What to do if php r n does not wrap?

php The solution for r n not to wrap: First open the PHP file where r n does not wrap; then change the single quotes in the output code to double quotes to achieve normal line wrapping.

The operating environment of this article: windows7 system, PHP7.1 version, DELL G3 computer

\nNewline in php string The solution to the problem of invalid characters and unable to wrap lines

For example, the following code:

The code is as follows:

<?php
echo &#39;hello\n&#39;;
echo &#39;world&#39;;
?>

The newline character \n in the program will be output directly, The line break cannot be correct. The solution is to change the single quotes to double quotes:

The code is as follows:

<?php
echo "hello\n";
echo "world";
?>

That’s it! In fact, it is the difference between double quotes and single quotes in PHP. In a simple summary, variables in double quotes can be parsed, and single quotes are absolute strings.

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Note:

php Line breaks in different systems

Among different systems The implementation of line breaks is different

/n is used in linux and unix

MAC uses /r

window In order to reflect the difference from linux, it is /r/n

So the implementation methods are different on different platforms

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