destructor and the garbage collection mechanism in PHP _php example

destructor: executes when an object becomes garbage or when an object is explicitly destroyed. GC (Garbage Collector) In PHP, when no variable points to this object, the object becomes garbage. PHP will destroy it in memory. This is the PHP gc

PHP uses the header function, PHP_AUTH_PW and php_auth_user do user authentication _php techniques

This article illustrates how PHP uses the header function, PHP_AUTH_PW and php_auth_user to do user authentication. Share to everyone for your reference, specific as follows: In PHP, you can use the header function to do some interesting things,

The factory pattern _php technique of PHP design pattern

I often use MySQL database, so the program only wrote MySQL database operation class. I hope you master the other class to write all, it is best to send a copy to me. db_mysql.php inherit the db.php interface and implement various methods of

PHP Unlimited cache class extension _php tips

Copy Code code as follows: /** * Function: According to the conditions of the classification of the cache to reduce the use of categories * Date Created: Thu May 15:55:11 CST 2007 * Last update: * Author: Sanshi */ Class Treecache {

PHP uses the Mysqli class library to achieve the perfect paging effect method _php skill

This article illustrates how PHP uses the Mysqli class library to achieve a perfect paging effect. Share to everyone for your reference, specific as follows: This article is based on my last article "PHP Database operations based on MYSQLI database

Do you think PHP will continue to perform after deep analysis of the browser exit _php instance

Premise: Here is the typical LNMP structure, the NGINX+PHP-FPM model If I have a PHP program executing very slowly, even in the Code sleep (), and then the browser connected to the service, will start a php-fpm process, but this time, if the

PHP-FPM to achieve performance optimization _php skills

Brief introduction: PHP-FPM is a PHP FastCGI manager, General Nginx run PHP program will be thrown to the PHP program php-fpm to resolve. All right, that's it! PHP 5.4 began to integrate the PHP-FPM, that is, when compiling PHP, as long as--ENABLE-

The definition and usage of PHP htmlentities () function _php instance

The PHP htmlentities () function converts characters to HTML entities, this article introduces the PHP htmlentities () function Basic use method and the example introduction, needs the code agriculture may refer to. Definitions and usage The

PHP Directory operation Instance Code _php instance

Copy Code code as follows: /** * Listdir */ Header ("Content-type:text/html;charset=utf-8"); $dirname = "./final/factapplication"; function Listdir ($dirname) {$ds = Opendir ($dirname);while (false!== ($file = Readdir ($ds))) {$path = $

PHP anonymous function and use clause usage instance _php skill

This example describes the PHP anonymous function and use clause usage. Share to everyone for your reference, specific as follows: The following method outputs the Hello World $param 1 and $param2 are closed-pack variables function test ()

Introduction to FileSystem File system functions in PHP and examples _php examples

basename-returns the file name part of the pathdirname-returns the directory part of the path Copy Code code as follows: String basename (String $path [, String $suffix]) String DirName (String $path) Example: Copy

How to solve PHP using mysql_query query super-large result set hyper-memory problem _php instance

Using mysql_query to query for oversized result sets can cause fatal errors that exceed the memory limit, because Mysql_query uses a way to query all the results and then cache all the result sets in memory. MySQL query also provides another way to

PHP Create Desktop Shortcuts implementation method _php tips

In the first case: PHP Generate Web Desktop Shortcuts Will introduce the use of PHP to generate Web desktop shortcuts to the code, and add icons and solve the different browser to save the garbled problem. When we visit the site, if the content

PHP Implementation Linux Command tail-f_php instance

The tail command writes the file to the standard output from the specified point. Using the-f option of the tail command makes it easy to refer to the changing log file, Tail-f filename will display the tail contents of the filename on the screen,

PHP simulated Post submit data method Rollup _php instance

Using PHP to simulate post values although not much is used in daily life, it is often used in some situations. The following cloud-Habitat community Small series for everyone to organize three kinds of PHP analog post pass the value of the method,

PHP uses the TRIM function to remove a string of left and right spaces and special character instances _php tips

The example in this article describes how PHP uses the Trim function to remove the left and right spaces and special characters of a string. Share to everyone for your reference, specific as follows: the trim () function in PHP is defined as

PHP generates XML simple instance code _php tips

When dealing with xml-based applications, developers often need to build XML-encoded data structures. For example, the XML state template that is based on user input in the Web, the server requests XML statements, and customer responses based on the

PHP input Stream Php://input example explain _php skills

For the php://input introduction, the PHP official manual document has a very clear overview of it in a word. "Php://input allows to read raw POST data. It is a less memory intensive alternative to$http_raw_post_data and does no need any special php.

Improve PHP programming efficiency introduce caching mechanism to improve performance _php skills

Because PHP searches for variables in a string enclosed in double quotes, single quotes are not, note: only echo can do this, it is a "function" that can take multiple strings as arguments: ECHO is the language structure, not the real function, so

PHP submit Post Array parameter example analysis _php tips

This article analyzes the usage of the PHP submit post array parameters. Share to everyone for your reference, specific as follows: First in PHP to send the array from the page to server A, to the same name in multiple spaces on the page, and for

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