WP_Widget_Recent_Posts::form( array $instance )
- Since
- 2.8.0
- Source
wp-includes/widgets/class-wp-widget-recent-posts.php:163
Compatibility
- WordPress
- since 2.8.0
- 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
$instancearray- Current settings.
Performance profile
How much work a call to WP_Widget_Recent_Posts::form() does, and what it touches: the algorithmic scaling, the Zend instruction count per call across PHP versions, the hooks it hands control to, and the core code that calls it. Measured from the compiled opcodes, not a stopwatch, so every number is identical on any machine running the same PHP version, and every function in core is ranked by cost.
- Cost class
- Trivial
- Scaling
- Constant
- Instructions
- 80–94
- Plugin surface
- None
- Called by
- 0
Touches nothing outside its own arguments.
No loop in the body: the same number of instructions runs whatever you pass in.
Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 97.
Nothing here hands control to plugin code.
Nothing in core calls this; the cost is only what you spend yourself.
What it touches
- hookthird-party callbacks
apply_filters()one call below WP_Widget_Recent_Posts::form()
Further down the call graph this can also reach option, cache, serialize, query and transient. Those are the worst case, several calls deep and usually down an error path, not what a normal call pays.
What one call costs · 4 distinct outcomes
One number would be a lie: the work depends on which branch runs. These are every distinct cost WP_Widget_Recent_Posts::form() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
!isset($instance) | 80–82 | ->get_field_id(), _e(), ->get_field_id(), ->get_field_name(), ->get_field_id(), _e(), ->get_field_id(), ->get_field_name(), checked(), ->get_field_id(), ->get_field_name(), ->get_field_id(), _e() |
| always | 86–88 | absint(), ->get_field_id(), _e(), ->get_field_id(), ->get_field_name(), ->get_field_id(), _e(), ->get_field_id(), ->get_field_name(), checked(), ->get_field_id(), ->get_field_name(), ->get_field_id(), _e() |
| always | 86–88 | esc_attr(), ->get_field_id(), _e(), ->get_field_id(), ->get_field_name(), ->get_field_id(), _e(), ->get_field_id(), ->get_field_name(), checked(), ->get_field_id(), ->get_field_name(), ->get_field_id(), _e() |
isset($instance) | 92–94 | esc_attr(), absint(), ->get_field_id(), _e(), ->get_field_id(), ->get_field_name(), ->get_field_id(), _e(), ->get_field_id(), ->get_field_name(), checked(), ->get_field_id(), ->get_field_name(), ->get_field_id(), _e() |
Across PHP versions
| PHP | Compiled | Executed | Branches | Notes |
|---|---|---|---|---|
| 8.6-dev | 95 | 80–92 | 3 | 2 fewer instructions than PHP 8.5 |
| 8.5 | 97 | 80–94 | 3 | |
| 8.4 | 97 | 80–94 | 3 | |
| 8.3 | 97 | 80–94 | 3 | |
| 8.2 | 97 | 80–94 | 3 | |
| 8.1 | 97 | 80–94 | 3 | 1 fewer instruction than PHP 7.4 |
| 7.4 | 98 | 80–95 | 3 |
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 · 6
- esc_attr()Escaping for HTML attributes.
- absint()Converts a value to non-negative integer.
- _e()Displays translated text.
- checked()Outputs the HTML checked attribute.
- WP_Widget_Recent_Posts::get_field_id()
- WP_Widget_Recent_Posts::get_field_name()
Source code
public function form( $instance ) { $title = isset( $instance['title'] ) ? esc_attr( $instance['title'] ) : ''; $number = isset( $instance['number'] ) ? absint( $instance['number'] ) : 5; $show_date = isset( $instance['show_date'] ) ? (bool) $instance['show_date'] : false; ?> <p> <label for="<?php echo $this->get_field_id( 'title' ); ?>"><?php _e( 'Title:' ); ?></label> <input class="widefat" id="<?php echo $this->get_field_id( 'title' ); ?>" name="<?php echo $this->get_field_name( 'title' ); ?>" type="text" value="<?php echo $title; ?>" /> </p> <p> <label for="<?php echo $this->get_field_id( 'number' ); ?>"><?php _e( 'Number of posts to show:' ); ?></label> <input class="tiny-text" id="<?php echo $this->get_field_id( 'number' ); ?>" name="<?php echo $this->get_field_name( 'number' ); ?>" type="number" step="1" min="1" value="<?php echo $number; ?>" size="3" /> </p> <p> <input class="checkbox" type="checkbox"<?php checked( $show_date ); ?> id="<?php echo $this->get_field_id( 'show_date' ); ?>" name="<?php echo $this->get_field_name( 'show_date' ); ?>" /> <label for="<?php echo $this->get_field_id( 'show_date' ); ?>"><?php _e( 'Display post date?' ); ?></label> </p> <?php }Changelog
Introduced in 2.8.0. 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 6.8.8 tag, from
src/wp-includes/widgets/class-wp-widget-recent-posts.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.