Core Function
View Source on Trac ↗ array_find_key()
array_find_key( array $array, callable $callback ) Polyfill for `array_find_key()` function added in PHP 8.4.
Parameters 2 required
| Name / Type | Description |
|---|---|
| $array array | The array to search. Required |
| $callback callable | The callback to run for each element. Required |
Return Value
((int)
| string | null) The first key in the array that passes the `$callback`, otherwise null.
Function Information
Since Version
6.8.0
Source File
wp-includes/compat.php
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