WMPRO, WMMINI FW >= 1.0 WMMEGA FW >= 2.0
Return the length of a string
$input: A string
Integer number of bytes in the string (it's length), which can be 0 if the input string is empty
charat() - Return the ASCII code for a character in a string at an index
strpos() - Return the position of the first occurrence of a needle in a haystack
strrpos() - Return the position of the last occurrence of a needle in a haystack
strtolower() - Return the lowercase version of a string
strtoupper() - Return the UPPERCASE version of a string
substr() - Return part of a string
ucfirst() - Convert a string to lowercase except for the first character