- var_dump: documentation ( source)
<?php
$map = array('Yes' => true, 'No' => false);
$input = array('va' => 'No', 'firsttime' => 'Yes', 'name' => 'foobar', 'price' => 123000);
foreach ($input as $key => $value) {
@$input[$key] = $map[$value] ?: $value;
}
var_dump($input);