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+<?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 1997-2006 The PHP Group
+ * @license http://www.php.net/license/3_0.txt PHP License 3.0
+ * @version CVS: $Id: PEAR.php 127 2008-01-17 20:21:37Z dcoulter $
+ * @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: 1.6.2
+ * @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 {
+ $ec = 'PEAR_Error';
+ }
+ if ($skipmsg) {
+ $a = &new $ec($code, $mode, $options, $userinfo);
+ return $a;
+ } 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: 1.6.2
+ * @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()
+
+ /**
+ * 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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