print_halves

gistfile1.php

function put_in_paragraph ($p) { return "<p>" . $p . "</p>"; }
function print_halves ($a) {
	$total_length = 0;
	for($i = 1; $i <= count($a); $i++) {
		$total_length += strlen($a[$i]);
	}
	$first_half_length = 0;
	$second_half_length = 0;
	$second_half_index = 0;
	$done = false;
	for($i = 1; $i <= count($a); $i++) {
		if (!$done) {
		$first_half_length += strlen($a[$i]);
		if ($first_half_length < ceil($total_length/2)) {
			echo put_in_paragraph($a[$i]);
		}
		else {
			echo put_in_paragraph($a[$i]);
			$done = true;
			$second_half_index = $i + 1;
			$second_half_length = $total_length - $first_half_length;
		}
		}
	}
	if ($second_half_index > 0) {
		for($i = $second_half_index; $i <= count($a); $i++) {
			echo put_in_paragraph($a[$i]);
		}
	} else {
		echo "There was a problem.";
	}
}