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exit

exit

Terminate the current script with a status code or message

never **exit**  $status

Terminates execution of the script.

and will always be executed even if is called. However, finally blocks are never executed. Shutdown functionsobject destructorsexit

An exit code of is used to indicate that the program succeeded in its tasks. Any other value indicates some sort of error occurred during execution. 0

is a special function,

because it has a dedicated token in the parser, as such it can be used like a statement (i.e. without parentheses) to terminate the script with the default status code. exit

Let op: > It is not possible to disable, or create a namespaced function shadowing the global function. exit

status If is a string, this function prints the just before exiting. The exit code returned by PHP is . status``status``0

  If  is an ,
  the exit code returned by PHP will be .
  
 `status``int``status`> **Opmerking:** > Exit codes should be in the range  to ,

    the exit code  is reserved by PHP and should not be used.
   `0``254``255`

Waarschuwing: > Prior to PHP 8.4.0, did not follow PHP's standard , nor respect the

   declare.
  `exit`type juggling semanticsstrict_types


   Any value not of type  was cast to 
   including  and  values.
   As of PHP 8.4.0, it follows the usual type juggling semantics and throws a
    on invalid values.
  `int``string``resource``array`

As this terminates the PHP script, no value is returned.

Voorbeeld: Basic example

<?php

// exit program normally
exit();
exit(0);

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

?>

**Voorbeeld: example with a **

<?php

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

?>

Voorbeeld: 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.';
?>

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

Voorbeeld: as a statement

<?php

// exit program normally with exit code 0
exit;

?>

Waarschuwing: > Prior to PHP 8.4.0, was a language construct and not a function, therefore it was not possible to call it using , or . exitvariable functionsnamed arguments

register_shutdown_functionShutdown functionsobject destructors

Vorige ← eval Volgende get_browser →

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