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phptagshtml-escape-characters

Is there a PHP function to htmlspecialchars() everything except for certain tags?

It would be nice if I could call my_escape($text, '<p><b><i>') that escapes everything except all <p>, <b> and <i> tags. I'm looking for a generic solution where I can specify an arbitrary set of tags. Does this exist? If not what's the best approach to implement it?

Solution

  • in htmlspecialchars function it converts html tags to

    & to &amp;
" to &quot;
' to &#039;
< to &lt;
> to &gt;

    after convert you can do reverse to decode

    <?php
$test="<p><b><a>Test</b></a></p>";

$test = htmlspecialchars($test);

$test = str_replace("&lt;p&gt;", "<p>", $test);
$test = str_replace("&lt;i&gt;", "<i>", $test);
$test = str_replace("&lt;b&gt;", "<b>", $test);
$test = str_replace("&lt;/b&gt;", "</b>", $test);
$test = str_replace("&lt;/i&gt;", "</i>", $test);
$test = str_replace("&lt;/p&gt;", "</p>", $test);

echo $test;
?>