PHP code instance: Picture into HTML

PHP   <style> body{} a{display:inline-block;width:1px;height:1px </style> <?php function Createimfromfile ($path) {if (!is_file ($path)) {throw new Exception ("File: $path not found!"); $info = getimagesize ($path ); Switch ($info [2]) {Case 1://gif $tim = Imagecreatefromgif ($path); $w = Imagesx ($tim); $h = Imagesy ($tim); $im = Imagecrea Tetruecolor ($w, $h); Imagecopy ($im, $tim, 0,0,0,0, $w, $h); Imagedestroy ($tim); Break Case 2://jpg $im = Imagecreatefromjpeg ($path); Break Case 3://png $im = Imagecreatefrompng ($path); Break Default:throw New Exception ("not support file type. File: $path "); return $im; }   $im = Createimfromfile ("d:\\aa.jpg"); $w = Imagesx ($im); $h = Imagesy ($im); $str = "<div>"; for ($i = 0; $i < $h; $i + +) {$str. = "<div>" for ($j = 0; $j < $w; $j + +) {$rgb = Str_pad (Dechex imagecolorat ($im , $j, $i)), 6, "0", str_pad_left); $str. = "<a style= ' background:# $rgb ' ></a>"; $str. = "</div>"; } $str. = "</div>"; Imagedestroy ($im); Echo $str; /* $rgb = Imagecolorat ($im, 100, 100); $r = ($rgb >>) & 0xFF; $g = ($rgb >> 8) & 0xFF; $b = $rgb & 0xff;*/?>      . NET:       protected string tmp = "";       protected void Page_Load (object sender, EventArgs e) {        bitmap BM = new Bitmap ("d:\\aa.jpg");         int w = BM. Width;         int h = BM. Height;         stringbuilder sb = new StringBuilder ();         color C;        &NBSP;SB. Append ("<div>");         for (int i = 0; i < H; i++) {           &NBSP;SB. Append ("<div>");             for (int j = 0; J < W; J +) {         &NBSP ;     &NBSP;C = BM. GetPixel (J,i);  &nbsp             &NBSP;SB. Append (String. Format ("<a style= ' background:#{0}{1}{2} ' ></a>", V (C.R), V (C.G), V (C.B)));            &NBSP,            &NBSP;SB. Append ("<div>");        &NBSP}        &NBSP;SB. Append ("</div>");           tmp = sb. ToString ();    &nbsp}       private string V (int V) {        return string. Format ("{0:x}", V). PadLeft (2, ' 0 ');     }   After I had solved his confusion step-by-step, I found: It was just a joke! Another explanation: There is no direct use of createimagefromgif in PHP because:

Imagecolorat returns the color index (position in the palette) for
palette based image or the color value for true col or images.

Imagecreatefromjpeg creates true color images, always.
Imagecreatefromgif creates always palette based images and
imagecreatefrompng creates either palette or True color ima GES as PNG
supports both image types.

http://bugs.php.net/bug.php?id=40801