How to determine whether the php array is an indexed array _ PHP Tutorial-php Tutorial

Determine whether the php array is an indexed array. HP does not have a built-in method to determine whether to index an array. it implements a simple method: Copy the code as follows: echois_assoc ($ array )? Index array: it is not an index array. the is_assoc function HP does not have a built-in method to determine whether to index the array. it implements a simple method. usage:

The code is as follows:

Echo is_assoc ($ array )? 'Index array': 'not an index array ';

The is_assoc function is as follows:

The code is as follows:

Function is_assoc ($ array ){
If (is_array ($ array )){
$ Keys = array_keys ($ array );
Return $ keys! = Array_keys ($ keys );
}
Return false;
}

The authorization code is as follows: echo is_assoc ($ array )? 'Index array': 'not an index array'; is_assoc function...