WP_Filesystem_Direct::mkdir( string $path, int|false $chmod = false, string|int|false $chown = false, string|int|false $chgrp = false ): bool
- Since
- 2.5.0
- Source
wp-admin/includes/class-wp-filesystem-direct.php:574
Compatibility
- WordPress
- since 2.5.0
- PHP
- 7.4–8.6-dev
- 6.7.7
- 6.8.8
- 6.9.7
- 7.0.4
- 7.1.0
Present in every tracked release (6.7.7 to 7.1.0), and compiles on PHP 7.4 through 8.6-dev.
Parameters
$pathstring- Path for new directory.
$chmodint|falseoptional- The permissions as octal number (or false to skip chmod).
Default false.Default:false $chownstring|int|falseoptional- A user name or number (or false to skip chown).
Default false.Default:false $chgrpstring|int|falseoptional- A group name or number (or false to skip chgrp).
Default false.Default:false
Return value
bool- True on success, false on failure.
Performance profile
How much work a call to WP_Filesystem_Direct::mkdir() does, and what it touches: the algorithmic scaling, the Zend instruction count per call across PHP versions, the hooks it hands control to, and the core code that calls it. Measured from the compiled opcodes, not a stopwatch, so every number is identical on any machine running the same PHP version, and every function in core is ranked by cost.
- Cost class
- Heavy
- Scaling
- Constant
- Instructions
- 11–34
- Plugin surface
- None
- Called by
- 0
Reads or writes the filesystem via mkdir().
No loop in the body: the same number of instructions runs whatever you pass in.
Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 36.
Nothing here hands control to plugin code.
Nothing in core calls this; the cost is only what you spend yourself.
What it touches
- filesystemfilesystem access
mkdir()called directly
What one call costs · 6 distinct outcomes
One number would be a lie: the work depends on which branch runs. These are every distinct cost WP_Filesystem_Direct::mkdir() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
empty($path) | 11 | untrailingslashit() |
!empty($path) && !mkdir() | 18–20 | untrailingslashit(), mkdir() |
!empty($path) && mkdir() | 24–26 | untrailingslashit(), mkdir(), ->chmod() |
!empty($path) && mkdir() | 28–30 | untrailingslashit(), mkdir(), ->chmod(), ->chgrp() |
!empty($path) && mkdir() | 28–30 | untrailingslashit(), mkdir(), ->chmod(), ->chown() |
!empty($path) && mkdir() | 32–34 | untrailingslashit(), mkdir(), ->chmod(), ->chown(), ->chgrp() |
Across PHP versions
Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 36 instructions, 11–34 executed per call, 5 branches. The work does not change between versions.
An instruction is not a fixed amount of time, so a matching count is not necessarily the same speed; what it rules out is a difference in the work itself.
Uses · 4
- untrailingslashit()Removes trailing forward slashes and backslashes if they exist.
- WP_Filesystem_Direct::chmod()Changes filesystem permissions.
- WP_Filesystem_Direct::chown()Changes the owner of a file or directory.
- WP_Filesystem_Direct::chgrp()Changes the file group.
Source code
public function mkdir( $path, $chmod = false, $chown = false, $chgrp = false ) { // Safe mode fails with a trailing slash under certain PHP versions. $path = untrailingslashit( $path ); if ( empty( $path ) ) { return false; } if ( ! $chmod ) { $chmod = FS_CHMOD_DIR; } if ( ! @mkdir( $path ) ) { return false; } $this->chmod( $path, $chmod ); if ( $chown ) { $this->chown( $path, $chown ); } if ( $chgrp ) { $this->chgrp( $path, $chgrp ); } return true; }Changelog
Introduced in 2.5.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
About this page
- Parsed data
- Generated from the wordpress-develop 7.1.0 tag, from
src/wp-admin/includes/class-wp-filesystem-direct.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it. - Corrections
- Something wrong on this page? Report it and it gets fixed in the next regeneration.