Ok so in 2018 I wrote this, it compares a comma separated list to a string representation of an array : r/programminghorror
Comma separated string to parent child relationship array php - Stack Overflow
Using the implode function in PHP - Pi My Life Up
What is explode and implode in PHP? - TechLifeDiary
PHP Implode – Convert Array to String with Join
Array : Build comma separated string in PHP Loop - YouTube
PHP Array Exercise: Merge two commas separated lists with unique value only - w3resource
PHP Implode – Convert Array to String with Join
Converting nested arrays to comma-separated lists in PHP in various ways - Projects Engine
PHP Implode – Convert Array to String with Join
How to create a comma-separated list from an array in PHP? - WebTechRiser.com
PHP explode(): Split a String by a Separator into an Array of Strings
PHP Array to string: a complete guide - Copahost
PHP Arrays - Phppot
php - retrieving array as comma separated values in codeigniter - Stack Overflow
Converting String to Array in PHP Using Different Methods
How to Split a String and get Last Array Element in JavaScript - Sabe.io
PHP array or object into a comma separated string | Florida Developer
Search multiple row separate by comma from mysql using php - Stack Overflow
Java Split String by Comma - Javatpoint
PHP Convert String to Array By Comma Example - MyWebtuts.com
mysql - How to split and sum comma separated multiple line values in php - Stack Overflow
PHP Implode – Convert Array to String with Join
