Linux Find Command find text in files

To find the text "JoomlArt" in all files in all subdirectories under the current dir, use this:

find . -type f -name "*" -exec grep -il JoomlArt {} \;

If you just wanted to search in php file for example, it would be this:

find . -type f -name "*.php" -exec grep -il JoomlArt {} \;

(grep is not needed in these examples)