array_change_key_case

PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8
array_change_key_case - Changes the case of all keys in an array

Example #1 array_change_key_case example

Result: Array ( [FIRST] => 1 [SECOND] => 4 )
<?php
$input_array = array("FirSt" => 1, "SecOnd" => 4);
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PHP Version:


Example #2 of array_change_key_case

<?php
$result = array_change_key_case(array("TesT" => 1, "Array Change Key Case" => 2), CASE_LOWER);
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PHP Version:


Function array_change_key_case:

Arrays Functions

Most used PHP functions