PHP

The PHP world of buffering is a hot topic, because the dynamic page generated by PHP, each user request needs to be recalculated, regardless of the request results are the same, and PHP will compile a script each time. This overload is certainly

In PHP, the common way to find multi-dimensional arrays is recursively, as in the following code $count =0; $sum = 0;function Avgarr ($arr){Global $sum, $count; Global variablesforeach ($arr as $value) {//Loop traversal arrayif (Is_array ($value)) {

Val () has a lot of lethality for PHP security in general, to prevent needs to be banned from breaking the door. It's wrong to say that using disable_functions to ban Eval is a lot on the web. In fact, eval () cannot be banned with

The so-called Sina callback interface, is when the capital recharge success, Sina will inform this website a message to inform already recharge success, and return a group of successful array, we based on this data to a local database

PHP filter special characters and SQL anti-injection codeMethod OneFilter ', ', SQL nameAddslashes (); Method Two, remove all HTML tags Strip_tags (); Method three filters may generate code function Php_sava ($STR){$farr = Array ("/s+/","/]*?) >/

The topic of scripting security seems to last forever, and if you often go to a variety of bugtraq abroad, you will find that more than half of them are related to scripts, such as SQL Injection,xss,path disclosure,remote commands Execution such

Sometimes you need to filter out the extra tag attributes, such as the IMG tab that filters out all attributes except the SRC attribute, such as deleting titile alt attributes and some of the foot onclick properties. For example, to filter all

First, the question: The database is Ms SQLServer2000, to the SQLServer2000 of a table of data into the MySQL5, where SQLServer2000 table fields in Simplified Chinese name (strongly recommended not to do in Chinese as field name). In fact, the

The code is as follows Copy Code MYSQL_INSERT_ID ()The mysql_insert_id () function returns the ID generated by the previous insert operation. If the previous query does not produce a auto_increment ID, mysql_insert_id () returns 0.

PHP + jQuery Ajax File upload instance. Because see some friends ask how to implement the PHP environment of the Web page upload function, oneself these days just used the jquery_upload_multiple upload plug-ins, so here to use for everyone to say.

The code is as follows Copy Code Class mq{public static $client;private static $m _real;private static $m _front;private static $m _data = Array ();Const QUEUE_MAX_NUM = 100000000;Const Queue_front_key = ' _queue_item_front ';Const

Recently wrote a number of counter source instances and generate static article CMS, using the php file operation, PHP file operation function is still very powerful, really often used is often a few. So in the study, just remember to use a few of

Empty is a value that determines whether the variable value is Non-null or Non-zero. Corresponding NULL definitions include: "" (empty string), 0, "0", NULL, FALSE, Array (), and $var (only declared but not assigned). That is, when the value of the

In the previous article, we used HTML5 to detect mobile phone shaking to achieve the effect of shaking. Mobile phone shake can be applied to a lot of scenes, such as shaking a lottery draw, shaking a wave search songs and so on. This article I will

Call/*** Sina Blog Editor PHP edition encapsulation Class call method**/Header (\ ' content-type:text/html; Charset=utf-8;\ ');Include_once (\ ' sinaeditor.class.php\ ');Extract ($_post);Extract ($_get);Unset ($_post,$_get);$act ==\ ' subok\ ' &&

Ajax application simple test system problem: Welcome to use this test system. Click Start! answer: Tip: Ajax. js fileVar ajaxreq = false, ajaxCallback;Function ajaxRequest (filename ){Try {Ajaxreq = new XMLHttpRequest ();} Catch

PHP SimpleXMLSimpleXML processes the most common XML tasks and blades, with other extensions.What is SimpleXML?SimpleXML is the new PHP 5. This is a simple way to get the attributes and text of a element, if you know the layout of the XML

  The code is as follows:Copy code Session_start ();$ Con = mysql_connect ('localhost', 'root', 'root') or die ('database connection failed! ');Mysql_query ('set names utf8 ');Mysql_select_db ('guestbook ');$ Pagesize = 10; // The number of

First category (parent category) --> second category (sub-category) --> third category (Sun category)The more kinship classification, the more complex and difficult it is to control programs and database tutorials. classification processing and