wp_is_writable( string $path )

Determine if a directory is writable.

Description

This function is used to work around certain ACL issues in PHP primarily affecting Windows Servers.

See also

Parameters

$path

(string) (Required) Path to check for write-ability.

Return

(bool) Whether the path is writable.

Source

File: wp-includes/functions.php 

function wp_is_writable( $path ) {
	if ( 'WIN' === strtoupper( substr( PHP_OS, 0, 3 ) ) ) {
		return win_is_writable( $path );
	} else {
		return @is_writable( $path );
	}
}

Uses

Uses Description
wp-includes/functions.php: win_is_writable()

Workaround for Windows bug in is_writable() function

Used By

Used By Description
wp-admin/includes/class-wp-debug-data.php: WP_Debug_Data::debug_data()

Static function for generating site debug data when required.
wp-includes/class-http.php: WP_Http::request()

Send an HTTP request to a URI.
wp-includes/functions.php: get_temp_dir()

Determine a writable directory for temporary files.

Changelog

Version Description
3.6.0 Introduced.

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Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/functions/wp_is_writable