This article mainly introduced the PHP verification credit card number is correct function, this article directly gives the realization code, needs the friend may refer to under
You can use the following PHP function to verify that a card number is
When doing data interfaces, we typically get Third-party data interfaces or provide data interfaces to third parties, which are typically transmitted in XML or JSON format, and this article describes how to use PHP to generate XML format data for
Array_diff ($arr 1, $arr 2)
One of the PHP array functions used to compute the difference set of an array.Regular matching HTML picture labelPicture delete operation added with SinaeditorOne of the ways to publish an article this evening in the
The example of this article summarizes the method of accessing PHP across servers. Share to everyone for your reference. The specific analysis is as follows:
There have been several days of research on the issue of cross server access in the
This article mainly introduces the PHP design pattern Adapter Pattern code example, this article explained the goal, the role, the application scene, the superiority and so on content, and gives the code example, needs the friend to be possible to
This article mainly introduced the PHP SPL standard library in the common function introduction, this article emphatically explained Spl_autoload_extensions (), Spl_autoload_register (), Spl_autoload () three functions, Need friends can refer to the
This article to introduce you to the students about PHP Curl Mock Landing Forum and collect data instances, if you are interested in using Curl Analog login function can be entered for reference.
Libcurl also supports HTTPS authentication, HTTP
The principle is very simple, because the GB2312/GBK is Chinese two bytes, these two bytes is a range of values, and utf-8 Chinese characters are three bytes, also have a range of values for each byte. The English language is less than 128,
First, create a conn.php file to link the database
Copy Code code as follows:
$link = mysql_connect ("Mysql_host", "Mysql_user", "Mysql_password") or Die ("Could not connect:".) Mysql_error ());
mysql_query ("Set names UTF8");
mysql_select_
This article is a PHP in the Unicode encoding and decoding of a detailed analysis of the introduction, the need for friends to refer to the
Method One:
Copy Code code as follows:
function Unicode_encode ($name)
{
$name = iconv (' UTF-8 ',
PHP output Variable Enlargement bracket, what is this writing? Look at the following code:
The code is as follows
Copy Code
Header ("content-type:text/html; Charset=utf-8 ");$test = "1 variable 1";echo "preceded by a
echo "The hostname of the current scripting server:". gethostbyaddr ($_server[' remote_addr '). " ";
Echo Gets the IP address of the server on which the PHP script (page) currently runs: ". $_server[' server_addr '." ";
echo "Gets the hostname of
Often write collector release interface need to use the function of remote attachment, so write a php remote download file to the local function, generally enough, if the server support Curl function, the program will give priority to select curl,
Specific usage
addslashes prevents SQL injection
Although many domestic PHP programmers are still relying on addslashes to prevent SQL injection, it is recommended that you strengthen the Chinese to prevent SQL injection inspection. The problem
Authcode This function is used by many people, this function from the Discuz program, used to encrypt the decryption string, you can set keys (key) and expiration time, in many cases. The original function code may generate a character such as +,/, &
PHP using Curl functions can complete a variety of transfer file operations, such as Analog browser to send Get,post request, etc., limited by the PHP language itself does not support multithreading, so the development of the crawler program is not
Maybe we all understand these, as do not understand I guess the meaning of this interface, he is in order to call the next time to call the implementation of the interface in the class of the content, good around the mouth ah, write an example to
This article mainly introduces the PHP encryption and decryption class, the example analyzes the PHP implementation encryption and the decryption principle and the related technique, very has the practical value, the need friend may refer to under
String Trim (String $str [, String $charlist])-To remove white space characters (or other characters) at the end of a string
The trim () function removes spaces, tabs, line breaks, carriage returns, vertical tabs, and so on, by default when the
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