another image resize prob!

[Anon]

I currently use this code in a forum scenario to check wether the image is too wide and crops it to the determined maximum, $theimage is the url of the image posted from a form, problem is, it won't work with images linked from other sites, only those on my server... any ideas dudes?

list($width, $height) = GetImageSize("$theimage");

if ($width > '300') {
$newwidth = "300";
}
else {
$newwidth = $width;
}

[khaine]

You could just use the IMG properties in html. i.e. <IMG src="somepic.jpg" width=300 height=300>

Mark.

[Anon]

Problem with that is, if the user has a small image say 60x40 we don't want it to be 300 in width! only if they are over 300 do we need to cut it to 300 max.

[khaine]

oh i see your problem. does your code return the size of the remote image. even if it wont resize it. if it does you could always use that to output the height and width IMG tags. but only if it is a remote image. Something like.

list($width, $height) = GetImageSize("$theimage");

if ($width > '300' && strstr($theimage, "http") )
{
echo "<IMG height=300 width=300 src=\"".$theimage."\">";
}
else
{
echo "<IMG src=\"".$theimage."\">";
}

Mark.

[Anon]

I tried your code above, but the problem is that if I link an image from another server i the error "unable to open file" is returned. I am sure it must be possible.

[Anon]

If you are trying to get image size details for an image on another site then you need 2 things:
Firstly php version 4.0.5 or later, and secondly, when you request the info from GetImageSize you need to put in the absolute URL of the image you want the size info on. For Example:
"http://www.somesite.com/path_to_the_image"
for getimagesize to find the image you want the size of.

For more information see the getimagesize man page at php.net

Chris

[khaine]

Another way of doing it is.

<?
$theimage="http://212.19.87.14/clankhaine/images/head.gif";
$filename="head.gif";

$fpr=fopen($theimage,"r") or die();
$fpw=fopen($filename, "w") or die();

$imgin="";
while (!feof($fpr) )
{
$imgin.=fread($fpr, 100);
}
fwrite($fpw, $imgin);

fclose($fpr);
fclose($fpw);

$theimage=$filename;

list($height, $width)=getimagesize($theimage);

echo "height is ".$height."<BR>";
echo "width is ".$width."<BR>";

if ( $width > 300 )
{
$ratio=300/$width;
$height=$height/$ratio;
$width=300;
echo "<IMG height=".$height." width=".$width." src=\"".$theimage."\">";
}
else
{
echo "<IMG src=\"".$theimage."\">";
}

?>

Not an ideal way of doing it but it does work.

Mark.