PHP array_push() 函数

Array
(
    [a] =>php
    [b] => java
    [0] =>laravel
    [1] =>bluej
)

Array
(
    [0] =>tata
    [1] =>honda
    [2] =>nexon
    [3] => city
)

Array
(
    [0] => c
    [1] => java
    [2] =>os
    [3] => compiler
)

Array
(
    [a] => apple
    [b] => ball
    [0] => cat
    [1] => dog
)