SET_EXCEPTION_HANDLER(3) 1 SET_EXCEPTION_HANDLER(3)
set_exception_handler - Sets a user-defined exception handler function
SYNOPSIS
callable set_exception_handler (callable $exception_handler)
DESCRIPTION
Sets the default exception handler if an exception is not caught within a try/catch block. Execution will stop after the $exception_han-
dler is called.
PARAMETERS
o $exception_handler
- Name of the function to be called when an uncaught exception occurs. This handler function needs to accept one parameter, which
will be the exception object that was thrown. This is the handler signature:
void handler (Exception $ex) NULL may be passed instead, to reset this handler to its default state.
Caution
Note that providing an explicit Exception type hint for the $ex parameter in your callback will cause issues with the
changed exception hierarchy in PHP 7.
RETURN VALUES
Returns the name of the previously defined exception handler, or NULL on error. If no previous handler was defined, NULL is also returned.
CHANGELOG
+--------+---------------------------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+---------------------------------------------------+
| 5.5.0 | |
| | |
| | Previously, if NULL was passed then this func- |
| | tion returned TRUE. It returns the previous han- |
| | dler since PHP 5.5.0. |
| | |
+--------+---------------------------------------------------+
EXAMPLES
Example #1
set_exception_handler(3) example
<?php
function exception_handler($exception) {
echo "Uncaught exception: " , $exception->getMessage(), "
";
}
set_exception_handler('exception_handler');
throw new Exception('Uncaught Exception');
echo "Not Executed
";
?>
SEE ALSO
restore_exception_handler(3), restore_error_handler(3), error_reporting(3), information about the callback type, PHP 5 Exceptions.
PHP Documentation Group SET_EXCEPTION_HANDLER(3)
