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PHP - Function set_exception_handler()
Syntax
string set_exception_handler ( callback $exception_handler );
Definition and Usage
This function sets the default exception handler if an exception is not caught within a try/catch block. Execution will stop after the exception_handler is called.
Parameters
Sr.No | Parameter & Description |
---|---|
1 |
exception_handler Name of the function to be called when an uncaught exception occurs. This function must be defined before calling set_exception_handler(). This handler function needs to accept one parameter, which will be the exception object that was thrown. |
Return Value
It returns the name of the previously defined exception handler, or NULL on error. If no previous handler was defined, NULL is also returned.
Example
Following is the usage of this function −
<?php function exception_handler($exception) { echo "Uncaught exception is : " , $exception->getMessage(), "\n"; } set_exception_handler('exception_handler'); set_exception_handler(); throw new Exception('Not Found Exception'); echo "not included Executed\n"; ?>
This will produce the following result −
Uncaught exception is: Not Found Exception
php_function_reference.htm
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