PHP Tutorials

image.php file Copy CodeThe code is as follows: $conn = @mysql_connect ("localhost", "root", "123") or Die ("Server connection Error!"); Link Database @mysql_select_db ("Upload", $conn) or Die ("Database not Found!"); $query = "SELECT * from

Originally published a Break out of the Database page class, recently used to find some time to search for something too large, the use of URL to pass parameters, there may be some impact or known bugs, this time to do some expansion, and compatible

Copy CodeThe code is as follows: /* +-------------------------------------------------------------------------- | B-check v0.05 | ======================================== | South Third production | Http://www.zndown.com | ===========================

Copy CodeThe code is as follows: $a = ' 212345678912000005 '; $b = ' 212345678912000001 '; Var_dump ($a = = $b); The output of this code is bool (TRUE), stating that the judgment will conclude that the two are equal. A similar attribute is in the

PHP includes several functions that can determine the type of variable, such as: GetType (), Is_array (), Is_float (), Is_int (), Is_object (), and is_string (). Copy CodeThe code is as follows: $s = "This is a string"; $i = 9; $arr = Array (2,4,6)

One, the template call For example, in a template, to invoke the contents of another template, you can use the following statement: {Template XXX} Suppose that a new template was created named "Abc.htm", in BackstageTemplate editing is only

About page optimization and pseudo-static 1) Layout optimization 2) pseudo-static (focus on apache,smarty, regular) Detailed content: First, layout optimization: Layout optimization actually mainly involves the relationship between

Copy CodeThe code is as follows: /* * Paging function * $num Total number of bars, $perpage how many pages, $curpage the current page, $mpurl url, $page = 10 shows several pagination * */ function multi ($num, $perpage, $curpage, $mpurl, $page = 10)

Features to implement: monitor the user table and add it to the User2 table if a new record is added. (Practical application can be a bit deeper, such as data related processing, etc.) Here is the PHP code (dbtest.php) Copy CodeThe code is as

When I upload a thumbnail image, the thumbnail shows the following link; Copy CodeThe code is as follows: The result does not show the thumbnail under IE6, and then goes back to the following snippet: Copy CodeThe code is as follows: Header

For example: Copy CodeThe code is as follows: $USERID = "Phper"; $CookieTime = 0; Setcookie ("USERID", "$USERID", Time () + $CookieTime, "/", "btcuxiao.com"); ?> You will find that after this statement is executed, there is nothing in the cookie,

Official Handbook (http://us.php.net/manual/en/function.natsort.php) Copy CodeThe code is as follows: BOOL Natsort (array & $array) This function implements a sort algorithm it orders alphanumeric strings in the the the-a human being would while

Features include: Require_once ("backdata.class.php"); $link = @mysql_connect ("localhost", "Database name", "password") or Die (' Could not connect to server. '); mysql_query ("Use CMS", $link); mysql_query ("Set names UTF8", $link); $dbbck =new

Determine whether a variable is considered to be empty. But in my memory, for a long time I thought that empty should be able to tell if something was empty, until one day I had an error like "Empty ($a)" used, Then we'll find out the manual. The

PHP Security Defense Program model Copy CodeThe code is as follows: /* PHP anti-injection cross-site V1.0 At the top of your page, add: Require ("menzhi_injection.php"); Enables universal prevention of SQL injection and XSS cross-site

Auto Load Class Many developers write object-oriented applications, creating a PHP source file for each class definition. A very big Annoyance is having to write a long list of included files at the beginning of each script (one file per class). In

Serialization of objects Sometimes it is necessary to transfer an object over the network, in order to facilitate the transfer, the whole object can be converted into a binary string, When you reach the other end and revert back to the original

burst field length Order by num/* Match field and 1=1 Union Select 1,2,3,4,5.......n/* Storm field position and 1=2 Union Select 1,2,3,4,5.....n/* Using built-in functions to storm database information Version () database () User () No need to

Copy CodeThe code is as follows: $fp = fopen (' d:/file.txt ', ' r+ '); if ($fp) { $i = 1; while (!feof ($fp)) { Modify the second row of data if ($i = = 2) { Fseek ($FP, 2, seek_cur); Fwrite ($fp, ' # '); Break } Fgets ($FP); $i + +; } Fclose ($FP);

Copy CodeThe code is as follows: function Getalldirandfile ($path) { if (Is_file ($path)) { if (Isimage ($path)) { $str = ""; $str. = ' '; $str. = " "; $path =iconv ("gb2312", "Utf-8", $path); $str. = " ". $path." "; $str. = "