Live Demo: Join Array Elements with a String in PHP

 
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <title>Join Array Elements with a String in PHP</title>
</head>
<body>
​
<?php
// Sample array
$array = array("one", "two", "three", "four", "five");
​
// Creating comma separated string from array elements
echo join(",", $array);
?>
​
</body>
</html>