PHP Tutorials

Category: Linux time: December 26, 2015 It is relatively simple to install PHP and Apache under CentOS, but generally the PHP version is 5.3,apache version 2.2 by default. Because the PHP version and the Apache version of the higher performance

A few days ago when writing a program, there is a script execution time is longer, 100s+, but php.ini default script time-out is 30s, so naturally interrupted, plus set_limit_time (0), found that the function was disabled, Khan. To the forum to

10 Good Habits of PHP code specification PHP is known as dirty but Quick's programming language. Although the PHP program is not simple and beautiful for other programming language users, we can also make PHP's code look comfortable and elegant with

$_server variable collation in PHP Current URL: ' http://'. $_server[' Http_host '. $_server[' php_self ']; $_server Variable Summary A string of $_server[' query_string '//Queries (query). $_server[' document_root '///the document root directory

PHP Get guest Client extranet IP This can record the visitor's IP for statistics ah what. This code is super nice! Good to use and listen to the correct access to the user's physical address or something! Here's the code. Class Get_gust_info

How PHP Gets the client screen width, height, and resolution How PHP Gets the client screen width, height, and resolution The first thing to note is that PHP is the server-side language and is not getting the width and height of the client screen

Now a large number of Web 2.0 sites in order to pursue the user experience, will be a lot of CSS and JS files. This leads to slower concurrent access for multiple users under certain server bandwidth conditions. How to speed up Web page response?

The difference between a PHP curl and a socket First, what is the socket: PHP uses the Berkely socket library to create his connection, and the socket is a data result that you can use to open the server and client sessions. Server side has been

Ignore_user_abort () can be implemented when the client shuts down can still execute PHP code, can keep the PHP process has been executing, can achieve so-called scheduled task function and continuous process, only need to open the execution script,

PHP combines two arrays in two ways: + and Array_merge differences The combination of two arrays in PHP can use + or array_merge, but these two are still different, it is clear to understand the difference between the two approaches to the rapid

The filter function in PHP is a general term for a series of functions, including the Filter_var function in the Filter series function. The filter series functions are part of the PHP core. These functions can be used without installation. He is

Today when doing a crawler, PHP blank for a long time and then reported that the following error message: Fatal error:maximum execution time of seconds exceeded in ... It's simple, meaning that the script executes more than 30 seconds. This error

Analyze PHP program performance using XHPROF optimization Xhprof is a function-level PHP layered parser developed by FaceBook. The Data collection section is a C-based PHP extension, and the analysis report is a series of PHP-based HTML navigation

PHP easily transforms XML into arrays $obj = simplexml_load_string ($s), $json = Json_encode ($obj);p Rint_r (Json_decode ($json, true)); The class XML {protected $pointer is strongly recommended ; Public $degerler =array ();

Before removing the null value of the array is strongly write foreach or while, using these two syntax structure to delete empty elements in the array, the simple code is as follows: PHP code foreach ($array as $k = = $v) {if (! $v) unset (

PHP 5.3 or later, using the pthreads PHP extension, you can make PHP really support multi-threading. PHP multithreading in the processing of repetitive cyclic tasks, can greatly shorten the program execution time. As I said in my previous article,

The loop structure in PHP has roughly a for loop, while loop, do{} while loop, and several foreach loops, no matter what kind of loop, there are roughly a few ways to jump out of a loop in PHP, Break,continue,return,exit,die, Goto and so on. Here

This article describes how to use Nginx+lua+redis to build high-concurrency Web applications, and curl requests Nginx,nginx to query Redis through LUA, returning JSON data. First, installation 1, installation Lua-redis-parser #git clone

Magic Method (Magic methods) PHP's method of starting with two underscores is called a magic method, which plays a pivotal role in PHP. Magic methods include: __construct (), constructor of class __destruct (), Destructor for class

PHP XML to array, the XML is converted to an array, the required friends can refer to. Xml to the array, including the root key function Xml_to_array ($xml) {$reg = "/]*> ([\\x00-\\xff]*) /"; if (preg_ Match_all ($reg, $xml, $matches)) {$count =