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set_exception_handler

PHP Manual
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set_exception_handler

(PHP 5)

set_exception_handler -- Sets a user-defined exception handler function

Description

string set_exception_handler ( callback exception_handler )

Sets the default exception handler if an exception is not caught within a try/catch block. Execution will stop after the exception_handler is called.

Parameters

exception_handler: Name of the function to be called when an uncaught exception occurs. This function must be defined before calling set_exception_handler(). This handler function needs to accept one parameter, which will be the exception object that was thrown.

Return Values

Returns the name of the previously defined exception handler, or NULL on error. If no previous handler was defined, NULL is also returned.

Examples

Example 1. set_exception_handler() example


<?php
function exception_handler($exception) {
  echo "Uncaught exception: " , $exception->getMessage(), "\n";
}

set_exception_handler('exception_handler');

throw new Exception('Uncaught Exception');
echo "Not Executed\n";
?>

See Also

restore_exception_handler(), restore_error_handler(), error_reporting(), information about the callback type, and PHP 5 Exceptions.

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