WP_Scripts::is_delayed_strategy( string|mixed $strategy ): bool
- Since
- 6.3.0
- Source
wp-includes/class-wp-scripts.php:1016
Compatibility
- WordPress
- since 6.3.0
- 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.
Parameters
$strategystring|mixed- The strategy to check.
Return value
bool- True if $strategy is one of the delayed strategies, otherwise false.
Performance profile
How much work a call to WP_Scripts::is_delayed_strategy() 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
- Scaling
- Constant
- Instructions
- 5
- Plugin surface
- None
- Called by
- 2
Touches nothing outside its own arguments.
No loop in the body: the same number of instructions runs whatever you pass in.
Executed per call on PHP 8.5. The body compiles to 5.
Nothing here hands control to plugin code.
2 places in core call this, so the cost is paid more often than your own code shows.
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_Scripts::is_delayed_strategy() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
| always | 5 | none |
Across PHP versions
| PHP | Compiled | Executed | Branches | Notes |
|---|---|---|---|---|
| 8.6-dev | 5 | 5 | 0 | |
| 8.5 | 5 | 5 | 0 | |
| 8.4 | 5 | 5 | 0 | 3 fewer instructions than PHP 8.3 |
| 8.3 | 8 | 8 | 0 | |
| 8.2 | 8 | 8 | 0 | |
| 8.1 | 8 | 8 | 0 | 1 fewer instruction than PHP 7.4 |
| 7.4 | 9 | 9 | 0 |
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.
Used by · 2
- WP_Scripts::add_data()This overrides the add_data method from WP_Dependencies, to support normalizing of $args.
- WP_Scripts::do_item()Processes a script dependency.
Source code
private function is_delayed_strategy( $strategy ): bool { return in_array( $strategy, $this->delayed_strategies, true ); }Changelog
Introduced in 6.3.0. One change between 6.7.7 and 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
$strategy retyped from string to string|mixed.verified against sourceAbout this page
- Parsed data
- Generated from the wordpress-develop 7.1.0 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
- Something wrong on this page? Report it and it gets fixed in the next regeneration.