PHP Tutorials

Description Array Array_flip (array trans) Array_flip () returns a reversed array, such as the key name in trans becomes a value, and the value in trans is the key name. Note that the value in trans needs to be able to be a valid key name, such as

Operating system: Windows 7 Ultimate Web server: IIS 6.1 (Build 7600). Database: MySql5.0.67 PHP Version: 5.2.13 I was also worried that Win7 might not be compatible, and it turned out to be a bit of a problem. First, install MySQL database MySQL

* Ini_get (): Gets the option value of the configuration file This function believes that many people have, that is, to get the value of an option in the configuration file, if the value of True returns 1, if the value of False returns 0, the

EOF is a very important concept, and almost every major programming language provides built-in functions to verify that the parser has reached the file EOF. In PHP, this function is feof (). The feof () function is used to determine whether the end

Compare two strings in a case-sensitive manner The Strcmp () function compares a binary security to two strings and is case-sensitive. The form is: int strcmp (string str1, String str2) Depending on the result of the comparison, one of the

Copy the Code code as follows: function ($file _name, $pass _type=array (' jpg ', ' jpeg ', ' gif ', ' BMP ', ' png ')) { $yx _file = $pass _type; $KZM = substr (STRRCHR ($file _name, "."), 1); $is _img = In_array (Strtolower ($KZM), $yx _file); if (

The key of an array of PHP can be either a string type or an integer type. If key is a float type, it is automatically converted to an integer type. If the maximum value of an index for a key,integer type is not specified for a value, the new key

Copy CodeThe code is as follows: Nationwide, judging whether the $request_uri contains HTML if (!strpos ($_server["Request_uri"], ". html")) { $page = "http://qq.ip138.com/weather/"; $html = file_get_contents ($page, ' R '); $pattern = "/ National

Take a look at the following example: Copy CodeThe code is as follows: function Test () { $w 3sky = 0; echo $w 3sky; $w 3sky++; } ?> Each call to this function sets the value of $w 3sky to 0 and outputs "0". Adding a variable to the $w 3sky++

Addcslashes-adds a backslash escape character for some characters inside a string addslashes-characters inside a string are escaped in the specified manner bin2hex-converts binary data to hexadecimal notation alias function for Chop-rtrim

PHP Read radio button Radio value Copy CodeThe code is as follows: PHP read radio button Radio value if ($_post) { Echo ' You have chosen single choice ', $_post[' RadioGroup1 ']; Because the properties of a radio button can

In this article we are going to provide you with two ways to iterate over object properties and illustrate the application of traversal object properties in PHP. You can see that private variables and static variables are not available, and can only

It enables PHP to communicate seamlessly with the following technologies: (1) Flash and Flex Remoting (2) JavaScript JSON and Ajax JSON (3) XML and XML-RPC What is RPCRemote Program invocation (RPC, remote Procedure call) is a way for clients to

1. In the case of file_get_contents instead of file, fopen, feof, Fgets and other series of methods, try to use file_get_contents, because he is much more efficient! But pay attention to file_get_ Contents PHP version problem when opening a URL file;

File structure |――images |――include |――parameter |――config |――function |――index Images storage image files, include is the system is to refer to the file, generally in the parameter stored in the parameter file, config in the configuration file,

Implementation principle: is to sort the ID pair by the ORDER by id DESC or the ORDER by ID ASC, and then determine the article that is less than the current id> or the same column as the current article ID. The SQL statements for the instance are

Upimages.class.php PHP Upload Class Copy CodeThe code is as follows: Class Upimages { var $annexFolder = "Upload";//Attachment storage point, default: Annex var $smallFolder = "small";//thumbnail storage path, note: Must be placed under the

1. Simple anti-theft chain Copy CodeThe code is as follows: $ADMIN [Defaulturl] = "http://jb51.net/404.htm";//Address returned by hotlinking $okaysites = Array ("http://jb51.net/", "http://www.jb51.net"); White List $ADMIN [Url_1] =

Mysql_real_escape_string () So the SQL statement has a similar wording: "SELECT * from CDR where src =". $userId; Change to $userId =mysql_real_escape_string ($userId) All printed statements, such as Echo,print, should be filtered using

Note: '//+ ' indicates additional notes for me Class Typelink { var $typeDir; var $dsql; var $TypeID; + Category ID var $baseDir; + Site root URL var $modDir; + Template Catalog var $indexUrl; + Home Link Address var $indexName; + Home Link Name var