How to enable GD2 extension in PHP

Extension = php_gd2.dll Find the PHP configuration file PHP. ini, search for extension = php_gd2.dll, and remove the semicolon;If this is not directly added, it is applicable to the Windows system and PHP that supports GD during compilation. Just

Connect to hive in PHP to execute SQL query

Conditions for using PHP to connect to hive 1. Install Thrift #./Configure -- without-Ruby # Make & make install If libevent-devel is not installed, install the two dependent libraries Yum-y install libevent-devel first. Start hive thrift

PHP opcode cache: APC details

Preface Compared with other compiled languages, the performance of PHP is not outstanding, but the performance improvement is obvious after the opcode cache is used. common examples include eaccelerator, xcache, and APC. This document mainly

Memcache and memcached two PECL libraries on PHP

When I checked PHP manual, I found that there is one memcache and two memcached PECL libraries in PHP manual, but I don't know the difference between them. Today, I am not very busy. I searched the internet and found that it was two different PECL

Encoding of WebService calls on the GBK page in PHP: XML error parsing SOAP payload on line 1

WebService, which must be familiar to everyone, is a way for the "service provider" to provide services to the "service caller. There are several key technologies: XML: Standard Method for describing data Soap: Simple Object Access

Use pear to buffer PHP programs

Introduction: This uses pear to buffer PHPProgramThe details page of PHP, related knowledge, skills, experience, and some PHP source code. Class = 'pingjiaf' frameborder = '0' src = 'HTTP: // biancheng.dnbc?info/pingjia.php? Id = 325463 'rolling =

PHP miscellaneous refactoring-design for improving existing code 3 reorganizing data PHP miscellaneous refactoring-design for improving existing code-reorganizing your function

Mind Map This article introduces how to re-organize your function to continue refactoring by taking on the above PHP miscellaneous "refactoring-improving the design of existing code. This chapter mainly focuses on Data Reconstruction. 1.

PHP open-source CMS swordsmanship sxsw Exhibition

Document directory Participating websites based on the three systems are: Three participating teams Current Progress At this year's sxsw (South by Southwest Interactive Festival) Exhibition, joomla, WordPress and DrupalAgain, they organized a

54: Improve PHP programming efficiency introduce cache mechanism to improve performance

0. replace double quotation marks with single quotes to include strings. This will be faster. Because PHP will search for variables in strings enclosed by double quotes, but not in single quotes. Note: Only ECHO can do this, it is a "function" that

PHP system variables Environment Variables

In PHP website development, you often need to set and apply the PHP environment variables to meet the needs of the website. In the virtual host environment, sometimes we need to use the PHP environment variable operation letter.To set the PHP

PHP built-in function instance tutorial

Case-sensitive conversion functions Strtolower ()Strtoupper ()Ucfirst ()Ucword () Text HTML Tag processing function Nl2br ()Htmllentities ()Htmlspecialchars ()Stripslashes ()Strip_tags ()Number_format ()Strrev ()MD5 () // Convert to lowercase$ A =

My template analysis engine class PHP. NET development method-label design

When designing my own template analysis class, the first question I encountered was how to design my own tag syntax. After referring to and comparing many label representations, I decided to use the label representations of class. Net controls.

Parse php to write logs into syslog

During the project, we often need to write system logs to the system syslog for convenient O & M. Next we will introduce The following php syslog operations:Configure syslog in linux In linux, facility (device) has the following types:AUTH common

Resolve the memory management in PHP, and dynamically allocate and release the memory in PHP.

Abstract: memory management has a significant impact on long-running programs, such as server daemon. Therefore, understanding how PHP allocates and releases memory is extremely important for creating such programs. This article focuses on PHP

In-depth understanding of Session and Cookie in PHP

When setting a cookie on a page, you must refresh or go to the next page to use $ _ COOKIE to get the variable value. The reason is that when the page is accessed and loaded by the browser for the first time, the cookie in the page will be set and

Similarity Calculation function of PHP: Introduction to levenshtein

Instructions for useLet's take a look at the levenshtein () function instructions in the manual: The levenshtein () function returns the Levenshtein distance between two strings. Levenshtein distance, also known as the editing distance, refers to

PHP vulnerability full solution (details)

PHP websites are vulnerable to the following attacks:1. Command Injection)2. eval Injection)3. Script Insertion)4. Cross-Site Scripting (XSS)5. SQL injection attacks)6. Cross-Site Request Forgery (CSRF)7. Session Hijacking)8. Session Fixation)9.

One of the global and $ GLOBALS [] analyses in php

This may cause some problems. Some may carelessly change a global variable. Global variables in PHP must be declared as Global when used in functions (note that the Global keyword is useful in function definition ). 1: Global is used to define

Php ascii code comparison table and character conversion

I. general ASCII code table Schematic ASCII code comparison tableTake character A as an example.Dec indicates decimal, such as 65Hx indicates hexadecimal, such as 41Oct indicates octal, for example, 101Char indicates the display character, such

Php space does not support socket but curl recaptcha usage

1. Modify the two methods in recaptchalib. php Copy codeThe Code is as follows: function _ recaptcha_http_post ($ host, $ path, $ data, $ port = 80 ){ $ Req = _ recaptcha_qsencode ($ data ); $ Response = ''; $ Url = $ host. $ path; $ Post_data = $

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