$description = strip_tags($_POST['description']);
echo $description;
可以写成如下：
echo strip_tags($_POST['description']);
Rebuttal: In reference to the comment about “doubling the memory,” this actually is a common misconception. PHP implements “copy-on-write” memory management. This basically means that you can assign a value to as many variables as you like without having to worry about the data actually being copied. While it's arguable that the “Good” example exemplified above might make for cleaner code, I highly doubt that it's any quicker.
也就是说PHP实现“copy-on-write” 的内存管理方式，上面第一种代码并不会存在占用双倍内存的情况。因此Rebuttal严重怀疑第二种方式的代码是否真的比前面的快。
30.更新到最新版本的PHP
31.减少数据库查询次数
32.勇敢地提问
像StackOverflow等都是好去处。
您可能感兴趣的文章: