- array_push: documentation ( source)
- var_export: documentation ( source)
- array_keys: documentation ( source)
- current: documentation ( source)
<?php
$types = array(
"text" => 2,
"image" => 2,
"audio" => 2,
);
$result = [];
for ($i = 0, $universalCount = current($types); $i < $universalCount; ++$i) {
array_push($result, ...array_keys($types));
}
var_export($result);