remove everything after first comma from string in php

Question

I want to remove everything(including the comma) from the first comma of a string in php eg.

$print=\"50 days,7 hours\";

should become \"50

Answer 1

Here's one way:

$print=preg_replace('/^([^,]*).*$/', '$1', $print);

Another

list($firstpart)=explode(',', $print);