PHP和数组的平衡点

Question

Has anyone had any experience using PHP to find the balance point of an array?

I'm struggling to find a solution or any information on how to achieve this.

Answer 1

<?php
$arrayData = array(1,2,3,2,1);
for($i=0;$i<count($arrayData);$i++)
{
    $sumLeft = 0;
    $sumRight = 0;
    for($key=0; $key <= $i; $key++)
    {
        $sumLeft += $arrayData[$key];
    }
    for($key=$i; $key < count($arrayData); $key++)
    {
        $sumRight += $arrayData[$key];
    }
    if($sumLeft == $sumRight)
    {
        echo "Array Possition : "$i;
    }   
}
?>