twentysixteen_excerpt( string $css_class = 'entry-summary' )
- Since
- Twenty Sixteen 1.0
- Source
wp-content/themes/twentysixteen/inc/template-tags.php:181
Description
Wraps the excerpt in a div element.
Create your own twentysixteen_excerpt() function to override in a child theme.
Compatibility
- WordPress
- since Twenty Sixteen 1.0
- 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
$css_classstringoptional- Class string of the div element. Defaults to 'entry-summary'.Default:
'entry-summary'
Performance profile
How much work a call to twentysixteen_excerpt() 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
- Heavy
- Scaling
- Constant
- Instructions
- 12–20
- Plugin surface
- None
- Called by
- 0
Reaches the database via get_post().
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 20.
Nothing here hands control to plugin code.
Nothing in core calls this; the cost is only what you spend yourself.
What it touches
- hookthird-party callbacks
apply_filters()one call below twentysixteen_excerpt() - querycontent query
get_post()one call below twentysixteen_excerpt()
Further down the call graph this can also reach option, cache, serialize and transient. Those are the worst case, several calls deep and usually down an error path, not what a normal call pays.
What one call costs · 3 distinct outcomes
One number would be a lie: the work depends on which branch runs. These are every distinct cost twentysixteen_excerpt() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
!has_excerpt() && !is_search() | 12 | esc_attr(), has_excerpt(), is_search() |
has_excerpt() | 17 | esc_attr(), has_excerpt(), the_excerpt() |
!has_excerpt() && is_search() | 20 | esc_attr(), has_excerpt(), is_search(), the_excerpt() |
Across PHP versions
Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 20 instructions, 12–20 executed per call, 2 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 · 4
- esc_attr()Escaping for HTML attributes.
- has_excerpt()Determines whether the post has a custom excerpt.
- is_search()Determines whether the query is for a search.
- the_excerpt()Displays the post excerpt.
Source code
function twentysixteen_excerpt( $css_class = 'entry-summary' ) { $css_class = esc_attr( $css_class ); if ( has_excerpt() || is_search() ) : ?> <div class="<?php echo $css_class; ?>"> <?php the_excerpt(); ?> </div><!-- .<?php echo $css_class; ?> --> <?php endif; }Changelog
Introduced in Twenty Sixteen 1.0. 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 7.1.0 tag, from
src/wp-content/themes/twentysixteen/inc/template-tags.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.