在PHP中删除换行符和换行符

Question

CKEditor is adding new lines in my content that's entered into my database, which is fine, except that this data needs to be rendered to javascript as a single line of html.

In my PHP I have:

$tmpmaptext = $map['maptext'][$this->config->get('config_language_id')];
$tmpmaptext = html_entity_decode($tmpmaptext, ENT_QUOTES, 'UTF-8');
$tmpmaptext = str_replace(array('\r\n', '\n', '\r', '\t'), '', $tmpmaptext);
$tmpmaptext = str_replace(PHP_EOL, '', $tmpmaptext);

Which is pretty much everything I can find on how to remove new lines but I'm still ending up with this in the page:

var infowindow01 = new google.maps.InfoWindow({  
        content:  '<div><h2>Title</h2>

<p>Address line 1,<br />
Address line 2</p>

<p>phone number</p>

<p><a href="http://www.example.com" target="_blank">www.example.com</a></p>
</div>'

How can I get all these new lines out without removing that normal spacing between characters?

Answer 1

I think it's because you're using single-quotes in str_replace which will search for the string '\\n' (slash n). If you use double-quotes it will convert \\n to the newline character...

$maptext = '<div><h2>Title</h2>

<p>Address line 1,<br />
Address line 2</p>

<p>phone number</p>

<p><a href="http://www.example.com" target="_blank">www.example.com</a></p>
</div>';

$no_newlines = str_replace(array("\n", "\r\n", "\r", "\t", "    "), "", $maptext);

echo($no_newlines);

outputs:

<div><h2>Title</h2><p>Address line 1,<br />Address line 2</p><p>phone number</p><p><a href="http://www.example.com" target="_blank">www.example.com</a></p></div>

Answer 2

This did the trick:

$tmpmaptext = $map['maptext'][$this->config->get('config_language_id')];
$tmpmaptext = preg_replace('/(^[\r\n]*|[\r\n]+)[\s\t]*[\r\n]+/', '', $tmpmaptext);

Was able to remove all the rest and it renders perfectly now.