PHP Australia Conference 2015

is_executable

(PHP 4, PHP 5)

is_executableTells whether the filename is executable

설명

bool is_executable ( string $filename )

Tells whether the filename is executable.

인수

filename

Path to the file.

반환값

Returns TRUE if the filename exists and is executable, or FALSE on error.

변경점

버전 설명
5.0.0 is_executable() became available with Windows

예제

Example #1 is_executable() example

<?php

$file 
'/home/vincent/somefile.sh';

if (
is_executable($file)) {
    echo 
$file.' is executable';
} else {
    echo 
$file.' is not executable';
}

?>

오류/예외

Upon failure, an E_WARNING is emitted.

주의

Note: 이 함수의 결과는 캐시에 저장합니다. 자세한 설명은 clearstatcache()를 참고하십시오.

Tip

PHP 5.0.0부터 이 함수는 몇몇 URL 래퍼를 사용할 수 있습니다. 기능적으로 stat() 패밀리를 지원하는 래퍼 목록은 Supported Protocols and Wrappers를 참고하십시오.

참고

  • is_file() - Tells whether the filename is a regular file
  • is_link() - Tells whether the filename is a symbolic link

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User Contributed Notes 1 note

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2
david at littlesystems dot com dot au
12 years ago
to test whether the directory /home/david is executable (regardless of whether it is readable or writeable), issue the command:
$my_isWriteable = @file_exists("/home/david/.")

the @ gets rid of the warning when this command fails when the directory is not executable.
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