Recursive search in the same field

[Anon]

Hello PHP Gurus,

I am trying to search for a text "CSC" in a text field.. It is possible that there may be 1 or more instance or nothing at all.  I am able to get only one even if there are more words that start with "CSC".  Currently I am using a code as follows :

$bugid = substr(strstr($solution, "CSCd"), 0, 10);

 can anyone show me how do I loop this within the same field ?

thanks in advance
Tejas

[Anon]

If you just need the count of substring matches, look at substr_count(), otherwise if you want to extract the word containing that pattern, then you need to use a regular expression, e.g.:

$regex = "/\W+(th\w+)\W+/";
$str = "I like this and that and those too";
preg_match_all($regex, $str, &$reg);
print_r($reg);

As you can see the $reg[1] array will contain all the matched words.

Check the PCRE and POSIX regular expression functions in the manual for more info.