array_keys
array_keys — Return all the keys or a subset of the keys of an array.Description
array_keys( array $array, ): array
Description
array_keys( array $array,array_keys() returns the keys, numeric and string, from the array.
mixed $search_value,
bool $strict = false ): array
If a search_value is specified, then only the keys for that value are returned. Otherwise, all the keys from the array are returned.
Parameters
Parameters
array
An array containing keys to return.
search_value
If specified, then only keys containing these values are returned.
strict
Determines if strict comparison (===) should be used during the search.
Return Values
Returns an array of all the keys in array.More information about array_keys on official PHP documentation site
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array_keys - New snippets
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PHP 8.0 / MySQL 5.7 array_map abs array_keys min
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