【发布时间】：2017-12-13 22:52:35
【问题描述】：
我正在编写一个 codeigniter 应用程序，在执行查询时遇到以下致命错误。
致命错误：允许的内存大小为 134217728 字节已用尽（已尝试 在 /var/www/html/cryd/_zcore/core/Loader.php 中分配 262144 字节） 在第 262 行
我可以增加允许的内存大小，但似乎问题可能更严重，如果是内存泄漏，我只会给 php 更多的内存来玩。查询甚至没有那么密集，它只返回一行数据。
这是我的控制器
<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class Invest_webhook extends CI_Controller {
private $web_msg = null;
private $proceed = 1;
private $data = null;
private $receive = null;
private $complete = 0;
private $member = null;
private function loadPage($page,$data=null){
$data = array_merge($data,$this->lang->language);
$this->parser->parse('dashboard/header',$data);
$this->parser->parse('dashboard/'.$page);
$this->parser->parse('dashboard/footer');
}
public function webhook(){
echo memory_get_peak_usage()."<br/>";
//$update = file_get_contents("php://input");
//$update = json_decode($update,true);
$update = array(
'notification_id' => '57233292b6a3d133e9c83822',
'delivery_attempt' => 1,
'type' => 'address',
'data' => Array(
'network' => "BTCTEST",
'address' => '2N1jfZt8Uc721FAWNjdVpQZjfTxeG271RKy',
'balance_change' => 1.00000000,
'amount_sent' => 0.00000000,
'amount_received' => 1.00000000,
'txid' => '',
'confirmations' => 4,
'is_green' => false
),
'created_at' => 1497176944
);
$data = $this->get_investment_data($update['data']['address']);
if(!$data){
die('This address does not exist');
}
$this->data = $data[0];
$this->member = $this->get_member_data($this->data['tid']);
//Start the process to verify transaction and credit investment
$this->verify_investment();
$this->update_investment();
//$parameter = $this->web_msg;
//include APPPATH."libraries/telegrambotv2.php";
//$bot = new Telegram('331263599:AAEpHNAdyN1X5TenBk_QkJdt7xfwzDI6YeQ','bot');
echo $this->web_msg."<br/>";
}
private function verify_investment(){
include APPPATH."/libraries/BlockIo.php";
$this->load->config('block');
$block = new BlockIo($this->config->item('api_token'),$this->config->item('api_secret'));
$address = ($this->data['address']);
$receive = $block->get_address_balance(array('addresses' => $address));
$receive = $receive->data->available_balance;
$expect = $this->data['inv'];
settype($receive,'float');
settype($expect,'float');
echo '<br/>'.$receive."<br/>".$expect."<br/>";
if($receive == $expect){
$this->receive = $receive;
return true;
}
$this->proceed = 0;
$this->web_msg = 'inv_mismatch';
return false;
}
private function get_member_data($tid){
$this->load->model('invest_model','invest');
return $this->get_member_data($tid);
}
private function update_investment(){
if(!$this->proceed){
return;
}
$this->load->model('invest_model','invest');
$einv = $this->member['inv'];
settype($einv,'float');
$new_inv = $einv + $this->receive;
$this->member['inv'] = $new_inv;
$this->member['last_inv'] = 'NOW()';
$this->data['confirmed'] = 1;
if($this->invest->update_investment($this->data,$this->member)){
$this->web_msg = 'inv_complete';
$this->complete = 1;
return true;
} else {
$this->proceed = 0;
$this->web_msg = 'inv_unx_err';
return false;
}
}
private function get_investment_data($address){
$this->load->model('invest_model','invest');
return $this->invest->investment_data($address);
}
private function log($text){
$file = fopen(APPPATH."/logs/investments/log.log",'a');
fwrite($file,$text);
fwrite($file,"\n");
fclose($file);
}
}
这是我的模型
<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class Invest_model extends CI_Model {
public function __construct(){
parent::__construct();
}
public function investment_data($address){
$this->db->where('address',$address);
$this->db->where('confirmed',0);
$f = $this->db->get('investments');
return $f->result_array();
}
public function current_investment($tid){
$this->db->select('inv');
$this->db->where('tid',$tid);
$f = $this->db->get('users');
$f = $f->row_array();
return $f;
}
public function get_member_data($tid){
echo "<hr/>";
echo memory_get_peak_usage()."<br/>";
$this->db->where('tid',$tid);
echo memory_get_peak_usage()."<br/>";
$f = $this->db->get('users');
echo memory_get_peak_usage()."<br/>";
return $f->row_array();
}
public function update_investment($inv,$member){
$this->db->trans_begin();
$this->db->set($inv);
$this->db->where('address',$inv['address']);
$this->db->update('investments');
$this->db->set($member);
$this->db->where('tid',$member['tid']);
$this->db->update('users');
if($this->db->trans_status() === FALSE){
$this->db->trans_rollback();
return false;
} else {
$this->db->trans_commit();
return true;
}
}
}
我不知道我可以在哪里进一步优化它，它非常简单直接，如果它在我的逻辑方法中存在问题，希望比我更好的头脑能够发现并进一步指导我。
提前致谢。
【问题讨论】：
-
我没有看到任何可能是原因的 for 或 while 循环。递归调用也可能导致这种情况。您正在使用的 DB 层是什么，例如
$this->db->get -
@Adder 你的意思是我正在使用的驱动程序吗？它的mysqli。
-
我不知道 mysqli 允许做
$this->db->where，我猜这是来自一些本土数据库层。 -
一件很奇怪的事情 - 你的目录结构
/var/www/html/cryd/_zcore/core/Loader.php看起来不对，Loader.php 应该在 [your_directory]system/core/ - 你的 CI 版本是多少？ -
@sintakonte 已将 codeigniter 安装配置为使用单独的应用程序文件夹和单独的核心文件夹。所有核心系统都在 _zcore 里面，而所有应用程序都在 _botadmin 里面
标签： php codeigniter memory-management memory-leaks max