PHP watermark images on the fly -

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background

i have read through many sites including 1 solution. have watermark script until few months ago worked flawlessly. hosting provider performed routine updates , hosed script. made 1 adjustment it, worked. time, watermark script seems heavy on system resources, causing sorts of issues site including images not loading @ random, etc. currently, appears run site on php version 5.4 or version or 2 above , below it. running @ 5.4 if should help.

explanation

the script intended find image files specific location, pending on size, combine 1 of several png images on fly without overwriting original image.

the script

i have modified script in past week, minor performance improvement. i'm @ wits end, there further improvements script made or cleaner code. assistance appreciated.

files .htaccess, 3 jpg(s), , watermark.php script.

.htaccess 

    rewriterule ^(.*)wp-content/uploads/(.*) $1watermark.php?src=wp-content/uploads/$2

watermark.php

<?php $src = $_get['src'];      if(preg_match('/.gif/i',$src)) { $image = imagecreatefromgif($src); }     if(preg_match('/.png/i',$src)) { $image = imagecreatefrompng($src); }     if(preg_match('/.jpeg/i',$src)||preg_match('/.jpg/i',$src)) { $image = imagecreatefromjpeg($src); }     if (!$image) exit(); //  if (empty($images)) die();      if (imagesx($image) > 301 ) { $watermark = imagecreatefrompng('watermark.png'); }      // height greater 301 apply watermark 600x600 elseif (imagesx($image) > 175 ) { $watermark = imagecreatefrompng('watermarksm.png'); }    // height greater 175 apply small watermark 200x200                            else { $watermark = imagecreatefrompng('empty.png'); }          // apply dummy watermark resulting in none. 1x1  $dest_x = imagesx($image) - imagesx($watermark) - 0; $dest_y = imagesy($image) - imagesy($watermark) - 0;  imagecopy($image, $watermark, $dest_x, $dest_y, 0, 0, imagesx($watermark), imagesy($watermark)); header('content-type: image/jpeg');   imagejpeg($image); imagedestroy($image); imagedestroy($watermark);  //die(); ?>

a couple of things have tried not reflected in script following "minor" change.

if(preg_match('/.gif/i',$src)) if(preg_match('/\.gif$/i',$src))

another variation attempted in preg_match jpe$g , jp(|e)g$. change didn't seem in anyway , seemed hurt performance further.

again, guidance appreciated. thank in advance.

why don't once create watermarked version of images ? avoid server work each time image displayed on website, , gain in performance.

if reason need display original image, script check credential of viewer return image.


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