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
positive
,
the
returned
string
will
start
at
the
start
'
th
position
in
string
,
counting
from
zero
.
דוגמה
1
.
$rest
=
substr(
"abcdef"
,
1)
;
/
/
returns
"bcdef
"
$rest
=
substr("abcdef"
,
1
,
3)
;
/
/
returns
"bcd
"
$rest
=
substr("abcdef"
,
0
,
4)
;
/
/
returns
"abcd
"
$rest
=
substr("abcdef"
,
0
,
8)
;
/
/
returns
"abcdef
"
|
|
דוגמה
2
.
$rest
=
substr(
"abcdef"
,
-1)
;
/
/
returns
"f
"
$rest
=
substr("abcdef"
,
-2)
;
/
/
returns
"ef
"
$rest
=
substr("abcdef"
,
-3
,
1)
;
/
/
returns
"d
"
|
|
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
.
דוגמה
3
.
$rest
=
substr(
"abcdef"
,
0
,
-1)
;
/
/
returns
"abcde
"
$rest
=
substr("abcdef"
,
2
,
-1)
;
/
/
returns
"cde
"
$rest
=
substr("abcdef"
,
4
,
-4)
;
/
/
returns
"
"
$rest
=
substr("abcdef"
,
-3
,
-1)
;
/
/
returns
"de
"
|
|