isset

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This PHP quiz contains questions for PHP developers to test their knowledge in the PHP language.
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PHP language is a widely-used open source general-purpose scripting language that is especially suited for web development and can be embedded into HTML.

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Null as parameter to ‘isset’ function

Submitted by shareable on Wed, 12/21/2011 - 20:31
Multiple choice question

Given the following PHP code, what will be the output?

$t;

if (isset($t))
echo "t is set";
else
echo "t is not set";

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