Posted by Bob Stearns on 06/15/20 11:40

Jim Carlock wrote:
> Does PHP provide a function to extract the rightmost characters
> from a string?
>
> For example, the VB/ASP equivalent...
>
> sStateAbbr = Right$(sCityState, 2)
>
> Thanks.
>
> Jim Carlock
> Post replies to the group.
>
>

From the PHP manual/String Functions/substr (start at
http://php.benscom.com/manual/en/). Note paragraph highlighted with
asterisks.

substr

(PHP 3, PHP 4, PHP 5)
substr -- Return part of a string
Description
string substr ( string string, int start [, int length] )

substr() returns the portion of string specified by the start and length
parameters.

If start is non-negative, the returned string will start at the start'th
position in string, counting from zero. For instance, in the string
'abcdef', the character at position 0 is 'a', the character at position
2 is 'c', and so forth.

********************************************************************
If start is negative, the returned string will start at the start'th
character from the end of string.
********************************************************************

If length is given and is positive, the string returned will contain
at most length characters beginning from start (depending on the length
of string). If string is less than or equal to start characters long,
FALSE will be returned.

If length is given and is negative, then that many characters will be
omitted from the end of string (after the start position has been
calculated when a start is negative). If start denotes a position beyond
this truncation, an empty string will be returned.

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