When working with FFI under a PHP ZTS environment, there is no standard way to change the directory with libraries (dll/so/dylib/etc), so to get around this problem, you should use something like this polyfill:
<?php
$directory = 'path/to/libraries';
switch (\PHP_OS_FAMILY) {
case 'Windows':
\FFI::cdef('extern unsigned char SetDllDirectoryA(const char* lpPathName);', 'kernel32.dll')
->SetDllDirectoryA($directory)
;
break;
case 'Linux':
case 'BSD':
\FFI::cdef('int setenv(const char *name, const char *value, int overwrite);')
->setenv('LD_LIBRARY_PATH', $directory, 1)
;
break;
case 'Darwin':
\FFI::cdef('int setenv(const char *name, const char *value, int overwrite);')
->setenv('DYLD_LIBRARY_PATH', $directory, 1)
;
break;
}
?>
chdir
(PHP 4, PHP 5, PHP 7)
chdir — 디렉토리 변경
설명
bool chdir
( string
$directory
)
PHP의 현재 디렉토리를 directory로 변경합니다.
인수
-
directory -
새 현재 디렉토리
반환값
성공 시 TRUE를, 실패 시 FALSE를 반환합니다.
예제
Example #1 chdir() 예제
<?php
// 현재 디렉토리
echo getcwd() . "\n";
chdir('public_html');
// 현재 디렉토리
echo getcwd() . "\n";
?>
위 예제의 출력 예시:
/home/vincent /home/vincent/public_html
주의
Note: 안전 모드를 활성화했을 경우, PHP는 작업하려는 디렉토리가 실행중인 스크립트와 같은 UID(owner)를 가지고 있는지 확인합니다.
add a note
User Contributed Notes 3 notes
nesk at xakep dot ru ¶
4 years ago
php dot duke at qik dot nl ¶
15 years ago
When changing dir's under windows environments:
<?php
$path="c:\temp"';
chdir($path);
/* getcwd() gives you back "c:\temp" */
$path="c:\temp\"';
chdir($path);
/* getcwd() gives you back "c:\temp\" */
?>
to work around this inconsistency
doing a chdir('.') after the chdir always gives back "c:\temp"
herwin at snt dot utwente dot nl ¶
18 years ago
When using PHP safe mode and trying to change to a dir that is not accessible due to the safe mode restrictions, the function simply fails without generating any kind of error message.
(Tested in PHP 4.3.10-16, Debian Sarge default)
