Use of newline Php_eol constants in PHP

Line breaks are different in different operating systems.

Line breaks under Windows: \ r \ n

Line break under Linux: \ n

Line break under Mac: \ r

So considering the expansion of the code, the handling of the line character seems to be getting into trouble. Fortunately, PHP has helped us out with this tedious thing:).

PHP defines a constant: Php_eol, which corresponds to different characters in different operating systems (that is, the corresponding characters listed above).

So, the next time we need to use a newline character, or a line break to do the processing, Php_eol!

Example:

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