<?php /*计算页面执行时间*/ class runtime { private $StartTime = 0; private $StopTime = 0; public function __construct(){ $this->StartTime = $this->get_microtime(); } private function get_microtime() { list($usec, $sec) = explode(' ', microtime()); return ((float)$usec + (float)$sec); } public function end() { $this->StopTime = $this->get_microtime(); return round(($this->StopTime - $this->StartTime) * 1000, 1); } } //开始计时 $runtime= new runtime(); //你的代码开始 $a = ' [{"id":1,"user_id":3,"posts_id":1,"replies_content":"5675675675","quote_id":0,"is_enable":1,"created_at":"0000-00-00 00:00:00","updated_at":"0000-00-00 00:00:00"},{"id":2,"user_id":3,"posts_id":1,"replies_content":"5675675675","quote_id":1,"is_enable":1,"created_at":"0000-00-00 00:00:00","updated_at":"0000-00-00 00:00:00"},{"id":3,"user_id":3,"posts_id":1,"replies_content":"5675675675","quote_id":1,"is_enable":1,"created_at":"0000-00-00 00:00:00","updated_at":"0000-00-00 00:00:00"},{"id":4,"user_id":3,"posts_id":1,"replies_content":"5675675675","quote_id":1,"is_enable":1,"created_at":"0000-00-00 00:00:00","updated_at":"0000-00-00 00:00:00"},{"id":5,"user_id":3,"posts_id":1,"replies_content":"5675675675","quote_id":1,"is_enable":1,"created_at":"0000-00-00 00:00:00","updated_at":"0000-00-00 00:00:00"},{"id":6,"user_id":3,"posts_id":1,"replies_content":"5675675675","quote_id":1,"is_enable":1,"created_at":"0000-00-00 00:00:00","updated_at":"0000-00-00 00:00:00"},{"id":7,"user_id":3,"posts_id":1,"replies_content":"5675675675","quote_id":1,"is_enable":1,"created_at":"0000-00-00 00:00:00","updated_at":"0000-00-00 00:00:00"},{"id":8,"user_id":3,"posts_id":1,"replies_content":"5675675675","quote_id":1,"is_enable":1,"created_at":"0000-00-00 00:00:00","updated_at":"0000-00-00 00:00:00"},{"id":9,"user_id":3,"posts_id":1,"replies_content":"5675675675","quote_id":1,"is_enable":1,"created_at":"0000-00-00 00:00:00","updated_at":"0000-00-00 00:00:00"},{"id":10,"user_id":3,"posts_id":1,"replies_content":"5675675675","quote_id":1,"is_enable":1,"created_at":"0000-00-00 00:00:00","updated_at":"0000-00-00 00:00:00"},{"id":11,"user_id":3,"posts_id":1,"replies_content":"34564645","quote_id":1,"is_enable":1,"created_at":"0000-00-00 00:00:00","updated_at":"0000-00-00 00:00:00"},{"id":12,"user_id":3,"posts_id":1,"replies_content":"34564645","quote_id":1,"is_enable":1,"created_at":"2015-06-30 13:38:41","updated_at":"2015-06-30 13:38:41"},{"id":13,"user_id":3,"posts_id":1,"replies_content":"34564645","quote_id":0,"is_enable":1,"created_at":"2015-06-30 13:48:53","updated_at":"2015-06-30 13:48:53"},{"id":14,"user_id":3,"posts_id":1,"replies_content":"34564645","quote_id":0,"is_enable":1,"created_at":"2015-06-30 16:35:41","updated_at":"2015-06-30 16:35:41"},{"id":15,"user_id":3,"posts_id":1,"replies_content":"34564645","quote_id":1,"is_enable":1,"created_at":"2015-06-30 16:35:46","updated_at":"2015-06-30 16:35:46"},{"id":16,"user_id":3,"posts_id":1,"replies_content":"34564645","quote_id":0,"is_enable":1,"created_at":"2015-06-30 16:35:50","updated_at":"2015-06-30 16:35:50"},{"id":17,"user_id":3,"posts_id":1,"replies_content":"34564645","quote_id":0,"is_enable":1,"created_at":"2015-06-30 16:45:51","updated_at":"2015-06-30 16:45:51"},{"id":18,"user_id":3,"posts_id":1,"replies_content":"34564645","quote_id":0,"is_enable":1,"created_at":"2015-06-30 16:50:35","updated_at":"2015-06-30 16:50:35"},{"id":19,"user_id":3,"posts_id":1,"replies_content":"34564645","quote_id":0,"is_enable":1,"created_at":"2015-06-30 16:51:28","updated_at":"2015-06-30 16:51:28"},{"id":20,"user_id":1,"posts_id":1,"replies_content":"sdfewwewe","quote_id":0,"is_enable":1,"created_at":"2015-07-01 16:22:54","updated_at":"2015-07-01 16:22:54"},{"id":21,"user_id":1,"posts_id":1,"replies_content":"sdfewwesdd23333we","quote_id":0,"is_enable":1,"created_at":"2015-07-01 16:23:29","updated_at":"2015-07-01 16:23:29"},{"id":22,"user_id":1,"posts_id":1,"replies_content":"sdfewwesdd23333we","quote_id":0,"is_enable":1,"created_at":"2015-07-01 16:23:37","updated_at":"2015-07-01 16:23:37"},{"id":23,"user_id":1,"posts_id":1,"replies_content":"111","quote_id":0,"is_enable":1,"created_at":"2015-07-01 16:24:41","updated_at":"2015-07-01 16:24:41"},{"id":24,"user_id":1,"posts_id":1,"replies_content":"u are sunshine","quote_id":0,"is_enable":1,"created_at":"2015-07-01 16:25:40","updated_at":"2015-07-01 16:25:40"},{"id":25,"user_id":1,"posts_id":1,"replies_content":"333-","quote_id":0,"is_enable":1,"created_at":"2015-07-01 16:31:30","updated_at":"2015-07-01 16:31:30"},{"id":26,"user_id":1,"posts_id":1,"replies_content":"cccc","quote_id":1,"is_enable":1,"created_at":"2015-07-01 16:47:55","updated_at":"2015-07-01 16:47:55"}] '; $a = json_decode($a); $b = []; foreach($a as $k=>$v){ if($v->quote_id == 0){ $b[$v->id] = $v; }else{ $b[$v->quote_id]->msg_item[] = $v; } } print_r($b); //计时结束 echo "页面执行时间: ".$runtime->end()." 毫秒";