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This sesison to the database is very simple, is based on the session_id of the database crud operations, mainly used, Session_set_save_handler this method, custom session execution method, First create the data table CREATE TABLE ' Sessions ' (

PHP supports 8 of original data types. Four scalar types: ? Boolean (Boolean) ? Integer (integral type) ? Float (floating point type, also called double) ? String (strings) Two types of composite: ? Array (arrays) ? Object (Objects) Finally,

BC is the abbreviation of binary calculator. The arguments for the bc* function are the operands plus an optional [int scale], such as String Bcadd (String $left _operand, String $right _operand[, int $scale]), if scale does not provide , the

-->$right returns 1 * $scale decimal places *************************************************************************************** $a = 4.45; $b = 5.54; if (Bccomp ($a, $b, 2) = = 0) {} ***************************************************************

1. isset function: Determine whether the variable is initialized Description: It does not determine whether the variable is empty and can be used to determine whether the elements in the array have been defined Note: When using isset to determine

checkdnsrr-DNS traffic checks for the specified host (domain name) or IP address closelog-Turn off System log links define_syslog_variables-initialization of all syslog-related variables DNS_CHECK_RECORD-CHECKDNSRR Alias DNS_GET_MX-GETMXRR Alias dns_

How do I use PHP to determine if a GIF picture is a dynamic picture (animation)? The first thought is to use the getimagesize () function to look at the type value, found that all are gif, so this method is not feasible. The following is a function

This article briefly analyzes the use of PHP in the exit and die differences, there is a need for friends to see. First, consider a question: What does the following code show to the page? There was a time when I thought the page would show 123

(1) method of the PHP object to the array (object to array): /** * Object turn array /function Object_to_array ($obj) { $_arr=is_object ($obj)? Get_object_vars ($obj ): $obj; foreach ($_arr as $key => $val) { $val = (Is_array ($val))

In the process of web development, when we need to pass in the URL of the Chinese character or other special characters such as HTML, it always seems to encounter a variety of small problems, because different browsers for their coding is not the

Share a common PHP paging class. There are three kinds of manifestation, the concrete effect chart is as follows: (1) (2) (3) The specific code for the page class of PHP and how to use it are as follows: /** *php Paging class * *show (2)

Add (' 1asdf '); * $obj->getqueuelength (); * $obj->read (11); * $obj->get (8); * * Class memcachequeue{public static $client; The Memcache client connects to the public $access; Whether the queue can update private

-->null,//only supports a Master ' slave ' =>array (),//can have more than one slave); /** * Constructor * @param boolean $isUseCluster whether the M/s scheme/Public function __construct is used ($isUseClust Er=false) {$this->_isusecluster =

Array_diff (array array1, array array2 [, array ...]) DescriptionArray_diff () returns an array that includes all values that are in array1 but not in any other parameter array. Note that the key name remains unchanged. Liezi "green",

Last October, my colleagues at Etsy and I had a discussion about how to write extensions to an explanatory language like PHP, where Ruby or python should be easier than PHP. We talked about the hurdle of writing a successful extension is that they

The use of PHP to develop applications, especially web programs, often need to generate random passwords, such as user registration to generate random passwords, user reset password also need to generate a random password. Random password is a

cookie是一种在浏览器远端存储数据并以此来跟踪和识别用户的机制。简单的说，cookie是web服务器暂时存储在用户硬盘上的一个文件夹，并随时被web浏览器读取。当用户再次访问web网站的时候，网站通过获取cookie记录用户的特定访问信息（如：上次访问的位置，花费的时间，用户名和密码） ，从而迅速做出相应，比如不需要用户输入密码就可以登录。 文本文件的格式如下：用户名@网站地址[数字].txtcookie 的功能主要有以下几个方面： 1, record some information

Today I smoked a morning to look at the previous solution to the memory problem of the code, relatively speaking, I am very dissatisfied with the code optimization program, one import 40,000 of data to make the code so cumbersome, I think this is

Today I smoked a morning to look at the previous solution to the memory problem of the code, relatively speaking, I am very dissatisfied with the code optimization program, one import 40,000 of data to make the code so cumbersome, I think this is

The difference between post and GET request mode: 1. Different request form: Get request is to send the data angle at the end of the URL to the server, post way is in a separate message form, sent to the server in the background. 2. Different send