PHP

Optimize the use of mysql to store sessions. I have written two articles, "Custom SESSION (2) -- database storage" and "Why I don't use session", but I found that there were problems later. The former has almost nothing to deal with in reality. I

Some predefined constants of PDO_MYSQL. PDO_MYSQL is a mysql extension of the PHPDataObjects (PDO) interface. Take a closer look at the php Manual. In fact, some interesting parameters are available, such as PDO: MYSQL_ATTR_INIT_COMM. PDO_MYSQL is a

Use md5 with an invincible cryp password. I like SQL injection. I have checked many websites before and after. ASPPHPJSP found that the MD5 encryption algorithm is basically used. MD5 cannot be broken, but MD5 cannot be reversed. However, I like SQL

Generate a static html file class based on the template file. Generally, we use PHP to output an html file, always using $ headhead ...... A long string like head. This class provides a simple method to output html files using PHP. This

Several mysql statements commonly used in PHP. Several mysql statements commonly used in PHP show the database or table: showdatabases; then you can usedatabase_name; showtables; change the table name: altertable_namerenamenew_t; add several mysql

Three methods for directly reading database information. The function of this code is to connect to a mysql server whose url address is localhost and Port is 3306. The account of the mysql server is root and the password is 9999. The mysql server

PHP disables page cache output. Magicquotes is a common issue for PHPer. I accidentally saw an article today, combined with PHPManual and his reply, and made a simple summary here. In short For Magic quotes, PHPer is a common issue. I accidentally

Several common unempty, grouping, and debugging array functions. Dump () uses arrays in array format to debug functiondump ($ vars, $ label, $ returnfalse) {if (ini_get (html_errors) {$ contentpre; if ($ label !) {$ Content. dump () uses arrays in

Simple conversion in PHP UTF8 encoding. After searching for the UTF8 character set on the Internet for a long time, I have not found the simplified conversion in the UTF8 character set. maybe someone has written such code on the Internet. I once

PHP batch deletion tips. First, understand the SQL statement $ SQLdeletefrom 'php100' whereidin (, 4). The form is probably formactionmethodpostinputnameID_Dele [] typecheckboxidID_Dele [] value1inputn First, you must understand SQL statements.

PDO Chinese garbled solution. PDO class, found that there will be UTF-8 garbled problem, the following solution: Method 1: PDO ::__ construct ($ dsn, $ user, $ pass, array (PDO :: MYSQL_ATTR_INIT_COMMANDSETNAMESutf8;); Method 2 PDO class, found that

Three methods for connecting php to the Access database. Although it is not a class, let's put it here first. recently I want to change an asp website to php, but the space does not support the mysql database, so I have to use the access database,

PHP uses the cURl library function to obtain detailed information about the webpage. Recently, I used the cURl library function in a small project. I found some information from the Internet and summarized it by referring to a foreign Blog and

IE has been using irefoxPHP in the drama Xinjiang. why are there cookies? The Cookie has been rejected? Setcookie (username, username, time () + 1000, php100); why? Setcookie? Br/> setcookie ("username", "username", time () + 1000, "/php100 /"); Why?

We recommend a PHP image library JpGraph with super powerful functions. Background knowledge JpGraph: In the past, you must master complex and abstract drawing functions when using PHP for graph construction, or use the classes of bar charts and pie

Php obtains the flv video time. Php gets flv time! Source code! You can use it! Super simple .? PhpfunctionBigEndian2Int ($ byte_word, $ signedfalse) {$ int_value0; $ byte_wordlenstrlen ($ byte_word php gets flv time! Source code! You can use it!

Perfect solution: failedtoopenstream: HTTPrequestfailed !. When you use the file_get_contents method that comes with php5 to obtain remote files, sometimes file_get_contents (): failedtoopenstream: HTTPrequestfailed will appear! This warning message.

Php code conversion function. Generally, iconv is used. the mb_convert_encoding function is used only when the encoding of the original encoding cannot be determined or The iconv cannot be normally displayed after conversion. Iconv function syntax:

PHP programming language: 10 things you may not know. Small editors have previously reported some tips that PHP developers are easy to ignore. apart from some technical methods, many nuances are also easy for programmers to ignore, the following is

PHP regular expressions are commonly used. PHP regular expression definition: a syntax rule used to describe character arrangement and matching modes. It is mainly used for string mode segmentation, matching, search and replacement operations. PHP