Match words from an array to a string?

[gergy008]

Dead simple, I know it is but I'm still a little newbie. I have this chat box, and I don't want people to be able to swear in it so I need help making a function where you call the string as an argument and it returns true if the string has any words from an array in it, Even if the word is walking and not just walk. If it's true I can replace the entire string with something else.

 

Can someone tell me what functions I need? I prefer you didn't do it all for me I need to learn 

 

Thanks in advance!

[BlueSkyIS]

make the array. loop over the array, seeing whether each word is within the string. you can use strpos, stristr() or other functions to see if one string is within another one.

[gergy008]

I made this:

 

$text = $_POST['text'];
$words=array('naughty words go here');
$match=false;
foreach($words as $word){
	$test=strpos($text, $word);
	if($test==true){
		$match=true;
	}
}

 

But yet $match remains false, So it isn't replacing the string... Does anyone know why it won't trigger?

[BlueSkyIS]

$words=array('naughty', 'words', 'go', 'here');

[gergy008]

$words=array('naughty', 'words', 'go', 'here');

 

Thats what I did, I seperated the naughty words like that yet it's still not triggering.

 

$words=array('*', '*', '*', '*', '*', '*', 'etc.');

[gergy008]

Solved: Human error. It was seeing if $matched was false not $match.