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Enclosure::embed( $options = '', bool $native = false ): string

Source
wp-includes/SimplePie/src/Enclosure.php:862
Embed the enclosure using Javascript

Description

$options is an array or comma-separated key:value string, with the following properties:

  • alt (string): Alternate content for when an end-user does not have the appropriate handler installed or when a file type is unsupported. Can be any text or HTML. Defaults to blank.
  • altclass (string): If a file type is unsupported, the end-user will see the alt text (above) linked directly to the content. That link will have this value as its class name. Defaults to blank.
  • audio (string): This is an image that should be used as a placeholder for audio files before they're loaded (QuickTime-only).
    Can be any relative or absolute URL. Defaults to blank.
  • bgcolor (string): The background color for the media, if not already transparent. Defaults to #ffffff.
  • height (integer): The height of the embedded media. Accepts any numeric pixel value (such as 360) or auto. Defaults to auto, and it is recommended that you use this default.
  • loop (boolean): Do you want the media to loop when it's done? Defaults to false.
  • mediaplayer (string): The location of the included mediaplayer.swf file. This allows for the playback of Flash Video (.flv) files, and is the default handler for non-Odeo MP3's.
    Defaults to blank.
  • video (string): This is an image that should be used as a placeholder for video files before they're loaded (QuickTime-only).
    Can be any relative or absolute URL. Defaults to blank.
  • width (integer): The width of the embedded media. Accepts any numeric pixel value (such as 480) or auto. Defaults to auto, and it is recommended that you use this default.
  • widescreen (boolean): Is the enclosure widescreen or standard? This applies only to video enclosures, and will automatically resize the content appropriately. Defaults to false, implying 4:3 mode.

Note: Non-widescreen (4:3) mode with width and height set to auto will default to 480x360 video resolution. Widescreen (16:9) mode with width and height set to auto will default to 480x270 video resolution.

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

$optionsoptional
Default: ''
$nativebooloptional
Use <embed>Default: false

Return value

string
HTML string to output

Performance profile

How much work a call to Enclosure::embed() 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
68–115

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 389.

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 one call costs · 6 distinct outcomes

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

WhenInstructionsCalls it makes
!is_array($options)68–99->get_handler(), ->get_real_type(), explode(), explode(), ->get_link()
!is_array($options) && $handler !== "flash"78–96->get_handler(), ->get_real_type(), explode(), explode(), ->get_link(), ->get_extension(), rawurlencode()
!is_array($options) && $mime === "video"81–109->get_handler(), ->get_real_type(), explode(), explode(), round(), ->get_link()
!is_array($options) && $mime === "video" && $handler !== "flash"91–106->get_handler(), ->get_real_type(), explode(), explode(), round(), ->get_link(), ->get_extension(), rawurlencode()
!is_array($options) && $mime === "video" && $mime !== "audio"94–115->get_handler(), ->get_real_type(), explode(), explode(), round(), round(), ->get_link()
!is_array($options) && $mime === "video" && $mime !== "audio" && $handler !== "flash"104–112->get_handler(), ->get_real_type(), explode(), explode(), round(), round(), ->get_link(), ->get_extension(), rawurlencode()

This body has more branch combinations than are worth enumerating, so the table covers the outcomes found first rather than every one that exists.

Across PHP versions

PHPCompiledExecutedBranchesNotes
8.6-dev38968–11545
8.538968–11545
8.438968–1154510 fewer instructions than PHP 8.3
8.339968–11745
8.239968–117451 more instruction than PHP 8.1
8.139868–11745
7.439868–11745

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

  • \SimplePie\Enclosure::get_handler()
  • \SimplePie\Enclosure::get_real_type()
  • \SimplePie\Enclosure::get_link()
  • \SimplePie\Enclosure::get_extension()

Source code

    public function embed($options = '', bool $native = false)    {        // Set up defaults        $audio = '';        $video = '';        $alt = '';        $altclass = '';        $loop = 'false';        $width = 'auto';        $height = 'auto';        $bgcolor = '#ffffff';        $mediaplayer = '';        $widescreen = false;        $handler = $this->get_handler();        $type = $this->get_real_type();        $placeholder = '';         // Process options and reassign values as necessary        if (is_array($options)) {            extract($options);        } else {            $options = explode(',', $options);            foreach ($options as $option) {                $opt = explode(':', $option, 2);                if (isset($opt[0], $opt[1])) {                    $opt[0] = trim($opt[0]);                    $opt[1] = trim($opt[1]);                    switch ($opt[0]) {                        case 'audio':                            $audio = $opt[1];                            break;                         case 'video':                            $video = $opt[1];                            break;                         case 'alt':                            $alt = $opt[1];                            break;                         case 'altclass':                            $altclass = $opt[1];                            break;                         case 'loop':                            $loop = $opt[1];                            break;                         case 'width':                            $width = $opt[1];                            break;                         case 'height':                            $height = $opt[1];                            break;                         case 'bgcolor':                            $bgcolor = $opt[1];                            break;                         case 'mediaplayer':                            $mediaplayer = $opt[1];                            break;                         case 'widescreen':                            $widescreen = $opt[1];                            break;                    }                }            }        }         $mime = explode('/', (string) $type, 2);        $mime = $mime[0];         // Process values for 'auto'        if ($width === 'auto') {            if ($mime === 'video') {                if ($height === 'auto') {                    $width = 480;

Changelog

One change between 6.7.7 and 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.

6.9.7
Parameter $options retyped from array|string to untyped.verified against source

About this page

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Generated from the wordpress-develop 7.1.0 tag, from src/wp-includes/SimplePie/src/Enclosure.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.
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