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- <?php
- //
- // +----------------------------------------------------------------------+
- // | PHP version 4.0 |
- // +----------------------------------------------------------------------+
- // | Copyright (c) 1997-2001 The PHP Group |
- // +----------------------------------------------------------------------+
- // | This source file is subject to version 2.0 of the PHP license, |
- // | that is bundled with this package in the file LICENSE, and is |
- // | available at through the world-wide-web at |
- // | http://www.php.net/license/2_02.txt. |
- // | If you did not receive a copy of the PHP license and are unable to |
- // | obtain it through the world-wide-web, please send a note to |
- // | license@php.net so we can mail you a copy immediately. |
- // +----------------------------------------------------------------------+
- // | Authors: Sterling Hughes <sterling@php.net> |
- // | Stig Bakken <ssb@fast.no> |
- // +----------------------------------------------------------------------+
- //
- // $Id: PEAR.php.in,v 1.15 2001/03/10 09:59:15 ssb Exp $
- //
-
- 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);
-
- define('PHP_BINDIR', '@prefix@/bin');
- define('PEAR_INSTALL_DIR', '@PEAR_INSTALLDIR@');
- define('PEAR_EXTENSION_DIR', '@EXTENSION_DIR@');
-
- $_PEAR_default_error_mode = PEAR_ERROR_RETURN;
- $_PEAR_default_error_options = E_USER_NOTICE;
- $_PEAR_default_error_callback = '';
- $_PEAR_destructor_object_list = array();
-
- //
- // Tests needed: - PEAR inheritance
- // - destructors
- //
-
- /**
- * Base class for other PEAR classes. Provides rudimentary
- * emulation of destructors.
- *
- * If you want a destructor in your class, inherit PEAR and make a
- * destructor method called _yourclassname (same name as the
- * constructor, but with a "_" prefix). Also, in your constructor you
- * have to call the PEAR constructor: <code>$this->PEAR();</code>.
- * 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 <code>error_log()</code>, <code>syslog()</code> or
- * something like that instead.
- *
- * @since PHP 4.0.2
- * @author Stig Bakken <ssb@fast.no>
- */
- class PEAR
- {
- // {{{ properties
-
- var $_debug = false;
- var $_default_error_mode = null;
- var $_default_error_options = null;
- var $_default_error_handler = '';
-
- // }}}
-
- // {{{ constructor
-
- /**
- * Constructor. Registers this object in
- * $_PEAR_destructor_object_list for destructor emulation if a
- * destructor object exists.
- */
- function PEAR() {
- if (method_exists($this, "_".get_class($this))) {
- global $_PEAR_destructor_object_list;
- $_PEAR_destructor_object_list[] = &$this;
- }
- if ($this->_debug) {
- printf("PEAR constructor called, class=%s\n",
- get_class($this));
- }
- }
-
- // }}}
- // {{{ 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
- */
- function _PEAR() {
- if ($this->_debug) {
- printf("PEAR destructor called, class=%s\n",
- get_class($this));
- }
- }
-
- // }}}
- // {{{ isError()
-
- /**
- * Tell whether a value is a PEAR error.
- *
- * @param $data the value to test
- * @access public
- * @return bool true if $data is an error
- */
- function isError($data) {
- return (bool)(is_object($data) &&
- (get_class($data) == "pear_error" ||
- is_subclass_of($data, "pear_error")));
- }
-
- // }}}
- // {{{ setErrorHandling()
-
- /**
- * Sets how errors generated by this DB 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 $mode int
- * one of PEAR_ERROR_RETURN, PEAR_ERROR_PRINT,
- * PEAR_ERROR_TRIGGER, PEAR_ERROR_DIE or
- * PEAR_ERROR_CALLBACK.
- *
- * @param $options mixed
- * Ignored unless $mode is PEAR_ERROR_TRIGGER or
- * PEAR_ERROR_CALLBACK. When $mode is PEAR_ERROR_TRIGGER,
- * this parameter is expected to be an integer and one of
- * E_USER_NOTICE, E_USER_WARNING or E_USER_ERROR. When
- * $mode is PEAR_ERROR_CALLBACK, this parameter is expected
- * to be the callback function or method. A callback
- * function is a string with the name of the function, a
- * callback method is an array of two elements: the element
- * at index 0 is the object, and the element at index 1 is
- * the name of the method to call in the object.
- *
- * @see PEAR_ERROR_RETURN
- * @see PEAR_ERROR_PRINT
- * @see PEAR_ERROR_TRIGGER
- * @see PEAR_ERROR_DIE
- * @see PEAR_ERROR_CALLBACK
- *
- * @since PHP 4.0.5
- */
-
- function setErrorHandling($mode, $options = null)
- {
- if (isset($this)) {
- $setmode = &$this->_default_error_mode;
- $setoptions = &$this->_default_error_options;
- $setcallback = &$this->_default_error_callback;
- } else {
- $setmode = &$GLOBALS['_PEAR_default_error_mode'];
- $setoptions = &$GLOBALS['_PEAR_default_error_options'];
- $setcallback = &$GLOBALS['_PEAR_default_error_callback'];
- }
-
- switch ($mode) {
- 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 = $mode;
- if (is_string($options) ||
- (is_array($options) && sizeof($options) == 2 &&
- is_object($options[0]) && is_string($options[1]))) {
- $setcallback = $options;
- } else {
- trigger_error("invalid error callback", E_USER_WARNING);
- }
- break;
-
- default:
- trigger_error("invalid error mode", E_USER_WARNING);
- break;
- }
- }
-
- // }}}
- // {{{ raiseError()
-
- /**
- * This method is a wrapper that returns an instance of PEAR_Error
- * with this object's default error handling applied. If the
- * $mode and $options parameters are not specified, the object's
- * defaults are used.
- *
- * @param $message a text error message
- * @param $code a numeric error code (it is up to your class
- * to define these if you want to use codes)
- * @param $mode One of PEAR_ERROR_RETURN, PEAR_ERROR_PRINT,
- * PEAR_ERROR_TRIGGER, PEAR_ERROR_DIE or
- * PEAR_ERROR_CALLBACK.
- * @param $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 $userinfo If you need to pass along for example debug
- * information, this parameter is meant for that.
- *
- * @return object a PEAR error object
- *
- * @see PEAR::setErrorHandling
- *
- * @since PHP 4.0.5
- */
-
- function &raiseError($message = null, $code = null, $mode = null,
- $options = null, $userinfo = null)
- {
- if ($mode === null) {
- $mode = $this->_default_error_mode;
- if ($mode === null) {
- $mode = $GLOBALS['_PEAR_default_error_mode'];
- }
- }
-
- if ($mode == PEAR_ERROR_TRIGGER && $options === null) {
- $options = $this->_default_error_options;
- if ($options === null) {
- $options = $GLOBALS['_PEAR_default_error_options'];
- }
- }
-
- if ($mode == PEAR_ERROR_CALLBACK) {
- if (!is_string($options) &&
- !(is_array($options) && sizeof($options) == 2 &&
- is_object($options[0]) && is_string($options[1]))) {
- $options = $this->_default_error_callback;
- if ($options === null) {
- $options = $GLOBALS['_PEAR_default_error_callback'];
- }
- }
- } else {
- if ($options === null) {
- $options = $this->_default_error_options;
- }
- }
- return new PEAR_Error($message, $code, $mode, $options, $userinfo);
- }
-
- // }}}
- }
-
- // {{{ _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);
- while (list($k, $objref) = each($_PEAR_destructor_object_list)) {
- $destructor = "_".get_class($objref);
- if (method_exists($objref, $destructor)) {
- $objref->$destructor();
- }
- }
- // Empty the object list to ensure that destructors are
- // not called more than once.
- $_PEAR_destructor_object_list = array();
- }
- }
-
- // }}}
-
- class PEAR_Error
- {
- // {{{ properties
-
- var $error_message_prefix = '';
- var $error_prepend = '';
- var $error_append = '';
- var $mode = PEAR_ERROR_RETURN;
- var $level = E_USER_NOTICE;
- var $code = -1;
- var $message = '';
- var $debuginfo = '';
-
- // Wait until we have a stack-groping function in PHP.
- //var $file = '';
- //var $line = 0;
-
-
- // }}}
- // {{{ constructor
-
- /**
- * PEAR_Error constructor
- *
- * @param $message error message
- *
- * @param $code (optional) error code
- *
- * @param $mode (optional) error mode, one of: PEAR_ERROR_RETURN,
- * PEAR_ERROR_PRINT, PEAR_ERROR_DIE, PEAR_ERROR_TRIGGER or
- * PEAR_ERROR_CALLBACK
- *
- * @param $level (optional) error level, _OR_ in the case of
- * PEAR_ERROR_CALLBACK, the callback function or object/method
- * tuple.
- *
- * @access public
- *
- */
- function PEAR_Error($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 = $userinfo;
- if ($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) {
- print $this->getMessage();
- }
- if ($this->mode & PEAR_ERROR_TRIGGER) {
- trigger_error($this->getMessage(), $this->level);
- }
- if ($this->mode & PEAR_ERROR_DIE) {
- die($this->getMessage());
- }
- if ($this->mode & PEAR_ERROR_CALLBACK) {
- if (is_string($this->callback) && strlen($this->callback)) {
- call_user_func($this->callback, $this);
- } elseif (is_array($this->callback) &&
- sizeof($this->callback) == 2 &&
- is_object($this->callback[0]) &&
- is_string($this->callback[1]) &&
- strlen($this->callback[1])) {
- call_user_method($this->callback[1], $this->callback[0],
- $this);
- }
- }
- }
-
- // }}}
- // {{{ 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_prepend . $this->error_message_prefix .
- $this->message . $this->error_append);
- }
-
-
- // }}}
- // {{{ 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();
- }
-
- // }}}
- // {{{ 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)) {
- $callback = get_class($this->callback[0]) . "::" .
- $this->callback[1];
- } else {
- $callback = $this->callback;
- }
- return sprintf('[%s: message="%s" code=%d mode=callback '.
- 'callback=%s prefix="%s" prepend="%s" append="%s" '.
- 'debug="%s"]',
- get_class($this), $this->message, $this->code,
- $callback, $this->error_message_prefix,
- $this->error_prepend, $this->error_append,
- $this->debuginfo);
- }
- if ($this->mode & PEAR_ERROR_CALLBACK) {
- $modes[] = "callback";
- }
- if ($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) {
- $modes[] = "return";
- }
- return sprintf('[%s: message="%s" code=%d mode=%s level=%s prefix="%s" '.
- 'prepend="%s" append="%s" debug="%s"]',
- get_class($this), $this->message, $this->code,
- implode("|", $modes), $levels[$this->level],
- $this->error_message_prefix,
- $this->error_prepend, $this->error_append,
- $this->debuginfo);
- }
-
- // }}}
- }
-
- register_shutdown_function("_PEAR_call_destructors");
-
- /*
- * Local Variables:
- * mode: c++
- * tab-width: 4
- * c-basic-offset: 4
- * End:
- */
- ?>
-