Replace 2 commas separated by space with space using php

Question

Hi friends am trying to replace two commas separated by space with space using php. Here is my code

Suppose for example am having variable like

 $va         


        

Answer 1

Try this option:

$var = "hello, welcome, , , , ,";
$output = preg_replace('/,\s(?=[,])|,$/', '', $var);

hello, welcome

Demo

This uses a lookahead to target only commas that are followed by a space and a comma, or by the end of the string.