Image upload component (cakephp)

原文出處：
http://labs.iamkoa.net/2007/10/23/image-upload-component-cakephp/

非常感謝Ben Borowski的fine work，在CakePHP中上傳圖片就像踢小孩屁股一樣容易。我已經在幾個項目中使用這個組件了,可以說這就是規則。
學習如何使用他，喜歡他，編寫他。
Dropping The Knowledge (pretext)
使用這個組件是最簡單並且允許你輸入選項來定製圖片。
/*
* upload
* - handle uploads of any type
* @ file - a file (file to upload) $_FILES[FILE_NAME]
* @ path - string (where to upload to)
* @ name [optional] - override the default file name
* @ rules [optional] - how to handle file types
* - rules['type'] = string ('resize','resizemin','resizecrop','crop')
* - rules['size'] = array (x, y) or single number
* - rules['output'] = string ('gif','png','jpg')
* - rules['quality'] = integer (quality of output image)
* @ allowed [optional] - allowed filetypes array
* - default: array ('jpg','jpeg','gif','png')
* ex:
* $result = $this->Upload->upload($file, 'uploads', null, array('type' => 'resizecrop', 'size' => array('400', '300'), 'output' => 'jpg'));
*