PHP Chinese character verification code program_PHP tutorial

This article uses three files to briefly talk about how to apply Chinese verification codes in PHP. Because Chinese characters may appear garbled, we have defined a file to handle them specifically. Friends in need can refer to it. .

The code is as follows

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/*  * File: chinesechar.php * Function: Chinese character data storage */  $ChineseChar = array("人","出","来","友","学","filial piety","benevolence","righteousness","property","honesty","loyalty"," "Guo", "Zhong", "Yi", "White", "Zhe", "Fire", "Earth", "Gold", "Wood", "Thunder", "Wind", "Dragon", "Tiger" ,"Heaven","Earth", "生"," faint","vegetable","bird","field","three","hundred","money","blessing","love"," "love", "beast", "worm", "fish", "nine", "net", "new", "degree", "ah", "ala", "ah", "oh", "yi" , "老", "小", "日", "月", "星"); ?> /*  * File: check.php * Function: Verification */  session_start(); $errorMSG = ''; //Verify whether the user input is consistent with the verification code if(!is_null($_POST['check'])) {  If (strcasecmp($_SESSION['code'],$_POST['code'])==0)                 $errorMSG = " Verification successful! ";                                                                                                             $errorMSG = " Verification failed! ";  }  ?> if($errorMSG){ echo $errorMSG; }  ?> method=post>  Please enter the verification code: /*  * File:code.php * Function: Verification code generation * Special note: Directed by Toothless Grass. All rights reserved. Please indicate the source when reprinting! Only by giving will you gain! */  include_once("chinesechar.php"); session_start(); // Set content-type header("Content-type: image/png"); //Create image $im = imagecreatetruecolor(120, 30); //Create color $fontcolor = imagecolorallocate($im, 255, 255, 255); $bg = imagecolorallocate($im, 0, 0, 0); //Set text for($i=0;$i<4;$i++) $text .= $ChineseChar[(array_rand($ChineseChar))]; $_SESSION['code'] = $text; // Set font $font = 'simkai.ttf'; //Add text imagettftext($im, 18, 0, 11, 21, $fontcolor, $font, iconv("GB2312","UTF-8",$text)); //Output image imagepng($im); imagedestroy($im); ?>

If you want to change the above program to English numbers, just change the Chinese array in chinesechar.php to numbers or letters and it will be KO.

http://www.bkjia.com/PHPjc/629692.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/629692.htmlTechArticleThis article uses three files to briefly talk about how to apply Chinese verification codes in php. Because Chinese Chinese characters may appear garbled, so we defined a file to deal with it specifically...