A. array current ( array &$array ) B. array prev ( array &$array ) C. array each ( array &$array ) D. array next ( array &$array )
A. bool arsort ( array &$array [, int $sort_flags = SORT_REGULAR ] ) B. bool sort ( array &$array [, int $sort_flags = SORT_REGULAR ] ) C. bool rsort ( array &$array [, int $sort_flags = SORT_REGULAR ] ) D. bool krsort ( array &$array [, int $sort_flags = SORT_REGULAR ] )
A. bool shuffle ( array &$array ) B. array shuffle ( array &$array ) C. bool reverse ( array &$array ) D. arrayreverse ( array &$array )
A. array_join(); B. implode(); C. compact(); D. impact();
A. array array_join( array $array1 [, array $... ] ) B. array str_merge ( array $array1 [, array $... ] ) C. array array_merge ( array $array1 [, array $... ] ) D. array merge ( array $array1 [, array $... ] )
A. mixed round ( array $input [, int $num_req = 1 ] ) B. mixed array_round ( array $input [, int $num_req = 1 ] ) C. mixed rand ( array $input [, int $num_req = 1 ] ) D. mixed array_rand ( array $input [, int $num_req = 1 ] )
A. max() B. min() C. array_count() D. count()
A. key()函数用来读取当前指针所指向元素的键和值 B. key()函数用来读取当前指针所指向元素的值 C. current()函数用来读取当前指针所指向元素的键值 D. current()函数用来读取当前指针所指向元素的值
A. a1,a3,a5,a10,a20 B. a1,a20,a3,a5,a10 C. a10,a1,a20,a3,a5 D. a1,a10,a5,a20,a3
A. ksort( ) B. asort( ) C. krsort( ) D. usort( )