Question

There is a user textarea input. I need to remove all new lines before saving (so it should be only one line).

I use

$text = str_replace("\r\n", "", $text);
$text = str_replace("\n", "", $text);

for this.

But one user entered text, that has new line, and it cannot be removed with that code.
I also tried \r\n and \r with no result.

I cannot copy it here, because as soon as I copy it, new line will be replaced with standard \n.

How can I remove this new line? Or how can I see what its character is?
It is saved in MySQL now.

Answer 1

Have you tried:

• RTRIM http://php.net/manual/en/function.rtrim.php : rtrim — Strip whitespace (or other characters) from the end of a string
• TRIM http://php.net/manual/en/function.trim.php : trim — Strip whitespace (or other characters) from the beginning and end of a string

After clarification

// Order of replacement
$str     = "Line 1\nLine 2\rLine 3\r\nLine 4\n";
$order   = array("\r\n", "\n", "\r");
$replace = '';

// Processes \r\n's first so they aren't converted twice.
$newstr = str_replace($order, $replace, $str);

This is direct from the PHP manual: http://php.net/manual/en/function.str-replace.php