[*] * @version CVS: $Id: PEAR.php 2832 2008-07-24 02:27:18Z mevans0263 $
[*] * @link http://pear.php.net/package/PEAR
[*] * @since File available since Release 0.1
[*] */
[*]
[*]/**#@+
[*] * ERROR constants
[*] */
[*]define('PEAR_ERROR_RETURN', 1);
[*]define('PEAR_ERROR_PRINT', 2);
[*]define('PEAR_ERROR_TRIGGER', 4);
[*]define('PEAR_ERROR_DIE', 8);
[*]define('PEAR_ERROR_CALLBACK', 16);
[*]/**
[*] * WARNING: obsolete
[*] * @deprecated
[*] */
[*]define('PEAR_ERROR_EXCEPTION', 32);
[*]/**#@-*/
[*]define('PEAR_ZE2', (function_exists('version_compare') &&
[*] version_compare(zend_version(), "2-dev", "ge")));
[*]
[*]if (substr(PHP_OS, 0, 3) == 'WIN') {
[*] define('OS_WINDOWS', true);
[*] define('OS_UNIX', false);
[*] define('PEAR_OS', 'Windows');
[*]} else {
[*] define('OS_WINDOWS', false);
[*] define('OS_UNIX', true);
[*] define('PEAR_OS', 'Unix'); // blatant assumption
[*]}
[*]
[*]// instant backwards compatibility
[*]if (!defined('PATH_SEPARATOR')) {
[*] if (OS_WINDOWS) {
[*] define('PATH_SEPARATOR', ';');
[*] } else {
[*] define('PATH_SEPARATOR', ':');
[*] }
[*]}
[*]
[*]$GLOBALS['_PEAR_default_error_mode'] = PEAR_ERROR_RETURN;
[*]$GLOBALS['_PEAR_default_error_options'] = E_USER_NOTICE;
[*]$GLOBALS['_PEAR_destructor_object_list'] = array();
[*]$GLOBALS['_PEAR_shutdown_funcs'] = array();
[*]$GLOBALS['_PEAR_error_handler_stack'] = array();
[*]
[*]@ini_set('track_errors', true);
[*]
[*]/**
[*] * Base class for other PEAR classes. Provides rudimentary
[*] * emulation of destructors.
[*] *
[*] * If you want a destructor in your class, inherit PEAR and make a
[*] * destructor method called _yourclassname (same name as the
[*] * constructor, but with a "_" prefix). Also, in your constructor you
[*] * have to call the PEAR constructor: $this->PEAR();.
[*] * The destructor method will be called without parameters. Note that
[*] * at in some SAPI implementations (such as Apache), any output during
[*] * the request shutdown (in which destructors are called) seems to be
[*] * discarded. If you need to get any debug information from your
[*] * destructor, use error_log(), syslog() or something similar.
[*] *
[*] * IMPORTANT! To use the emulated destructors you need to create the
[*] * objects by reference: $obj =& new PEAR_child;
[*] *
[*] * @category pear
[*] * @package PEAR
[*] * @author Stig Bakken <ssb@php.net>
[*] * @author Tomas V.V. Cox <cox@idecnet.com>
[*] * @author Greg Beaver <cellog@php.net>
[*] * @copyright 1997-2006 The PHP Group
[*] * @license http://www.php.net/license/3_0.txt PHP License 3.0
[*] * @version Release: 1.7.2
[*] * @link http://pear.php.net/package/PEAR
[*] * @see PEAR_Error
[*] * @since Class available since PHP 4.0.2
[*] * @link http://pear.php.net/manual/en/core.pear.php#core.pear.pear
[*] */
[*]class PEAR
[*]{
[*] // {{{ properties
[*]
[*] /**
[*] * Whether to enable internal debug messages.
[*] *
[*] * @var bool
[*] * @access private
[*] */
[*] var $_debug = false;
[*]
[*] /**
[*] * Default error mode for this object.
[*] *
[*] * @var int
[*] * @access private
[*] */
[*] var $_default_error_mode = null;
[*]
[*] /**
[*] * Default error options used for this object when error mode
[*] * is PEAR_ERROR_TRIGGER.
[*] *
[*] * @var int
[*] * @access private
[*] */
[*] var $_default_error_options = null;
[*]
[*] /**
[*] * Default error handler (callback) for this object, if error mode is
[*] * PEAR_ERROR_CALLBACK.
[*] *
[*] * @var string
[*] * @access private
[*] */
[*] var $_default_error_handler = '';
[*]
[*] /**
[*] * Which class to use for error objects.
[*] *
[*] * @var string
[*] * @access private
[*] */
[*] var $_error_class = 'PEAR_Error';
[*]
[*] /**
[*] * An array of expected errors.
[*] *
[*] * @var array
[*] * @access private
[*] */
[*] var $_expected_errors = array();
[*]
[*] // }}}
[*]
[*] // {{{ constructor
[*]
[*] /**
[*] * Constructor. Registers this object in
[*] * $_PEAR_destructor_object_list for destructor emulation if a
[*] * destructor object exists.
[*] *
[*] * @param string $error_class (optional) which class to use for
[*] * error objects, defaults to PEAR_Error.
[*] * @access public
[*] * @return void
[*] */
[*] function PEAR($error_class = null)
[*] {
[*] $classname = strtolower(get_class($this));
[*] if ($this->_debug) {
[*] print "PEAR constructor called, class=$classname\n";
[*] }
[*] if ($error_class !== null) {
[*] $this->_error_class = $error_class;
[*] }
[*] while ($classname && strcasecmp($classname, "pear")) {
[*] $destructor = "_$classname";
[*] if (method_exists($this, $destructor)) {
[*] global $_PEAR_destructor_object_list;
[*] $_PEAR_destructor_object_list[] = &$this;
[*] if (!isset($GLOBALS['_PEAR_SHUTDOWN_REGISTERED'])) {
[*] register_shutdown_function("_PEAR_call_destructors");
[*] $GLOBALS['_PEAR_SHUTDOWN_REGISTERED'] = true;
[*] }
[*] break;
[*] } else {
[*] $classname = get_parent_class($classname);
[*] }
[*] }
[*] }
[*]
[*] // }}}
[*] // {{{ destructor
[*]
[*] /**
[*] * Destructor (the emulated type of...). Does nothing right now,
[*] * but is included for forward compatibility, so subclass
[*] * destructors should always call it.
[*] *
[*] * See the note in the class desciption about output from
[*] * destructors.
[*] *
[*] * @access public
[*] * @return void
[*] */
[*] function _PEAR() {
[*] if ($this->_debug) {
[*] printf("PEAR destructor called, class=%s\n", strtolower(get_class($this)));
[*] }
[*] }
[*]
[*] // }}}
[*] // {{{ getStaticProperty()
[*]
[*] /**
[*] * If you have a class that's mostly/entirely static, and you need static
[*] * properties, you can use this method to simulate them. Eg. in your method(s)
[*] * do this: $myVar = &PEAR::getStaticProperty('myclass', 'myVar');
[*] * You MUST use a reference, or they will not persist!
[*] *
[*] * @access public
[*] * @param string $class The calling classname, to prevent clashes
[*] * @param string $var The variable to retrieve.
[*] * @return mixed A reference to the variable. If not set it will be
[*] * auto initialised to NULL.
[*] */
[*] function &getStaticProperty($class, $var)
[*] {
[*] static $properties;
[*] if (!isset($properties[$class])) {
[*] $properties[$class] = array();
[*] }
[*] if (!array_key_exists($var, $properties[$class])) {
[*] $properties[$class][$var] = null;
[*] }
[*] return $properties[$class][$var];
[*] }
[*]
[*] // }}}
[*] // {{{ registerShutdownFunc()
[*]
[*] /**
[*] * Use this function to register a shutdown method for static
[*] * classes.
[*] *
[*] * @access public
[*] * @param mixed $func The function name (or array of class/method) to call
[*] * @param mixed $args The arguments to pass to the function
[*] * @return void
[*] */
[*] function registerShutdownFunc($func, $args = array())
[*] {
[*] // if we are called statically, there is a potential
[*] // that no shutdown func is registered. Bug #6445
[*] if (!isset($GLOBALS['_PEAR_SHUTDOWN_REGISTERED'])) {
[*] register_shutdown_function("_PEAR_call_destructors");
[*] $GLOBALS['_PEAR_SHUTDOWN_REGISTERED'] = true;
[*] }
[*] $GLOBALS['_PEAR_shutdown_funcs'][] = array($func, $args);
[*] }
[*]
[*] // }}}
[*] // {{{ isError()
[*]
[*] /**
[*] * Tell whether a value is a PEAR error.
[*] *
[*] * @param mixed $data the value to test
[*] * @param int $code if $data is an error object, return true
[*] * only if $code is a string and
[*] * $obj->getMessage() == $code or
[*] * $code is an integer and $obj->getCode() == $code
[*] * @access public
[*] * @return bool true if parameter is an error
[*] */
[*] function isError($data, $code = null)
[*] {
[*] if (is_a($data, 'PEAR_Error')) {
[*] if (is_null($code)) {
[*] return true;
[*] } elseif (is_string($code)) {
[*] return $data->getMessage() == $code;
[*] } else {
[*] return $data->getCode() == $code;
[*] }
[*] }
[*] return false;
[*] }
[*]
[*] // }}}
[*] // {{{ setErrorHandling()
[*]
[*] /**
[*] * Sets how errors generated by this object should be handled.
[*] * Can be invoked both in objects and statically. If called
[*] * statically, setErrorHandling sets the default behaviour for all
[*] * PEAR objects. If called in an object, setErrorHandling sets
[*] * the default behaviour for that object.
[*] *
[*] * @param int $mode
[*] * One of PEAR_ERROR_RETURN, PEAR_ERROR_PRINT,
[*] * PEAR_ERROR_TRIGGER, PEAR_ERROR_DIE,
[*] * PEAR_ERROR_CALLBACK or PEAR_ERROR_EXCEPTION.
[*] *
[*] * @param mixed $options
[*] * When $mode is PEAR_ERROR_TRIGGER, this is the error level (one
[*] * of E_USER_NOTICE, E_USER_WARNING or E_USER_ERROR).
[*] *
[*] * When $mode is PEAR_ERROR_CALLBACK, this parameter is expected
[*] * to be the callback function or method. A callback
[*] * function is a string with the name of the function, a
[*] * callback method is an array of two elements: the element
[*] * at index 0 is the object, and the element at index 1 is
[*] * the name of the method to call in the object.
[*] *
[*] * When $mode is PEAR_ERROR_PRINT or PEAR_ERROR_DIE, this is
[*] * a printf format string used when printing the error
[*] * message.
[*] *
[*] * @access public
[*] * @return void
[*] * @see PEAR_ERROR_RETURN
[*] * @see PEAR_ERROR_PRINT
[*] * @see PEAR_ERROR_TRIGGER
[*] * @see PEAR_ERROR_DIE
[*] * @see PEAR_ERROR_CALLBACK
[*] * @see PEAR_ERROR_EXCEPTION
[*] *
[*] * @since PHP 4.0.5
[*] */
[*]
[*] function setErrorHandling($mode = null, $options = null)
[*] {
[*] if (isset($this) && is_a($this, 'PEAR')) {
[*] $setmode = &$this->_default_error_mode;
[*] $setoptions = &$this->_default_error_options;
[*] } else {
[*] $setmode = &$GLOBALS['_PEAR_default_error_mode'];
[*] $setoptions = &$GLOBALS['_PEAR_default_error_options'];
[*] }
[*]
[*] switch ($mode) {
[*] case PEAR_ERROR_EXCEPTION:
[*] case PEAR_ERROR_RETURN:
[*] case PEAR_ERROR_PRINT:
[*] case PEAR_ERROR_TRIGGER:
[*] case PEAR_ERROR_DIE:
[*] case null:
[*] $setmode = $mode;
[*] $setoptions = $options;
[*] break;
[*]
[*] case PEAR_ERROR_CALLBACK:
[*] $setmode = $mode;
[*] // class/object method callback
[*] if (is_callable($options)) {
[*] $setoptions = $options;
[*] } else {
[*] trigger_error("invalid error callback", E_USER_WARNING);
[*] }
[*] break;
[*]
[*] default:
[*] trigger_error("invalid error mode", E_USER_WARNING);
[*] break;
[*] }
[*] }
[*]
[*] // }}}
[*] // {{{ expectError()
[*]
[*] /**
[*] * This method is used to tell which errors you expect to get.
[*] * Expected errors are always returned with error mode
[*] * PEAR_ERROR_RETURN. Expected error codes are stored in a stack,
[*] * and this method pushes a new element onto it. The list of
[*] * expected errors are in effect until they are popped off the
[*] * stack with the popExpect() method.
[*] *
[*] * Note that this method can not be called statically
[*] *
[*] * @param mixed $code a single error code or an array of error codes to expect
[*] *
[*] * @return int the new depth of the "expected errors" stack
[*] * @access public
[*] */
[*] function expectError($code = '*')
[*] {
[*] if (is_array($code)) {
[*] array_push($this->_expected_errors, $code);
[*] } else {
[*] array_push($this->_expected_errors, array($code));
[*] }
[*] return sizeof($this->_expected_errors);
[*] }
[*]
[*] // }}}
[*] // {{{ popExpect()
[*]
[*] /**
[*] * This method pops one element off the expected error codes
[*] * stack.
[*] *
[*] * @return array the list of error codes that were popped
[*] */
[*] function popExpect()
[*] {
[*] return array_pop($this->_expected_errors);
[*] }
[*]
[*] // }}}
[*] // {{{ _checkDelExpect()
[*]
[*] /**
[*] * This method checks unsets an error code if available
[*] *
[*] * @param mixed error code
[*] * @return bool true if the error code was unset, false otherwise
[*] * @access private
[*] * @since PHP 4.3.0
[*] */
[*] function _checkDelExpect($error_code)
[*] {
[*] $deleted = false;
[*]
[*] foreach ($this->_expected_errors AS $key => $error_array) {
[*] if (in_array($error_code, $error_array)) {
[*] unset($this->_expected_errors[$key][array_search($error_code, $error_array)]);
[*] $deleted = true;
[*] }
[*]
[*] // clean up empty arrays
[*] if (0 == count($this->_expected_errors[$key])) {
[*] unset($this->_expected_errors[$key]);
[*] }
[*] }
[*] return $deleted;
[*] }
[*]
[*] // }}}
[*] // {{{ delExpect()
[*]
[*] /**
[*] * This method deletes all occurences of the specified element from
[*] * the expected error codes stack.
[*] *
[*] * @param mixed $error_code error code that should be deleted
[*] * @return mixed list of error codes that were deleted or error
[*] * @access public
[*] * @since PHP 4.3.0
[*] */
[*] function delExpect($error_code)
[*] {
[*] $deleted = false;
[*]
[*] if ((is_array($error_code) && (0 != count($error_code)))) {
[*] // $error_code is a non-empty array here;
[*] // we walk through it trying to unset all
[*] // values
[*] foreach($error_code as $key => $error) {
[*] if ($this->_checkDelExpect($error)) {
[*] $deleted = true;
[*] } else {
[*] $deleted = false;
[*] }
[*] }
[*] return $deleted ? true : PEAR::raiseError("The expected error you submitted does not exist"); // IMPROVE ME
[*] } elseif (!empty($error_code)) {
[*] // $error_code comes alone, trying to unset it
[*] if ($this->_checkDelExpect($error_code)) {
[*] return true;
[*] } else {
[*] return PEAR::raiseError("The expected error you submitted does not exist"); // IMPROVE ME
[*] }
[*] } else {
[*] // $error_code is empty
[*] return PEAR::raiseError("The expected error you submitted is empty"); // IMPROVE ME
[*] }
[*] }
[*]
[*] // }}}
[*] // {{{ raiseError()
[*]
[*] /**
[*] * This method is a wrapper that returns an instance of the
[*] * configured error class with this object's default error
[*] * handling applied. If the $mode and $options parameters are not
[*] * specified, the object's defaults are used.
[*] *
[*] * @param mixed $message a text error message or a PEAR error object
[*] *
[*] * @param int $code a numeric error code (it is up to your class
[*] * to define these if you want to use codes)
[*] *
[*] * @param int $mode One of PEAR_ERROR_RETURN, PEAR_ERROR_PRINT,
[*] * PEAR_ERROR_TRIGGER, PEAR_ERROR_DIE,
[*] * PEAR_ERROR_CALLBACK, PEAR_ERROR_EXCEPTION.
[*] *
[*] * @param mixed $options If $mode is PEAR_ERROR_TRIGGER, this parameter
[*] * specifies the PHP-internal error level (one of
[*] * E_USER_NOTICE, E_USER_WARNING or E_USER_ERROR).
[*] * If $mode is PEAR_ERROR_CALLBACK, this
[*] * parameter specifies the callback function or
[*] * method. In other error modes this parameter
[*] * is ignored.
[*] *
[*] * @param string $userinfo If you need to pass along for example debug
[*] * information, this parameter is meant for that.
[*] *
[*] * @param string $error_class The returned error object will be
[*] * instantiated from this class, if specified.
[*] *
[*] * @param bool $skipmsg If true, raiseError will only pass error codes,
[*] * the error message parameter will be dropped.
[*] *
[*] * @access public
[*] * @return object a PEAR error object
[*] * @see PEAR::setErrorHandling
[*] * @since PHP 4.0.5
[*] */
[*] function &raiseError($message = null,
[*] $code = null,
[*] $mode = null,
[*] $options = null,
[*] $userinfo = null,
[*] $error_class = null,
[*] $skipmsg = false)
[*] {
[*] // The error is yet a PEAR error object
[*] if (is_object($message)) {
[*] $code = $message->getCode();
[*] $userinfo = $message->getUserInfo();
[*] $error_class = $message->getType();
[*] $message->error_message_prefix = '';
[*] $message = $message->getMessage();
[*] }
[*]
[*] if (isset($this) && isset($this->_expected_errors) && sizeof($this->_expected_errors) > 0 && sizeof($exp = end($this->_expected_errors))) {
[*] if ($exp[0] == "*" ||
[*] (is_int(reset($exp)) && in_array($code, $exp)) ||
[*] (is_string(reset($exp)) && in_array($message, $exp))) {
[*] $mode = PEAR_ERROR_RETURN;
[*] }
[*] }
[*] // No mode given, try global ones
[*] if ($mode === null) {
[*] // Class error handler
[*] if (isset($this) && isset($this->_default_error_mode)) {
[*] $mode = $this->_default_error_mode;
[*] $options = $this->_default_error_options;
[*] // Global error handler
[*] } elseif (isset($GLOBALS['_PEAR_default_error_mode'])) {
[*] $mode = $GLOBALS['_PEAR_default_error_mode'];
[*] $options = $GLOBALS['_PEAR_default_error_options'];
[*] }
[*] }
[*]
[*] if ($error_class !== null) {
[*] $ec = $error_class;
[*] } elseif (isset($this) && isset($this->_error_class)) {
[*] $ec = $this->_error_class;
[*] } else {
[*] $ec = 'PEAR_Error';
[*] }
[*] if (intval(PHP_VERSION) < 5) {
[*] // little non-eval hack to fix bug #12147
[*] include 'PEAR/FixPHP5PEARWarnings.php';
[*] return $a;
[*] }
[*] if ($skipmsg) {
[*] $a = new $ec($code, $mode, $options, $userinfo);
[*] } else {
[*] $a = new $ec($message, $code, $mode, $options, $userinfo);
[*] }
[*] return $a;
[*] }
[*]
[*] // }}}
[*] // {{{ throwError()
[*]
[*] /**
[*] * Simpler form of raiseError with fewer options. In most cases
[*] * message, code and userinfo are enough.
[*] *
[*] * @param string $message
[*] *
[*] */
[*] function &throwError($message = null,
[*] $code = null,
[*] $userinfo = null)
[*] {
[*] if (isset($this) && is_a($this, 'PEAR')) {
[*] $a = &$this->raiseError($message, $code, null, null, $userinfo);
[*] return $a;
[*] } else {
[*] $a = &PEAR::raiseError($message, $code, null, null, $userinfo);
[*] return $a;
[*] }
[*] }
[*]
[*] // }}}
[*] function staticPushErrorHandling($mode, $options = null)
[*] {
[*] $stack = &$GLOBALS['_PEAR_error_handler_stack'];
[*] $def_mode = &$GLOBALS['_PEAR_default_error_mode'];
[*] $def_options = &$GLOBALS['_PEAR_default_error_options'];
[*] $stack[] = array($def_mode, $def_options);
[*] switch ($mode) {
[*] case PEAR_ERROR_EXCEPTION:
[*] case PEAR_ERROR_RETURN:
[*] case PEAR_ERROR_PRINT:
[*] case PEAR_ERROR_TRIGGER:
[*] case PEAR_ERROR_DIE:
[*] case null:
[*] $def_mode = $mode;
[*] $def_options = $options;
[*] break;
[*]
[*] case PEAR_ERROR_CALLBACK:
[*] $def_mode = $mode;
[*] // class/object method callback
[*] if (is_callable($options)) {
[*] $def_options = $options;
[*] } else {
[*] trigger_error("invalid error callback", E_USER_WARNING);
[*] }
[*] break;
[*]
[*] default:
[*] trigger_error("invalid error mode", E_USER_WARNING);
[*] break;
[*] }
[*] $stack[] = array($mode, $options);
[*] return true;
[*] }
[*]
[*] function staticPopErrorHandling()
[*] {
[*] $stack = &$GLOBALS['_PEAR_error_handler_stack'];
[*] $setmode = &$GLOBALS['_PEAR_default_error_mode'];
[*] $setoptions = &$GLOBALS['_PEAR_default_error_options'];
[*] array_pop($stack);
[*] list($mode, $options) = $stack[sizeof($stack) - 1];
[*] array_pop($stack);
[*] switch ($mode) {
[*] case PEAR_ERROR_EXCEPTION:
[*] case PEAR_ERROR_RETURN:
[*] case PEAR_ERROR_PRINT:
[*] case PEAR_ERROR_TRIGGER:
[*] case PEAR_ERROR_DIE:
[*] case null:
[*] $setmode = $mode;
[*] $setoptions = $options;
[*] break;
[*]
[*] case PEAR_ERROR_CALLBACK:
[*] $setmode = $mode;
[*] // class/object method callback
[*] if (is_callable($options)) {
[*] $setoptions = $options;
[*] } else {
[*] trigger_error("invalid error callback", E_USER_WARNING);
[*] }
[*] break;
[*]
[*] default:
[*] trigger_error("invalid error mode", E_USER_WARNING);
[*] break;
[*] }
[*] return true;
[*] }
[*]
[*] // {{{ pushErrorHandling()
[*]
[*] /**
[*] * Push a new error handler on top of the error handler options stack. With this
[*] * you can easily override the actual error handler for some code and restore
[*] * it later with popErrorHandling.
[*] *
[*] * @param mixed $mode (same as setErrorHandling)
[*] * @param mixed $options (same as setErrorHandling)
[*] *
[*] * @return bool Always true
[*] *
[*] * @see PEAR::setErrorHandling
[*] */
[*] function pushErrorHandling($mode, $options = null)
[*] {
[*] $stack = &$GLOBALS['_PEAR_error_handler_stack'];
[*] if (isset($this) && is_a($this, 'PEAR')) {
[*] $def_mode = &$this->_default_error_mode;
[*] $def_options = &$this->_default_error_options;
[*] } else {
[*] $def_mode = &$GLOBALS['_PEAR_default_error_mode'];
[*] $def_options = &$GLOBALS['_PEAR_default_error_options'];
[*] }
[*] $stack[] = array($def_mode, $def_options);
[*]
[*] if (isset($this) && is_a($this, 'PEAR')) {
[*] $this->setErrorHandling($mode, $options);
[*] } else {
[*] PEAR::setErrorHandling($mode, $options);
[*] }
[*] $stack[] = array($mode, $options);
[*] return true;
[*] }
[*]
[*] // }}}
[*] // {{{ popErrorHandling()
[*]
[*] /**
[*] * Pop the last error handler used
[*] *
[*] * @return bool Always true
[*] *
[*] * @see PEAR::pushErrorHandling
[*] */
[*] function popErrorHandling()
[*] {
[*] $stack = &$GLOBALS['_PEAR_error_handler_stack'];
[*] array_pop($stack);
[*] list($mode, $options) = $stack[sizeof($stack) - 1];
[*] array_pop($stack);
[*] if (isset($this) && is_a($this, 'PEAR')) {
[*] $this->setErrorHandling($mode, $options);
[*] } else {
[*] PEAR::setErrorHandling($mode, $options);
[*] }
[*] return true;
[*] }
[*]
[*] // }}}
[*] // {{{ loadExtension()
[*]
[*] /**
[*] * OS independant PHP extension load. Remember to take care
[*] * on the correct extension name for case sensitive OSes.
[*] *
[*] * @param string $ext The extension name
[*] * @return bool Success or not on the dl() call
[*] */
[*] function loadExtension($ext)
[*] {
[*] if (!extension_loaded($ext)) {
[*] // if either returns true dl() will produce a FATAL error, stop that
[*] if ((ini_get('enable_dl') != 1) || (ini_get('safe_mode') == 1)) {
[*] return false;
[*] }
[*] if (OS_WINDOWS) {
[*] $suffix = '.dll';
[*] } elseif (PHP_OS == 'HP-UX') {
[*] $suffix = '.sl';
[*] } elseif (PHP_OS == 'AIX') {
[*] $suffix = '.a';
[*] } elseif (PHP_OS == 'OSX') {
[*] $suffix = '.bundle';
[*] } else {
[*] $suffix = '.so';
[*] }
[*] return @dl('php_'.$ext.$suffix) || @dl($ext.$suffix);
[*] }
[*] return true;
[*] }
[*]
[*] // }}}
[*]}
[*]
[*]// {{{ _PEAR_call_destructors()
[*]
[*]function _PEAR_call_destructors()
[*]{
[*] global $_PEAR_destructor_object_list;
[*] if (is_array($_PEAR_destructor_object_list) &&
[*] sizeof($_PEAR_destructor_object_list))
[*] {
[*] reset($_PEAR_destructor_object_list);
[*] if (PEAR::getStaticProperty('PEAR', 'destructlifo')) {
[*] $_PEAR_destructor_object_list = array_reverse($_PEAR_destructor_object_list);
[*] }
[*] while (list($k, $objref) = each($_PEAR_destructor_object_list)) {
[*] $classname = get_class($objref);
[*] while ($classname) {
[*] $destructor = "_$classname";
[*] if (method_exists($objref, $destructor)) {
[*] $objref->$destructor();
[*] break;
[*] } else {
[*] $classname = get_parent_class($classname);
[*] }
[*] }
[*] }
[*] // Empty the object list to ensure that destructors are
[*] // not called more than once.
[*] $_PEAR_destructor_object_list = array();
[*] }
[*]
[*] // Now call the shutdown functions
[*] if (is_array($GLOBALS['_PEAR_shutdown_funcs']) AND !empty($GLOBALS['_PEAR_shutdown_funcs'])) {
[*] foreach ($GLOBALS['_PEAR_shutdown_funcs'] as $value) {
[*] call_user_func_array($value[0], $value[1]);
[*] }
[*] }
[*]}
[*]
[*]// }}}
[*]/**
[*] * Standard PEAR error class for PHP 4
[*] *
[*] * This class is supserseded by {@link PEAR_Exception} in PHP 5
[*] *
[*] * @category pear
[*] * @package PEAR
[*] * @author Stig Bakken <ssb@php.net>
[*] * @author Tomas V.V. Cox <cox@idecnet.com>
[*] * @author Gregory Beaver <cellog@php.net>
[*] * @copyright 1997-2006 The PHP Group
[*] * @license http://www.php.net/license/3_0.txt PHP License 3.0
[*] * @version Release: 1.7.2
[*] * @link http://pear.php.net/manual/en/core.pear.pear-error.php
[*] * @see PEAR::raiseError(), PEAR::throwError()
[*] * @since Class available since PHP 4.0.2
[*] */
[*]class PEAR_Error
[*]{
[*] // {{{ properties
[*]
[*] var $error_message_prefix = '';
[*] var $mode = PEAR_ERROR_RETURN;
[*] var $level = E_USER_NOTICE;
[*] var $code = -1;
[*] var $message = '';
[*] var $userinfo = '';
[*] var $backtrace = null;
[*]
[*] // }}}
[*] // {{{ constructor
[*]
[*] /**
[*] * PEAR_Error constructor
[*] *
[*] * @param string $message message
[*] *
[*] * @param int $code (optional) error code
[*] *
[*] * @param int $mode (optional) error mode, one of: PEAR_ERROR_RETURN,
[*] * PEAR_ERROR_PRINT, PEAR_ERROR_DIE, PEAR_ERROR_TRIGGER,
[*] * PEAR_ERROR_CALLBACK or PEAR_ERROR_EXCEPTION
[*] *
[*] * @param mixed $options (optional) error level, _OR_ in the case of
[*] * PEAR_ERROR_CALLBACK, the callback function or object/method
[*] * tuple.
[*] *
[*] * @param string $userinfo (optional) additional user/debug info
[*] *
[*] * @access public
[*] *
[*] */
[*] function PEAR_Error($message = 'unknown error', $code = null,
[*] $mode = null, $options = null, $userinfo = null)
[*] {
[*] if ($mode === null) {
[*] $mode = PEAR_ERROR_RETURN;
[*] }
[*] $this->message = $message;
[*] $this->code = $code;
[*] $this->mode = $mode;
[*] $this->userinfo = $userinfo;
[*] if (!PEAR::getStaticProperty('PEAR_Error', 'skiptrace')) {
[*] $this->backtrace = debug_backtrace();
[*] if (isset($this->backtrace[0]) && isset($this->backtrace[0]['object'])) {
[*] unset($this->backtrace[0]['object']);
[*] }
[*] }
[*] if ($mode & PEAR_ERROR_CALLBACK) {
[*] $this->level = E_USER_NOTICE;
[*] $this->callback = $options;
[*] } else {
[*] if ($options === null) {
[*] $options = E_USER_NOTICE;
[*] }
[*] $this->level = $options;
[*] $this->callback = null;
[*] }
[*] if ($this->mode & PEAR_ERROR_PRINT) {
[*] if (is_null($options) || is_int($options)) {
[*] $format = "%s";
[*] } else {
[*] $format = $options;
[*] }
[*] printf($format, $this->getMessage());
[*] }
[*] if ($this->mode & PEAR_ERROR_TRIGGER) {
[*] trigger_error($this->getMessage(), $this->level);
[*] }
[*] if ($this->mode & PEAR_ERROR_DIE) {
[*] $msg = $this->getMessage();
[*] if (is_null($options) || is_int($options)) {
[*] $format = "%s";
[*] if (substr($msg, -1) != "\n") {
[*] $msg .= "\n";
[*] }
[*] } else {
[*] $format = $options;
[*] }
[*] die(sprintf($format, $msg));
[*] }
[*] if ($this->mode & PEAR_ERROR_CALLBACK) {
[*] if (is_callable($this->callback)) {
[*] call_user_func($this->callback, $this);
[*] }
[*] }
[*] if ($this->mode & PEAR_ERROR_EXCEPTION) {
[*] trigger_error("PEAR_ERROR_EXCEPTION is obsolete, use class PEAR_Exception for exceptions", E_USER_WARNING);
[*] eval('$e = new Exception($this->message, $this->code);throw($e);');
[*] }
[*] }
[*]
[*] // }}}
[*] // {{{ getMode()
[*]
[*] /**
[*] * Get the error mode from an error object.
[*] *
[*] * @return int error mode
[*] * @access public
[*] */
[*] function getMode() {
[*] return $this->mode;
[*] }
[*]
[*] // }}}
[*] // {{{ getCallback()
[*]
[*] /**
[*] * Get the callback function/method from an error object.
[*] *
[*] * @return mixed callback function or object/method array
[*] * @access public
[*] */
[*] function getCallback() {
[*] return $this->callback;
[*] }
[*]
[*] // }}}
[*] // {{{ getMessage()
[*]
[*]
[*] /**
[*] * Get the error message from an error object.
[*] *
[*] * @return string full error message
[*] * @access public
[*] */
[*] function getMessage()
[*] {
[*] return ($this->error_message_prefix . $this->message);
[*] }
[*]
[*]
[*] // }}}
[*] // {{{ getCode()
[*]
[*] /**
[*] * Get error code from an error object
[*] *
[*] * @return int error code
[*] * @access public
[*] */
[*] function getCode()
[*] {
[*] return $this->code;
[*] }
[*]
[*] // }}}
[*] // {{{ getType()
[*]
[*] /**
[*] * Get the name of this error/exception.
[*] *
[*] * @return string error/exception name (type)
[*] * @access public
[*] */
[*] function getType()
[*] {
[*] return get_class($this);
[*] }
[*]
[*] // }}}
[*] // {{{ getUserInfo()
[*]
[*] /**
[*] * Get additional user-supplied information.
[*] *
[*] * @return string user-supplied information
[*] * @access public
[*] */
[*] function getUserInfo()
[*] {
[*] return $this->userinfo;
[*] }
[*]
[*] // }}}
[*] // {{{ getDebugInfo()
[*]
[*] /**
[*] * Get additional debug information supplied by the application.
[*] *
[*] * @return string debug information
[*] * @access public
[*] */
[*] function getDebugInfo()
[*] {
[*] return $this->getUserInfo();
[*] }
[*]
[*] // }}}
[*] // {{{ getBacktrace()
[*]
[*] /**
[*] * Get the call backtrace from where the error was generated.
[*] * Supported with PHP 4.3.0 or newer.
[*] *
[*] * @param int $frame (optional) what frame to fetch
[*] * @return array Backtrace, or NULL if not available.
[*] * @access public
[*] */
[*] function getBacktrace($frame = null)
[*] {
[*] if (defined('PEAR_IGNORE_BACKTRACE')) {
[*] return null;
[*] }
[*] if ($frame === null) {
[*] return $this->backtrace;
[*] }
[*] return $this->backtrace[$frame];
[*] }
[*]
[*] // }}}
[*] // {{{ addUserInfo()
[*]
[*] function addUserInfo($info)
[*] {
[*] if (empty($this->userinfo)) {
[*] $this->userinfo = $info;
[*] } else {
[*] $this->userinfo .= " ** $info";
[*] }
[*] }
[*]
[*] // }}}
[*] // {{{ toString()
[*] function __toString()
[*] {
[*] return $this->getMessage();
[*] }
[*] // }}}
[*] // {{{ toString()
[*]
[*] /**
[*] * Make a string representation of this object.
[*] *
[*] * @return string a string with an object summary
[*] * @access public
[*] */
[*] function toString() {
[*] $modes = array();
[*] $levels = array(E_USER_NOTICE => 'notice',
[*] E_USER_WARNING => 'warning',
[*] E_USER_ERROR => 'error');
[*] if ($this->mode & PEAR_ERROR_CALLBACK) {
[*] if (is_array($this->callback)) {
[*] $callback = (is_object($this->callback[0]) ?
[*] strtolower(get_class($this->callback[0])) :
[*] $this->callback[0]) . '::' .
[*] $this->callback[1];
[*] } else {
[*] $callback = $this->callback;
[*] }
[*] return sprintf('[%s: message="%s" code=%d mode=callback '.
[*] 'callback=%s prefix="%s" info="%s"]',
[*] strtolower(get_class($this)), $this->message, $this->code,
[*] $callback, $this->error_message_prefix,
[*] $this->userinfo);
[*] }
[*] if ($this->mode & PEAR_ERROR_PRINT) {
[*] $modes[] = 'print';
[*] }
[*] if ($this->mode & PEAR_ERROR_TRIGGER) {
[*] $modes[] = 'trigger';
[*] }
[*] if ($this->mode & PEAR_ERROR_DIE) {
[*] $modes[] = 'die';
[*] }
[*] if ($this->mode & PEAR_ERROR_RETURN) {
[*] $modes[] = 'return';
[*] }
[*] return sprintf('[%s: message="%s" code=%d mode=%s level=%s '.
[*] 'prefix="%s" info="%s"]',
[*] strtolower(get_class($this)), $this->message, $this->code,
[*] implode("|", $modes), $levels[$this->level],
[*] $this->error_message_prefix,
[*] $this->userinfo);
[*] }
[*]
[*] // }}}
[*]}
[*]
[*]/*
[*] * Local Variables:
[*] * mode: php
[*] * tab-width: 4
[*] * c-basic-offset: 4
[*] * End:
[*] */
[*]?>
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