Function __global->array_keys

Definitions

sources_custom/phpstub.php

  • Return all the keys of an array.
  • Visibility: public
  • Is abstract?: No
  • Is static?: No
  • Is final?: No
  • Returns: array

Parameters

Name Type Passed by reference? Variadic? Default Set Range Description
$input array No No required parameter N/A N/A Input array
$search_value ?mixed No No Null N/A N/A Only find keys with this value (null: no such filter)

Returns

  • The keys of the array
  • Type: array
  • Set: N/A
  • Range: N/A

Preview

Code (PHP)

/**
 * Return all the keys of an array.
 *
 * @param  array $input Input array
 * @param  ?mixed $search_value Only find keys with this value (null: no such filter)
 * @return array The keys of the array
 */
function array_keys(array $input, $search_value = null) : array