PHP

Personal notes ... For reference, if wrong please point out, thank you The code is as follows Copy Code /******************************************* Class object Instance description (normal Class) ***********************

1.cookie&session Introduction and differences The cookie data is saved on the client and the session data is saved on the server side. Simply put, when you log on to a Web site, if the Web server side is using session, then all the data is stored

The scope of the variables in PHP is described in the PHP manual In a user-defined function, a local function range is introduced. Any variable that is used inside a function is limited by default to the scope of the local function. For example:

Magic method is a two underline "__" The beginning, has a special role of some methods, can be seen as PHP's "grammatical sugar." Grammatical sugars are grammars that do not add new functionality to computer languages but are more "sweet" to humans.

PHP server-side default session storage is the way in which files are stored, and on WINDOWS, PHP's default sessions server file is stored under C:/windows/temp, *nix under the default storage in/TMP, If concurrent access is large or the session is

Pcntl the extensions that the PHP implementation multi process must install, the extended installation steps are now written below. One or two kinds of installation methods 1, recompile PHP's back configrue hint plus? enable-pcntl.2, do not

Gets the specified year date into the timestamp: PHP timestamp function gets the UNIX timestamp strtotime of the specified date (' 2012-12-7 ') Examples are as follows: The code is as follows Copy Code

0x00 Preface Today we'll discuss writing a backdoor based on the PHP extension library. Typically, most intruders leave a custom code block back door in the script. Of course, these things can easily be found through static or dynamic analysis of

Use regular filter HTML tags The code is as follows Copy Code $html _body = "www.111cn.net";Preg_replace ("/(]*>)/e ","' \1 '. Strtoupper (' \2 ')." \3 ' ",$html _body); Using PHP tutorial with function

Author: Lao Wang Getter/setter usage is common in the Java community, such as in entity beans or DTO, which is sometimes necessary and sometimes tedious. The PHP community is generally crawling along the steps of the Java community, so many people

The source code for PHP files is plaintext, which is not suitable for some commercial purposes. So consider using encryption to protect the source code. It's really impatient to wait for Zend out of the compiler, and compilation and encryption are

*/Require_once ('Common/email. class. Php '); The code is as follows:Copy code // Here in the smiley_face@126.com mailbox as an example, the user needs to modify$ Smtps tutorial erver = "smtp.126.com"; // smtp server$ Smtpserverport = 25; //

PHP Smarty template-what is Smarty?Smarty is a PHP template engine written using PHP. It is one of the most famous PHP template engines in the industry. It points Smarty of phpApart from logical code and external content, it provides an

Bool array_multisort (array ar1 [, mixed arg [, mixed... [, array...])If the call succeeds, TRUE is returned. If the call fails, FALSE is returned.Array_multisort () can be used to sort multiple arrays at a time, or to sort multi-dimensional arrays

This article does not discuss session or cookie. Many websites now talk about cookie-based session. The advantages and disadvantages of cookie-based session are discussed below:Advantages:1. Reduce the pressure on the server. For example, PHP

Use WEB servers to implement PHP multithreading.Of course, anyone who has a deep understanding of multithreading knows that multithreading implemented through WEB servers can only imitate some of the effects of multithreading, not in the true

Flock-lightweight consultation file lockingFlock () function prototypeBool flock (int handle, int operation [, int & wouldblock])PHP supports a lightweight method of locking all files in consultation (that is, all access programs must be locked in

For php exceptions, you can get the error stack through getTraceAsString.The error should be as follows: The code is as follows:Copy code Function x ()$ X = debug_backtrace ();// Remove stack of this functionArray_shift ($ x );$ I = 0;$ Xstr = ''

Calculate the average value of an array. Calculate the average value of a two-dimensional array. The code is as follows:Copy code $ Array = array (Array ('class' => 'A', 'value' => 3 ),Array ('class' => 'A', 'value' => 4 ),Array ('class' => 'B',

Php exeel. class. php file The code is as follows:Copy code /*** Simple excel generating from PHP5 ** @ Package Utilities* @ License http://www.opensource.org/licenses/mit-license.php* @ Author Oliver Schwarz * @ Version 1.0*//*** Generating