79 lines
2.5 KiB
PHP
79 lines
2.5 KiB
PHP
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<?
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class ValidateCode {
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private $charset = '0123456789';//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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private $code;//<2F><>֤<EFBFBD><D6A4>
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private $codelen = 4;//<2F><>֤<EFBFBD>볤<EFBFBD><EBB3A4>
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private $width = 130;//<2F><><EFBFBD><EFBFBD>
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private $height = 50;//<2F>߶<EFBFBD>
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private $img;//ͼ<><CDBC><EFBFBD><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD>
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private $font;//ָ<><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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private $fontsize = 25;//ָ<><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С
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private $fontcolor;//ָ<><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɫ
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//<2F><><EFBFBD>췽<EFBFBD><ECB7BD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>
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public function __construct() {
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$this->font = 'include/font/Elephant.ttf';//ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7>Ҫд<D2AA>ԣ<EFBFBD><D4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD>ͼƬ
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}
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//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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private function createCode() {
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$_len = strlen($this->charset)-1;
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for ($i=0;$i<$this->codelen;$i++) {
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$this->code .= $this->charset[mt_rand(0,$_len)];
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}
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}
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//<2F><><EFBFBD>ɱ<EFBFBD><C9B1><EFBFBD>
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private function createBg() {
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$this->img = imagecreatetruecolor($this->width, $this->height);
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$color = imagecolorallocate($this->img, mt_rand(157,255), mt_rand(157,255), mt_rand(157,255));
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imagefilledrectangle($this->img,0,$this->height,$this->width,0,$color);
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}
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//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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private function createFont() {
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$_x = $this->width / $this->codelen;
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for ($i=0;$i<$this->codelen;$i++) {
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$this->fontcolor = imagecolorallocate($this->img,mt_rand(0,156),mt_rand(0,156),mt_rand(0,156));
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imagettftext($this->img,$this->fontsize,mt_rand(-30,30),$_x*$i+mt_rand(1,5),$this->height / 1.4,$this->fontcolor,$this->font,$this->code[$i]);
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}
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}
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//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѩ<EFBFBD><D1A9>
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private function createLine() {
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//<2F><><EFBFBD><EFBFBD>
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for ($i=0;$i<6;$i++) {
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$color = imagecolorallocate($this->img,mt_rand(0,156),mt_rand(0,156),mt_rand(0,156));
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imageline($this->img,mt_rand(0,$this->width),mt_rand(0,$this->height),mt_rand(0,$this->width),mt_rand(0,$this->height),$color);
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}
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//ѩ<><D1A9>
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for ($i=0;$i<100;$i++) {
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$color = imagecolorallocate($this->img,mt_rand(200,255),mt_rand(200,255),mt_rand(200,255));
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imagestring($this->img,mt_rand(1,5),mt_rand(0,$this->width),mt_rand(0,$this->height),'*',$color);
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}
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}
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//<2F><><EFBFBD><EFBFBD>
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private function outPut() {
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header('Content-type:image/png');
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imagepng($this->img);
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imagedestroy($this->img);
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}
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//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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public function getimg() {
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$this->createBg();
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$this->createCode();
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$this->createLine();
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$this->createFont();
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ob_start();
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imagepng($this->img);
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imagedestroy($this->img);
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$img = ob_get_clean();
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return array($img, $this->code);
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}
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//<2F><>ȡ<EFBFBD><C8A1>֤<EFBFBD><D6A4>
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public function getCode() {
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return strtolower($this->code);
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}
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}
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session_start();
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$_vc = new ValidateCode(); //ʵ<><CAB5><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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$a = $_vc->getimg();
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//echo '<img src="data:image/png;base64,'.base64_encode($a[0]).'" /><br />'.$a[1];
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$_SESSION['ftyzm'] = $a[1];
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header("Content-Type: image/png");
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echo $a[0];
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