PHP Basics: Loops

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In this video I ramble on about the 4 loops that PHP has.
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Lets say I wanted to dynamically check if any of the $_POST entities were empty, how would I do so? I've tried a foreach() loop but I can't seem to get it to work.

Exp
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try for example:


echo "POST is set";

}
else
{

echo "POST is not set";

}

laffen
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Thank you very much!! Wonderful tutorial. You made it very simple to understand!!

AsithMahatHD