Perl Substr
substr
This function supports three sets of passed values as follows:
[perl] substr (STRING,OFFSET,LEN,REPLACEMENT) substr (STRING,OFFSET,LEN) substr (STRING,OFFSET) [/perl]
The function:
substr (STRING,OFFSET)
returns all characters in the string after the designated offset from the start of the passed string. The function:
substr (STRING,OFFSET,LEN)
returns all characters in the string after the designated offset from the start of the passed string up to the number of characters designated by LEN. The function:
substr (STRING,OFFSET,LEN,REPLACEMENT)
Replaces the part of the string beginning at OFFSET of the length LEN with the REPLACEMENT string.
