PHP Tutorials

Calculates the distance between two latitude and longitude by using PHP. /* * Calculate the distance between two latitude and longitude (in meters) * */ public function getdistanceaction () { $lng 1=117.27; Longitude 1 $lat 1=31.86;

This article introduces PHP based on Redis, using the token bucket algorithm to achieve access traffic control, provide a complete algorithm description and demonstration examples, easy to learn to use. Whenever the domestic long holidays or

This article mainly introduced the thinkphp template arithmetic operation correlation function usage, combined with the simple example form analysis thinkphp about arithmetic operation and the parameter transfer the correlation skill, needs the

This article mainly introduces the PHP operation FTP class, the implementation of FTP upload, FTP download, FTP Mobile, FTP creation, etc., interested in small partners can refer to 1. Using PHP to manipulate ftp-usage 2. FTP upload Class

This article gives you a summary of 7 kinds of PHP commonly used print output functions, respectively, is Echo,print,printf,sprintf,print_r,var_dump,die, I hope to learn PHP can help you Development will need to debug code, and PHP debugging code

This article mainly introduces the PHP mathematical operation function, summarizes and analyzes the functions of the common PHP math functions, the use of methods and considerations, the need for friends can refer to the following First, the common

This article mainly introduces the method that PHP uses Stream_context_create () to simulate Post/get request, and analyzes the principle of stream_context_create simulation Post/get request in detail with the example form. The use of methods and

This article mainly introduces PHP implementation of 301 redirect jump, through the example code to let everyone better understand the redirection method, the need for small partners can refer to the next In PHP 301 Redirection Implementation

This article mainly introduces the PHP linked list operation, combined with a simple example of the definition and use of the PHP chain list, with a certain reference value, the need for friends can refer to the next Running the data structure in

Using the Ueditor Editor, the attachment default in the ueditor/php/upload/, but everyone's attachment address of the default path is not this, need to modify the Ueditor, how to do it, the following we will explain in detail below Objective When

This article is based on the PHP language using the lock implementation of the concurrency of the grab code function, the specific time period open grab code does not allow open code duplication, this article describes the very detailed, need to

This article mainly introduces the PHP request socket Interface Test example detailed, interested in the friend's reference, I hope to help you. Using PHP to read the data of the socket interface, pass the request method and request parameters

This article mainly introduced the PHP regular modifier usage, combined with the example form the PHP regular modifier's function, the use method and the related attention matters, the need friend can refer to the following This example describes

This article for everyone in detail mainly introduces the PHP AJAX implementation of non-flush attachment upload function of the specific code, with a certain reference value, interested in small partners can refer to For a website, there is a

This article mainly introduces the PHP version of the automatic acquisition address API usage, combined with instance form analysis of PHP API interface call and use skills, the need for friends can refer to the following Public platform is now

This article mainly introduces the overloading and rewriting in the PHP face object. Have a good reference value, follow the small series together to see it Overriding overriding is a representation of polymorphism between a parent class and a

Variables are a very important type of PHP, we have data through variables or constants to operate, the following to see the variable reference and variable destruction bar, the need for friends can refer to the next PHP variable reference and

This article mainly introduces the PHP programming SSO detailed introduction and simple examples of relevant information, here are three modes across subdomains single-point landing, completely cross single-point domain login, station group sharing

This article mainly introduces PHP CodeIgniter security considerations, interested in the friend's reference, I hope to be helpful to everyone. 1, HttpOnly Session must use HttpOnly otherwise may be XXS attack, use JS to get cookie session_id. To

This article mainly introduces PHP implementation of the external command on the Linux method, interested in a friend's reference, I hope to be helpful to everyone. Directory: First, the introduction of calling external commands in PHPIi. on