第一个值以逗号分隔的字符串

Question

There will be a string with a single or multiple with no commas at all.

$str = "a, b";

How do I get the first value before the comma if it contains comma(s)? This is what I did.

if(preg_match('/[,]+/', $str, $f)) {
     $firstVal = $f[0];
}

NOTE: Is /^[^,]+/ better suited?

Answer 1

You can use strtok:

$firstVal = strtok($str, ",")