How to Create Comma Separated List From an Array in PHP?

Problem:

You have an array (see following) with some elements inside. You want to create a string joining the elements of the array with commas.

<?php
$week_day = array(“Sunday”, “Monday”, “Tuesday”, “Wednesday”, “Thursday”, “Friday”, “Saturday”);
?>

Solution:

PHP built-in function implode() is the perfect match for the solution. The function takes two parameters – the first one works like glue and the second one is an array. Using the glue, the function joins all the array-elements of the second parameter and returns it as a string. See it in action-

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<pre> <?php $week_day = array("Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"); $comma_separated_str = implode(", ", $week_day); echo $comma_separated_str; ?> </pre>

Output:
Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday

How it works:The implode() function takes the array $week_day and joins one element to its next with the glue (comma) and returns the string you see in the output.