[TYPO3] Optimized code for image resizing?

[Lasse Guldsborg]

Hi list

I am experiencing some extremely long load times (+60 seconds the first time 
an image is used) on my website, and I think it has something to do with the 
way I resize images in an extension I have made.

Can anyone point out if I can optimize my code for better load time 
performance? Or should I just blame my ISP ;o)

My TS setup is as so:

############# Polaroid Photo ###############
plugin.user_polaroidphoto_pi1 {
 displayimageCObject = IMAGE
 displayimageCObject.file.width = 276
 #displayimageCObject.file.height = 207
}


And my extension PHP is like this:


// Saves initial values of the image, to be used in the "click to enlarge" 
pop-up window.
$largepicture = "uploads/tx_userpolaroidphoto/".$indhold["picture"][0];
list($largepicture_width, $largepicture_height) = 
getimagesize($largepicture);

// Call to typoscript to resize image
$imgTSConfig = $this->conf['displayimageCObject.'];
$imgTSConfig['file'] = 
"uploads/tx_userpolaroidphoto/".$indhold["picture"][0];

// The image returns from TypoScript in the correct size
$picturefile_TS = $this->cObj->IMAGE($imgTSConfig);

// The image returns as a string in the var $picturefile_TS. This string is 
now split up in smaller pices.
$ny_streng = explode(" ", $picturefile_TS);

// First element in the new string is the path to the image (src="xxx")
$src = $ny_streng[1];

// " is removed
$ny_src = explode("\"", $src);

// The "pure" path to the image is put into a new var
$picture_path = $ny_src[1];

// Same procedure with the image width.
$width = $ny_streng[2];
$ny_width = explode("\"", $width);
$picture_width = $ny_width[1];

// Same procedure with the image height.
$height = $ny_streng[3];
$ny_height = explode("\"", $height);
$picture_height = $ny_height[1];

Best regards,
Lasse