note 102638 added to function.substr

substr is case sensitive.  To make it case-insensitive, use something like:

if (substr($text,0,6)==strtoupper($find_me))
{
echo "Case insensitive $find_me detected.";
}
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Server IP: 69.147.83.197
Probable Submitter: 170.140.100.114
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Manual Page -- http://www.php.net/manual/en/function.substr.php
Edit        -- https://master.php.net/note/edit/102638
Del: integrated  -- https://master.php.net/note/delete/102638/integrated
Del: useless     -- https://master.php.net/note/delete/102638/useless
Del: bad code    -- https://master.php.net/note/delete/102638/bad+code
Del: spam        -- https://master.php.net/note/delete/102638/spam
Del: non-english -- https://master.php.net/note/delete/102638/non-english
Del: in docs     -- https://master.php.net/note/delete/102638/in+docs
Del: other reasons-- https://master.php.net/note/delete/102638
Reject      -- https://master.php.net/note/reject/102638
Search      -- https://master.php.net/manage/user-notes.php