Saturday, July 14, 2012
Hy semua sudah lama aku tidak pernah posting maaf ada banyak hal yang harus dikerjain.
ok hari ini kita akan membahasa bagaimana cara membuat Guestbook dengan php dan database.
Berikut ini adalah file-file yang akan kita buat ...
1. Buat database dan table di database.
2. Buat config.php
3. Script Security.php
3. Script index.html
4. Script save.php
5. Script view.php
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1. kita buat database buat database terserah kalian buat nama apa.
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Setelah buat database
buat table seperti dibawah ini:
<?php session_start(); class CaptchaSecurityImages { var $font = 'monofont.ttf'; function generateCode($characters) { /* list all possible characters, similar looking characters and vowels have been removed */ $possible = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; $code = ''; $i = 0; while ($i < $characters) { $code .= substr($possible, mt_rand(0, strlen($possible)-1), 1); $i++; } return $code; } function CaptchaSecurityImages($width='120',$height='40',$characters='6') { $code = $this->generateCode($characters); /* font size will be 75% of the image height */ $font_size = $height * 0.75; $image = @imagecreate($width, $height) or die('Cannot Initialize new GD image stream'); /* set the colours */ $background_color = imagecolorallocate($image, 255, 255, 255); $text_color = imagecolorallocate($image, 50, 10, 175); $noise_color = imagecolorallocate($image, 200, 150, 100); /* generate random dots in background */ for( $i=0; $i<($width*$height)/3; $i++ ) { imagefilledellipse($image, mt_rand(0,$width), mt_rand(0,$height), 1, 1, $noise_color); } /* generate random lines in background */ for( $i=0; $i<($width*$height)/150; $i++ ) { imageline($image, mt_rand(0,$width), mt_rand(0,$height), mt_rand(0,$width), mt_rand(0,$height), $noise_color); } /* create textbox and add text */ $textbox = imagettfbbox($font_size, 0, $this->font, $code); $x = ($width - $textbox[4])/2; $y = ($height - $textbox[5])/2; imagettftext($image, $font_size, 0, $x, $y, $text_color, $this->font , $code); /* output captcha image to browser */ imagejpeg($image); imagedestroy($image); $_SESSION['security_code'] = $code; } } $width = isset($_GET['width']) ? $_GET['width'] : '120'; $height = isset($_GET['height']) ? $_GET['height'] : '40'; $characters = isset($_GET['characters']) ? $_GET['characters'] : '6'; header('Content-Type: image/jpeg'); $captcha = new captchasecurityimages($width,$height,$characters); ?>