Php/docs/function.exit

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exit

(PHP 4, PHP 5, PHP 7)

exitOutput a message and terminate the current script


Description

exit ([ string $status ] ) : void

exit ( int $status ) : void

Terminates execution of the script. Shutdown functions and object destructors will always be executed even if exit is called.

exit is a language construct and it can be called without parentheses if no status is passed.


Parameters

status

If status is a string, this function prints the status just before exiting.

If status is an int, that value will be used as the exit status and not printed. Exit statuses should be in the range 0 to 254, the exit status 255 is reserved by PHP and shall not be used. The status 0 is used to terminate the program successfully.


Return Values

No value is returned.


Examples

Example #1 exit example

<?php$filename = '/path/to/data-file';$file = fopen($filename, 'r')    or exit("unable to open file ($filename)");?>

Example #2 exit status example

<?php//exit program normallyexit;exit();exit(0);//exit with an error codeexit(1);exit(0376); //octal?>

Example #3 Shutdown functions and destructors run regardless

<?phpclass Foo{    public function __destruct()    {        echo 'Destruct: ' . __METHOD__ . '()' . PHP_EOL;    }}function shutdown(){    echo 'Shutdown: ' . __FUNCTION__ . '()' . PHP_EOL;}$foo = new Foo();register_shutdown_function('shutdown');exit();echo 'This will not be output.';?>

The above example will output:


 Shutdown: shutdown()
 Destruct: Foo::__destruct()
 

Notes

Note:

Because this is a

language construct and not a function, it cannot be called using variable functions.

Note:

This language construct is equivalent to die().

See Also