wp_get_media_creation_timestamp( array $metadata ): int|false
- Since
- 4.9.0
- Source
wp-admin/includes/media.php:3775
Description
The getID3 library doesn't have a standard method for getting creation dates, so the location of this data can vary based on the MIME type.
Compatibility
- WordPress
- since 4.9.0
- 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
$metadataarray- The metadata returned by getID3::analyze().
Return value
int|false- A UNIX timestamp for the media's creation date if available or a boolean FALSE if a timestamp could not be determined.
Performance profile
How much work a call to wp_get_media_creation_timestamp() does, and what it touches: the algorithmic scaling, the Zend instruction count per call across PHP versions, the hooks it hands control to, and the core code that calls it. Measured from the compiled opcodes, not a stopwatch, so every number is identical on any machine running the same PHP version, and every function in core is ranked by cost.
- Cost class
- Trivial
- Scaling
- Constant
- Instructions
- 5–30
- Plugin surface
- None
- Called by
- 2
Touches nothing outside its own arguments.
No loop in the body: the same number of instructions runs whatever you pass in.
Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 65.
Nothing here hands control to plugin code.
2 places in core call this, so the cost is paid more often than your own code shows.
What one call costs · 2 distinct outcomes
One number would be a lie: the work depends on which branch runs. These are every distinct cost wp_get_media_creation_timestamp() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
| always | 5–30 | none |
!empty($metadata) && isset($value) | 21–27 | strtotime() |
Across PHP versions
| PHP | Compiled | Executed | Branches | Notes |
|---|---|---|---|---|
| 8.6-dev | 65 | 5–30 | 11 | |
| 8.5 | 65 | 5–30 | 11 | |
| 8.4 | 65 | 5–30 | 11 | |
| 8.3 | 65 | 5–30 | 11 | |
| 8.2 | 65 | 5–30 | 11 | 1 more instruction than PHP 8.1 |
| 8.1 | 64 | 5–30 | 11 | |
| 7.4 | 64 | 5–30 | 11 |
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 · 2
- wp_read_audio_metadata()Retrieves metadata from an audio file's ID3 tags.
- wp_read_video_metadata()Retrieves metadata from a video file's ID3 tags.
Source code
function wp_get_media_creation_timestamp( $metadata ) { $creation_date = false; if ( empty( $metadata['fileformat'] ) ) { return $creation_date; } switch ( $metadata['fileformat'] ) { case 'asf': if ( isset( $metadata['asf']['file_properties_object']['creation_date_unix'] ) ) { $creation_date = (int) $metadata['asf']['file_properties_object']['creation_date_unix']; } break; case 'matroska': case 'webm': if ( isset( $metadata['matroska']['comments']['creation_time'][0] ) ) { $creation_date = strtotime( $metadata['matroska']['comments']['creation_time'][0] ); } elseif ( isset( $metadata['matroska']['info'][0]['DateUTC_unix'] ) ) { $creation_date = (int) $metadata['matroska']['info'][0]['DateUTC_unix']; } break; case 'quicktime': case 'mp4': if ( isset( $metadata['quicktime']['moov']['subatoms'][0]['creation_time_unix'] ) ) { $creation_date = (int) $metadata['quicktime']['moov']['subatoms'][0]['creation_time_unix']; } break; } return $creation_date;}Changelog
Introduced in 4.9.0. 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 6.9.7 tag, from
src/wp-admin/includes/media.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.