PHP - isset() Function to Verify if a Variable Has a Value

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empty() is also very useful, it checks whether the variable exists and if its value is a false-type (null, 0, false, array(), "")

ravagerslb
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I had a situation, where when I did refresh the isset() stops working. It only started working when I change the "name" in html

lebedev
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One day you will get more views than Clinton the cat :)

justinbuckley