Image crop and resize with php

basically i have a large image 500x 500, i wana resize it to a smaller size, but the quality will stays, means image will not be pixelated or distorted. i am using php, below are my code, but i am having problems with it, would appreciated if some1 code help me out and give me some advices.

$nw = 100;
$nh = 100;
$source = "http://img58.imageshack.us/img58/9644/400pxcodeblueip7.jpg";
$stype = "jpg";
$dest ="";
 
    $size = getimagesize($source);
    $w = $size[0];
    $h = $size[1];
 
    switch($stype) {
        case 'gif':
        $simg = imagecreatefromgif($source);
        break;
        case 'jpg':
        $simg = imagecreatefromjpeg($source);
        break;
        case 'png':
        $simg = imagecreatefrompng($source);
        break;
    }
 
    $dimg = imagecreatetruecolor($nw, $nh);
 
    $wm = $w/$nw;
    $hm = $h/$nh;
 
    $h_height = $nh/2;
    $w_height = $nw/2;
 
    if($w> $h) {
 
        $adjusted_width = $w / $hm;
        $half_width = $adjusted_width / 2;
        $int_width = $half_width - $w_height;
 
        imagecopyresampled($dimg,$simg,-$int_width,0,0,0,$adjusted_width,$nh,$w,$h);
 
    } elseif(($w <$h) || ($w == $h)) {
 
        $adjusted_height = $h / $wm;
        $half_height = $adjusted_height / 2;
        $int_height = $half_height - $h_height;
 
        imagecopyresampled($dimg,$simg,0,-$int_height,0,0,$nw,$adjusted_height,$w,$h);
 
    } else {
        imagecopyresampled($dimg,$simg,0,0,0,0,$nw,$nh,$w,$h);
    }
 
    imagejpeg($dimg,$dest,100);

PHP:

i dont know why, when i preview it, it give me all kinds of weird coding.. like the below.

ÿØÿàJFIF



ÿþ¿ËëŸ^õÂ9#hÝUÑÃ,Šê]a•”‚Y~òWGùý?ü—ፑgð7Ç_ÛWá¤ØýËø_öÄøñ®[Z€Ño¥üMñÄ‘s•†m6h°”(6Å’[¿Øö‡ÒAOÿÁM¿l &%É‚ÛǾý–¾([#à…ÃœjŸ³þ¯\D>PÑË®‰J‚ ûœ¹ü9¨µñY5«”Z¶×º\Ï¿G¶Ú£õcÏ¿h/ØÃ…~ñö¡ûN~Áž2³øûA; Ïx&xÃœ|øñ¿Ìú?ü-ú­ÜªýžÃÆ:]¼Z•›´iq$¶ŠÑWkû1ÁE¼ñ;Ã…ð¢h ê?³WíM¢2Xë_ |z~æx’ò?—ûKáÇŠ¦Xôoiš‰G¸ÓmínΡ=¶^Þ´Šicêô_€·ž-´:·íïáiVz†•vd¸ý¼#¦x‡P´´»©éz–«§|TFkmJÇ6âçLð¾—{krVæ;‚ŠÐ?ûlÛ~ÎÚ'ÃûOöÊñ/ìÇ©éâÊãKðíÏÄ?k'‹$ºŸ÷±ÙøFç@ñGˆ¼|·ò]$RÅÿU„º”S"Ïm›åµ q“ömº¶I§N2ºÕY>d›K{Y.ϲk[­žÖìú/^‡é¬n$Pàðyµ½9Ç9â£ò86x<ÿ\ñíõ Žy¯æ Á?·GíiðNÏö{ð‡ÃÏ‚~/ñ·ÁoøƒÇÞøauâgM‹ì¾O¨xjöûVÖþ \ø{ƺW‡|<ÏáýV{â-Ž…§Yé— ºþ¤ÈÚ2þ°]x³öÐø‡ðòêýü7ÿ úÛÅ>šëK¾ø9iðïÆ~4ÐãÕ´ã-þŸªüHø£áÿ¾³`'ŽaøGS±k˜Ê—

Code (markup):

 

You need to set the Content-type...

e.g.

header('Content-type: image/png');

 

hi, so i add it above imagejpeg($dimg,$dest,100); ?

 

Yeah that should work, anywhere before something is output

Dan

 

hi, it give me this error.. Cannot modify header information - headers already sent by

 

headers_sent($filename, $linenum);
echo 'Headers sent at: ' , $filename , ' ' , $linenum;

PHP:

Remember, you must set headers before ANY output at all. Where's it sending output on yours? Move the header line above that one.

 

Hi Folks


This is Shaik
Actually I have applied the image croppied functionality. Its working fine in local system, but when I apply the same things in server its not working.


Can any one help me to resolve my issue.


Thanks

 

@mussarath - try not to duplicate your post or dig up really old threads, I've responded to your new one in the same forum.