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PclZipUtilRename( $p_src, $p_dest )

Source
wp-admin/includes/class-pclzip.php:5654

Compatibility

WordPress
core
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

$p_src
$p_dest

Performance profile

How much work a call to PclZipUtilRename() 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

Reads or writes the filesystem via rename().

Scaling
Constant

No loop in the body: the same number of instructions runs whatever you pass in.

Instructions
11–25

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 26.

Plugin surface
None

Nothing here hands control to plugin code.

Called by
3

3 places in core call this, so the cost is paid more often than your own code shows.

What it touches

  • filesystemfilesystem accessrename()called directly

What one call costs · 3 distinct outcomes

One number would be a lie: the work depends on which branch runs. These are every distinct cost PclZipUtilRename() can have, taken from its control-flow graph on PHP 8.5.

WhenInstructionsCalls it makes
rename()11rename()
!rename() && !copy()18rename(), copy()
!rename() && copy()24–25rename(), copy(), unlink()

Across PHP versions

Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 26 instructions, 11–25 executed per call, 3 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.

Used by · 3

Source code

View on Trac View on GitHub 

  function PclZipUtilRename($p_src, $p_dest)  {    $v_result = 1;     // ----- Try to rename the files    if (!@rename($p_src, $p_dest)) {       // ----- Try to copy & unlink the src      if (!@copy($p_src, $p_dest)) {        $v_result = 0;      }      else if (!@unlink($p_src)) {        $v_result = 0;      }    }     // ----- Return    return $v_result;  }

Changelog

Unchanged from 6.7.7 through 7.1.0.

  1. 6.7.7
  2. 6.8.8
  3. 6.9.7
  4. 7.0.4
  5. 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-pclzip.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.
Corrections
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