Solution to the problem of replacing line breaks with spaces

To solve the problem of replacing line breaks with spaces, replace space with & amp; nbsp; line breaks with & lt; br & gt; doubt: replace space with & quot; whether the \ s line break is \ n or the \ r \ n environment is in a non-IR browser. Statement of solution, all replaced at one time. When the content is set to $ txt, it is difficult to replace the space of the PHPcode line break
I want to replace spaces

Replace line breaks


Doubt:
Enter "" or \ s as a space when replacing

Whether the line break is \ n or \ r \ n

The environment is in a non-IR browser

Internet Explorer does not need to be considered.

Statement of solution, all replaced at one time.

Set content to $ txt

------ Solution --------------------

PHP code

Echo preg_replace (array ('//', '/[\ r \ n] +/'), array ('','
'), $ String );
------ Solution --------------------
$ Changeset = array ('\ r \ n' =>'
', ''=>' $ Nbsp ;');
$ Str = strtr ($ str, $ changeset );