WP_Scripts::print_extra_script( string $handle, bool $display = true ): bool|string|void

Compatibility

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

Parameters

$handlestring

The script's registered handle.

$displaybooloptional

Whether to print the extra script instead of just returning it. Default true.Default: true

Return value

bool|string|void

Void if no data exists, extra scripts if $display is true, true otherwise.

Performance profile

How much work a call to WP_Scripts::print_extra_script() 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

9–16

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 18.

Plugin surface

None

Nothing here hands control to plugin code.

Called by

2

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

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

Uses · 2

• wp_print_inline_script_tag()Prints an inline script tag.
• WP_Scripts::get_data()

Used by · 2

• WP_Scripts::do_item()Processes a script dependency.
• WP_Scripts::print_scripts_l10n()Prints extra scripts of a registered script.

Source code

View on Trac ↗View on GitHub ↗

219	public function print_extra_script( $handle, $display = true ) {220		$output = $this->get_data( $handle, 'data' );221		if ( ! $output ) {222			return;223		}224 225		if ( ! $display ) {226			return $output;227		}228 229		wp_print_inline_script_tag( $output, array( 'id' => "{$handle}-js-extra" ) );230 231		return true;232	}

Changelog

Introduced in 3.3.0. One change 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 6.8.8 tag, from src/wp-includes/class-wp-scripts.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.

Corrections

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