need help with using stristr

I need help return everything after "I can read." I understand that this will search the string and find whats in the array $check but how do I make it check and then return all whats found after "I开发者_高级运维 can read"?

$string = "I can read. I can count. I can spell.";
$check = array("I can count.", "I can't count.");
$find = stristr($string, $check, true);
echo $find;

$find = 'I can read.';
$string = '[...]';

echo substr($string,stripos($string,$find)+strlen($find));

Here is what the docs say the second parameter (needle) of stistr:

If needle is not a string, it is converted to an integer and applied as the ordinal value of a character.

Then you have to define $check as follow:

$check = "I can read";

you do not need the third parameter if you want to get the substring after $check, documentation states:

If TRUE, stristr() returns the part of the haystack before the first occurrence of the needle.

That's why you have to call stristr with only two arguments:

$find = stristr($string, $check);