PHP

1. Use the Ip2long () and LONG2IP () functions to convert the IP address into an integral type stored in the database. This approach minimizes storage space to nearly One-fourth (4 bytes of 15 bytes of char (15)), calculating whether a particular

function Preg_substr ($start, $end, $STR)// Regular intercepting function       {          $temp = Preg_split ( $start, $str);          $content = Preg_split ($end, $temp [1]);           return $content [0];      }    Function Str_substr

This article describes the PHP source code analysis of the DZX1.5 string truncation function cutstr usage. Share to everyone for your reference. The specific analysis is as follows: ? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

I believe we all know how to use PHP to add text to the image watermark, but if the watermark effect for the picture? What should I do? Don't worry, the following is the decomposition for you. I also recently used this function, so go to Baidu to

1 Create a new database in MySQL, name it (customizable), create a new table, name News (because it's a press release, take a good name, you can customize it), and then create the names of these fields: ID (auto increment, which is key, type: INT)

This article illustrates the use of get_defined_constants functions in PHP. Share to everyone for your reference. The specific analysis is as follows: Get_defined_constants (php 4 > = 4.1.0, php 5) Get_defined_constants-Returns an associative

This article mainly introduces the PHP input and output stream learning notes, PHP input and output streams are accessed through php://, which allows access to PHP's input and output streams, standard input and error descriptors, temporary file

PHP encryption and decryption function sharing, one is discuz! authcode encryption function (with detailed decomposition), one is the Encrypt () function. Need to use PHP to encrypt specific information, that is, through the encryption algorithm to

This example can be practiced on IMAP functions But if you really want to write webmail, there's more to consider than that ... Lone Wolf Login.php3 if (! $PHP _auth_user) { Header ("Www-authenticate:basic realm=" "Mail customer Check"); Header

Program 1. Recursive method Recursion refers to an explicit invocation of itself in a function. The feature of the tree structure by recursion is that it is faster to write data and slower to display (especially in the case of branches/levels of

Tutorials | Quick PHP is a server-side scripting language for creating dynamic Web pages. Like ASP and ColdFusion, users can mix PHP and HTML to write Web pages, and when a visitor browses to the page, the server first processes the PHP commands in

Most of the sites will take into account the interaction between users. At this time, use the function of the message board, can let the user stay to this one visit, or is some and the interactive information of the website.In the design, it can be

When configuring PHP5 to use MySQL as a database, many people think that as long as the php.ini to add Extension=php_mysql.dll, the instructions can not understand why many articles are recommended to add EXTENSION=PHP_ Mysqli.dll of the order; Just

It will show how external entities point to the processor to contain and parse other documents, how to handle PIs, and the trustworthiness of a code that contains PIs. The XML documents (Xmltest.xml and Xmltest2.xml) that can be used by the example

if (!) ( $fp = fopen ($this->file, "R")){Die ("Could not read $this->file"),}Parse datawhile ($xml = Fread ($fp, 4096)){if (!xml_parse ($this->xp, $xml, feof ($FP)){Die ("XML parser Error:".)Xml_error_string (Xml_get_error_code

This is the arrays with the each array element representing an//each outer array element was itself an associative arrayWith keys ("title", "link", "description")$items = Array (),Opening Tag Handlerfunction Elementbegin ($parser, $name, $attributes)

Judging from the current network security, the most attention and contact with the most Web page vulnerability should be ASP, in this respect, small bamboo is an expert, I have no say. However, in PHP, there are also serious security issues, but

Grassroots PHP Language challenges the object is Java,. Net such a big shot.Zeev The 30-year-old Israeli lad does not look like a powerful figure, but the PHP language he initiates has become a legend in the internet era. The latest news is that Sun

File Structure ||――images|――include|――parameter|――config|――function|――index Images store picture files, include in the system is to refer to the file, generally in the parameter storage parameters file, config file in the configuration, function in

PHP inherits from an old project called Php/fi. Php/fi was created by Rasmus Lerdorf in 1995, initially as a simple Perl script to track the information of people visiting his home page. It named this set of scripts "Personal home Page Tools." As