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WP_Sitemaps_Stylesheet::get_stylesheet_css(): string

Since
5.5.0
Source
wp-includes/sitemaps/class-wp-sitemaps-stylesheet.php:260
Gets the CSS to be included in sitemap XSL stylesheets.

Compatibility

WordPress
since 5.5.0
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.

Return value

string
The CSS.

Performance profile

How much work a call to WP_Sitemaps_Stylesheet::get_stylesheet_css() 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
13–14

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 15.

Plugin surface
1 hook

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

Called by
2

2 places in core call this, so the cost is paid more often than your own code shows.

What it touches

  • hookthird-party callbacksapply_filters()called directly

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 WP_Sitemaps_Stylesheet::get_stylesheet_css() can have, taken from its control-flow graph on PHP 8.5.

WhenInstructionsCalls it makes
always13–14is_rtl(), apply_filters()

Across PHP versions

Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 15 instructions, 13–14 executed per call, 1 branch. The work does not change between versions.

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.

Hooks and filters fired · 1

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

  1. apply_filters( wp_sitemaps_stylesheet_css )filterline 316 (+56 into the body)

    Filters the CSS only for the sitemap stylesheet.

Uses · 2

  • is_rtl()Determines whether the current locale is right-to-left (RTL).
  • apply_filters()Calls the callback functions that have been added to a filter hook.

Used by · 2

Source code

View on Trac View on GitHub 

	public function get_stylesheet_css() {		$text_align = is_rtl() ? 'right' : 'left'; 		$css = <<<EOF 					body {						font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;						color: #444;					} 					#sitemap {						max-width: 980px;						margin: 0 auto;					} 					#sitemap__table {						width: 100%;						border: solid 1px #ccc;						border-collapse: collapse;					} 			 		#sitemap__table tr td.loc {						/*						 * URLs should always be LTR.						 * See https://core.trac.wordpress.org/ticket/16834						 * and https://core.trac.wordpress.org/ticket/49949						 */						direction: ltr;					} 					#sitemap__table tr th {						text-align: {$text_align};					} 					#sitemap__table tr td,					#sitemap__table tr th {						padding: 10px;					} 					#sitemap__table tr:nth-child(odd) td {						background-color: #eee;					} 					a:hover {						text-decoration: none;					} EOF; 		/**		 * Filters the CSS only for the sitemap stylesheet.		 *		 * @since 5.5.0		 *		 * @param string $css CSS to be applied to default XSL file.		 */		return apply_filters( 'wp_sitemaps_stylesheet_css', $css );	}

Changelog

Introduced in 5.5.0. 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/sitemaps/class-wp-sitemaps-stylesheet.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.
Corrections
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