php函数算法优化技巧：大数据量处理的优化策略

function quickSort($arr) {    $left = [];    $right = [];    $pivot = $arr[0];    for ($i = 1; $i <p><strong>优化大数据过滤:</strong></p><p>使用优化后的循环，高效过滤大数据量：</p><pre class="brush:php;toolbar:false;">function filterData($data, $condition) {    $filteredData = [];    foreach ($data as $item) {        if (eval("return $condition;")) {            $filteredData[] = $item;        }    }    return $filteredData;}$data = range(1, 100000);$startTime = microtime(true);$filteredArray = filterData($data, '$item % 2 == 0');$endTime = microtime(true);echo "Time taken: " . ($endTime - $startTime) . " seconds";