I've encountered some strange behavior with PHP. I have a string of text from a <textarea/>
input and it seems that:
$text = str_replace(array("\r\n", "\r", "\n"), null, $text);
successfully removes the newlines, whereas
$text = str_replace("\n", " ", $text)
$text = str_replace("\r\n", " ", $text)
$text = str_replace("\r", " ", $text)
EDIT: the three str_replace calls above are for \\n, \\r\\n, and \\r
does NOT successfully remove newlines. I even tried adding:
$text = str_replace(PHP_EOL, " ", $text);
but it doesn't fix the problem. I know I'm replacing the newlines with a space instead of null, but I would expect this to also work. After doing the 3-4 str_replace() calls, if I:
echo nl2br($text);
it does in fact find some remaining newline characters.
Any ideas?
Text coming from an textarea ALWAYS has \\r\\n
linebreaks.
So you should just do $text = str_replace("\\r\\n", '', $text);
See the spec for more info.
You should use:
$text = str_replace("\r\n", " ", $text)
$text = str_replace("\r", " ", $text)
$text = str_replace("\n", " ", $text)
or
$text = str_replace("\r\n", null, $text)
$text = str_replace("\r", null, $text)
$text = str_replace("\n", null, $text)
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