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WordPress

getid3_id3v2::ID3v22iTunesBrokenFrameName( string $frame_name ): string|false

Source
wp-includes/ID3/module.tag.id3v2.php:3810

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

$frame_namestring

Return value

string|false

Performance profile

How much work a call to getid3_id3v2::ID3v22iTunesBrokenFrameName() 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

Touches nothing outside its own arguments.

Scaling
Constant

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

Instructions
6–21

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 22.

Plugin surface
None

Nothing here hands control to plugin code.

Called by
1

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

What one call costs · 1 distinct outcome

One number would be a lie: the work depends on which branch runs. These are every distinct cost getid3_id3v2::ID3v22iTunesBrokenFrameName() can have, taken from its control-flow graph on PHP 8.5.

WhenInstructionsCalls it makes
always6–21none

Across PHP versions

PHPCompiledExecutedBranchesNotes
8.6-dev226–214
8.5226–214
8.4226–21412 fewer instructions than PHP 8.3
8.3346–334
8.2346–334
8.1346–334
7.4346–334

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 · 1

Source code

View on Trac View on GitHub 

	public static function ID3v22iTunesBrokenFrameName($frame_name) {		// iTunes (multiple versions) has been known to write ID3v2.3 style frames		// but use ID3v2.2 frame names, right-padded using either [space] or [null]		// to make them fit in the 4-byte frame name space of the ID3v2.3 frame.		// This function will detect and translate the corrupt frame name into ID3v2.3 standard.		static $ID3v22_iTunes_BrokenFrames = array(			'BUF' => 'RBUF', // Recommended buffer size			'CNT' => 'PCNT', // Play counter			'COM' => 'COMM', // Comments			'CRA' => 'AENC', // Audio encryption			'EQU' => 'EQUA', // Equalisation			'ETC' => 'ETCO', // Event timing codes			'GEO' => 'GEOB', // General encapsulated object			'IPL' => 'IPLS', // Involved people list			'LNK' => 'LINK', // Linked information			'MCI' => 'MCDI', // Music CD identifier			'MLL' => 'MLLT', // MPEG location lookup table			'PIC' => 'APIC', // Attached picture			'POP' => 'POPM', // Popularimeter			'REV' => 'RVRB', // Reverb			'RVA' => 'RVAD', // Relative volume adjustment			'SLT' => 'SYLT', // Synchronised lyric/text			'STC' => 'SYTC', // Synchronised tempo codes			'TAL' => 'TALB', // Album/Movie/Show title			'TBP' => 'TBPM', // BPM (beats per minute)			'TCM' => 'TCOM', // Composer			'TCO' => 'TCON', // Content type			'TCP' => 'TCMP', // Part of a compilation			'TCR' => 'TCOP', // Copyright message			'TDA' => 'TDAT', // Date			'TDY' => 'TDLY', // Playlist delay			'TEN' => 'TENC', // Encoded by			'TFT' => 'TFLT', // File type			'TIM' => 'TIME', // Time			'TKE' => 'TKEY', // Initial key			'TLA' => 'TLAN', // Language(s)			'TLE' => 'TLEN', // Length			'TMT' => 'TMED', // Media type			'TOA' => 'TOPE', // Original artist(s)/performer(s)			'TOF' => 'TOFN', // Original filename			'TOL' => 'TOLY', // Original lyricist(s)/text writer(s)			'TOR' => 'TORY', // Original release year			'TOT' => 'TOAL', // Original album/movie/show title			'TP1' => 'TPE1', // Lead performer(s)/Soloist(s)			'TP2' => 'TPE2', // Band/orchestra/accompaniment			'TP3' => 'TPE3', // Conductor/performer refinement			'TP4' => 'TPE4', // Interpreted, remixed, or otherwise modified by			'TPA' => 'TPOS', // Part of a set			'TPB' => 'TPUB', // Publisher			'TRC' => 'TSRC', // ISRC (international standard recording code)			'TRD' => 'TRDA', // Recording dates			'TRK' => 'TRCK', // Track number/Position in set			'TS2' => 'TSO2', // Album-Artist sort order			'TSA' => 'TSOA', // Album sort order			'TSC' => 'TSOC', // Composer sort order			'TSI' => 'TSIZ', // Size			'TSP' => 'TSOP', // Performer sort order			'TSS' => 'TSSE', // Software/Hardware and settings used for encoding			'TST' => 'TSOT', // Title sort order			'TT1' => 'TIT1', // Content group description			'TT2' => 'TIT2', // Title/songname/content description			'TT3' => 'TIT3', // Subtitle/Description refinement			'TXT' => 'TEXT', // Lyricist/Text writer			'TXX' => 'TXXX', // User defined text information frame			'TYE' => 'TYER', // Year			'UFI' => 'UFID', // Unique file identifier			'ULT' => 'USLT', // Unsynchronised lyric/text transcription			'WAF' => 'WOAF', // Official audio file webpage			'WAR' => 'WOAR', // Official artist/performer webpage			'WAS' => 'WOAS', // Official audio source webpage			'WCM' => 'WCOM', // Commercial information			'WCP' => 'WCOP', // Copyright/Legal information			'WPB' => 'WPUB', // Publishers official webpage			'WXX' => 'WXXX', // User defined URL link frame		);		if (strlen($frame_name) == 4) {			if ((substr($frame_name, 3, 1) == ' ') || (substr($frame_name, 3, 1) == "\x00")) {				if (isset($ID3v22_iTunes_BrokenFrames[substr($frame_name, 0, 3)])) {					return $ID3v22_iTunes_BrokenFrames[substr($frame_name, 0, 3)];				}

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-includes/ID3/module.tag.id3v2.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.
Corrections
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