|substr||The substring to look for in the string.|
This function will return the character position of an instance
of a sub-string within a string, or 0 if it's not found at all. One
use for this is for filtering words that may be considered
offensive, or for finding the correct place to insert some text
into another string.
if string_pos(",", text) != 0
string_insert(name, text, string_pos(",", text));
The above code searches the string "text" for a comma, and if it finds one it inserts the substring "name" at that position.