PHP

First, put all CSS in a directory, and then create an empty CSS file named css. php in this directory (except for the suffix ).Then put the edge code in the PHP file: The code is as follows:Copy code Header ('content-type: text/css ');Ob_start ("

Snoopy features:1. fetch the webpage content2. fetchtext3. Capture the link of the web page, form fetchlinks fetchform4. Support for proxy hosts5. Basic user name/password verification is supported.6. You can set user_agent, referer, cookies, and

// Connect to database  The code is as follows:Copy code $ Errmsg = "";If (! @ Mysql tutorial _ connect ("localhost", "root ","")){$ Errmsg = "Cannot connect to database ";   } @ Mysql_select_db ("db1 "); $ Q = Create table pix (Pid int primary

$ Link = mssql_connect ("localhost", "sa", "sa") or die ("cannot connect to mssql server ");Mssql_select_db ("test", $ link) or die ("database connection failed "); // Create an mssql query statement  The code is as follows:Copy code $ Ms_ SQL =

// Cyclically delete directories and file functions The code is as follows:Copy code Function delDirAndFile ($ dirName){If ($ handle = opendir ("$ dirName ")){While (false! ==( $ Item = readdir ($ handle ))){If ($ item! = "." & $ Item! = "...") {

In the manual, we write how to set the cache so that the code is not cached: The code is as follows:Copy code Header ("Cache-Control: no-store, no-cache, must-revalidate, post-check = 0, pre-check = 0"); // HTTP/1.1Header ("Expires: Sat, 26 Jul 1

Extracting the image address in src = is not enough, because it cannot be guaranteed that the address must be an absolute address. What if it is relative? If the address is:Albums/Candids/thumb_P1050338.jpg/Content/media/touts/5271608/5271654/1532098

Our core code is regular expression. The code is as follows:Copy code Function get_all_url ($ code ){Preg_match_all ('/ "'] +) [" |']? S * [^>] *> ([^>] +) /I ', $ code, $ arr );Return array ('name' => $ arr [2], 'URL' => $ arr [1]);} The above

Example The code is as follows:Copy code $ People = array ("Peter", "Joe", "Glenn", "Cleveland ");If (in_array ("Glenn", $ people ))  {Echo "Match found ";  }Else  {Echo "Match not found ";  }?> Output:Match found.Array_key_exists () functionIf

The code is as follows:Copy code $ Str = "This line containstliberal rn use of whitespace. nn ";// Remove the start and end spaces.$ Str = trim ($ str );// Remove the blank space crowded with other items$ Str = preg_replace ('/s (? = S)/', '', $

Upload operation code The code is as follows:Copy code   If ($ _ FILES ['myfile'] ['error']> 0) {// checks whether the file is successfully uploaded to the server. 0 indicates that the file is successfully uploaded.Echo 'Error :';  Switch ($ _

1. Email judgment: The code is as follows:Copy code Function is_email ($ email ){Return strlen ($ email)> 6 & preg_match ("/^ [w-.] + @ [w-] + (. w +) + $/", $ email );}?> 2. Determine the Url: The code is as follows:Copy code Function

. The code is as follows:Copy code Class Upload {Var $ saveName; // save the nameVar $ savePath; // save pathVar $ fileFormat = array ('GIF', 'jpg ', 'Doc', 'application/octet-stream'); // File Format & MIME limitationVar $ overwrite = 0; //

PHP Notice: Undefined variablePHP Notice: Undefined indexLet's take a look. You can directly use undefined variables. However, PHP compilation is not as strict as C ++, which is often used in programming. The default setting of PHP is to display

The regular expression extracts the id from the URL The code is as follows:Copy code Preg_match ('/http://t.sina.com.cn/(d +)/fans //', $ html, $ result); regular expression extracts the id in the URLEcho $ result [1]; PHP regular expression to

Variable referencePHP reference allows you to use two variables to point to the same content The code is as follows:Copy code $ A = "ABC ";$ B = & $;Echo $ a; // output here: ABCEcho $ B; // output here: ABC$ B = "EFG ";Echo $ a; // Here, the

You only need to get two variables to get half done:Number of records to be displayed per page $ pageSizeTotal data volume in the table $ rowCountWith the above two variables, we can get a total of several pages. $ pageCountThen, through the for

Method 1 The code is as follows:Copy code $ Authnum = '';$ Ychar = ", A, B, C, D, E, F, G, H, I, J, K, L, M, n, O, P, Q, R, S, T, U, V, W, X, Y, Z ";$ List = explode (",", $ ychar); // delimiter functionFor ($ I = 0; $ I $ Randnum = rand (0, 35 )

The code is as follows:Copy code // Obtain all image addresses on the pageFunction getimages ($ str){$ Match_str = "/(http: //) + ([^ rn () ^ $! '"' | [] {}<>] * )(.Gif) | (.jpg) | (.bmp) | (.png) | (. GIF) | (. JPG) | (. PNG) | (. BMP )))/";Preg_