exit

(PHP 4, PHP 5, PHP 7)

exit — Output a message and terminate the current script

Descrierea

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.

Parametri

status

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

If status is an integer, 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.

Valorile întoarse

Nu este întoarsă nici o valoare.

Exemple

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 normally
exit;
exit();
exit(0);

//exit with an error code
exit(1);
exit(0376); //octal

?>

Example #3 Shutdown functions and destructors run regardless

<?php
class 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.';
?>

Exemplul de mai sus va afișa:

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

Note

Notă: Deoarece aceasta este o construcție a limbajului și nu o funcție, ea nu poate fi apelată utilizând funcții de operare cu variabile .

Notă:

This language construct is equivalent to die().

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