PHP Course Summary 20161221

Today's course, the teacher mainly describes the use of recursive functions to traverse the directory function of the relevant content, and review the variables and functions related knowledge.

First, summary

1.php tags cannot be commented out. Because the browser recognizes PHP documents, PHP software requires two processing of PHP documents, the first processing is the PHP language (PHP tag content) into a static HTML language, so PHP tags can not be commented out.

2. Function die (): function terminates the entire PHP document program, no longer executes any commands. and can output text, such as Die ("Tomorrow, Hello"). function exit () with the same name.

Second, the programming process of traversing the directory function

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PHP Course Summary 20161221