Question

I want to replace linebreaks with ' ' in PHP. Somehow I can’t get it to work on this json encoded string [[0,"Hello World"],[1,"s\n"]] with $x = preg_replace('/\r\n|\r|\n\r|\n/m', ' ', $x);.

I’m out of ideas. And i know that the php code works with none-json encoded strings. Any ideas to fix this problem

Forgot this:

When I input the string as $xthe function or php code returns the same string. Instead of replacing \n with ' '.

I have also tried all relevant problems in Stackoverflow. none of them successful

Answer 1

preg_replace will try to parse the ‘\n’ as an actual newline character, so you need some more escaping in there.

$x = preg_replace('/\\\r\\\n|\\\r|\\\n\\\r|\\\n/m', ' ', $x);

This is all kind of ugly though. Is there a reason you can’t do a replace in the actual decoded strings instead?