Display formatted user input_PHP tutorial

这个文档描述如何安全显示的有格式的用户输入。我们将讨论没有经过过滤的输出的危险，给出一个安全的显示格式化输出的方法。
没有过滤输出的危险
如果你仅仅获得用户的输入然后显示它，你可能会破坏你的输出页面，如一些人能恶意地在他们提交的输入框中嵌入
javascript脚本：
This is my comment.

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