$myString = 'Hello Bob how are you?';
if (strpos($myString, 'Bob') !== false) {
echo "My string contains Bob";
}
$result = strpos("haystack", "needle");
if ($result != false)
{
// text found
}
$a = 'How are you?';
if (strpos($a, 'are') !== false) {
echo 'true';
}