Meaningful example different from set_error_handler

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@183654 c90b9560-bf6c-de11-be94-00142212c4b1
This commit is contained in:
Jakub Vrana 2005-04-05 12:00:24 +00:00
parent 5f343aab92
commit 71ece1d8d3

View file

@ -1,5 +1,5 @@
<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.8 $ -->
<!-- $Revision: 1.9 $ -->
<!-- splitted from ./en/functions/errorfunc.xml, last change in rev 1.1 -->
<refentry id="function.restore-error-handler">
<refnamediv>
@ -27,58 +27,30 @@
<function>trigger_error</function>.
</para>
<para>
The example below shows the handling of internal exceptions by
triggering errors and handling them with a user defined function. It then
restores the original PHP error handling:
<example>
<title>
Error handling with <function>set_error_handler</function>,
<function>trigger_error</function> and
<function>restore_error_handler</function>
Decide if <function>unserialize</function> caused an error, then
restore the original error handler.
</title>
<programlisting role="php">
<![CDATA[
<?php
// set the error reporting level for this script
error_reporting(E_USER_ERROR | E_USER_WARNING | E_USER_NOTICE);
// error handler function
function myErrorHandler($errno, $errstr, $errfile, $errline)
function unserialize_handler($errno, $errstr)
{
switch ($errno) {
case E_USER_ERROR:
echo "<b>My ERROR</b> [$errno] $errstr<br />\n";
echo " Fatal error in line $errline of file $errfile";
echo ", PHP " . PHP_VERSION . " (" . PHP_OS . ")<br />\n";
echo "Aborting...<br />\n";
exit(1);
break;
case E_USER_WARNING:
echo "<b>My WARNING</b> [$errno] $errstr<br />\n";
break;
case E_USER_NOTICE:
echo "<b>My NOTICE</b> [$errno] $errstr<br />\n";
break;
default:
echo "My unkown error type: [$errno] $errstr<br />\n";
break;
}
echo "Invalid serialized value.\n";
}
set_error_handler("myErrorHandler");
trigger_error('Test error', E_USER_WARNING);
restore_error_handler(); // Will restore standard PHP handler
trigger_error('Test error', E_USER_WARNING);
$serialized = 'foo';
set_error_handler('unserialize_handler');
$original = unserialize($serialized);
restore_error_handler();
?>
]]>
</programlisting>
&example.outputs.similar;
&example.outputs;
<screen>
<![CDATA[
My ERROR [512] Test error
Warning: Test error in C:\Program Files\Apache Group\Apache2\htdocs\readdir.php on line 45
Invalid serialized value.
]]>
</screen>
</example>