Okay that was quicker than I thought. Here's the code to find the nth
occurrance of a string within a string:
function strnpos($string, $search, $nth) {
$count = 0;
$len = strlen($string);
$slen = strlen($search);
for ($i = 0; $i < $len; $i++) {
if (($i + $slen) > $len) { return FALSE; }
if (substr($string, $i, $slen) == $search) {
$count++;
if ($count == $nth) { return $i; }
}
}
if ($count != $nth) { return FALSE; }
}
It returns the STARTING POINT of the nth occurrance of the string. If you
are looking for the first occurrance of the word "test" and "test" covers
positions 10-13, the function returns 10, just like the built-in functions
strpos() and strrpos(). $string is the string to be searched; $search is
what you are searcing for; $nth is the number of the occurrance you are
looking for.
Hope you all can make use of this!
Mike Frazer
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