PHP

Analyze the usage of require and include using instances in depth. In php, the roles of include and require are confusing. The following is a classic example to illustrate their differences. When we often access a database, we can In php, the roles

Use the date and time functions in PHP. (1) date usage: date (format, [time]); if there is no time parameter, the current time is used. the format is a string. The following characters have special meanings: U is replaced (1) dateUsage:Date (format,

The PHP_Compat package of Pear. Pear's PHP_Compat is an interesting package. It provides some php5 proprietary functions that can be used in php4, such as file_put_contents, array_combine, str_split .......... in this way Pear's PHP_Compat is an

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

PHP mail is a simple class. Sm. php? Phpclasssmtp {* PublicVariables * var $ smtp_port; var $ time_out; var $ host_name; var $ log_file; var $ relay_host; var $ debug; var $ auth; var $ user; var $ pass; * Priva Sm. php Class smtp{/* Public

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

The question of string character segmentation mixed between Chinese and English numbers. For the sake of using the SMS platform, each text message has a limit on the number of words, and the server of the SMS platform does not analyze it on its own.

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

The extract () function is useful in PHP. Recently, when reading a cool man's code, I saw a very useful function: extract (). its main function is to expand the array and use the key name as the variable name, the element value is the variable value.

Php enables the current number of online users. Principle: calculate the number of online users based on different IP addresses. Implementation Method: you can use a database or text. Here I use text implementation .? Php *** @ Date2010.04.07

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:

XML is used in PHP. Summary XML stands for ExtensibleMarkupLanguage (abbreviation of eXtensibleMarkupLanguage, which is an extensible markup language ). XML is a set of rules for defining semantic tags, which will be summarized in the document XML

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 dangerous functions. During PHP compilation, PHP parsing support in CLI mode must not be compiled unless otherwise required. You can use-disable-CLI during compilation. Once the CLI mode P is compiled During PHP compilation, PHP parsing support

Solutions for php connection to mysql garbled characters. Many friends may encounter garbled characters when they connect to the database for reading or writing at the early stage of learning PHP, today, I am here to tell you the simplest way to

Php is a very powerful PHP Upload class. Uploading. class. php Upload class? PhpclassUpImages {var $ export folderupload; attachment storage point. default value: export var $ smallFoldersmall; thumbnail storage path. note: required. Uploading.

Step 5 describes how to implement the php file upload function. 1. the form part allows users to upload files. An Upload attribute must be added to the HTML form Declaration: The method of the enctypemultipartform-data form must be the POST form

Describes the built-in PHP function mkdir (). The mkdir function has two parameters: directory path and access permission example mkdir (tmptest, 0777). The permission code to be obtained is not necessarily set above, the current system umask will

Tips for configuring PHP. ini in php. 1. find max_execution_time30 for the PHP script execution time. This option sets the maximum execution time of the PHP program. if a PHP script is requested, the PHP script does not exist within

External media evaluation: 11 tips for improving programs. There are many reasons to explain why we should write clear and readable programs. The most important thing is that you only write the program once, but will read it countless times in the