PHP Chinese character Verification Code program _php Tutorial

This article uses three files to simply talk about how to apply Chinese verification code in PHP, Chinese characters may appear garbled so we define a file to deal with, the need for friends can refer to the next.

The code is as follows

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/* * File: chinesechar.php * Role: Chinese character data storage */ $ChineseChar = Array ("Person", "out", "Come", "friend", "Learn", "filial piety", "benevolence", "righteousness", "propriety", "low", "loyalty", "Country", "middle", "easy", "white", "person", "Fire", "Earth", "gold", "Wood", "Thunder", "Wind", "Dragon" , "Tiger", "Day", "ground", "Life", "halo", "dish", "bird", "Tian", "three", "Hundred", "money", "blessing", "Love", "Feeling", "Beast", "Worm", "fish", "nine", "net", "new", "degree", "ay", "Alas", "ah", "Oh", "Miriam", "old", " Less "," Day "," month "," star "); ?> /* * File: check.php * Role: Validation */ Session_Start (); $errorMSG = "; Verify that the user input is consistent with the verification code if (!is_null ($_post[' check ')) { if (strcasecmp ($_session[' code '],$_post[' code ') ==0) $errorMSG = " Verify success! "; Else $errorMSG = " Validation failed! "; } ?> if ($errorMSG) { Echo $errorMSG; } ?> /* * File: code.php * Function: Verification code generation * Special Note: By the teeth of the Grass guide all copyright reprint to indicate the source! There will be a harvest to pay! */ Include_once ("chinesechar.php"); Session_Start (); Set Content-type Header ("Content-type:image/png"); Create a picture $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, 0, one, one, $fontcolor, $font, Iconv ("GB2312", "UTF-8", $text)); Output picture Imagepng ($im); Imagedestroy ($im); ?>

If you want to change the above program into English numbers, as long as the chinesechar.php inside the array of Chinese into numbers or letters on the KO.

http://www.bkjia.com/PHPjc/629692.html www.bkjia.com true http://www.bkjia.com/PHPjc/629692.html techarticle This article uses three files to simply talk about how to apply Chinese verification code in PHP, Chinese because it is possible garbled characters, so we define a file to specialize in ...

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