PHP Tutorials

PHP curl_multi_exec () crawl Web content concurrently PHP is a single-threaded language, so in some way the rate is not as Java this multithreaded language, after all, the main aspect is not here. But PHP also has its own multithreading (in fact,

Adaptive images is a PHP-written tool that can transfer images to small mobile devices. Application Embedded solutions automatically create, capture, and transfer pictures based on the device screen size without the need for additional changes to

Prototype mode of PHP design mode "Prototype mode is actually the creation of another customizable object from one object and no need to know the details of any creation." ” Let's take a look at the basic prototype pattern code. _id = $id; }

There are two known time stamps. Determine if the timestamp is included in the Saturday Sunday. /*** determine if there is a weekend in the time period. * @author * @version October 10, 2015 17:36:27* @param begin start Time * @param last end time

Determine if a string is a utf-8 or gb2312 function /*** determines whether the string is Utf-8 or gb2312* @param unknown $str * @param string $default * @return string*/function utf8_gb2312 ($str, $defaul t = ' gb2312 ') { $str = preg_replace ("/

Collect PHP using regular filters to filter various tags, spaces, line breaks code: $str =preg_replace ("/\s+/", "", $str); Filter Excess Return$str =preg_replace ("/$str =preg_replace ("//si", "", $str); Comments $str =preg_replace ("//si "," ",

PHP each and list usage, combined with instance form analysis of each and list functions of the use of skills, and examples of each combined with the list function to implement the array traversal skills Specific as follows: Usage of 1.each Look at

Give a string, how to determine what it is encoded? PHP has a function: mb_detect_encoding. But this thing needs to have a mb_string library, not everywhere can use. function Is_utf8 ($string) {return Preg_match ('%^ (?: [\x09\x0a\x0d\x20-\x7e] #

PHP implementation of probabilistic random draw code Use PHP to implement probabilistic PHP random draw codes based on the weights of the prizes 1. Initial data: The greater the weight, the higher the chance of extraction.[Prize 1, Weight 5],

In several cases, we will need to develop PHP extensions: 1, the PHP itself can not access the resources or calls, 2, through the expansion of the way to achieve performance and efficiency considerations, 3. It will be better to implement with C 4.

Recently on the Internet read a lot of PHP array paging posts, feel some good! So share and learn. Not all of our data is stored in a database, and many times it is organized in arrays. So getting the array data, paging is a more common programming

On the PHP server, when a page calls the Session_Start () function, this page does 3 things 1, created a sess_############## #的文本文件 (below c:\window\tem\ directory) on the server side 2, delete the sess_######### #文本文件 (not spoken here) 3, the HTTP

PHP Read access DB instance code Open ($MM _conn_string);//link opens data source $query= "SELECT * from DM ORDER by ID ASC"; $RS->open ($query, $Conn, 1, 1);//EXECUTE statement, Returns the data set echo "Total:". $RS->recordcount. " Record

PHP Bulk Purge BOM header for Utf-8 files "; }else{$dirname = $basedir. " /". $file; Checkdir ($dirname); }}} closedir ($DH); }} function Checkbom ($filename) {global $auto; $contents = file_get_contents ($filename); $charset

Questions about the PHP session changing every time it is refreshed This morning found that the session saved problems, can not pass the session. Read PHP files are not any exception, and no error. Found on the Internet some articles, said whether

PHP implementation bidirectional queue algorithm code How PHP implements two-way queues queue, $node); $this->countqueue ();} Public Function Frontremove () {$node = Array_shift ($this->queue); $this->countqueue (); return $node;} Public

PHP format File size to convert the bit value size file to KB, MB, GB, TB, PB unit values /** * Returns a human readable filesize * * @author Wesman20 (php.net) * @author Jonas John * @version 0.3 */f Unction humanreadablefilesize

In the development of shopping e-commerce site, often involves the generation of orders, how to ensure that each order unique, in the PHP development site, PHP generates a unique order number method /*** generates a unique order number */public

Value passing and reference passing of PHP arrays/objects The General data type (int, float, bool) does not explain this. Here is a detailed description of the difference between an array and the object of a class as a parameter for value

How does PHP define individual names for a class? In the development, may use more classes, named short, but also afraid of misunderstanding, long and cumbersome. For example, the article classification control class Articlecategorycontroller,