php图片、文件上传

 1 if ($_FILES['img']['tmp_name']) {
 2     if ($_FILES['img']['size'] > 1000000) {
 3         $ctp->alert("错误：图片过大！");
 4         $ctp->goto("manage.php?type=active_add&id={$id}");
 5     }
 6     if (! in_array($_FILES['img']['type'], array('image/pjpeg', 'image/gif', 'image/x-png'))) {
 7         $ctp->alert("错误：请上传jpeg/jif/png格式的图片！");
 8         $ctp->goto("manage.php?type=active_add&id={$id}");
 9     }
10     $typeArr = array('image/pjpeg' => '.jpg', 'image/gif' => '.gif', 'image/x-png' => '.png');
11     $uploadDir = 'uploads/active/'.date('YmdHis').$typeArr[$_FILES['img']['type']];
12     move_uploaded_file($_FILES['img']['tmp_name'], $uploadDir);
13 }