WP_Widget_Tag_Cloud::form( array $instance )
- Since
- 2.8.0
- Source
wp-includes/widgets/class-wp-widget-tag-cloud.php:146
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_Tag_Cloud::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
- Light
- Scaling
- Scales with input
- Instructions
- 66–105
- Plugin surface
- None
- Called by
- 0
Touches nothing outside its own arguments.
The body loops, so the work grows with what you pass in.
Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 169.
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_Tag_Cloud::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 · 6 distinct outcomes
One number would be a lie: the work depends on which branch runs. These are every distinct cost WP_Widget_Tag_Cloud::form() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
| always | 66–69 | ->get_field_id(), _e(), ->get_field_id(), ->get_field_name(), esc_attr(), get_taxonomies(), ->_get_current_taxonomy(), ->get_field_id(), ->get_field_name(), _e() |
| always | 76–80 | ->get_field_id(), _e(), ->get_field_id(), ->get_field_name(), esc_attr(), get_taxonomies(), ->_get_current_taxonomy(), ->get_field_id(), _e(), ->get_field_id(), ->get_field_name() |
| always | 77–80 | ->get_field_id(), _e(), ->get_field_id(), ->get_field_name(), esc_attr(), get_taxonomies(), ->_get_current_taxonomy(), array_keys(), reset(), ->get_field_id(), ->get_field_name(), esc_attr() |
| always | 91–94 | ->get_field_id(), _e(), ->get_field_id(), ->get_field_name(), esc_attr(), get_taxonomies(), ->_get_current_taxonomy(), ->get_field_id(), ->get_field_name(), _e(), ->get_field_id(), ->get_field_name(), checked(), ->get_field_id(), _e() |
| always | 101–105 | ->get_field_id(), _e(), ->get_field_id(), ->get_field_name(), esc_attr(), get_taxonomies(), ->_get_current_taxonomy(), ->get_field_id(), _e(), ->get_field_id(), ->get_field_name(), ->get_field_id(), ->get_field_name(), checked(), ->get_field_id(), _e() |
| always | 102–105 | ->get_field_id(), _e(), ->get_field_id(), ->get_field_name(), esc_attr(), get_taxonomies(), ->_get_current_taxonomy(), array_keys(), reset(), ->get_field_id(), ->get_field_name(), esc_attr(), ->get_field_id(), ->get_field_name(), checked(), ->get_field_id(), _e() |
Across PHP versions
| PHP | Compiled | Executed | Branches | Notes |
|---|---|---|---|---|
| 8.6-dev | 169 | 66–105 | 7 | |
| 8.5 | 169 | 66–105 | 7 | |
| 8.4 | 169 | 66–105 | 7 | |
| 8.3 | 169 | 66–105 | 7 | |
| 8.2 | 169 | 66–105 | 7 | 1 more instruction than PHP 8.1 |
| 8.1 | 168 | 66–105 | 7 | 2 fewer instructions than PHP 7.4 |
| 7.4 | 170 | 66–107 | 7 |
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 · 9
- _e()Displays translated text.
- esc_attr()Escaping for HTML attributes.
- get_taxonomies()Retrieves a list of registered taxonomy names or objects.
- selected()Outputs the HTML selected attribute.
- esc_html()Escaping for HTML blocks.
- checked()Outputs the HTML checked attribute.
- WP_Widget_Tag_Cloud::get_field_id()
- WP_Widget_Tag_Cloud::get_field_name()
- WP_Widget_Tag_Cloud::_get_current_taxonomy()Retrieves the taxonomy for the current Tag cloud widget instance.
Source code
public function form( $instance ) { $title = ! empty( $instance['title'] ) ? $instance['title'] : ''; $count = isset( $instance['count'] ) ? (bool) $instance['count'] : false; ?> <p> <label for="<?php echo $this->get_field_id( 'title' ); ?>"><?php _e( 'Title:' ); ?></label> <input type="text" class="widefat" id="<?php echo $this->get_field_id( 'title' ); ?>" name="<?php echo $this->get_field_name( 'title' ); ?>" value="<?php echo esc_attr( $title ); ?>" /> </p> <?php $taxonomies = get_taxonomies( array( 'show_tagcloud' => true ), 'object' ); $current_taxonomy = $this->_get_current_taxonomy( $instance ); switch ( count( $taxonomies ) ) { // No tag cloud supporting taxonomies found, display error message. case 0: ?> <input type="hidden" id="<?php echo $this->get_field_id( 'taxonomy' ); ?>" name="<?php echo $this->get_field_name( 'taxonomy' ); ?>" value="" /> <p> <?php _e( 'The tag cloud will not be displayed since there are no taxonomies that support the tag cloud widget.' ); ?> </p> <?php break; // Just a single tag cloud supporting taxonomy found, no need to display a select. case 1: $keys = array_keys( $taxonomies ); $taxonomy = reset( $keys ); ?> <input type="hidden" id="<?php echo $this->get_field_id( 'taxonomy' ); ?>" name="<?php echo $this->get_field_name( 'taxonomy' ); ?>" value="<?php echo esc_attr( $taxonomy ); ?>" /> <?php break; // More than one tag cloud supporting taxonomy found, display a select. default: ?> <p> <label for="<?php echo $this->get_field_id( 'taxonomy' ); ?>"><?php _e( 'Taxonomy:' ); ?></label> <select class="widefat" id="<?php echo $this->get_field_id( 'taxonomy' ); ?>" name="<?php echo $this->get_field_name( 'taxonomy' ); ?>"> <?php foreach ( $taxonomies as $taxonomy => $tax ) : ?> <option value="<?php echo esc_attr( $taxonomy ); ?>" <?php selected( $taxonomy, $current_taxonomy ); ?>> <?php echo esc_html( $tax->labels->name ); ?> </option> <?php endforeach; ?> </select> </p> <?php } if ( count( $taxonomies ) > 0 ) { ?> <p> <input type="checkbox" class="checkbox" id="<?php echo $this->get_field_id( 'count' ); ?>" name="<?php echo $this->get_field_name( 'count' ); ?>" <?php checked( $count, true ); ?> /> <label for="<?php echo $this->get_field_id( 'count' ); ?>"><?php _e( 'Show tag counts' ); ?></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 7.1.0 tag, from
src/wp-includes/widgets/class-wp-widget-tag-cloud.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.