substring/4—retrieve a substring of a specified length beginning at a specified offset
The substring/4
function retrieves a substring of a specified length beginning at a specified offset.
$NEWSTR=substring($STR,$SKIP,$LEN)
substring/4 arguments
Argument | Mode | Type | Description |
---|---|---|---|
| Input | STRING | Specifies the base string within which you want to retrieve another partial string that starts after |
| Input | INTEGER | Specifies the number of characters to skip in the base string before |
| Input | INTEGER | Specifies the length of |
| Output | STRING | Retrieved string |
Use the substring/4
function to retrieve part of the string $STR
into $NEWSTR
. The retrieved part of the string starts $SKIP
characters from the start of $STR
and is $LEN
characters long.
substring/4 example
$MM = substring($YYYYMMDD,4,2);
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