PHP Manual
Function Reference
Variable and Type Related Extensions
Arrays
Array Functions
array
array_all
array_any
array_change_key_case
array_chunk
array_column
array_combine
array_count_values
array_diff
array_diff_assoc
array_diff_key
array_diff_uassoc
array_diff_ukey
array_fill
array_fill_keys
array_filter
array_find
array_find_key
array_flip
array_intersect
array_intersect_assoc
array_intersect_key
array_intersect_uassoc
array_intersect_ukey
array_is_list
array_key_exists
array_key_first
array_key_last
array_keys
array_map
array_merge
array_merge_recursive
array_multisort
array_pad
array_pop
array_product
array_push
array_rand
array_reduce
array_replace
array_replace_recursive
array_reverse
array_search
array_shift
array_slice
array_splice
array_sum
array_udiff
array_udiff_assoc
array_udiff_uassoc
array_uintersect
array_uintersect_assoc
array_uintersect_uassoc
array_unique
array_unshift
array_values
array_walk
array_walk_recursive
arsort
asort
compact
count
current
each
end
extract
in_array
key
key_exists
krsort
ksort
list
natcasesort
natsort
next
pos
prev
range
reset
rsort
shuffle
sizeof
sort
uasort
uksort
usort
key
krsort
Array Functions
PHP Manual
key_exists
Alias of
array_key_exists
Description
This function is an alias of:
array_key_exists
.