PHP

A simple php custom exception class /** * Custom exception handling class */ Class MyException extends Exception { // Redefine the constructor to make the message a required attribute

Solution to the Notice: Undefinedindex error prompt in php If (array_key_exists ('strue ', $ _ POST )) { If ($ _ POST ['strue']) { $ Istrue = $ _ POST ['strue']; } } Else { $ Istrue = '';

Two methods for php to automatically generate a new password /* * Php automatically generates a new password user-defined function Applicable environment: PHP5.2.x/mysql 5.0.x Code author: xujiajay

Php array functions: array_map and array_multisort multi-dimensional array sorting instances Array_sort ($ arrFile, 1, 1); // Sort by name field Array_sort ($ arrFile, 3, 1); // Sort by size field /*

Automatically generate the php code for the document summary // PHP 4.3 or above needed Define ("BRIEF_LENGTH", 800); // Word amount of the Briefing of an Article Function Generate_Brief ($ text ){

A simple example of generating a word file using php /** Php generates word files Link: bbs.it-home.org */ $ Word = new COM ("word. application") or die ("The Word program cannot be started!

Php array function array_multisort () usage $ Arr1 = array ('10', 11,100,100, 'A '); $ Arr2 = array (1, 2, 3, '2', 5 ); Array_multisort ($ arr1, $ arr2 ); ?> Result: $ arr1 Array ([0] => 10 [1] =>

Php array sorting example (without built-in functions) Function arraysort ($ data, $ order = 'asc '){ // Asc ascending desc descending $ Temp = array (); $ Count = count ($ data ); If ($ count

Example of generating word in php // Generate word Header ("Content-Type: application/msword "); Header ("Content-Disposition: attachment; filename = \" file.doc \""); ?>

Php automatically generates the calendar code /** Php automatically generates a calendar Link: bbs.it-home.org 2013-3-7 */ Function calendar ($ MM, $ YYYY ){ If ($ MM = "") $ MM = date ("m ");

Php digest generation function (custom, no garbled code) /** Php abstract generation function Link: http://bbs.it-home.org 2013-3-7 */ Function cutstr ($ string, $ length, $ charset, $ dot) {//

Code for uploading images and creating thumbnails in the phpGD Library Image Upload -bbs.it-home.org File upload (only jpg images can be uploaded) 2. process

Php code for uploading images /* * Parameter description * $ Max_file_size: size limit of the uploaded file, in bytes * $ Destination_folder: File Upload path * $ Watermark: whether to add

Example of multi-dimensional array sorting using phparray_multisort $ Arr1 = array (1, 9, 5 ); $ Arr2 = array (6, 2, 4 ); Array_multisort ($ arr1, $ arr2 ); Print_r ($ arr1); // The order is, 9. Print_r (

Php can be used to obtain the real IP address of the Internet. Function get_onlineip (){ $ Ch = curl_init ('http: // www.ip138.com/ip2city.asp '); Curl_setopt ($ ch, CURLOPT_RETURNTRANSFER, true ); $ A

PhpExcel Chinese help Manual (Knowledge Point) $ ObjPHPExcel-> getActiveSheet ()-> setCellValue ('A1', 'string '); $ ObjPHPExcel-> getActiveSheet ()-> setCellValue ('A2 ', 12 ); $ ObjPHPExcel-> getActiveSheet ()->

Code for converting php xml to an array // Xml to array, including the root key, ignore empty elements and attributes, there are still major errors Function xml_to_array ($ xml) { $ Reg = "/] *?>

Php Data Backup: single table backup, full table backup, import to database Class Db { Var $ conn; Function Db ($ host = "localhost", $ user = "root", $ pass = "root", $ db = "test ") {

Phpfile_get_contents function code for capturing page information $ Url = "http://bbs.55bbs.com "; $ Contents = @ file_get_contents ($ url ); // Preg_match_all ("/(.*?) /is ", $ contents, $ content );

Phpfile_get_contents function proxy to obtain code for remote pages $ Url = "http://bbs.it-home.org /"; $ Ctx = stream_context_create (array ( 'Http' => array ('timeout' => 5, 'Proxy' => 'tcp: // 60.175