get_lastpostdate( string $timezone = 'server', string $post_type = 'any' ): string

Description

Compatibility

Present in every tracked release (6.7.7 to 7.1.0), and compiles on PHP 7.4 through 8.6-dev.

Parameters

$timezonestringoptional

The timezone for the timestamp. Accepts 'server', 'blog', or 'gmt'.
'server' uses the server's internal timezone.
'blog' uses the post_date field, which proxies to the timezone set for the site.
'gmt' uses the post_date_gmt field.
Default 'server'.Default: 'server'

$post_typestringoptional

The post type to check. Default 'any'.Default: 'any'

Return value

string

The date of the last post, or false on failure.

Performance profile

How much work a call to get_lastpostdate() 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

Light

Only touches the object cache, via wp_cache_get().

Scaling

Constant

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

Instructions

15

Executed per call on PHP 8.5. The body compiles to 15.

Plugin surface

1 hook

Third-party callbacks on 'get_lastpostdate' run inside this call, and their cost is not bounded by anything here.

Called by

1

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

What it touches

• hookthird-party callbacksapply_filters()called directly
• cacheobject cachewp_cache_get()one call below get_lastpostdate()

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 get_lastpostdate() can have, taken from its control-flow graph on PHP 8.5.

Hooks and filters fired · 1

One hook fires while get_lastpostdate() runs, in this order:

1. 1
   apply_filters( get_lastpostdate )filterline 7557 (+15 into the body)

   Filters the most recent time that a post on the site was published.

Uses · 2

• _get_last_post_time()Gets the timestamp of the last time any post was modified or published.
• apply_filters()Calls the callback functions that have been added to a filter hook.

Used by · 1

• get_lastpostmodified()Gets the most recent time that a post on the site was modified.

Source code

View on Trac ↗View on GitHub ↗

7542function get_lastpostdate( $timezone = 'server', $post_type = 'any' ) {7543	$lastpostdate = _get_last_post_time( $timezone, 'date', $post_type );7544 7545	/**7546	 * Filters the most recent time that a post on the site was published.7547	 *7548	 * @since 2.3.07549	 * @since 5.5.0 Added the `$post_type` parameter.7550	 *7551	 * @param string|false $lastpostdate The most recent time that a post was published,7552	 *                                   in 'Y-m-d H:i:s' format. False on failure.7553	 * @param string       $timezone     Location to use for getting the post published date.7554	 *                                   See get_lastpostdate() for accepted `$timezone` values.7555	 * @param string       $post_type    The post type to check.7556	 */7557	return apply_filters( 'get_lastpostdate', $lastpostdate, $timezone, $post_type );7558}

Changelog

Introduced in 0.71. 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

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