In this article I've talked about the two basic security principles of PHP programming: filter input, escape output.
在这篇文章里我提到的PHP编程的两条基本安全原则是：过滤输入，转义输出。
All of the escape sequences that are valid for basic strings are also valid for multi-line basic strings.
基础字符串中的转义字符对多行基础字符串仍然有效。
All of the escape sequences that are valid for basic strings are also valid for multi-line basic strings.
基础字符串中的转义字符对多行基础字符串仍然有效。
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