62 lines
1.7 KiB
PHP
62 lines
1.7 KiB
PHP
<?php
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/**
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* Get the path of a generated thumbnail for any given image
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*
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* @param string $source
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* @param int $width
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* @param int $height
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* @param boolean $absolute
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* @return string
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*/
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function thumbnail_path($source, $width, $height, $absolute = false)
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{
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$thumbnails_dir = sfConfig::get('app_sfThumbnail_thumbnails_dir', 'uploads/thumbnails');
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$width = intval($width);
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$height = intval($height);
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if (substr($source, 0, 1) == '/') {
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$realpath = sfConfig::get('sf_web_dir') . $source;
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} else {
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$realpath = sfConfig::get('sf_web_dir') . '/images/' . $source;
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}
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$real_dir = dirname($realpath);
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$thumb_dir = '/' . $thumbnails_dir . substr($real_dir, strlen(sfConfig::get('sf_web_dir')));
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$thumb_name = preg_replace('/^(.*?)(\..+)?$/', '$1_' . $width . 'x' . $height . '$2', basename($source));
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$img_from = $realpath;
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$thumb = $thumb_dir . '/' . $thumb_name;
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$img_to = sfConfig::get('sf_web_dir') . $thumb;
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if (!is_dir(dirname($img_to))) {
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if (!mkdir(dirname($img_to), 0777, true)) {
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throw new Exception('Cannot create directory for thumbnail : ' . $img_to);
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}
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}
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if (!is_file($img_to) || filemtime($img_from) > filemtime($img_to)) {
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$thumbnail = new sfThumbnail($width, $height);
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$thumbnail->loadFile($img_from);
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$thumbnail->save($img_to);
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}
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return image_path($thumb, $absolute);
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}
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/**
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* Get the <img> tag to include a thumbnail into your web page
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*
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* @param string $source
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* @param int $width
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* @param int $height
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* @param mixed $options
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* @return string
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*/
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function thumbnail_tag($source, $width, $height, $options = array())
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{
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$img_src = thumbnail_path($source, $width, $height, false);
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return image_tag($img_src, $options);
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}
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