- var_dump: documentation ( source)
- array_multisort: documentation ( source)
<?php
$mainArray = array(
0 =>array(
"key1" => array(7,4,5),
'key2' => array('cc','aa')
)
);
foreach($mainArray as &$secondArray){
array_multisort($secondArray);
}
var_dump($mainArray);
?>