- print_r: documentation ( source)
<?php
$string = '[ "example2" => "index.php", "submenu" => ["name" => "sub menu","hi" => "index.php","hello" => "index.php"], "example3" => "index.php" ]';
$arr = eval("return $string;");
foreach($arr as $key=>$value){
print_r( $key . " => ". $value);
}