Sunday, 20 September 2015

Some Array Functions:-

  1. array_diff() :- 
    •  The array_diff() function compares the values of two(or more) arrays, and returns the differences.
    • This function compares the values of two(or more) arrays, and return an array that contains the entire from array1 that are not present in array2 or array3 etc.
    • It can be explained further with a suitable example:-
                    array_diff().php:-
                   

                     Screenshot:-
                      

    2. array_intersect() :-
    • The array_intersect() function compares the values of two(or more) arrays, and returns the matches.
    • This function compares the values of two or more arrays, and return an array that contains the entries from array1 that are present in array2, array3 etc.
    • Now, explain it with a suitable example:-
                    array_intersect().php:-
                   

                    Screenshot:-
                     

     3.  array_push() ;-
    • The array_push() function inserts one or more elements to the end of an array.
    • Lets see an example:-
                    array_push().php :-
                    

                    Screenshot:-
                     

     4. array_pop() :-
    • The array_pop() function deletes the last element of an array.
    • Let consider an example:-
                    array_pop().php:-
                    

                     Screenshot:-
                      


     5. array_unique() ;-
    • The array_unique() function removes duplicate values from an array.
    • If two or more array values are the same, the first appearance will be kept and the other will be removed.
    • The returned array will keep the first array item's key type.
    • Consider an example:-
                     array_unique().php:-
                     

                     Screenshot:-
                     

     6. array_count():-
    • The array_count() function returns the number of elements in an array.
    • Consider an example:-
                    array_count().php:-
                     

                      Screenshot:-
                      

      7. array_merge() ;-
    • The array_merge() function merges one or more arrays into one array.
    • We can assign one array to the function, or as many as we like.
    • If two or more array elements have the same key, the last one overrides the others.
    • Let us consider an example:-
                    array_merge().php:-
                    

                     Screenshot:-