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Session_Start (); $ENABLEGD = 1;$funcs = Array (' Imagecreatetruecolor ', ' imagecolorallocate ', ' Imagefill ', ' imagestring ', ' imageline ', ' imagerotate ', ' Imagedestroy ', ' imagecolorallocatealpha ', ' imageellipse ', ' imagepng ');foreach

The code is as follows Copy Code Session_Start (); $ENABLEGD = 1;To determine whether an image processing function exists$funcs = Array (' Imagecreatetruecolor ', ' imagecolorallocate ', ' Imagefill ', ' imagestring ', ' imageline '

MySQL Error injection principle analysis (count (), Rand (), GROUP by)0x00 questionshave been using the MySQL Database error injection method, but why the error?Baidu Google know a bit, found that everyone is the official website of the conclusion

{ $authcode = new Authcode (); if ($authcode->geturifilename () = = "authcode.php") { $authcode->outputimg (); } } function Chkauthcode ($Authcode) { if ($_session[' authcode '] = = $Authcode) { $rtn = true; } Else { $rtn = false; } $_session['

Look at the effect chart first The path to the font and font files needs to be set in $fontfilepath and $fontfilename in the class. Such as: Copy Code code as follows: private static $FontFilePath = "static/font/"; Relative to the

Find a reprinted copy of the MSN P2P protocol. Save it. There is another URL that is invalid. /*Msnp2p. cpp-MSN P2P protocol Copyright (c) 2003 by Olivier goffart **************************************** ************************************

Look first. The path to the font and font files needs to be set in $fontfilepath and $fontfilename in the class. Such as:Copy the Code code as follows:private static $FontFilePath = "static/font/"; Location relative to this code fileprivate

Php generates a verification code program with interference. This section describes a verification generation program with high security. it can contain interference lines and other content, which can effectively prevent users from using the program

Reference Link: http://mp.weixin.qq.com/s?__biz=MzA5NDY0OTQ0Mw==&mid=403404979&idx=1&sn= 27d10b6da357d72304086311cefd573e&scene=1&srcid=04131x3lqlrdmyocntcqwf6n#wechat_redirectThere are many articles on the floor error, but are the use of statements,

The CONCATENATE function is a text join function, very simple, and the same as the & effect.Concatenate is a text join functionSyntax: Concatenate (TEXT1,TEXT2,TEXT3 ...)Where text represents one of the texts to be concatenated together.Random

Class SecureCode{private static $instance =null;Private $code = ';Private $fontfile;Private $validate;Private $image;Private $specialadd = ' special string for SecureCode ';Private $codeexpire = 86400;Private $codecookiename = ' secure_code '; /***

Generate and output the verification code Image. how to output X images? $ Num = ""; For ($ I = 0; $ I $ Num. = rand (0, 9 ); } Session_start (); $ _ SESSION ["Checknum"] = $ num; Header ("Content-type: image/png "); Srand (double) microtime () *

One, SQL Blind Note:Cannot see the echo, cannot from return directly reads to the database content the data The Guess solution, belongs to the blind note.Second, the first kind-based on the Boolean type of blind Note:This is very simple, the most

Operation Result:Class Vcode {Private $width; WidePrivate $height; HighPrivate $num; NumberPrivate $code; Verification CodePrivate $img; Resources for imagesConstruction method, three parametersfunction __construct ($width =80, $height =20, $num =4)

Read about the MySQL error injection of technical articles, are similar to the following statements are injected. Such a statement is called the formula "formula", a lot of small dishes are used directly, do not know why this is. But I have to have

Information Detection: Target Site: http://www.sixxf.itServer IP Address: 192.232.2xx.97 (USA)Environment platform: PHPServer System: ApacheThis time, I used a webpage to detect that the information on this site is not complete. Go to the topic,

Using GD library in PHP5 to generate graphics verification code This is similar to the following 1. Create a picture with the GD library function and write the specified character on the image Imagecreatetruecolor Create a new true color

Generating graphics verification code using GD library in PHP5 Similar to the following 1. Use the GD library function to generate pictures and write the specified characters on the picture Imagecreatetruecolor Create a new true color

Purpose of Study:Block machine requests to ensure that the business is not disturbed by machine submission requests.Why to block:In General Service-side business, write requests consume much more than read requests .Technical points:1.

The code is as follows Copy Code /** Created on 2011-3-11* Programmer:xiaoyao, qq:1045195056Validation by judging input values and $_session[' check_pic ' values*/Session_Start ();function Randascii ($number) {//$number produces