Exception::__clone
E_USER_WARNING, E_USER_NOTICE, and any other non-terminating error codes, are useless and act like E_USER_ERROR (which terminate) when you combine a custom ERROR_HANDLER with ErrorException and do not CATCH the error. There is NO way to return execution to the parent scope in the EXCEPTION_HANDLER.
<?php
error_reporting(E_ALL);
define('DEBUG', true);
define('LINEBREAK', "\r\n");
error::initiate('./error_backtrace.log');
try
trigger_error("First error", E_USER_NOTICE);
catch ( ErrorException $e )
print("Caught the error: ".$e->getMessage."<br />\r\n" );
trigger_error("This event WILL fire", E_USER_NOTICE);
trigger_error("This event will NOT fire", E_USER_NOTICE);
abstract class error {
public static $LIST = array();
private function __construct() {}
public static function initiate( $log = false ) {
set_error_handler( 'error::err_handler' );
set_exception_handler( 'error::exc_handler' );
if ( $log !== false ) {
if ( ! ini_get('log_errors') )
ini_set('log_errors', true);
if ( ! ini_get('error_log') )
ini_set('error_log', $log);
}
}
public static function err_handler($errno, $errstr, $errfile, $errline, $errcontext) {
$l = error_reporting();
if ( $l & $errno ) {
$exit = false;
switch ( $errno ) {
case E_USER_ERROR:
$type = 'Fatal Error';
$exit = true;
break;
case E_USER_WARNING:
case E_WARNING:
$type = 'Warning';
break;
case E_USER_NOTICE:
case E_NOTICE:
case @E_STRICT:
$type = 'Notice';
break;
case @E_RECOVERABLE_ERROR:
$type = 'Catchable';
break;
default:
$type = 'Unknown Error';
$exit = true;
break;
}
$exception = new \ErrorException($type.': '.$errstr, 0, $errno, $errfile, $errline);
if ( $exit ) {
exc_handler($exception);
exit();
}
else
throw $exception;
}
return false;
}
function exc_handler($exception) {
$log = $exception->getMessage() . "\n" . $exception->getTraceAsString() . LINEBREAK;
if ( ini_get('log_errors') )
error_log($log, 0);
print("Unhandled Exception" . (DEBUG ? " - $log" : ''));
}
}
?>
ErrorException
(PHP 5 >= 5.1.0)
導入
エラー例外です。
クラス概要
ErrorException
extends
Exception
{
/* プロパティ */
/* 継承したプロパティ */
/* メソッド */
public __construct
([ string
$message = ""
[, int $code = 0
[, int $severity = 1
[, string $filename = __FILE__
[, int $lineno = __LINE__
[, Exception $previous = NULL
]]]]]] )/* 継承したメソッド */
}プロパティ
- severity
-
例外の深刻度
例
例1 set_error_handler() を使用した、エラーメッセージから ErrorException への変換
<?php
function exception_error_handler($errno, $errstr, $errfile, $errline ) {
throw new ErrorException($errstr, $errno, 0, $errfile, $errline);
}
set_error_handler("exception_error_handler");
/* 例外を発生させます */
strpos();
?>
上の例の出力は、 たとえば以下のようになります。
Fatal error: Uncaught exception 'ErrorException' with message 'Wrong parameter count for strpos()' in /home/bjori/tmp/ex.php:8
Stack trace:
#0 [internal function]: exception_error_handler(2, 'Wrong parameter...', '/home/bjori/php...', 8, Array)
#1 /home/bjori/php/cleandocs/test.php(8): strpos()
#2 {main}
thrown in /home/bjori/tmp/ex.php on line 8
目次
- ErrorException::__construct — 例外を作成する
- ErrorException::getSeverity — 例外の深刻度を取得する
add a note
User Contributed Notes
ErrorException - [5 notes]
randallgirard at hotmail dot com ¶
3 years ago
luke at cywh dot com ¶
4 years ago
To add to the comments made by chris AT cmbuckley DOT co DOT uk about the ErrorException problem with args:
I noticed that the problem is in the ErrorException class itself, not the Exception class. When using just the exception class, it's no longer an issue. Besides the args problem, the only difference between Exception and ErrorException in the stack trace is that the args are left out of the error handler exception function. I'm not sure if this was on purpose or not, but it shouldn't hurt to show this information anyway.
So instead of using this broken extended class, you can ignore it and make your own extended class and avoid the problem all together:
<?php
header('Content-Type: text/plain');
class ErrorHandler extends Exception {
protected $severity;
public function __construct($message, $code, $severity, $filename, $lineno) {
$this->message = $message;
$this->code = $code;
$this->severity = $severity;
$this->file = $filename;
$this->line = $lineno;
}
public function getSeverity() {
return $this->severity;
}
}
function exception_error_handler($errno, $errstr, $errfile, $errline ) {
throw new ErrorHandler($errstr, 0, $errno, $errfile, $errline);
}
set_error_handler("exception_error_handler", E_ALL);
function A() {
$foo->bar; // Purposely cause error
}
function B($c) {
A();
}
try {
B('foobar');
} catch (Exception $e) {
var_dump($e->getTrace());
}
?>
The only thing I wish I could do was remove the entry for the error handler function because it's quite irrelevant. Maybe that's what they were trying to do with the ErrorException class? Either way, you can't change it because the trace functions are final, and the variable is private.
triplepoint at gmail dot com ¶
3 years ago
As noted below, it's important to realize that unless caught, any Exception thrown will halt the script. So converting EVERY notice, warning, or error to an ErrorException will halt your script when something harmlesss like E_USER_NOTICE is triggered.
It seems to me the best use of the ErrorException class is something like this:
<?php
function custom_error_handler($number, $string, $file, $line, $context)
{
// Determine if this error is one of the enabled ones in php config (php.ini, .htaccess, etc)
$error_is_enabled = (bool)($number & ini_get('error_reporting') );
// -- FATAL ERROR
// throw an Error Exception, to be handled by whatever Exception handling logic is available in this context
if( in_array($number, array(E_USER_ERROR, E_RECOVERABLE_ERROR)) && $error_is_enabled ) {
throw new ErrorException($errstr, 0, $errno, $errfile, $errline);
}
// -- NON-FATAL ERROR/WARNING/NOTICE
// Log the error if it's enabled, otherwise just ignore it
else if( $error_is_enabled ) {
error_log( $string, 0 );
return false; // Make sure this ends up in $php_errormsg, if appropriate
}
}
?>
Setting this function as the error handler will result in ErrorExceptions only being thrown for E_USER_ERROR and E_RECOVERABLE_ERROR, while other enabled error types will simply get error_log()'ed.
It's worth noting again that no matter what you do, "E_ERROR, E_PARSE, E_CORE_ERROR, E_CORE_WARNING, E_COMPILE_ERROR, E_COMPILE_WARNING, and most of E_STRICT" will never reach your custom error handler, and therefore will not be converted into ErrorExceptions. Plan accordingly.
xianrenb at gmail dot com ¶
8 months ago
<?php
function exception_error_handler($errno, $errstr, $errfile, $errline ) {
throw new ErrorException($errstr, $errno, 0, $errfile, $errline);
}
set_error_handler("exception_error_handler");
/* Trigger exception */
strpos();
?>
Please note that property $severity of class ErrorException is set to a constant zero for all kinds of errors in the above example.
I think it was a bug and tried to file a bug report, but it was closed as not a bug, so I could not say the above is wrong.
Let me show an example that uses $severity not as a constant:
<?php
set_error_handler(function ($errno, $errstr, $errfile, $errline) {
throw new ErrorException($errstr, 0, $errno, $errfile, $errline);
});
class MyClass {
public function methodA() {
echo("methodA:\n");
strpos();
}
public function methodB() {
echo("methodB:\n");
trigger_error("warning message form methodB", E_WARNING);
}
public function methodC() {
echo("methodC:\n");
throw new ErrorException();
}
public function methodD() {
echo("methodD:\n");
throw new ErrorException('warning message from methodD', 0,
E_WARNING);
}
public function run($i) {
if ($i === 0) {
$this->methodA();
} else if ($i === 1) {
$this->methodB();
} else if ($i === 2) {
$this->methodC();
} else {
$this->methodD();
}
}
public function test() {
for ($i = 0; $i < 4; ++$i) {
try {
$this->run($i);
} catch (ErrorException $e) {
if ($e->getSeverity() === E_ERROR) {
echo("E_ERROR triggered.\n");
} else if ($e->getSeverity() === E_WARNING) {
echo("E_WARNING triggered.\n");
}
}
}
}
}
$myClass = new MyClass();
$myClass->test();
?>
Please note that methodC() uses (constructor of) class ErrorException with default parameters.
I believe it is the original intention to make $severity having default value of 1, which is exactly equal to E_ERROR.
Using property $code or Exception::getCode() to compare with E_* values could not do the same thing (as in methodC()), as $code has a default value of 0, and class Exception has it too, users may use $code for some other purposes.
chris AT cmbuckley DOT co DOT uk ¶
4 years ago
The backtrace of ErrorException is broken in PHP 5.2 (listed at http://bugs.php.net/bug.php?id=46449 and explained at http://bugs.php.net/bug.php?id=45895#c140511).
A simple fix for your exception handler:
<?php
$backtrace = $exception->getTrace();
if ($exception instanceof ErrorException) {
for ($i = count($backtrace) - 1; $i > 0; --$i) {
$backtrace[$i]['args'] = $backtrace[$i - 1]['args'];
}
}
?>