use Illuminate\Database\Eloquent\Model; class ArrayModel extends Model { protected $table = ‘array_table’; protected $casts = [ ‘array_column’ => ‘array’, ]; } $array = [1, 2, 3]; // 存储数组到数据库 $arrayModel = new ArrayModel(); $arrayModel->array_column = $array; $...
使用数据库驻留连接池 数据库驻留连接池是 Oracle Database 11g 的一个新特性。对 PHP,它允许 Web 应用程序随着站点吞吐量的增长对连接数进行扩充。它还支持多台计算机上的多个 Apache 进程共享一个小规模的数据库服务器进程池。没有 DRCP,标准 PHP 连接必须启动和终止一个服务器进程。一个非 DRCP 持久性连接即...
在这种情况下,上面的方法将抛出类似于以下内容的未捕获异常: Fatal error: UncaughtTypeError: Return value ofPerson::getAddress() must be an instance of Address,arrayreturned 这是因为我们返回的是一个数组,而不是一个Address对象。现在,问题是:为什么使用类型提示?使用类型提示的重要优势是它将始终避免意外地...
在in_array()方法中,第一个参数是反序列化对象,第二个参数的数组中有tostring返回的字符串的时候tostring会被调用 反序列化的对象作为class_exists()的参数的时候(用的少)<?php highlight_file(__FILE__); class sunset { public $name = 'makabaka'; function __construct() { echo "调用 " ." __con...
在部署环境下数据库连接在 config 目录下的 database.php 文件中进行配置: 根据配置文件中的信息进行数据库连接的编写: 在此我们可以预先通过可视化的数据库管理工具创建数据库: 随后可以在数据库中创建对应的表内容: 此时还差数据表数据,直接通过可视化环境对其进行编辑即可: ...
array(“张三”, 20, “男”), array(“李四”, 25, “女”), array(“王五”, 30, “男”) ); foreach($users as $user){ echo “ “; echo “ “.$user[0].” “; echo “ “.$user[1].” “; echo “ “.$user[2].” ...
子进程 父进程派生许多子进程,同时使用setuid,setgid将子进程权限切换为非root 子进程用户可以通过httpd.conf设置 User nobody Group nobody nginx.conf $ cat /etc/nginx/nginx.conf user www-data; fastcgi 进程 root 13082 0.0 0.1 19880 2584 ? Ss 09:28 0:00 php-fpm: master process (/etc/php5/fp...
auth (string, or an array with one or two elements): used to authenticate with the server prior to sending commands. database (integer): selects a different database. Sessions have a lifetime expressed in seconds and stored in the INI variable "session.gc_maxlifetime". You can change it...
First, I get the database connection object to get the table schema and data to be dumped into a file. I read all the table names from the database and store into an array. Then, I iterate the array of database tables to prepare the SQL script for the data/structure. This SQL scri...
Although Active Record is very convenient to use, it is not as efficient as using plain arrays when you need to retrieve a large amount of data from database. In this case, you may consider calling asArray() while using Active Record to query data so that the retrieved data is represente...