wp_should_load_block_editor_scripts_and_styles(): bool
- Since
- 5.6.0
- Source
wp-includes/script-loader.php:2659
Compatibility
- WordPress
- since 5.6.0
- 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
bool- Whether scripts and styles should be enqueued.
Performance profile
How much work a call to wp_should_load_block_editor_scripts_and_styles() 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
- 9–12
- Plugin surface
- 1 hook
- 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, depending on the branch taken. The body compiles to 12.
Third-party callbacks on 'should_load_block_editor_scripts_and_styles' run inside this call, and their cost is not bounded by anything here.
2 places in core call this, so the cost is paid more often than your own code shows.
What it touches
- hookthird-party callbacks
apply_filters()called directly
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_should_load_block_editor_scripts_and_styles() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
!($current_screen instanceof) | 9 | apply_filters() |
$current_screen instanceof | 12 | ->is_block_editor(), 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: 12 instructions, 9–12 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_should_load_block_editor_scripts_and_styles() runs, in this order:
- apply_filters( should_load_block_editor_scripts_and_styles )filterline 2672 (+13 into the body)
Filters the flag that decides whether or not block editor scripts and styles are going to be enqueued on the current screen.
Uses · 1
- apply_filters()Calls the callback functions that have been added to a filter hook.
Used by · 2
- wp_common_block_scripts_and_styles()Handles the enqueueing of block scripts and styles that are common to both the editor and the front-end.
- wp_enqueue_registered_block_scripts_and_styles()Enqueues registered block scripts and styles, depending on current rendered context (only enqueuing editor scripts while in context of the editor).
Source code
function wp_should_load_block_editor_scripts_and_styles() { global $current_screen; $is_block_editor_screen = ( $current_screen instanceof WP_Screen ) && $current_screen->is_block_editor(); /** * Filters the flag that decides whether or not block editor scripts and styles * are going to be enqueued on the current screen. * * @since 5.6.0 * * @param bool $is_block_editor_screen Current value of the flag. */ return apply_filters( 'should_load_block_editor_scripts_and_styles', $is_block_editor_screen );}Changelog
Introduced in 5.6.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
About this page
- Parsed data
- Generated from the wordpress-develop 7.0.4 tag, from
src/wp-includes/script-loader.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.