What will be the output of the following PHP code?$num = "123";if (!filter

Question

What will be the output of the following PHP code?$num = "123";if (!filter_var($num, FILTER_VALIDATE_INT))echo("Integer is not valid");elseecho("Integer is valid");

Options:

A . Integer is not valid

B . Error

C . Integer is valid

D . No output is returned

Answer: Option C

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