finding values within strings

[real_illusions]

Hi all,I have an array of certain words and I want to see how many times they are used within a string.Was thinking of the strpos() function, but that only returns the first instance of a word/value within the string.Is there an easy way of doing this?

[iwato]

Is there an easy way of doing this?

This would be a good place to start: preg_match_all().Roddy

[real_illusions]

Cant quite get my head round RegEx.Basically need a way of finding how many heading tags are on a web page (<h1> thru to <h6>.Would a regex pattern like this "h.[1-6]" do the trick or is that completely in the wrong direction?

[real_illusions]

Nevermind...think I got it.$data = file_get_contents($url);$pattern = "/h1|h2|h3|h4|h5|h6]/";preg_match_all($pattern, $data, $headings);Now, how to count the results in the array....

[real_illusions]

solved :)This echos out a multidimensional array, so the normal count ($array); doesn't work. You need to do this: count( $array, COUNT_RECURSIVE ); instead.

[boen_robot]

To avoid matching literal text that says "h6", you might want to include at least the "<" in your regex, like:

$pattern = "/\<(h1|h2|h3|h4|h5|h6)/";

But keep in mind the $headings array would be altered a little by that change. Make sure you count it properly (var_dump it, inspect it... you'll see).