how to remove new lines and returns from php string?

Question

A php variable contains the following string:

<p>text</p>
<p>text2</p>
<ul>
<li>item1</li>
<li>item2</li>
</ul>

I want to remove all the new line characters in this string so the string will look like this:

<p>text</p><p>text2><ul><li>item1</li><li>item2</li></ul>

I've tried the following without success:

str_replace('\n', '', $str);
str_replace('\r', '', $str);
str_replace('\r\n\', '', $str);

Anyone knows how to fix this?

Answer 1

You need to place the \n in double quotes.
Inside single quotes it is treated as 2 characters '\' followed by 'n'

You need:

$str = str_replace("\n", '', $str);

A better alternative is to use PHP_EOL as:

$str = str_replace(PHP_EOL, '', $str);

Answer 2

You have to wrap \n or \r in "" not ''.

Answer 3

This should be like

str_replace("\n", '', $str);
str_replace("\r", '', $str);
str_replace("\r\n\", '', $str);

Answer 4

here you go $string = str_replace(PHP_EOL,null,$string) PHP_EOL is the cross platform Declaration for EndOfLine

Answer 5

And how would you replace all newlines ONLY within an unordered list

<ul>//replace all new line charcaters within this tags</ul>

so that only this would happen:

<p>text</p>
<p>text2</p>
<ul><li>item1</li><li>item2</li></ul>