Convert to lowercase and concatenate

Question

What is the best to convert to lowercase and concatenate?

$first      = "Abc Def";
$second= "Ghi Jkl";
$result= $first.$second;    

Expected output: abcdef.ghijkl

Answer 1

Hope this simplest one can be helpful too. Here we using multiple functions implode, str_replace and strtolower

Try this code snippet here

<?php
ini_set('display_errors', 1);

$first = "Abc Def";
$second = "Ghi Jkl";

echo strtolower(str_replace(" ","",implode(".", array($first,$second))));

Output: abcdef.ghijkl