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  Tutorial: PHP GD Captcha Refersh

PHP GD Captcha Refersh


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In this example we will see how to refresh captcha image in php gd.

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PHP GD Captcha Refersh

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PHP GD Captcha Refersh

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PHP GD Captcha Refersh
index.php <?php session_start(); if(isset($_POST['submit_x']) &...($_POST['message'])) { $data = base64_decode($_SESSION['captcha_image_code']); $captcha_image = imagecreatefromstring($data); $x = $_POST['submit_x
 
PHP GD captcha
<?php session_start(); class CaptchaSecurityImages { var $font... initialize new GD image stream'); $background_color = imagecolorallocate($image...'; $captcha = new CaptchaSecurityImages($width,$height,$characters); ?>
 
How to implement Captcha in PHP Form using GD Library
How to implement Captcha in PHP Form using GD Library  Hi, How to show Captcha in PHP Form. So, please suggest any online reference so that i will try myself. Thanks
 
captcha
captcha  How can Place Captcha using simple plugin.how can i added my eclipse frame work Thanks venu
 
PHP GD get gd information
<?php echo '<pre> '; print_r(gd_info()); echo '</pre> '; ?> After running the program you will get the following output Array ( [GD Version] => bundled (2.0.34 compatible) [FreeType Support
 
About PHP GD
What is PHP GD Library GD: The GD graphics library is a developed by Thomas..., PHP, Tcl, Lua, REXX, Ruby etc.  The GD library is used to create...' and wrappers are available for Perl, PHP and other languages. GD can create images
 
PHP GD Library, PHP GD Tutorial
The PHP GD Library is one of the most used image-processing libraries used..., resize, crop image on the fly. In this section you will learn PHP GD Library in detail. Let?s get start with the PHP GD Library
 
About PHP GD Arc
PHP GD arc Function <?php $img = imagecreate(200, 200); $red = imagecolorallocate($img, 255, 0, 0); $black = imagecolorallocate($img, 0, 0, 0);  imagearc($img, 100, 100, 150, 150, 0, 360, $black);  header("Content-type
 
PHP GD image set pixel
<?php $x = 200; $y = 200; $gd = imagecreatetruecolor($x, $y...; 190); $red = imagecolorallocate($gd, 255, 255, 255); for ($i = 0; $i < 100000; $i++) { imagesetpixel($gd, round($x),round($y), $red
 
PHP GD imagesy
<?php $img = imagecreatetruecolor(300, 200); echo imagesy($img); ?> After running the program you will get the following output OUTPUT:200
 
PHP GD imagesx
<?php $img = imagecreatetruecolor(300, 200); echo imagesx($img); ?> After running the program you will get the following output OUTPUT :300
 
PHP GD Hue an Image
<?php $im = imagecreatefromJPEG('images.jpg'); echo 'Hue white& black:' . imagecolorclosesthwb($im, 116, 115, 152); imagedestroy($im); ?> After running the program you will get the following output OUTPUT:Hue
 
PHP GD rotate image
<?php $image = 'images.jpg'; $degrees = 180; header('Content-type: image/jpeg') ; $source = imagecreatefromjpeg($image) ; $rotate = imagerotate($source, $degrees, 0) ; imagejpeg($rotate) ; ?> After running
 
PHP GD crop image
<?php $src = imagecreatefromjpeg('image1.jpg'); $dest = imagecreatetruecolor(80, 40); imagecopy($dest, $src, 0, 0, 20, 13, 80, 40); header('Content-Type: image/jpeg'); imagegif($dest); imagedestroy($dest
 
PHP GD imagettfbox
<?php $im = imagecreatetruecolor(300, 150); $black...'; $bbox = imagettfbbox(10, 45, $font, 'PHP version ' . phpversion..., $black, $font, 'PHP version ' . phpversion()); $bbox = imagettfbbox(10
 
PHP GD fill image
<?php $im = imagecreatetruecolor(55, 30); $white = imagecolorallocate($im, 255, 255, 255); imagefilledrectangle($im, 4, 4, 50, 25, $white); imagejpeg($im, 'imagefilledrectangle.jpg'); echo("Image filled
 
PHP GD Merge Image
<?php $backgroundSource = "merge.jpg"; $feedBurnerStatsSource = "images.jpg"; $outputImage = imagecreatefromjpeg($backgroundSource); $feedBurnerStats = imagecreatefromjpeg($feedBurnerStatsSource
 
PHP GD image convolution
<?php $image = imagecreatefromjpeg('images.jpg'); $emboss = array(array(2, 0, 0), array(0, -1, 0), array(0, 0, -1)); imageconvolution($image, $emboss, 1, 127); header('Content-Type: image/jpeg'); imagejpeg($image
 
PHP GD font size
<?php header ("Content-type: image/png"); $handle = ImageCreate (130, 50) or die ("Cannot Create image"); $bg_color = ImageColorAllocate ($handle, 255, 0, 0); $txt_color = ImageColorAllocate
 
PHP GD filters
<?php try{ if(!$image=imagecreatefromjpeg('images.jpg')){ throw new Exception('Error creating image'); } if(!imagefilter($image,IMG_FILTER_COLORIZE,255,0,0)){ throw new Exception(" Can't filter image"); } header
 
PHP GD imagettftext
<?php header('Content-type: image/png'); $im = imagecreatetruecolor(400, 30); $white = imagecolorallocate($im, 255, 255, 255); $grey = imagecolorallocate($im, 128, 128, 128); $black = imagecolorallocate($im, 0, 0
 
PHP GD image filter
<?php $logo1 = imagecreatefromjpeg('images.jpg'); $logo2 = imagecreatefromjpeg('images.jpg'); $output = imagecreatetruecolor(imagesx($logo1) * 2, imagesy($logo1)); imagefilter($logo1, IMG_FILTER_PIXELATE, 3); imagefilter
 
PHP GD bold text
<?php header('Content-type: image/png'); $image = imagecreatetruecolor(400, 30); $red = imagecolorallocate($image, 255, 0, 0); $grey = imagecolorallocate($image, 128, 128, 128); $black = imagecolorallocate($image
 
PHP GD draw text
<?php header('Content-type: image/png'); $im = imagecreatetruecolor(400, 30); $white = imagecolorallocate($im, 255, 255, 255); $grey = imagecolorallocate($im, 128, 128, 128); $black = imagecolorallocate($im, 0, 0
 
PHP GD Grayscale
<?php $file = 'images.jpg'; header('Content-type: image/jpeg'); list($width, $height) = getimagesize($file); $source = imagecreatefromjpeg($file); $bwimage= imagecreate($width, $height); for ($c=0;$c<256;$c
 
PHP GD watermark an Image
<?php ini_set("display_errors", "1"); error_reporting(E_ALL); $image_src = 'images.jpg'; $watermark_src = 'watermark.jpg'; $opacity = 30; $padding = 20; $image = imagecreatefromjpeg($image_src
 
PHP GD art
<?php $width=200; $height=200; Header("Content-type: image/jpeg"); $im = imagecreate($width,$height); $white=ImageColorAllocate($im,255,255,255); $blue=ImageColorAllocate($im,1,18,250); $red=ImageColorAllocate
 
PHP GD graphics
<?php $img = imagecreate(250,80); $black = imagecolorallocate($img, 0, 0, 0); $white = imagecolorallocate($img, 255, 255, 255); $red = imagecolorallocate($img, 255, 0, 0); $green = imagecolorallocate($img, 0, 255
 
PHP GD circle
<?php $text = "RoseindiaRoseindiaRoseindiaRoseindiaRoseindia "; $image = imagecreatetruecolor(400,400); $white = imagecolorallocate($image,255,255,255); imagefill($image,0,0,$white); $red = imagecolorallocate
 
PHP GD Draw Rectangle
<?php header("Content-type: image/jpeg"); $width = 350; $height = 360; $im = ImageCreateTrueColor($width, $height); ImageAntiAlias($im, true); $white = ImageColorAllocate($im, 255, 255, 255
 
PHP GD line graph
<?php header("Content-type: image/png"); $arrval = array(12,123,21,32,77,85,166,176,163,121); $height = 260; $width = 330; $im = imagecreate($width,$height); $white = imagecolorallocate($im,255,255,255
 
PHP GD add text to image
PHP GD Add Text to Image Example <?php header ("Content-type: image/jpeg"); $string = "This is my text"; $font = 4; $width = imagefontwidth($font) * strlen($string) ; $height = imagefontheight
 
PHP GD Punch
<?php $image = imagecreatefromjpeg("images.jpg"); $displacement = displacement($image); $image = imagedisplace($image,$displacement); header("Content-type: image/jpeg"); imagejpeg($image); imagedestroy
 
PHP GD Create Thumbnail
<?php $i = new imagethumbnail(); $i->open("index.jpg"); $i->setX(100); header("Content-type: image/jpeg;"); $i->imagejpeg(); class imagethumbnail { var $filename; var $x; var $y; var $image
 
PHP GD imagesetbrush() Function
<?php $php = imagecreatefromjpeg('im.jpg'); $im...); imagefilledrectangle($im, 0, 0, 299, 99, $white); imagesetbrush($im, $php); imageline...'); imagejpeg($im); imagedestroy($im); imagedestroy($php); ?> After
 
PHP GD copy of image
<?php $src = imagecreatefromjpeg('images.jpg'); $dest = imagecreatetruecolor(80, 40); imagecopy($dest, $src, 0, 0, 20, 13, 80, 40); header('Content-Type: image/jpeg'); imagejpeg($dest); imagedestroy($dest
 
PHP GD xpm
<?php if(!(imagetypes() & IMG_XPM)) { die('Support for xpm was not found!'); } $xpm = imagecreatefromxpm('./example.xpm'); imagejpeg($im, './example.jpg', 100); imagedestroy($im); ?> After running the program
 
PHP GD Colorization of image
<?php $im = imagecreatefromjpeg('images.jpg'); if($im && imagefilter($im, IMG_FILTER_COLORIZE, 0, 255, 0)) { echo 'Image successfully shaded green.'; imagejpeg($im, 'images.jpg'); imagedestroy($im); } else
 
php gd Wbmp
<?php $im = imagecreatetruecolor(120, 20); $text_color = imagecolorallocate($im, 225, 0, 0); imagestring($im, 1, 5, 5, 'Roseindia', $text_color); imagewbmp($im, 'simpletext.wbmp'); echo "Wbmp file created
 
php gd background color
<?php header("Content-type: image/png"); $width = 350; $height = 360; $im = ImageCreateTrueColor($width, $height); $red = ImageColorAllocate($im, 255, 0, 0); ImageFillToBorder($im, 0, 0, $red, $red
 
PHP GD Gradient Fill
<?php $image = ImageCreate(200, 200); for($i=0; $i<255; $i++) { $background_color = ImageColorAllocate($image, $i, $i, $i); } $text_color = ImageColorAllocate($image, 255, 255, 255); $tekst = "
 
PHP GD gif
<?php function LoadGif($imgname) { $im = @imagecreatefromgif($imgname); if(!$im) { $im = imagecreatetruecolor (150, 30); $bgc = imagecolorallocate ($im, 255, 0, 0); $tc = imagecolorallocate ($im, 0, 0, 0
 
PHP GD Image Resize
<?php $file = 'images.jpg'; $save = 'new.jpg'; list($width, $height) = getimagesize($file) ; $modwidth = 100; $modheight = 100; $tn = imagecreatetruecolor($modwidth, $modheight) ; $image = imagecreatefromjpeg
 
PHP GD transparent png
<?php $im = imagecreatetruecolor(55, 30); $red = imagecolorallocate($im, 255, 0, 0); $black = imagecolorallocate($im, 0, 0, 0); imagecolortransparent($im, $black); imagefilledrectangle($im, 4, 4, 50, 25, $red
 
PHP GD text on image
<?php header("Content-Type: image/jpeg"); $im = ImageCreateFromjpeg("images.jpg"); $black = ImageColorAllocate($im, 255, 255, 255); $start_x = 10; $start_y = 20; Imagettftext($im, 12, 0, $start
 
PHP GD imagecopyresampled
<?php $filename = 'image1.jpg'; $percent = 0.2; header('Content-type: image/jpeg'); list($width, $height) = getimagesize($filename); $new_width = $width * $percent; $new_height = $height * $percent; $image_p
 
PHP GD draw line
<?php header ("Content-type: image/jpeg"); $handle = ImageCreate (130, 50) or die ("Cannot Create image"); $bg_color = ImageColorAllocate ($handle, 255, 0, 0); $txt_color = ImageColorAllocate
 
PHP GD dashed line
<?php header("Content-type: image/png"); $width = 350; $height = 360; $im = ImageCreateTrueColor($width, $height); ImageAntiAlias($im, true); $white = ImageColorAllocate($im, 255, 255, 255
 
php gd blur
<?php $image = imagecreatetruecolor(225,225); imagestring($image, 10, 20, 16, 'Roseindia', 0x00ff00); $gaussian = array(array(1.0, 2.0, 1.0), array(2.0, 4.0, 2.0), array(1.0, 2.0, 1.0)); imageconvolution($image
 
Php gd hello world
<?php ini_set("display_errors", "1"); error_reporting(E_ALL); header('content-type: image/png'); $image = imagecreatetruecolor(300, 300); $dark_grey = imagecolorallocate($image, 102, 102, 102
 
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