PHP

Verify the validity of the ID card in PHP. /** * ID card * * @ Param string $ id * @ Return boolean */ Function is_idcard ($ id) { $ Id = strtoupper ($ id ); $ Regx = "/(^ \ d {15} $) |

PHP retrieves all links on the specified URl page // Obtain all links on the specified URL page Function get_url_href ($ url ){ $ Html = file_get_contents ($ url ); $ Dom = new DOMDocument (); @ $

PHP lists all databases in MySQL Define ('nl ', "\ n "); Define ('TB ',''); // Connecting to MySQL. $ Conn = @ mysql_connect ('localhost', 'username', 'password ') Or die (mysql_errno (). ':'.

Web proxy implemented by PHP If (! Isset ($ _ REQUEST ["url"]) exit; $ U = $ _ REQUEST ["url"]; If (substr ($ u,-0, 7 )! = "Http: //") exit; Echo file_get_contents ($ u ); /*

Convert a pdf file into an image using imagebrick $ Export _file = './pdf/demoting '; $ Save_to = './jpg/demo.jpg'; // make sure that apache has permissions to write in this folder! (Common problem) // Execute

PHP parses XML data $ Xml_string =" Ben A H2o K "; // Load the xml string using

PHP code queried by whois Use the following function to obtain the complete details of any domain name user. Function whois_query ($ domain ){ // Fix the domain name: $ Domain = strtolower (trim ($ domain ));

PHP multi-dimensional array sorting /* Function: sorts two-dimensional arrays by specified key values. $ Array = array ( 0 => array ('id' => 8, 'username' => 'phpernote '), 1 => array ('id' => 9, 'username' =>

Search Chinese characters or English letters by the first letter in PHP /** * */ Function getfirstchar ($ s0 ){ If ($ s0 [0] = 'I' | $ s [0] = 'I '){ Return "I "; } Elseif ($ s0 [0] = 'U' | $ s [0] =

Verify the PHP code of the url, email, and ip address Function is_valid_url ($ url ){ $ P1 = '/(http | https | ftp): \ // [a-z0-9-] + (. [a-z0-9-] +) * (: [0-9] + )? (\/.*)? $/I '; Return preg_match ($ p1,

PHP simple image verification code implementation // The first code generates a random image ------ code2.php // Enable session to save the generated content Session_start (); $ Table = array ( "Pic0" =>

PHP time processing functions // Mktime () Convert date and time to unix timestamp // Time () Obtains the unix timestamp of the current time. Echo date ("Y-m-d", mktime )).""; //

Php generates tag cloud based on word frequency Given a piece of text, this code analyzes the word frequency distribution of the text and generates a tag cloud /** * Tag cloud demo based on word frequency * @

Definitions of common PHP header Header ('http/1.1 200 OK '); // OK for normal access Header ('http/1.1 404 Not Found '); // notifies the browser that the page does Not exist Header ('http/1.1 301 Moved

Php bar chart /*** * @ Project Bar Graph Program * @ License GPL * @ Package * @ File GrapBar. php * @ Date 2007-4-3 * @ Version 1.0 * @ Last modified * Define the column

PHP file operations // Filetype () Obtain the object type // Obtain the file type in windows Echo filetype ("D :\\ lamp \ php5 \ php. ini ").""; // The output file indicates a normal file.

Php checks whether the browser is a mobile device This code can be used to check whether users are using mobile devices to browse the web page. $ Mobile_browser = '0 '; If (preg_match ('/(up. browser |

Object-oriented mysql database operations php class Class database { Var $ host = NULL; Var $ username = NULL; Var $ password = NULL; Var $ databaseName = NULL; Var $ link = NULL; Var $

Php numeric to Chinese character amount /** * Convert numbers to Chinese * @ Param string | integer | float $ num target number * @ Param integer $ mode [true: Amount (default), false: Normal number] *

Php dynamic processing of images and output display Php dynamically changes the image size and outputs the image. use the following address when outputting the image:Image_resize.php? Img‑image.jpg & w = 150 & h = 150 & constrain = 1W and h