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@ 2014-01-04T11:50:34Z

<?php
if(!strstr(strtolower($_SERVER['HTTP_USER_AGENT']), "googlebot"))
{
    echo 'You\'re not a google bot!';
}

Output
Performance
VLD
References
Branches

strstr: documentation ( source)
strtolower: documentation ( source)

preferences:dark modelive preview

41.24 ms | 402 KiB | 5 Q