$array
=
array
(
0
=
100
,
"color
"
=
"red")
;
array_keys
($array)
;
/
/
vrací
array
(0
,
"color"
)
$array
=
array
("blue"
,
"red"
,
"green"
,
"blue"
,
"blue")
;
array_keys
($array
,
"blue")
;
/
/
vrací
array
(0
,
3
,
4
)
$array
=
array
("color
"
=
array("blue"
,
"red"
,
"green")
,
"size
"
=
array("small"
,
"medium"
,
"large"))
;
array_keys
($array)
;
/
/
vrací
array
("color"
,
"size"
)
|