Zend Preparation | PHP Quiz (Learning Mode)

Arrays Learning Mode

Qusetions Index 10/40

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What is the output of the following code ?

    $a = array(1,2,4,8);
    $b = array(0,2,4,6,8,10);
    echo count(
        array_merge(
            array_diff($a,$b),
            array_diff($b,$a)
            )
        );