php http build query
$data = [ 'foo' => 'bar', 'baz' => 'boom', 'cow' => 'milk', 'php' => 'hypertext processor' ]; echo http_build_query($data); // output: foo=bar&baz=boom&cow=milk&php=hypertext+processor echo http_build_query($data, '', '&'); // output: foo=bar&baz=boom&cow=milk&php=hypertext+processor