PHP Tutorials

php Writing daemon process This afternoon in segmentfault.com see a question, the title is "PHP How to Do service", which asked whether PHP can only be called Web-based. In fact, many people have a misunderstanding of PHP usage scenarios, that PHP

Session data exposure Session data often contains some personal information and other sensitive data. For this reason, the exposure of session data is a matter of general concern. In general, the scope of exposure is not very large, because session

File system spanning No matter how you use the file, you have to specify a filename somewhere. In many cases, the file name is used as a parameter to the fopen () function, and the other function invokes the handle it returns: When you use

This paper describes the function and usage of the PHP magic method. Share to everyone for your reference, as follows: name= $name; $this->sex= $sex; $this->salary= $salary; }//Magic constant __class__ Public Function getclassname () {echo

This article mainly introduces PHP based on Ob_start (' Ob_gzhandler ') implementation of the Web page compression function, involving PHP ob_gzip, Ob_start and other functions such as buffer and content compression related skills, the need for

This example describes how PHP obtains all dates between the start and end dates. Share to everyone for your reference, as follows: /** * Gets the date of each day in the specified date period * @param date $startdate Start date * @param date

Yii applications are built on components. A component is an instance of Ccomponent or its subclasses. The use of a component primarily involves accessing its properties and the time it is triggered or processed. The base class Ccomponent specifies

In the development process of the website, we often need to encrypt some data (such as user password), this article mainly introduces several common cryptographic functions of PHP. MD5 Encryption: String MD5 (string $str [, bool $raw _output =

PHP supports the continuation of breakpoints, mainly rely on the HTTP protocol header Http_range implementation.HTTP Breakpoint Continuation principleHTTP header Range, Content-range ()The range and Content-range entity headers are used in HTTP

This article describes the PHP picture clipping and scaling example, not much nonsense, the specific code is as follows: /* *exif_imagetype--Determine the type of an image * Function Description: function is to cut an image into an image of any

In this paper, we describe the classic encryption method of Discuz content of PHP encryption. Share to everyone for your reference, as follows: Guide: Sometimes, we hope that some sensitive fields in the table to encrypt, think of a good long time

since version 1.1.2, YII has been equipped with a WEB-based code generation tool Gii . It replaces the previous command line-end code generation tool yiic shell . In this section, we will explain how to use the GII and how to extend the GII to

Install the Build environment Now you may have at least one installed PHP and already use it for Web-based application development. You may have been from PHP. NET downloaded Win32 build and run on IIS or Windows version of Apache, or use the

Nullable types Nullable types are primarily used for parameter type declarations and function return value declarations. The two main forms are as follows: From the example is easy to understand, refers to the passage? Indicates that the type of

In PHP, there are many string functions, such as to filter the string ending the space, and then find its length, the general wording is: Strlen (Trim ($STR)) If you want to implement a similar link in JS, such as the following should be how to

In Redis we often use set,get and other commands, careful you have not found, there are a few similar commands called Setbit,getbit, what are they used to do? What is bitmap? is to represent the value or state of an element by a bit, where the

Each PHP variable exists in a variable container called "Zval". A Zval variable container that includes two bytes of extra information in addition to the type and value of the variable. The first is "Is_ref", which is a bool value that identifies

Session mechanisms (sessions) are used in PHP to hold some of the data in concurrent access. This makes it possible to help create more humane programs that increase the attractiveness of your site. A visitor visiting your Web site will be assigned

(Practical) PHP time class complete Example year=date ("Y", $time);//return two-digit year}else{return $this->year=date ("Y", $time);//return four-bit year 2016}}/ /Returns the month of the current time time: The time format is timestamp 2016-8-27

In this paper, we describe the XML format data of PHP based on DOM. Share to everyone for your reference, as follows: formatoutput = true; $r = $doc->createelement ("books"); $doc->appendchild ($R); foreach ($books as $book) {$b =