In-depth discussion & quot; & amp; lt; br/& amp; gt; & quot; and & q_PHP tutorial-php Tutorial

In-depth discussion of & amp; quot; & amp; lt; br & amp; gt; & amp; quot; and & amp; q. Rn is the line feed of the output HTML code. the effect the customer sees is not line feed. The opposite is true for the br: I am content rn, I am content br, I am content \ r \ n is the HTML code line feed output, and the effect the customer sees is not a line break.

The opposite
Effect:
I am content \ r \ n I am content
I am content
I am content
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\ R: The carriage return (acⅱ: 13 or 0x0d) is what we often call a hard carriage return.
\ N indicates a line feed (acⅱ: 10 or 0x0a), which is a soft carriage return.

On the page, the two cannot see the effect. right-click to view the source file and you can see the code line feed.
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If it is output to the browser, use

If it is output to your own file, use "\ n" and "\ r \ n" in windows"
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\ N is like creating a webpage in DreamWeaver. press enter in the source code to wrap the source code.
Is the output (HTML markup language), which is interpreted as a line break in HTML. \ N is used to wrap the source code. after the input, you can view the HTML source code to see a line break. The HTML interpreter (browser) thinks it is useless, it is displayed in the same way.
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\ N is a line feed of source code!

It is a line break on the webpage !!
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Appendix: in-depth explanation of PHP nl2br () formatting output

Bytes. Br/the opposite effect: I am content \ r \ n I am content br/I am content ========================== ====...