impossible to escape single quotes in XML
Question
please help me with this issue. I have a php file which generates XML. I have the following code that I can not escape a JS script within XML as follows:
$xml_after='<html>'.htmlspecialchars('
<div class="options" id="options_'.$tables_row['id'].'">
<a class="insidetable" href="" title="'.$lang['delete'].'"
onClick="show_confirmation(\''.$messages['delete_table'].'\',\''.$lang['close'].'\',hide_element(\'confirmation\');\''.$lang['delete'].'\',remove_table(\''.$tables_row['id'].'\');hide_element(\'confirmation\');\');return false;\" ><img src="../images/interface/icons/delete.png" />
</a></div>').'</html>';
The problem is in onclick functions.. Please help, full day losted already , thank you
2 answers
solution1
0 2013-12-02 14:19:17
Be aware that htmlspecialchars() escapes < and > , too. You have to use it on each value separately, not on the complete html fragment.
htmlspecialchars() has an option that escapes all quotes.
var_dump(htmlspecialchars("Escaping: <>&'\"", ENT_QUOTES));
Ouptut:
string(35) "Escaping: <>&'""
But it would be better to use DOM and let it take care of the escaping.
Additionally, I suggest using data-* attributes in HTML. The Javascript can read the attributes and bind the logic to the elements. This separates the actual JS logic from the HTML.
solution2
0 2013-12-02 16:18:06
I think your code is incorrectly formatted
$xml_after='<html>'.htmlspecialchars('<div class="options"
id="options_'.$tables_row['id'].'">
<a class="insidetable" href="" title="'.$lang['delete'].'"
onClick="
show_confirmation(\''.$messages['delete_table'].'\',\''.$lang['close'].'
\', hide_element(\'confirmation\');\''.$lang['delete'].'
\', remove_table(\''.$tables_row['id'].'\');
hide_element(\'confirmation
\');
\');return false;\" >
<img src="../images/interface/icons/delete.png" />
</a></div>').'</html>';
after each of the functions inside the show_confirmation functions you have a ; which isn't valid in a function calls parameter list
On the last line of the onClick function:
\');\');return false;\" >
The second \\' is unmatched and the double quote \\" shouldn't be escaped as far as I can see change that and maybe it will work for you.
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