searching a string for occurrence of AT&T

[chadr]

I want to identify strings with AT&T in them. Can't seem to find the
right way to do this due to the &.

I am using the strpos function in this manner:

if (strpos(($string), 'AT&T')) > 0)

I don't need to input or display using http. This is just a php
script that I'll run from the command prompt.

Thanks.