I then tried to upload a plugin to "lib/plugins" but i can't seem to figure out how to access the output - I only get "Array"!
I have:
Code: Select all
{$imagesize = "{getjpegsize url=$my_url}"}
<pre>{$imagesize}</pre>I've also tried {$imagesize[0]} but then i only get "A".
So i'm clearly missing something but what?
My plugin file:
Code: Select all
// Retrieve JPEG width and height without downloading/reading entire image.
function smarty_cms_function_getjpegsize($params, &$smarty) {
$img_loc = $params['url'];
$handle = fopen($img_loc, "rb") or die("Invalid file stream.");
$new_block = NULL;
if(!feof($handle)) {
$new_block = fread($handle, 32);
$i = 0;
if($new_block[$i]=="\xFF" && $new_block[$i+1]=="\xD8" && $new_block[$i+2]=="\xFF" && $new_block[$i+3]=="\xE0") {
$i += 4;
if($new_block[$i+2]=="\x4A" && $new_block[$i+3]=="\x46" && $new_block[$i+4]=="\x49" && $new_block[$i+5]=="\x46" && $new_block[$i+6]=="\x00") {
// Read block size and skip ahead to begin cycling through blocks in search of SOF marker
$block_size = unpack("H*", $new_block[$i] . $new_block[$i+1]);
$block_size = hexdec($block_size[1]);
while(!feof($handle)) {
$i += $block_size;
$new_block .= fread($handle, $block_size);
if($new_block[$i]=="\xFF") {
// New block detected, check for SOF marker
$sof_marker = array("\xC0", "\xC1", "\xC2", "\xC3", "\xC5", "\xC6", "\xC7", "\xC8", "\xC9", "\xCA", "\xCB", "\xCD", "\xCE", "\xCF");
if(in_array($new_block[$i+1], $sof_marker)) {
// SOF marker detected. Width and height information is contained in bytes 4-7 after this byte.
$size_data = $new_block[$i+2] . $new_block[$i+3] . $new_block[$i+4] . $new_block[$i+5] . $new_block[$i+6] . $new_block[$i+7] . $new_block[$i+8];
$unpacked = unpack("H*", $size_data);
$unpacked = $unpacked[1];
$height = hexdec($unpacked[6] . $unpacked[7] . $unpacked[8] . $unpacked[9]);
$width = hexdec($unpacked[10] . $unpacked[11] . $unpacked[12] . $unpacked[13]);
return array($width, $height);
} else {
// Skip block marker and read block size
$i += 2;
$block_size = unpack("H*", $new_block[$i] . $new_block[$i+1]);
$block_size = hexdec($block_size[1]);
}
} else {
return FALSE;
}
}
}
}
}
return FALSE;
}
