guardar imaqen.php con .jpg

[Ghosty]

<?php
//If GD library is not installed, say sorry
if(!function_exists("imagecreate")) die("Sorry, you need GD library to run this example");
//Capture Post data
$data = explode(",", $_POST['img']);
$width = $_POST['width'];
$height = $_POST['height'];
$nombre = $_POST ['nombre'];
//Allocate image
$image=(function_exists("imagecreatetruecolor"))?i magecreatetruecolor( $width ,$height ):imagecreate( $width ,$height );
imagefill($image, 0, 0, 0xFFFFFF);
//Copy pixels
$i = 0;
for($x=0; $x<=$width; $x++){
for($y=0; $y<=$height; $y++){
$r = hexdec("0x".substr( $data[$i] , 2 , 2 ));
$g = hexdec("0x".substr( $data[$i] , 4 , 2 ));
$b = hexdec("0x".substr( $data[$i++] , 6 , 2 ));
$color = imagecolorallocate($image, $r, $g, $b);
imagesetpixel ($image,$x,$y,$color);
}
}