PHP Simple way to replace or remove empty lines with str_replace

Question

$line-out = str_replace('\r', '', str_replace('\n', '', $line-in));

The above works for me but, I saw a [\n\r] example somewhere and I cannot seem to find it.

I just want to get rid any blank lines. The above is in a foreach loop.

Thanks for teaching.

Answer 1

You shouldn't use - in variable names ;)

$line_out = preg_replace('/[\n\r]+/', '', $line_in);
$line_out = str_replace(array("\n", "\r"), '', $line_in);

Manual entries:

• http://php.net/manual/en/function.preg-replace.php
• http://php.net/manual/en/function.str-replace.php

Answer 2

str_replace can be passed an array as:

$line_out = str_replace(array("\r","\n"), '', $line_in);