PHP implementation code to remove duplicate words _php tutorial

Method One: Copy CodeThe code is as follows: $text = ' array AABBCCDD '; $text _filter = "; $filter = Array (); $len = Mb_strlen ($text, ' utf-8 '); for ($i = 0; $i $char = Mb_substr ($text, $i, 1, ' utf-8 '); if (!isset ($filter [$char])) { $text _

PHP Bubble Sorting algorithm Code detailed interpretation _php tutorial

Copy CodeThe code is as follows: $arr = Array (345,4,17,6,52,16,58,69,32,8,234); $n = count ($arr); for ($i =1; $i The reason why $n-1 is because the array is calculated starting from 0 Next is the first internal loop. for ($j = $n-1; $j >= $i; $j-)

PHP to determine whether the string is all Chinese or contains Chinese implementation code _php tutorial

One, the judgment is all Chinese Copy CodeThe code is as follows: $str = "' 324 is"; if (!eregi ("[^\x80-\xff]", "$str")) { echo "All is Chinese"; }else{ echo "not"; } Second, the judgment contains the Chinese Copy CodeThe code is as

PHP Regular Expressions (regar expression) _php tutorial

Introduction: When writing a program or Web page that handles strings, there are often strings found that match certain complex rules 's needs. Regular expressions are the syntax used to describe these rules. Example: In judging the user's email

PHP write Yang Hui triangle Instance Code _php tutorial

Copy CodeThe code is as follows: Yang Hui Triangle for ($i =6; $i >= 0; $i--) { for ($j = $i; $j { if ($j { echo " a"; }else { echo " "; } } } ?> PHP print Yang Hui triangle custom Copy CodeThe code is as follows: function Yanghui

PHP design mode Delegation (delegate mode) _php Tutorial

Copy CodeThe code is as follows: /** * Delegate Mode Example * * @create_date: 2010-01-04 */ Class PlayList { var $_songs = array (); var $_object = null; function PlayList ($type) { $object = $type. " Playlistdelegation "; $this->_object = new

PHP design mode facade (appearance mode) _php Tutorial

Pattern Definition: Appearance mode (facade pattern): The external communication with a subsystem must be done through a unified appearance object, providing a consistent interface for a set of interfaces in a subsystem, and a façade pattern

PHP Introductory Learning Knowledge Point seven basic application of PHP functions _php Tutorial

Copy CodeThe code is as follows: /* * Simple Functions */ function FontBold ($con) { Return " $con"; } $STR = "Simple function test!" "; echo "Plain text: $str "; echo "bold text:". FontBold ($STR). ""; /* * Functions with optional

PHP Introductory Learning Knowledge Point four PHP regular expression basic Application _php Tutorial

Copy CodeThe code is as follows: Regular expressions Ereg Case Sensitive if (Ereg ("([A-z]{3,})", "AAA")) { echo "uppercase can match!" "; }else{ echo "No"; } if (Ereg ("([A-z]{3,})", "AAA")) { echo "Yes"; }else{ echo "Lowercase does not match! "; }

PHP Log Implementation Code _php tutorial

Copy CodeThe code is as follows: $ss_log_level = 0; $ss_log_filename =/tmp/ss-log; $ss_log_levels = Array ( NONE = 0, ERROR = 1, INFO = 2, DEBUG = 3 ); Setting the log level function Ss_log_set_level ($level = ERROR) { Global

CSS and PHP note sharing _php tutorials involved in application development

Some problems encountered in the application and solutions, do some records, for later use. I novice, technology is not skilled, notes are naïve. Ridicule please chuckle. 1, about the absolute positioning of the layer. There are two div layers,

Ajax Post method examples (with loops) _php tutorial

The use of the loop is to make reasonable processing before the data is sent, to solve the time-out phenomenon that occurs when the scripting language needs to handle the data differently. In the understanding of Ajax is not deep, if there is said

A typical PHP pagination instance code sharing _php Tutorial

Copy CodeThe code is as follows: PHP make page List $page/$pages '. $i. ' ID article title /** Created on 2010-4-17**

Beginners learn some basic knowledge of PHP share _php tutorial

One, PHP script code tagPHP script is a special tag in the file included in the content, such as ASP is "", PHP can be seen as " ”。 However, in order to adapt the XML standard to embed PHP into XML or XHTML, PHP does not recommend using the short

PHP Chinese and English Language conversion code _php tutorial

It's easy to think of it as an XML document at first. Just see how inefficient XML is. Another is a different template, but there is a small problem, some words such as time hints are uncertain, and may be minute, day. It's also possible that the

Basic principles and examples of PHP database field Reuse _php Tutorial

First, the basis of logical algebra:1, the number is represented by binary, and all possible occurrences are only 0 and 12. 2, the basic operation is only "with", "or", "non" three kinds. With operations defined as: (with & Representations and

Beginner PHP Friends often ask some questions. Constantly updating _php tutorials

Last update time: 2011-8-11 17:50:10 Which tool do you use to write PHP code now?A: Generally, with Zend Zend Studio, I am currently using eclipse.org to download the PDT, speed than Zend Studio 8, faster, although all based on Eclipse,The

PHP No refresh upload file implementation Code _php tutorial

Index.html Copy CodeThe code is as follows: No refresh upload file upload.php Copy CodeThe code is as follows: Sleep (2); $fileTypes = array (' jpg ', ' png ', ' gif ', ' bmp '); $result = null; $uploadDir =

PHP download images to local implementation code _php tutorial with regular expressions

Copy CodeThe code is as follows: /* Author:ssh_kobe date:20110602 Shortage: If the picture path in the page is not an absolute path, you cannot crawl */ Set_time_limit (0);//crawl is not limited by time $URL = ' http://pp.baidu.com/';//any

PHP run PHP script under the shell background and get the code for the process ID of the script _php tutorial

Copy CodeThe code is as follows: $command = '/usr/bin/php/pub/www/u111/job/crondo/auto_collector.php & '; $process = Proc_open ($command, Array (), $pipes); $var = Proc_get_status ($process); Proc_close ($process); PID is the process ID, as for why

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