Question

Is it possible to pop up window from a json line.

Example, this link works fine:

$json['msg'] = 'Welcome. Please, <a href="http://mylink/?chat_session='.$rows['id'].'">click here</a>!';

But when I tried to create a pop up for it, it says errors T string parsing, things like that.

For my pop up I tried using:

<script language="javascript" type="text/javascript"><!--function mbetter(url) {
newwindow=window.open(url,'name','height=600,width=550');
if (window.focus) {newwindow.focus()}
return false;}// --></script>

and for link

$json['msg'] = 'Welcome. Please, <a href="#" onClick="return mbetter('http://mylink/?chat_session='.$rows['id'].'')">click here</a>!';

What could be causing this issue?

Answer 1

This is a problem with escaping a string.

$json['msg'] = 'Welcome. Please, <a href="#" onClick="return mbetter('http://mylink/?chat_session='.$rows['id'].'')">click here</a>!';

Should be:

$json['msg'] = 'Welcome. Please, <a href="#" onClick="return mbetter(\'http://mylink/?chat_session='.$rows['id'].'\')">click here</a>!';

Notice how I have escaped the single quotes in your JavaScript with backslashes?

This is described in the PHP manual on the Strings page:

To specify a literal single quote, escape it with a backslash (). To
specify a literal backslash, double it (\). All other instances of
backslash will be treated as a literal backslash: this means that the
other escape sequences you might be used to, such as \r or \n, will be
output literally as specified rather than having any special meaning.