- print_r: documentation ( source)
- array_merge: documentation ( source)
<!DOCTYPE html>
<html>
<body>
<?php
$a1=array("flagname"=>"LTV Under 50","b"=>"green");
$a2=array("flagname"=>"blue","b"=>"yellow");
$arr = array_merge($a1,$a2);
print_r($arr);
?>
</body>
</html>