check whether a string contains HTML elements

[arathi]

Hi

I want to check whether a string  contains HTML elements. Is there is any function to check whether a string contains HTML elements.

[ToonMariner]

you could compare the string with itself after tags have been removed if they are identical then no html is in teh string

 

if (strcmp($string, strip_tags($string)) == 0)
{
// no tags found
}
else
{
// tags found
}

[ajaylulia]

You can also use Regular Expression, following is an example for the same.

<?
$str = "<p> helo </p><b>je</b>";

echo $str;

echo preg_match ('/<[^>]*>/', $str);
?>

[BlueSkyIS]

^^ except this would also strip non-HTML. i suggest use of the first method over the second.

[effigy]

^^ except this would also strip non-HTML. i suggest use of the first method over the second.

 

preg_match does not change the string.

[BlueSkyIS]

true. what i meant was that the preg_match as written would match entities that are not necessarily HTML. conversely, strip_tags is meant to match only HTML tags.

[ajaylulia]

correct, preg_match will only match the string however, preg_replace will do the magic.

 

Use Following code to remove the html links:

 

<?
$str = "<p> helo </p><b>je</b>";

echo $str;

echo preg_replace ('/<[^>]*>/', '', $str);
?>

[BlueSkyIS]

yes, but i repeat. That code will also match NON-HTML characters. For instance: <[email protected]>

 

or <XML>

 

or <something else which isn't HTML>

[ToonMariner]

strip tags removes php and html - if the grey matter serves...