filter_block_core_template_part_attributes( string $attribute_value, string $attribute_name, array[]|string $allowed_html ): string
- Since
- 6.5.5
- Source
wp-includes/blocks.php:2226
tagName attribute.Compatibility
- WordPress
- since 6.5.5
- 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
$attribute_valuestring- The attribute value to filter.
$attribute_namestring- The attribute name.
$allowed_htmlarray[]|string- An array of allowed HTML elements and attributes, or a context name such as 'post'. See wp_kses_allowed_html() for the list of accepted context names.
Return value
string- The sanitized attribute value.
Performance profile
How much work a call to filter_block_core_template_part_attributes() does, and what it touches: the algorithmic scaling, the Zend instruction count per call across PHP versions, the hooks it hands control to, and the core code that calls it. Measured from the compiled opcodes, not a stopwatch, so every number is identical on any machine running the same PHP version, and every function in core is ranked by cost.
- Cost class
- Trivial
- Scaling
- Constant
- Instructions
- 6–16
- Plugin surface
- None
- Called by
- 1
Touches nothing outside its own arguments.
No loop in the body: the same number of instructions runs whatever you pass in.
Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 18.
Nothing here hands control to plugin code.
1 place in core call this, so the cost is paid more often than your own code shows.
What it touches
- hookthird-party callbacks
apply_filters()one call below filter_block_core_template_part_attributes()
What one call costs · 2 distinct outcomes
One number would be a lie: the work depends on which branch runs. These are every distinct cost filter_block_core_template_part_attributes() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
| always | 6–12 | none |
!empty($attribute_value) && $attribute_name === "tagName" && !is_array($allowed_html) | 16 | wp_kses_allowed_html() |
Across PHP versions
Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 18 instructions, 6–16 executed per call, 4 branches. 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
- wp_kses_allowed_html()Returns an array of allowed HTML tags and attributes for a given context.
Used by · 1
- filter_block_kses_value()Filters and sanitizes a parsed block attribute value to remove non-allowable HTML.
Source code
function filter_block_core_template_part_attributes( $attribute_value, $attribute_name, $allowed_html ) { if ( empty( $attribute_value ) || 'tagName' !== $attribute_name ) { return $attribute_value; } if ( ! is_array( $allowed_html ) ) { $allowed_html = wp_kses_allowed_html( $allowed_html ); } return isset( $allowed_html[ $attribute_value ] ) ? $attribute_value : '';}Changelog
Introduced in 6.5.5. 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 7.1.0 tag, from
src/wp-includes/blocks.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it. - Corrections
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