移除数组中重复的值的函数是( )?
A. array array_unique ( array $array [, int $sort_flags = SORT_STRING ] )
B. array unique ( array $array [, int $sort_flags = SORT_STRING ] )
C. array str_unique ( array $array [, int $sort_flags = SORT_STRING ] )
D. array array_delete ( array $array [, int $sort_flags = SORT_STRING ] )
对数组进行逆向排序并保持索引关系的函数是( )?
A. bool sort ( array &$array [, int $sort_flags = SORT_REGULAR ] )
B. bool arsort ( array &$array [, int $sort_flags = SORT_REGULAR ] )
C. bool ksort ( array &$array [, int $sort_flags = SORT_REGULAR ] )
D. bool krsort ( array &$array [, int $sort_flags = SORT_REGULAR ] )
返回数组中当前的键/值对并将数组指针向前移动一步的函数是( )?
A. array current ( array &$array )
B. array prev ( array &$array )
C. array each ( array &$array )
D. array next ( array &$array )
对数组按照键名逆向排序的函数是( )?
A. bool arsort ( array &$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 $sort_flags = SORT_REGULAR ] )
将数组打乱的函数是( )?
A. bool shuffle ( array &$array )
B. array shuffle ( array &$array )
C. bool reverse ( array &$array )
D. arrayreverse ( array &$array )