wp_apply_border_support( WP_Block_Type $block_type, array $block_attributes ): array

Compatibility

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

Parameters

$block_typeWP_Block_Type

Block type.

$block_attributesarray

Block attributes.

Return value

array

Border CSS classes and inline styles.

Performance profile

How much work a call to wp_apply_border_support() 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

Touches nothing outside its own arguments.

Scaling

Scales with input

The body loops, so the work grows with what you pass in.

Instructions

42–96

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 175.

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 one call costs · 3 distinct outcomes

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

This body has more branch combinations than are worth enumerating, so the table covers the outcomes found first rather than every one that exists.

Uses · 3

• wp_should_skip_block_supports_serialization()Checks whether serialization of the current block's supported properties should occur.
• wp_has_border_feature_support()Checks whether the current block type supports the border feature requested.
• wp_style_engine_get_styles()Global public interface method to generate styles from a single style object, e.g. the value of a block's attributes.style object or the top level styles in theme.json.

Source code

View on Trac ↗View on GitHub ↗

50function wp_apply_border_support( $block_type, $block_attributes ) {51	if ( wp_should_skip_block_supports_serialization( $block_type, 'border' ) ) {52		return array();53	}54 55	$border_block_styles      = array();56	$has_border_color_support = wp_has_border_feature_support( $block_type, 'color' );57	$has_border_width_support = wp_has_border_feature_support( $block_type, 'width' );58 59	// Border radius.60	if (61		wp_has_border_feature_support( $block_type, 'radius' ) &&62		isset( $block_attributes['style']['border']['radius'] ) &&63		! wp_should_skip_block_supports_serialization( $block_type, '__experimentalBorder', 'radius' )64	) {65		$border_radius = $block_attributes['style']['border']['radius'];66 67		if ( is_numeric( $border_radius ) ) {68			$border_radius .= 'px';69		}70 71		$border_block_styles['radius'] = $border_radius;72	}73 74	// Border style.75	if (76		wp_has_border_feature_support( $block_type, 'style' ) &&77		isset( $block_attributes['style']['border']['style'] ) &&78		! wp_should_skip_block_supports_serialization( $block_type, '__experimentalBorder', 'style' )79	) {80		$border_block_styles['style'] = $block_attributes['style']['border']['style'];81	}82 83	// Border width.84	if (85		$has_border_width_support &&86		isset( $block_attributes['style']['border']['width'] ) &&87		! wp_should_skip_block_supports_serialization( $block_type, '__experimentalBorder', 'width' )88	) {89		$border_width = $block_attributes['style']['border']['width'];90 91		// This check handles original unitless implementation.92		if ( is_numeric( $border_width ) ) {93			$border_width .= 'px';94		}95 96		$border_block_styles['width'] = $border_width;97	}98 99	// Border color.100	if (101		$has_border_color_support &&102		! wp_should_skip_block_supports_serialization( $block_type, '__experimentalBorder', 'color' )103	) {104		$preset_border_color          = array_key_exists( 'borderColor', $block_attributes ) ? "var:preset|color|{$block_attributes['borderColor']}" : null;105		$custom_border_color          = $block_attributes['style']['border']['color'] ?? null;106		$border_block_styles['color'] = $preset_border_color ? $preset_border_color : $custom_border_color;107	}108 109	// Generates styles for individual border sides.110	if ( $has_border_color_support || $has_border_width_support ) {111		foreach ( array( 'top', 'right', 'bottom', 'left' ) as $side ) {112			$border                       = $block_attributes['style']['border'][ $side ] ?? null;113			$border_side_values           = array(114				'width' => isset( $border['width'] ) && ! wp_should_skip_block_supports_serialization( $block_type, '__experimentalBorder', 'width' ) ? $border['width'] : null,115				'color' => isset( $border['color'] ) && ! wp_should_skip_block_supports_serialization( $block_type, '__experimentalBorder', 'color' ) ? $border['color'] : null,116				'style' => isset( $border['style'] ) && ! wp_should_skip_block_supports_serialization( $block_type, '__experimentalBorder', 'style' ) ? $border['style'] : null,117			);118			$border_block_styles[ $side ] = $border_side_values;119		}120	}121 122	// Collect classes and styles.123	$attributes = array();124	$styles     = wp_style_engine_get_styles( array( 'border' => $border_block_styles ) );125 126	if ( ! empty( $styles['classnames'] ) ) {127		$attributes['class'] = $styles['classnames'];128	}129

Changelog

Introduced in 5.8.0. 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 7.1.0 tag, from src/wp-includes/block-supports/border.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.

Corrections

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