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<?php valueInArray($number, $numbers){ return in_array($number, $numbers); } $numbers = array(4, 9, 25, 30); if(valueInArray($numbers, 4)) { echo "<p>Number 4 is in array.</p>"; } else { echo "<p>Number 4 is not in array.</p>"; } if(valueInArray($numbers, 10)) { echo "<p>Number 10 is in array.</p>"; } else { echo "<p>Number 10 is not in array.</p>"; } ?>
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