PHP

1, Mime_content_type () function to judge get file type Mime_content_type returns the MIME type of the specified file. Usage: The code is as follows Copy Code Echomime_content_type (' Php.gif '). " n ";Echomime_content_

This section will illustrate the characteristics of the new garbage collection mechanism (i.e. GC) in PHP 5.3. Each PHP variable exists in a variable container called "Zval". A Zval variable container that includes two bytes of extra information in

(1) Open PHP security mode PHP's Safe mode is a very important embedded security mechanism that can control functions in PHP, such as System (), At the same time, a lot of file operation functions are controlled by permissions, also do not allow

Taobao Company provides a very useful IP geographic information query interface. Here: http://ip.taobao.com/ TaobaoIPQuery2 This class will greatly simplify the relevant information query. Class TaobaoIPQuery2 File: $ip)); $ch =

With the increase of the content of the website and the increase of user's traffic, it is unavoidable that the load of the website will be more and more slow, limited by the bandwidth and the number of requests of the server at the same time, we

Directory1 . Vulnerability Description 2 . Vulnerability trigger Condition 3 . Vulnerability Impact Range 4 . Vulnerability Code Analysis 5 . Defense Methods 6. Defensive thinking1. Vulnerability descriptionFor this vulnerability, we can briefly

From: http://www.jb51.net/article/49205.htm This article mainly introduces the differences between PHP functions Addslashes and Mysql_real_escape_string, and an Introduction to SQL injection vulnerability, A friend you need can refer to the

Recently because Google closed the Clientlogin authentication method. The Zend Gdata API that has been used previously has not worked properly.Damn it, Zend. May 20 updated API but did not convert the Google recommended OAuth 2.0 authentication

CI framework file upload and image processing Usage Analysis, ci File Upload This document describes the CI framework file upload and image processing usage. We will share this with you for your reference. The details are as follows: // List page

In-depth understanding of the implementation of PHP kernel (6) hash tables and PHP hash tables Link: http://www.orlion.ga/241/ I. Hash table (HashTable) Hash Tables are used in most implementations of dynamic languages. A hash table is a type of

Simple Usage Guide for trim () functions in PHP, and trim User Guide String trim (string $ str [, string $ charlist])-removes spaces (or other characters) at the beginning and end of the string) When the second parameter of the trim () function is

During PHP website development, an HTTP 404,403 error occurs when a user fails to access a website or fails to find a page. To improve user experience, we need to customize the 404 and 403 error pages, prompt the user to perform the next step or

Methods in PHP cannot be overloaded. The so-called method overload means defining the same method name. The number of parameters is different or the type of parameters is different, to access different methods with the same method name. inheritance

Use the Appcan client to automatically update PHP versions (all) and appcan versions In the process of project development, when the app is automatically updated, check the relevant information and then sort out the Appcan client's automatic PHP

Xdebug document (iii) stack tracing and xdebug document stack Tracing When xdebug is activated, once PHP displays notifications, warnings, or errors, xdebug displays stack trace information. This stack information can be configured and displayed

This is the second phase of the PHP performance optimization series. How to Use the PEAR tool Benchmark to get the execution time of code or functions line by line.To do what you want, you must first sharpen your skills!How to install PEAR and

Open-source software has become a basic component for building some large websites in recent years. Along with the growth of websites, the best practices and guidelines around their architectures have been revealed. This article aims to address some

PHP is a server-side embedded scripting language. it is a server-side, cross-platform, object-oriented, and HTML embedded scripting language. This chapter will introduce you to PHP development environment setup and common configuration problems and

The php-fpm slow log slowlog setting allows us to see which php processes are too slow to cause website problems.We can easily find the problem. The code is as follows:Copy code Vi/data1/server/php-cgi/etc/php-fpm.conf ; The log file for slow

First, let's look at the header function.The header () function sends the original HTTP header to the client, header (string, replace, http_response_code)Php header 404:Php code  The code is as follows:Copy code Header ("HTTP/1.1 404 Not Found");