twentyeleven_layout_classes( string[] $existing_classes ): string[]

Compatibility

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

Parameters

$existing_classesstring[]

An array of existing body classes.

Return value

string[]

The filtered array of body classes.

Performance profile

How much work a call to twentyeleven_layout_classes() 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

Moderate

Reads stored settings via get_option(), cached per request but not free on a cold cache.

Scaling

Constant

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

Instructions

24–27

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 33.

Plugin surface

1 hook

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

Called by

0

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

What it touches

• hookthird-party callbacksapply_filters()called directly
• optionoption read or writeget_option()one call below twentyeleven_layout_classes()

Further down the call graph this can also reach 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 · 1 distinct outcome

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

Hooks and filters fired · 1

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

1. 1
   apply_filters( twentyeleven_layout_classes )filterline 532 (+26 into the body)

   Filters the Twenty Eleven layout body classes.

Uses · 2

• twentyeleven_get_theme_options()Returns the options array for Twenty Eleven.
• apply_filters()Calls the callback functions that have been added to a filter hook.

Source code

View on Trac ↗View on GitHub ↗

506function twentyeleven_layout_classes( $existing_classes ) {507	$options        = twentyeleven_get_theme_options();508	$current_layout = $options['theme_layout'];509 510	if ( in_array( $current_layout, array( 'content-sidebar', 'sidebar-content' ), true ) ) {511		$classes = array( 'two-column' );512	} else {513		$classes = array( 'one-column' );514	}515 516	if ( 'content-sidebar' === $current_layout ) {517		$classes[] = 'right-sidebar';518	} elseif ( 'sidebar-content' === $current_layout ) {519		$classes[] = 'left-sidebar';520	} else {521		$classes[] = $current_layout;522	}523 524	/**525	 * Filters the Twenty Eleven layout body classes.526	 *527	 * @since Twenty Eleven 1.0528	 *529	 * @param string[] $classes        An array of body classes.530	 * @param string   $current_layout The current theme layout.531	 */532	$classes = apply_filters( 'twentyeleven_layout_classes', $classes, $current_layout );533 534	return array_merge( $existing_classes, $classes );535}

Changelog

Introduced in Twenty Eleven 1.0. 2 changes between 6.7.7 and 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 7.1.0 tag, from src/wp-content/themes/twentyeleven/inc/theme-options.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.