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<?php //Given this: $foo = array(1, 3, 7); //write a function (on this whiteboard) to sum the values of the array. $sum = 0; for($i=0; $i < count($foo); $i++){ $sum += $foo[$i]; } //echo($sum); //echo(array_sum($foo)); //Given this: //$text = 'Pick first and two last chars'; //write a function (on this whiteboard) to get first and last two chars. echo(substr($text, 0 , 2)); ?>
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