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unescaped & or unknown entity "&..."

Posted on 2006-11-28
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Last Modified: 2006-12-20
Hi,

If I'm using a php / mysql / databse program & have URLs that contain lots of ampersands, is there any way to get this to be considered not an error.  Is it an error?  Using Firefox's code checker I see

unescaped & or unknown entity "&..."

Thanks!!

Ubee...
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Question by:a466-ub52
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by:Steggs
ID: 18028536
Replace & with &
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VoteyDisciple earned 400 total points
ID: 18028743
ANYWHERE in an HTML page you have an & it must be written as &

Thus the following varieties of HTML are all correct:
<a href="useful.php?foo=1&amp;bar=2">Ampersand-tastic!</a>
<input type="text" value="Hello &amp; Goodbye" />
<p>"You &amp; I" is more correct than "I &amp; You"</p>


Of course, when actually typing a URL into the address bar of your browser, that's not HTML.  A regular & is correct.  It's just that the browser when interpreting any chunk of HTML will treat & as the beginning of an HTML entity, so you've got to spell it all out.

Now, since you've said you're using PHP and MySQL I imagine you're selecting these data from the database, in which case all you really need to do to make sure it's correct is call htmlentities():

Instead of   echo $string;   you'd do   echo htmlentities($string);   and PHP will do all the conversions for you (including quote marks and other stuff that can screw up a page)


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by:a466-ub52
ID: 18174563
Wow!!  Thanks... :) : )
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