get_halves

<?php

function get_halves ($a) {
	$total_length = 0;
	for($i = 1; $i <= count($a); $i++) {
		$total_length += strlen($a[$i]);
	}
	echo "Cutting an array of ".count($a)." strings totaling ".$total_length." characters in half:<br><br>";
	$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[$i]);
		echo "Begin iteration. The length of the first half is now ".$first_half_length."<br>";
		if ($first_half_length < ceil($total_length/2)) {
			echo "[".$i."]: ".$a[$i]." (Continuing, because ".$first_half_length." is less than ".ceil($total_length/2).")<br>";
		}
		else {
			echo "[".$i."]: ".$a[$i]." (This is the last string in the first half.)<br>";
			$done = true;
			$second_half_index = $i + 1;
			$second_half_length = $total_length - $first_half_length;
			echo "Stopping at [".$i."], because ".$first_half_length." is larger than or equal to ".ceil($total_length/2)."<br>";
		}
		$msg = "No.";
		if ($done) $msg = "Yes.";
		echo "End iteration. Are we done? ".$msg."<br>";
		}
	}
        echo "--- IDENTIFY HALF AT INDEX: (".$second_half_index.") ---<br>";
	if ($second_half_index > 0) {
		for($i = $second_half_index; $i <= count($a); $i++) {
			echo "[".$i."]: ".$a[$i]."<br>";
		}
	} else {
		echo "There was a problem.";
	}
	echo "<br><br>Total length: ".$total_length."<br>";
	echo "First half length: ".$first_half_length."<br>";
	echo "Second half length: ".$second_half_length."<br>";

}
$a = array(
	1=>"one two buckle my shoe",
	2=>"two",
	3=>"three",
	4=>"four",
	5=>"five (5)"
);
get_halves($a);
$a = array (
	1=>"Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.",
	2=>"Lorem ipsum dolor sit amet.",
	3=>"Lorem ipsum.",
	4=>"Lorem ipsum dolor."
);
get_halves($a);

?>