PHP Tutorials

How PHP crawls remote images and saves them as an implementation Here is the source code, and its related explanations 　　 URL is the full picture address of the remote, cannot be empty, $filename is saved as the picture name By default, the image

Weave Dream Dedecms Loop universal tag loops call Arcurl tag (get link), Dedecmsarcurl In DEDECMSV5.3, the Loop Universal Loop label is provided, but the loop label can only loop out the fields in the table, and the "[field:arcurl/]" link label

CodeIgniter mkdir Create directory encountered permissions issues and workarounds, Codeignitermkdir Today when uploading files with CodeIgniter (deployed in Centos), the following error is indicated: A problem is encountered while attempting to

PHP enables display of formatted user input, PHP format You can download the files that are included with this document on this page, or you can download this document in the character processing of the file download that describes how to safely

PHP Best Practices for reading large files PHP Read large file method we generally are a line to take instead of one-time to write all the files in memory, which will cause the PHP program to die, the following for everyone to organize an example.

PHP Add watermark Instance code to image PHP Add watermark Instance code to Image: This is also a more commonly used function, with PHP to upload images watermark program, is to determine the file type to create a graph, and then copy it to the

PHP Learning Note--error Different error handling methods: Simple die () statement custom error function and error trigger error report Basic error handling: Using the Die () function if (!file_exists ("Welcome.txt")) {die ("File not Found");} else{$

Multi-column display of single database fields in PHP (One-field pagination, horizontal output), Multi-column paging Today in the project, encountered a problem is to read from the database of the same field branch display, that is, each row shows 1

A method for ordering a key value of a multidimensional array in PHP PHP multi-dimensional array sorting can be handled with the Array_multisort () function, the Array_multisort () function can be used to sort multiple arrays at once, or to sort

In-depth analysis of PHP article content page There are two main approaches to article content paging: Method one, according to the word control for paging Page by word method is easy to use, but the effect is not good. General idea: First, set the

PHP file Lock Write instance parsing, This paper describes the php file writing method in order to deal with multi-threaded writing, the code is as follows: function File_write ($file _name, $text, $mode = ' A ', $timeout =30) { $handle = fopen ($

PHP Str_replace Detailed Str_replace (PHP 4, PHP 5) Str_replace-replace all occurrences of the search string with the replacement string DescriptionMixed Str_replace (mixed $search, mixed $replace, mixed $subject[, int &$count] ) This function

Ajax authentication user name and password, AJAX authentication username 1 varuser = Form.name.value;2 varPassword = Form.password.value;3 varurl = "chkname.php?user=" +user+ "&password=" +password;//previously only known Ajax for the

Example code for uploading images in PHP The following is a PHP implementation of image upload instance code, the first page is the form page upfiles_frm.php. Code Title: Upload file: The second page is the Processing form page upfiles_add.php Code

PHP Single threaded implementation crawl Web pages in parallel This PHP tutorial will simulate the process of fetching multiple page information in parallel, the key is single-threaded parallel processing. In general, we write to crawl a number of

PHP to automatically jump to the corresponding page according to the device type method, PHP automatically jump With the popularity of mobile devices today, surfing the internet is more convenient than ever. For Android smartphones, Iphone/ipad and

PHP combined with Jqueryjcrop to achieve a picture of practical examples, We can often see some of the site has a picture cut function, perhaps you will feel this feature dazzling gorgeous, mysterious test! But today, a plug-in jquery dedicated to

thinkphp Multi-Table query-If field A is the same, add field B In a project, you need to query the USER_ID field in the table tr_product, and if the user_id is the same, add the corresponding Money field to the database as follows: Implementation

Using PHP to implement database query result cache Sometimes we want to reduce the database query to improve the performance of the program, because the data is not often changed, but it will not change for a long time, so we each connected

PHP to get Chinese phonetic code Get phonetic code for Chinese {$_q = Ord (substr ($chinese, + + $i, 1)), $_p = $_p * + $_q-65536;} $result. = ($ucfirst Ucfirst (Self::_pinyin ($_p, $data)): Self::_pinyin ($_p, $data));} Return Preg_replace ("/