get_temp_dir()
Gets the path to the folder where temporary files can be written. With a slash at the end.
The temporary files folder is selected in the following order (the first folder for which there is write permission is returned):
- Constant WP_TEMP_DIR. If this constant defines the path to the temporary folder, it will be used. By default, this constant is not defined in WP. The constant should be defined in the wp-config.php file.
- PHP function sys_get_temp_dir() - returns the path to the temporary folder on the server.
- PHP option ini_get('upload_tmp_dir') - contains the path to the temporary folder on the server.
- Constant WP_CONTENT_DIR - contains the path to the WP content folder.
- /tmp/ - hardcoded path to the folder on the server.
Each folder is first checked for the ability to write a file to it, through wp_is_writable().
To create a temporary file in the temporary folder, use wp_tempnam()
1 time — 0.00001 sec (speed of light) | 50000 times — 0.03 sec (speed of light) | PHP 7.1.11, WP 4.9.5
No Hooks.
Returns
String
. The path to the writable temporary folder on the server.
Usage
$temp_dir = get_temp_dir();
Examples
#1 Get the path of the temporary folder
echo get_temp_dir(); // /server/tmp/
#2 Create directory my_test in the temporary directory, if it does not already exist
$my_tmp_dir = get_temp_dir() . '/my_test'; if( ! is_dir($my_tmp_dir) ){ mkdir( $my_tmp_dir ); }
get_temp_dir() get temp dir code WP-CLI 2.8.0-alpha
function get_temp_dir() { static $temp = ''; if ( $temp ) { return $temp; } // `sys_get_temp_dir()` introduced PHP 5.2.1. Will always return something. $temp = trailingslashit( sys_get_temp_dir() ); if ( ! is_writable( $temp ) ) { WP_CLI::warning( "Temp directory isn't writable: {$temp}" ); } return $temp; }