update : 2015.11.03
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Output a message and terminate the current script
Misc. 함수 목록
PHP Manual

exit

(PHP 4, PHP 5)

exit — Output a message and terminate the current script

설명

void exit ([ string $status ] )
void exit ( int $status )

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.

인수

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.

Note: PHP >= 4.2.0 does NOT print the status if it is an integer.

반환값

값을 반환하지 않습니다.

예제

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.';
?>

위 예제의 출력:

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

주의

Note: 이것은 함수가 아닌 언어 구조이기 때문에, 가변 함수 방식으로 호출할 수 없습니다.

Note:

This language construct is equivalent to die().

참고

Misc. 함수 목록
PHP Manual