Replacing multiple \r\n in php

Question

I'm having text like this:

some text \r\n \r\n\r\n\r\n\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n some text \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n some text \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n

I need to replace each block of multiple \r\n with just one  

I tried to use str_replace('\\r\\n',' ',$text); but I ended up with too many  

I need the final output to be like this:

some text some text some text 

Tim Pietzcker · Accepted Answer · 2013-11-10 12:43:23Z

6

Use a regex with a non-capturing group and quantifiers:

$result = preg_replace('/(?:\r\n *)+/', '<br />', $subject);

Explanation:

(?:   # Start a group which matches:
 \r\n # one newline combination
 [ ]* # followed by zero or more spaces
)+    # Repeat the entire group once or more, as many times as possible

answered Nov 10, 2013 at 12:43

Tim Pietzcker

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Community · Accepted Answer · 2023-11-17 20:33:26Z

2

Use regular expressions:

$output = preg_replace(',(\r\n)+,', '<br />', $input);

edited Nov 17, 2023 at 20:33

CommunityBot

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answered Nov 10, 2013 at 12:43

helmbert

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