chdir
PHP 4, PHP 5, PHP 7, PHP 8
chdir - Change directory
Manual
chdir(
string$directory ): bool
Changes PHP's current directory to directory.
Parameters
- directory
-
The new current directory
Return Values
Returns true on success or false on failure.
Exceptions and Errors
Throws an error of level E_WARNING on failure.
Notes
Caution:
If the PHP interpreter has been built with ZTS (Zend Thread Safety) enabled, any changes to the current directory made through chdir will be invisible to the operating system. All built-in PHP functions will still respect the change in current directory; but external library functions called using FFI will not. You can tell whether your copy of PHP was built with ZTS enabled using php -i or the built-in constant PHP_ZTS.