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WordPress

twentyeleven_admin_header_style()

Since
Twenty Eleven 1.0
Source
wp-content/themes/twentyeleven/functions.php:372
Styles the header image displayed on the Appearance > Header admin panel.

Description

Referenced via add_theme_support('custom-header') in twentyeleven_setup().

Compatibility

WordPress
since Twenty Eleven 1.0
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 twentyeleven_admin_header_style() 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
8–13

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 13.

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 · 2 distinct outcomes

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

WhenInstructionsCalls it makes
always8get_header_textcolor()
always13get_header_textcolor(), get_header_textcolor()

Across PHP versions

Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 13 instructions, 8–13 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.

Uses · 1

Source code

	function twentyeleven_admin_header_style() {		?>	<style id="twentyeleven-admin-header-css">	.appearance_page_custom-header #headimg {		border: none;	}	#headimg h1,	#desc {		font-family: "Helvetica Neue", Arial, Helvetica, "Nimbus Sans L", sans-serif;	}	#headimg h1 {		margin: 0;	}	#headimg h1 a {		font-size: 32px;		line-height: 36px;		text-decoration: none;	}	#desc {		font-size: 14px;		line-height: 23px;		padding: 0 0 3em;	}		<?php		// If the user has set a custom color for the text, use that.		if ( get_header_textcolor() !== HEADER_TEXTCOLOR ) :			?>	#site-title a,	#site-description {		color: #<?php echo get_header_textcolor(); ?>;	}	<?php endif; ?>	#headimg img {		max-width: 1000px;		height: auto;		width: 100%;	}	</style>		<?php	}

Changelog

Introduced in Twenty Eleven 1.0. 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-content/themes/twentyeleven/functions.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.
Corrections
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