wppaste
WordPress

PclZip::duplicate( $p_archive )

Source
wp-admin/includes/class-pclzip.php:1166

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_archive

Performance profile

How much work a call to PclZip::duplicate() 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
Trivial

Reads or writes the filesystem via is_file().

Scaling
Constant

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

Instructions
12–20

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 39.

Plugin surface
None

Nothing here hands control to plugin code.

Called by
0

Nothing in core calls this; the cost is only what you spend yourself.

What it touches

  • filesystemfilesystem accessis_file()called directly

What one call costs · 4 distinct outcomes

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

WhenInstructionsCalls it makes
$p_archive instanceof12->privErrorReset(), ->privDuplicate()
!($p_archive instanceof) && !is_string($p_archive)14->privErrorReset(), ::PclZip()
!($p_archive instanceof) && is_string($p_archive) && is_file()16->privErrorReset(), is_file(), ->privDuplicate()
!($p_archive instanceof) && is_string($p_archive) && !is_file()20->privErrorReset(), is_file(), ::PclZip()

Across PHP versions

Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 39 instructions, 12–20 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.

Uses · 3

Source code

View on Trac View on GitHub 

  function duplicate($p_archive)  {    $v_result = 1;     // ----- Reset the error handler    $this->privErrorReset();     // ----- Look if the $p_archive is an instantiated PclZip object    if ($p_archive instanceof pclzip)    {       // ----- Duplicate the archive      $v_result = $this->privDuplicate($p_archive->zipname);    }     // ----- Look if the $p_archive is a string (so a filename)    else if (is_string($p_archive))    {       // ----- Check that $p_archive is a valid zip file      // TBC : Should also check the archive format      if (!is_file($p_archive)) {        // ----- Error log        PclZip::privErrorLog(PCLZIP_ERR_MISSING_FILE, "No file with filename '".$p_archive."'");        $v_result = PCLZIP_ERR_MISSING_FILE;      }      else {        // ----- Duplicate the archive        $v_result = $this->privDuplicate($p_archive);      }    }     // ----- Invalid variable    else    {      // ----- Error log      PclZip::privErrorLog(PCLZIP_ERR_INVALID_PARAMETER, "Invalid variable type p_archive_to_add");      $v_result = PCLZIP_ERR_INVALID_PARAMETER;    }     // ----- 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
Something wrong on this page? Report it and it gets fixed in the next regeneration.