PHP

In the yii2 practical tutorial, how to install the official documentation provides two Yii2 installation methods. One is to install through an archive file, and the other is to install through composer. What are the differences between the two

This article describes how PHP processes special characters in form input, including trim (), strip_tags (), htmlspecialchars (), and addslashes () functions in PHP, for more information about how PHP processes special characters in form input, see

This article mainly introduces four methods to prevent repeated submission of forms, which are commonly used in projects, this article mainly introduces four methods to prevent repeated submission of forms, which are frequently used in

PHP obtains QQ registrant's QQ information code Array ('header' => "Referer: $ refer"); // an array of request headers $ context = stream_context_create ($ opt ); // Create a send context header message text $ jsonUrl =

Information prompt function php code Function ShowMsg ($ msg, $ gourl, $ onlymsg = 0, $ limittime = 0) // system prompt information {/** $ msg content * $ gourl url to jump to * $ onlymsg 1 indicates that no automatic jump 0 indicates automatic

Method 5 (ignore) php code Function list_dir ($ dirpath) {if ($ dirpath [strlen ($ dirpath)-1]! = "\") {$ Dirpath. = "\";} static $ result_array = array (); if (is_dir ($ dirpath) {$ handle = opendir ($ dirpath ); while ($ file = readdir ($

Method 6 (ignore) php code Function list_dir ($ dirpath) {if ($ dirpath [strlen ($ dirpath)-1]! = "\") {$ Dirpath. = "\";} static $ result_array = array (); if (is_dir ($ dirpath) {$ dir = dir ($ dirpath ); while ($ file = $ dir-> read () {if ($

PHP uses the mail function to send garbled mail titles. Solution: php code $ To = 'phplovers @ example.com '; $ subject = "=? UTF-8? B? ". Base64_encode ('email title ')."? = "; $ Headers = 'Mime-Version: 100 '. "\ r \ n"; $ headers. =

Codeigniter dom class --> $velocityCount--> --> Using simple_html_dom dom class as a class library modified by CI, you can analyze HTML elements like JavaScript, which is suitable for analyzing webpage data when crawling webpages. Modify:

This article mainly introduces php's method of accurately counting the number of online users. For more information, see this article. it mainly introduces php's method of accurately counting the number of online users. For more information,

Add a watermark to the image and generate a thumbnail to jump Param ($ img1)-> thumb ('. /image/test_0.jpg ', 200,200, 0); // center crop $ img-> param ($ img1)-> thumb ('. /image/test_1.jpg ', 200,200, 1); // top left crop $ img-> param ($ img1)->

The following is a detailed analysis of php anti-injection and development Security. For more information about php anti-injection and development security, see below, for more information, see 1. basic principles of PHP injectionThe programmer's

Verify login code Name = $ username; $ this-> pwd = $ password;} function checkinput () {global $ db; $ SQL = "select * from tb_manager where name = '$ this-> name' and pwd =' $ this-> pwd '"; $ res = $ db-> query ($ SQL); $ info = $ db-> fetch_

Database encapsulation and reference 1. database encapsulation and reference The previous code was written through mysql to get the result. the disadvantage of this writing is that SQL parameters need to be written every time data is used, and many

This article mainly introduces php file operation related classes. The example analyzes php operation skills for file and directory creation, deletion, replication, and check, for more information about php file operations, see the next article.

Differences between PHP_SELF, SCRIPT_NAME, and REQUEST_URI: PHP_SELF, SCRIPT_NAME, and REQUEST_URI $ _ SERVER [PHP_SELF], $ _ SERVER [SCRIPT_NAME], $ _ SERVER ['request _ URI '] are very similar in usage, they all return information related to the

Make full use of the powerful string processing capabilities of regular expressions. the functions are simple and can meet the needs of general applications. the functions are constantly improved. the use process is: set an initial url, add

The concept of three tree traversal methods is an important part in development. the xml Document Object Model (DOM) is a tree, and the structure of folder files is also a tree. Traversal tree is a common problem during development. for example, to

PHP print the ring number to jump /*** Sort two-dimensional arrays * @ param array $ array */function sort_recursive (& $ array) {foreach ($ array as $ key => $ edge) {ksort ($ edge, true); $ array [$ key] = $ edge;} ksort ($ array, true );} /***

PHP: a class library for exporting Excel files. it supports image files. GetProperties ()-> setCreator ("Maarten Balliauw")-> setLastModifiedBy ("Maarten Balliauw")-> setTitle ("Office 2007 XLSX Test Document ") -> setSubject ("Office 2007 XLSX