NXSL:substr

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Extracts the substring from string that begins at the nth character and is of length len.

Syntax

substr(string, n[, len]);

Parameters

string	Source string.
n	Starting character index for substring. The n must be a positive whole number. If n is greater than length(string), then empty string is returned.
len	Length of substring. If you omit length, the rest of the string is returned.

Return Value

Extracted substring.

Examples

substr("abcdef", 3, 2)		->	"cd"
substr("abcdef", 8)		->	""
substr("abcdef", 4)		->	"def"