php instance

This article mainly introduces the example of php writing session into the database. For more information, see The Code is as follows: Class session_handler {Protected $ maxlifetime = null;Protected $ dbHandle = null;Public $ config =

It is required to implement an array of seven elements, retrieve the Five Elements in the array, and generate a new array. These arrays are unique. The Code is as follows: $ Arr = array (1, 2, 3, 4, 5 );/*@ Res each element of each injection

This article describes how to use simplexml_load_string in php. For more information, see the following code. At first glance, the results are confusing: The Code is as follows: $ String = Hello

This article describes how to call Sina api Based on ip addresses to obtain city names and convert them to pinyin. For more information, see the following functions: 1. Get the current IP address, 2. Call Sina API to obtain the current city. 3.

This article mainly introduces the example of php getting the execution time of the target function. If you need it, you can refer to a class to test the execution time of the target function. The following is the class definition code: The Code

This article mainly introduces the ranking example of php statistical articles. The code can be used on dedemcs to collect articles by month, week, or day. For more information, see The Code is as follows: /**** Monthly, weekly, and daily

This article mainly introduces three methods in php to delete spaces in the string. For more information, see First: use regular expressions The Code is as follows: Echo preg_replace ('#', '', 'AB ');// Output "abab"?> Method 2: Use the

This article mainly introduces the example of using websocket in php. If you need a websocket connection, you can refer to the figure below to demonstrate the handshake between the client and the server, this part can be easily completed in node,

This article mainly introduces three PHP multi-dimensional array to one-dimensional array method examples, which are implemented by using the foreach, for, and while loop methods, respectively, for more information about how to convert a

I saw an image verification code on the Internet, which was very nice, but I found it a little problem. I 'd like to change it to my own taste. In many cases, if I cannot use it, it should be a font issue. The font used by the program comes with win7

This type of code is usually used when you create an installation program and a data backup program. I think there are not many online programs, and some of them are not very useful, sometimes this kind of code can save a lot of time by using the

This article mainly introduces a PHP encryption and decryption class for numbers, which only supports encrypted numbers. It is applicable to the encryption and decryption of the id field in the database and the encryption of the url according to the

The character in the string in PHP can be searched and modified by a string starting with 0 and containing numbers in square brackets similar to the array structure, for example, if you get the second $ str [1] or $ str {1}, {} is not recommended.

The goto operator can be used to jump to a specified position in the program. You can add a colon to the target location. The goto operator is added after PHP5.3 +. It is used to jump to another position of the program. Its usage is simple: The goto

This article mainly introduces three methods for removing line breaks (carriage return) in php. For more information, see The Code is as follows: // Line feed for different php Systems// The implementation of line feed varies with systems.//

This article describes how to use cookies in php, including creating and updating cookies, deleting cookies, and obtaining cookie values. For more information, see section 1. Create/update cookies. The Code is as follows: SetCookie ($ cookieName, $

Include () and require () statements include and run the specified file. The two structures are exactly the same on the contained files, and the only difference is the handling of errors. When the require () Statement encounters an error or the

This article mainly introduces the php Command Line usage and command line parameter descriptions. For more information, see The Code is as follows: [Root @ localhost/] #[Root @ localhost/] # php-r "var_dump (true);" # PHP code execution is not

This is a php collection class I wrote before. I have been using it all the time. I feel very simple and powerful. As long as I know a little about selector, I can collect any page and support https pages, simple collection is enough I. collection

At first, cURL was designed as a command line tool. Fortunately, php also supports cURL. With cURL, We can freely send HTTP requests to a url in the php program to obtain or submit data, and support other protocols, such as FTP, Telnet, and SMTP. In