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- <?php
- // RESIZE AN IMAGE PROPORTIONALLY AND CROP TO THE CENTER
- function resize_and_crop($original_image_url, $thumb_image_url, $thumb_w, $thumb_h, $quality = 100)
- {
- // ACQUIRE THE ORIGINAL IMAGE: http://php.net/manual/en/function.imagecreatefromjpeg.php
- $original = imagecreatefromjpeg($original_image_url);
- if (!$original) return FALSE;
- // GET ORIGINAL IMAGE DIMENSIONS
- list($original_w, $original_h) = getimagesize($original_image_url);
- // RESIZE IMAGE AND PRESERVE PROPORTIONS
- $thumb_w_resize = $thumb_w;
- $thumb_h_resize = $thumb_h;
- if ($original_w > $original_h)
- {
- $thumb_h_ratio = $thumb_h / $original_h;
- $thumb_w_resize = (int)round($original_w * $thumb_h_ratio);
- }
- else
- {
- $thumb_w_ratio = $thumb_w / $original_w;
- $thumb_h_resize = (int)round($original_h * $thumb_w_ratio);
- }
- if ($thumb_w_resize < $thumb_w)
- {
- $thumb_h_ratio = $thumb_w / $thumb_w_resize;
- $thumb_h_resize = (int)round($thumb_h * $thumb_h_ratio);
- $thumb_w_resize = $thumb_w;
- }
- // CREATE THE PROPORTIONAL IMAGE RESOURCE
- $thumb = imagecreatetruecolor($thumb_w_resize, $thumb_h_resize);
- if (!imagecopyresampled($thumb, $original, 0,0,0,0, $thumb_w_resize, $thumb_h_resize, $original_w, $original_h)) return FALSE;
- // ACTIVATE THIS TO STORE THE INTERMEDIATE IMAGE
- // imagejpeg($thumb, 'RAY_temp_' . $thumb_w_resize . 'x' . $thumb_h_resize . '.jpg', 100);
- // CREATE THE CENTERED CROPPED IMAGE TO THE SPECIFIED DIMENSIONS
- $final = imagecreatetruecolor($thumb_w, $thumb_h);
- $thumb_w_offset = 0;
- $thumb_h_offset = 0;
- if ($thumb_w < $thumb_w_resize)
- {
- $thumb_w_offset = (int)round(($thumb_w_resize - $thumb_w) / 2);
- }
- else
- {
- $thumb_h_offset = (int)round(($thumb_h_resize - $thumb_h) / 2);
- }
- if (!imagecopy($final, $thumb, 0,0, $thumb_w_offset, $thumb_h_offset, $thumb_w_resize, $thumb_h_resize)) return FALSE;
- // STORE THE FINAL IMAGE - WILL OVERWRITE $thumb_image_url
- if (!imagejpeg($final, $thumb_image_url, $quality)) return FALSE;
- return TRUE;
- }
- echo '<a target="_blank" href="banner.jpg">Banner Original</a><br/>';
- resize_and_crop('banner.jpg', 'banner_100x100.jpg', 100, 100);
- echo '<a target="_blank" href="banner_100x100.jpg">100x100</a><br/>';
- resize_and_crop('banner.jpg', 'banner_200x100.jpg', 200, 100);
- echo '<a target="_blank" href="banner_200x100.jpg">200x100</a><br/>';
- resize_and_crop('banner.jpg', 'banner_200x300.jpg', 200, 300);
- echo '<a target="_blank" href="banner_200x300.jpg">200x300</a><br/>';
- ?>
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