WP_Ability::normalize_input( mixed $input = null ): mixed
- Since
- 6.9.0, 7.1.0
- Source
wp-includes/abilities-api/class-wp-ability.php:483
Description
When no input is provided and the input schema is defined with a top-level default key, this method returns the value of that key. If the input schema does not define a default, or if the input schema is empty, this method returns null. If input is provided, it is returned as-is.
The 'wp_ability_normalize_input' filter fires after the built-in default-value handling, allowing plugins to transform the result.
Compatibility
- WordPress
- since 7.1.0
- PHP
- 7.4–8.6-dev
- 6.7.7
- 6.8.8
- 6.9.7
- 7.0.4
- 7.1.0
Present in 3 of the 5 tracked releases, added in 7.1.0, and compiles on PHP 7.4 through 8.6-dev.
Parameters
$inputmixedoptional- The raw input provided for the ability. Default
null.Default:null
Return value
mixed- The normalized input, or a
WP_Errorif a filter returned one.
Performance profile
How much work a call to WP_Ability::normalize_input() 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
- 13–19
- Plugin surface
- 1 hook
- 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 19.
Third-party callbacks on 'wp_ability_normalize_input' run inside this call, and their cost is not bounded by anything here.
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()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_Ability::normalize_input() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
$input !== null | 13 | apply_filters() |
$input === null | 18–19 | ->get_input_schema(), 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: 19 instructions, 13–19 executed per call, 2 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.
Hooks and filters fired · 1
One hook fires while WP_Ability::normalize_input() runs, in this order:
- apply_filters( wp_ability_normalize_input )filterline 508 (+25 into the body)
Filters the normalized input for an ability.
Uses · 2
- apply_filters()Calls the callback functions that have been added to a filter hook.
- WP_Ability::get_input_schema()Retrieves the input schema for the ability.
Used by · 1
- WP_Ability::execute()Executes the ability after input validation and running a permission check.
Source code
public function normalize_input( $input = null ) { if ( null === $input ) { $input_schema = $this->get_input_schema(); if ( array_key_exists( 'default', $input_schema ) ) { $input = $input_schema['default']; } } /** * Filters the normalized input for an ability. * * Fires after `normalize_input()` has applied any default value declared in the input schema, * giving plugins a chance to adjust the input before it is consumed downstream. Common uses * include defaulting beyond what JSON Schema can express, prompt enrichment, and injecting * caller metadata. * * Returning a `WP_Error` causes callers that propagate it (such as `execute()`) to halt * before validation, permission checks, and the registered execute callback. * * @since 7.1.0 * * @param mixed $input The normalized input data. * @param string $ability_name The name of the ability. * @param WP_Ability $ability The ability instance. */ return apply_filters( 'wp_ability_normalize_input', $input, $this->name, $this ); }Changelog
Introduced in 6.9.0. Unchanged from 6.9.7 through 7.1.0.
Signature, return type and hooks compared across 3 parsed releases.
wp_ability_normalize_input filter.from the docblockAbout this page
- Parsed data
- Generated from the wordpress-develop 7.1.0 tag, from
src/wp-includes/abilities-api/class-wp-ability.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.