PHP

Php calculates the distance between two coordinates (longitude and latitude) Php calculates the distance between two coordinates (longitude and latitude). The Returned result is meter or kilometer. Function distance ($ lat1, $

Php uses GD to create a thumbnail that maintains the aspect ratio /** * Create a thumbnail image from $ inputFileName no taller or wider * $ MaxSize. Returns the new image resource or false on error. * Author:

Php does not break the word truncation substring Php does not break the word truncation substring /* Snippet (phrase, [max length], [phrase tail]) Snippetgreedy (phrase, [max length before next space], [phrase tail])

PHP watermarks images in different locations based on the Color Field PHP watermarks images in different locations based on the Color Field Function add_wm ($ nmw_water, $ src_file, $ output_file, $ x, $ y ){ If (file_exists

Php bubble sorting code Function bubbleSort ($ items ){ $ Size = count ($ items ); For ($ I = 0; $ I For ($ j = 0; $ j If ($ items [$ j + 1] ArraySwap ($ items, $ j, $ j + 1 ); }

Encapsulation of PHP single file upload function // Encapsulation of a single file upload function // File Upload principle: upload the client files to the server, and then move the temporary files on the server to

Common JavaScript regular expressions (Mailbox, mobile phone number, QQ number, etc) Verify mobile phone number function isMobile(phone){ // You can modify the prefix according to the number segment. var reValue = /^(0|

Functions in php that can return multiple values In python and golang, there is a function that returns multiple values at the same time. In fact, php can also be used, but it is a little more troublesome than python and golang. Below

MySQL addition, deletion, modification, and query tools PHP class In the past, the development project did not use a framework. it is a useful mysql tool class for object-oriented development. Header ("content-

Best Practice series-talk about PHP components, frameworks, and Composer 1. what isComponentsA component is a set of packaged code and a series of related classes, interfaces, and Trait. it helps us solve a specific problem in PHP

PHP web page capture Header ('content-Type: text/html; charset = utf-8 '); /** * A class used to capture images */ Class download_image { Public $ _ save_path = NULL; // save path

Remove BOM documents from PHP // Remove the UTF-8 boms // By magicbug at gmail dot com If (isset ($ _ GET ['dir']) {// Directory of the file to be removed. if no parameter is set, the current

What is the Python regular expression method for matching Chinese characters? If you search for Python regular expressions on the Internet, there will be tens of millions of results. it seems that you have a lot of learning needs for

The cell phones of network administrators are amazing: One-click fault reporting and ticket O & m it systems The cell phones of network administrators are amazing: One-click fault reporting and ticket O & m it systemsIT operation and

Php uses the GD library to generate thumbnails Header ("content-type: text/html; charset = gbk "); Ini_set ("date. timezone", "Asia/chong "); // Determine whether the file is empty

Generate verification code Require_once ('string. func. php '); Function verifyImage ($ type = 1, $ length = 4, $ pixel = 0, $ line = 0, $ sess_name = "verify "){

Upload images without refreshing Php does not need to accept new files Function upload_pic ($ path ){ $ Filename = 'userfile '; $ Pic_path = ''; $ Picname = $ _ FILES [$ filename] ['name']; $ Picsize = $ _

Php parsing expression Php parsing expression $ Face = array ("Smile" => "0_smile .gif"), array ("grin" => "grin .gif "), array ("color" => "2_color .gif"), array ("daze" => "3_daze .gif"), array ("satisfied" => "4_deyi

Php comparison of two string lengths This example describes how php compares two string lengths. Share it with you for your reference. The specific implementation method is as follows:This code calculates the length of two strings and

Mysql_get_server_info () function The mysql_get_server_info () function is a built-in php system function.The mysql_get_server_info () function returns information about the MySQL server.If the operation succeeds, the MySQL server