strpos() not matching zero in string

[bunner_bob]

$string = '01234';
$match = '0';

if (strpos($string, $match)) echo 'foo';

But no foo 🙁

What IS a good way to match a zero in a string? Thought strpos was the lean, mean way to do it but if it doesn't work for zero (even when you typecast both $string and $match to string) what should I fall back to?

• Bob

[bunner_bob]

Ahh - it returns 0 as the position - which PHP evaluates as false.

This works:

if (strpos($string, $match)) > -1 echo 'foo';

[devinemke]

read the manual entry on [man]strpos[/man]

This function may return Boolean FALSE, but may also return a non-Boolean value which evaluates to FALSE, such as 0 or "". Please read the section on Booleans for more information. Use the === operator for testing the return value of this function.

$string = '01234';
$match = '0';

if (strpos($string, $match) !== false) {echo 'foo';}