PHP

We've been working to improve PHP7 performance, and last month we were very excited to note that GCC's PGO can bring nearly 10% performance improvements on WordPress. However, PGO as the name says (Profile guided optimization interested in Google)

Single case mode: As an object's creation pattern, the singleton pattern ensures that a class has only one instance, and instantiates it and provides it globally to the entire system. Instead of creating an instance copy, it returns a reference to

1.1 工厂模式 , factory method or class generation object, not in code directly new class Factory{ static function getDatabase(){ return new Mysql($host, $user, $pass); } } #使用 Factory::getDatabase();

the function of PHP page jump is to jump one page to another page in the website. For a friend who has just learned the language of PHP, it is the basic method that must be mastered. Page jumps may be triggered by a user clicking on a link, a

The life cycle of PHP is detailed A Study of PHP variables PHP Memory Management Detailed Installing the Build PHP environment Write the first PHP extension The return value of the PHP function PHP extension Functions Accept Parameters How

When writing cache is used, it is often encountered to build multiple layers of directory operations, which we manually to operate too cumbersome, today we have a look at the use of Python recursion to build a multi-level directory method: First on

1. PHP InstallationTar zxf php-5.3.2–c/usr/srccd/usr/src/php-5.3.2./configure--PREFIX=/USR/LOCAL/PHP5--enable-force-cgi-redirect--enable-fastcgiMake;make InstallCP Php.ini.dist/etc/php.iniCd/usr/local/php5/bin./php-cgi–b 127.0.0.1:99992, Pcre

Installing PHP requires GD (FreeType, JPEG, PNG) support 1. Installation FreeType [Root@localhost softs]# tar XF freetype-2.5.0.tar.bz2-c/usr/src/ [Root@localhost softs]# cd/usr/src/freetype-2.5.0 [Root@localhost

This example adds Chinese support by using the Yii Framework Development tutorial (one) UI component ActiveForm example, a brief description of multinational language support. Detailed documentation can refer to the YII documentation. Information

Cjuidatepicker is used for date input, which encapsulates the JUI DatePicker plug-in, and its basic usage is as follows: errorsummary ($model);?> widget (' Zii.widgets.jui.CJuiDatePicker ', Array ( ' name ' => ' my_date ', ' language ' => '

sname = $sname = = '? ' M_captcha ': $sname; /** generate a CAPTCHA picture * @param int $length authentication length * @param Array $param parameters * @return IMG * * Public Function Create ($length =4, $param =array ())

PHP 5.3 added the __call and __callstatic magic method. __call the __call method is automatically invoked when the method being invoked does not exist or has insufficient permissions. __callstatic the __callstatic method is automatically invoked

Function: 1. Get the url,email,image in the content. 2. Replace the url,email,image in the content. Url:xxx Email:admin@admin.com Image: Grep.class.php '/ '/([\w\-\.] +@[\w\-\.] + (\.\w+))/', ' image ' => '//i"); Private $_content = ';

1. String comparisons by Byte: The strcmp () and strcasecmp () functions are used to compare two strings by byte. Syntax format: int strcmp (string str1,string str2) int strcasecmp (string str1,string str2) If STR1=STR2, the return value is 0;

A useful feature of PHP is the way it handles PHP forms. The very important principle you need to understand is that any elements of the form will automatically take effect in your PHP script. See "Variables outside of PHP" in this manual for more

When you create the MVC view of a YII application, you can directly construct the page view directly using the HTML language, and Yii also provides several help (helper) classes to simplify the view writing. For example, to create a text entry field,

For an experienced PHP programmer, it is no longer a difficult task to implement the query function of a string. Here we will introduce a PHP query string shortcut techniques for your reference. A deep understanding of PHP plug-in mechanism

Summary: This article will discuss the concept of polymorphism and its application in object-oriented design, and will also analyze how to use polymorphism in PHP 5 and the advantages and disadvantages of existence. Support for late binding has

Using PHP to create images is a fairly easy thing to do. As long as you install some Third-party library files and have some knowledge of geometry, you can use PHP to create and process images. PHP currently uses the GD library to process images.

Session management, a very important part, let the parameters pass between the pages, this is a simple example, while learning to use, the effect as shown: Main Page index.php code: session_start(); $_SESSION['name']="zhang3"; echo