PHP

Basic functions of array manipulationThe key name and value of the arrayArray_values ($arr); Get the value of an arrayArray_keys ($arr); Gets the key name of the arrayArray_flip ($arr); the values in the array are exchanged with the key names (if

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 introduces the

When designing and maintaining websites, users often need to restrict access to some important files or information. Generally, we can adopt an HTTP-based user authentication mechanism built into the WEB server. When a visitor browses a protected

Retrieve the job queue from the database and create a new process for execution. wait until the job ends. The code is as follows: Class Controller_Jobs extends Controller_Base { Public function before (){ Parent: before (); If (Request: $ protocol!

Recently, I have been thinking about the efficiency of string operations. the interception of strings will not avoid the consumption of space re-allocation. I also read the source code of the explode function, understand, use your own analysis and

As the company needs it, our subsequent projects will adopt the PhpCtemplate engine for development. Here, I just wrote what I learned this month and my understanding. If there are any errors or inaccurate descriptions, I hope you can criticize and

We often need to determine whether a mobile phone is accessed and then perform automatic jump operations. this is a function separated from a PHP framework to determine whether it is a mobile phone, sharing is sometimes very useful in some occasions.

This article introduces how to use the PHP Closure (Closure). If you need some help, you may find that PHP has already come out of version 5.5, but you have been using PHP5.2, it makes me look like a young man from the mountains, and the Earth is

This article provides a detailed analysis of php_screw1.5: php encryption: Installation and Use. For more information, see the php file stored on the server in text format, it is easy for others to read the source code. to protect the source code,

Some SERVER information is often used in PHP programming. the detailed parameters of $ _ SERVER are sorted out, you can easily use $ _ SERVER ['php _ SELF '] # file name of the script being executed, which is related to document root. $ _ SERVER

This article describes how to allow users to open pdf files instead of directly browsing in the browser, but directly downloading the pdf file to a computer. some browsers have installed the pdf Open Program and associate it with the browser,

This article mainly introduces a way to make file downloads faster in PHP, that is, using the X-SendFile header, which is supported by servers with active traffic, in general, we can direct the URL to a file under the Document Root to guide users to

This article mainly introduces common PHP and javascript regular expressions and usage examples. carefully collected 10 PHP and javascript regular expressions each. if you need them, refer to the regular expressions below. In computer science,

This article mainly introduces the PHP forced conversion type and the security risks of remote management plug-ins. For more information, see remote management plug-ins, which are currently widely used by WordPress site administrators, it allows you

The new version of ThinkPHP provides the form token verification function, which effectively prevents security protection such as remote submission of forms. This article mainly introduces ThinkPHP token verification. if you need ThinkPHP, refer to

This is the second article in the "become a GC Expert Series. In the first article, we learned the processing process of several different GC Algorithms in Java garbage collection, the working method of GC, and the difference between the new

In PHP, we can use single quotes or double quotation marks to represent strings. However, as developers, we should understand the differences. Single quotation marks and double quotation marks can parse variables for defining characters, and

This article mainly introduces a piece of PHP-made Chinese Pinyin initials tool code, which is very practical and recommended to kids shoes with the same requirements. The code is very simple. there will be no more code here. let's take a look at

This article mainly introduces how PHP uses header () to output image caching. it involves the skills of using cache to process image files, which is of great practical value, for more information about how PHP uses header () to output image caching,

This article mainly introduces how to call the user's logon status in real time on static pages using js + php. the php page is called using js on a static page to realize the real-time call function of the user's logon status, for more information