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WordPress

WP_Widget_Custom_HTML::add_help_text()

Since
4.9.0
Source
wp-includes/widgets/class-wp-widget-custom-html.php:302
Add help text to widgets admin screen.

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.

Performance profile

How much work a call to WP_Widget_Custom_HTML::add_help_text() 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

Touches nothing outside its own arguments.

Scaling
Constant

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

Instructions
24–73

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 73.

Plugin surface
None

Nothing here hands control to plugin code.

Called by
0

Nothing in core calls this; the cost is only what you spend yourself.

What it touches

  • hookthird-party callbacksapply_filters()one call below WP_Widget_Custom_HTML::add_help_text()

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 · 2 distinct outcomes

One number would be a lie: the work depends on which branch runs. These are every distinct cost WP_Widget_Custom_HTML::add_help_text() can have, taken from its control-flow graph on PHP 8.5.

WhenInstructionsCalls it makes
always24get_current_screen(), __(), wp_get_current_user(), __(), custom_html_widget()
always73get_current_screen(), __(), wp_get_current_user(), __(), get_edit_profile_url(), esc_url(), __(), sprintf(), __(), __(), __(), __(), __(), custom_html_widget()

Across PHP versions

PHPCompiledExecutedBranchesNotes
8.6-dev7324–731
8.57324–731
8.47324–7311 fewer instruction than PHP 8.3
8.37424–741
8.27424–741
8.17424–741
7.47424–741

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 · 5

Source code

	public static function add_help_text() {		$screen = get_current_screen(); 		$content  = '<p>';		$content .= __( 'Use the Custom HTML widget to add arbitrary HTML code to your widget areas.' );		$content .= '</p>'; 		if ( 'false' !== wp_get_current_user()->syntax_highlighting ) {			$content .= '<p>';			$content .= sprintf(				/* translators: 1: Link to user profile, 2: Additional link attributes, 3: Accessibility text. */				__( 'The edit field automatically highlights code syntax. You can disable this in your <a href="%1$s" %2$s>user profile%3$s</a> to work in plain text mode.' ),				esc_url( get_edit_profile_url() ),				'class="external-link" target="_blank"',				sprintf(					'<span class="screen-reader-text"> %s</span>',					/* translators: Hidden accessibility text. */					__( '(opens in a new tab)' )				)			);			$content .= '</p>'; 			$content .= '<p id="editor-keyboard-trap-help-1">' . __( 'When using a keyboard to navigate:' ) . '</p>';			$content .= '<ul>';			$content .= '<li id="editor-keyboard-trap-help-2">' . __( 'In the editing area, the Tab key enters a tab character.' ) . '</li>';			$content .= '<li id="editor-keyboard-trap-help-3">' . __( 'To move away from this area, press the Esc key followed by the Tab key.' ) . '</li>';			$content .= '<li id="editor-keyboard-trap-help-4">' . __( 'Screen reader users: when in forms mode, you may need to press the Esc key twice.' ) . '</li>';			$content .= '</ul>';		} 		$screen->add_help_tab(			array(				'id'      => 'custom_html_widget',				'title'   => __( 'Custom HTML Widget' ),				'content' => $content,			)		);	}

Changelog

Introduced in 4.9.0. 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

Parsed data
Generated from the wordpress-develop 6.9.7 tag, from src/wp-includes/widgets/class-wp-widget-custom-html.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.
Corrections
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