PHP Tutorials

First, let's get to the next Ucenter login step 1, the user login discuz, through the logging.php file function Uc_user_login to post data verification, that is, username and password to verify. 2. If the validation succeeds, the function

Of course, to write an extension that installs PHP first, refer to this article: Redis and PHP extensions installation Modify the settings for PHP.ini Copy CodeThe code is as follows: Session.save_handler = Redis Session.save_path = "Tcp://127.0.0.1

There is a difference between the pointers in the C language. The pointer inside the C language stores a reference to the address variable where the contents of the variable are stored in memory. PHP references allow you to use two variables to

Verify the PHP code for the check box, as follows: Copy the Code code as follows: /*** Verify the validity of the check box in PHP*/$value = ' yes ';echo "Verify data ";if (Isset ($_post[' subscribe ')) {if ($_post[' subscribe ') = = $value)

For example, there are now and then. 3 pages. You want the user to start visiting the first page, then click Next to see "second page", and then before entering "third page", the user cannot Back off. Let 1 and 2 be the same page. Leave a mark in

PHP 301 Jump to Small code Copy the Code code as follows: $the _host = $_server[' http_host ');$request _uri = isset ($_server[' Request_uri ')? $_server[' Request_uri ': ';if ($the _host!== ' www.jb51.net '){echo $_server[' http_host

Here are some of the differences I found in the process of Doing Business station: (for reference only) First, $_server[' server_name ' in Windows System, at the end there is/, there is no/under Linux. The following methods can be used to process

Copy CodeThe code is as follows: $shortCut = "[Internetshortcut] Url=http://www.jb51.net idlist= [{000214a0-0000-0000-c000-000000000046}] prop3=19,2 "; Header ("Content-type:application/octet-stream"); Header ("content-disposition:attachment;

Copy CodeThe code is as follows: Class Aesmcrypt {public $iv = null;public $key = null;Public $bit = 128;Private $cipher;Public function __construct ($bit, $key, $iv, $mode) {if (Empty ($bit) | | empty ($key) | | empty ($IV) | | empty

Statistical graphs we will often to the data graph, if three arrays to graphic display or real estate to graph to us will need to use graphics, below I introduce a PHP libchart graph generation Class bar, very useful for the needs of friends to

Look at the code, then explain. Copy CodeThe code is as follows: $array =array (' A ', ' B ', ' C ', ' d '); foreach ($array as $key = = $val) { Do something } echo $val;//Output D echo $kay;//Output 3 $val = ' E '; Print_r ($array);//output array

What is a reference?Referencing in PHP means accessing the same variable content with a different name. This is not like the C pointer, instead, the reference is the symbol table alias. Note that in PHP, variable names and variable contents are not

Getting the array length method in PHP is simple, PHP provides us with two functions to calculate the length of one-dimensional array, such as count,sizeof can be directly statistical array length Oh, let's look at a few examples. How PHP Gets the

A time ago, when I wrote an API about mobile apps, it was always a query_string address, and it was a act parameter that distinguishes all the actions, which makes developers look more cost-sensitive. Originally wanted to be rewritten as "?

Copy CodeThe code is as follows: Class Sqlsafe { Private $getfilter = "' | (And|or) \\b.+? (>|Private $postfilter = "\\b (and|or) \\b.{1,6}?" (=|>|Private $cookiefilter = "\\b (and|or) \\b.{1,6}?" (=|>|/** * Constructor function */ Public Function _

Natively Copy CodeThe code is as follows: $uri = "http://www.a.com/test.php";//replace it with your server's address Parameter array $data = Array ( ' Name ' = ' Tanteng ' ' Password ' = ' password ' ); $ch = Curl_init (); Print_r

A few days ago because the business needs to write a calculation of the combination of permutations of code, today, to prepare a bit for later use Copy CodeThe code is as follows: /** * Math problem to solve: Calculate C (a,1) * C (b, 1) * ... *

Copy CodeThe code is as follows: $data = Array ( ' Title ' = ' Ilsea ', ' List ' =>array ( ' Hello ', ' World ' ) ); Include (' show.php '); show.php template file echo $data [' title ']; Echo ' '; Print_r ($data [' list ']); ?> Define a

Load bottlenecks are generally mainly in the following four areas: 1 database 2 Server CPU 3 hard disk I/O 4 Network bandwidth Except for the four of them. What else is worth optimizing for? PHP is really strong. Today, the PHP script level to

You can modify the code to add some judgment: Copy the Code code as follows:if (Empty ($_post[' name '])) {echo "As the saying goes, Yanguoliusheng people";} ElseIf (Empty ($_post[' comment ')) {echo "Low oil, say a few more words ~";}else{$sql =