PHP

Example The code is as follows:Copy code Session_start ();?> batch upload of PHP files php file batch upload If ($ _ GET ['Up'] = up ){// Prevent repeated submissionIf ($ _ SESSION ['file'] == _ GET ['irand']) {$ _ Cont = intval ($ _ POST

The program code is as follows: The code is as follows:Copy code // + ----------------------------------------------// | Usage:// + ----------------------------------------------// | Public function _ initialize (){// | Import ('@. Util. PHPLock

I learned some basic knowledge about CURL and made this example. You can view the knowledge about CURL on the php official website and click here.Sample code debugging method: replace $ userName and $ password with the userName and password of your 1

The first method is to set the php. ini configuration file and set the attribute values of the session. gc_maxlifetime and session. cookie_lifetime nodes. Of course, you can also use the ini_set function to change the attribute values of the current

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

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