PHP

One, DB SQL statements DB Used for PHP infinite classificationCREATE TABLE Tree (ID Int (TEN) NOT null primary key auto_increment,Name varchar (255) NOT NULL,LFT Int (a) not null default 0,RGT Int (a) not null default 0,status int (1) NOT null

① escaped characters are different Escape characters (\) can be used in both single and double quotes, but only single quotes and escape escape characters that are enclosed in single quotes are escaped. If you enclose a string in double quotes (""),

When studying Discuz, we found that Discuz has a fairly perfect encryption algorithm (relative). This algorithm can encrypt the data, save it, and then restore it using the secret key that was previously encrypted when needed. In addition to this,

/* Filter all get over variable * *foreach ($_get as $get _key=> $get _var){if (Is_numeric ($get _var)) {$get [Strtolower ($get _key)] = Get_int ($get _var);} else {$get [Strtolower ($get _key)] = Get_str ($get _var);}}* * Filter all post

= = anti-injection automatic filtering [low]========================================================================================= efficiency after activation] =/*function Inject_checks ($sql _str) {return eregi (' select|insert|update|delete| ' |

This article discusses how to completely eliminate the Warning:cannot add header information-headers already sent in ... This is a puzzling mistake. As long as you have written PHP code, I believe you have encountered this most of the time is not

The principle of Memche Message Queuing is to make a fuss over the key to do a continuous number plus the prefix records after serialization of messages or logs. The content is then landed in a file or database through a timer program. The use of

Gets the specified year date into the timestamp: PHP timestamp function gets the UNIX timestamp strtotime of the specified date (' 2012-12-7 ') Examples are as follows: The code is as follows Copy Code

The code is as follows Copy Code Sina App_keyDefine (' Sina_appkey ', ' 31641035 '); function Curlquery ($url) {Set additional HTTP Headers$addHead = Array ("Content-type:application/json"); Initialize curl, of course, you can also

if (Eregi (^[_.0-9a-z-]+@) ([0-9a-z][0-9a-z-]+.) +[a-z]$ ", $email)) { echo "Your e-mail through preliminary check"; } ?> In this sentence, the first is to apply a eregi function, this function is very good understanding. Find a book and give you an

Blogger old can bind rice free blog (google)Blogger powerful, there are many templates to choose from (also customizable style template), can facilitate the integration of AdSense account to put ads to make money! Address: http://www.blogger.com

PHP level 3,012 domain Name definition method 02//This Program modified by UIT88! $mydomin = $_server[' http_host '];//get the domain name entered Switch ($mydomin) { Case ("www.023wo.com"): Header (' http/1.1 moved Permanently ');/Send 301

PHP htmlspecialchars function Definitions and usageThe Addslashes () function adds a backslash before the specified predefined character. Some characters have special meanings for HTML and should be represented in HTML entities if they want to

Today, after the upgrade of PHP 502 Bad Gateway error, according to experience is PHP-FPM problem, but see what traffic on the Internet, child process settings, but I do not have any traffic on the server. So you can only look at the configuration

Web Service is generated for the communication of heterogeneous systems. Its basic idea is to use XML-based HTTP remote calls to provide a standard mechanism, this eliminates the need to establish a new protocol. At present, there are two protocol

Let's first look at an example: The code is as follows:Copy code $ S = str_repeat ('1', 255); // generates a string consisting of 255 1$ M = memory_get_usage (); // Get the memory occupied currentlyUnset ($ s );$ Mm = memory_get_usage (); //

We want to count the number of visitors to the site within a period of time. There are multiple solutions. You can use cookies, sessions, and text or databases to record the number of user tokens. This article uses PHP, Mysql, and jQuery to show an

1. list functionThe list function assigns values in the array to some variables. The syntax is as follows:Void list (mixed $ varname, mixed $ varname ...)Like array (), this is not a real function, but a language structure. List () assigns values to

Global variables and "global" keywordsPHP defines some "Superglobals" variables by default. These variables are automatically merged and can bePrograms are called anywhere, such as $ _ GET and $ _ REQUEST. They generally come from data or other

 System environment: centOS6.3APACHE: httpd-2.4.2PHP: php-5.3.211. Install mcrypt1. Download the Libmcrypt, mhash, and mcrypt installation packages.Libmcrypt-2.5.8.tar.gz# Wget http://sourceforge.net/project/showfiles.php?Group_id = 87941 &