Difference between array_push() and $array[] =

Question

In the PHP manual, (array_push) says..

If you use array_push() to add one element to the array it\'s better to use $array[]

Answer 1

The difference is in the line below to "because in that way there is no overhead of calling a function."

array_push() will raise a warning if the first argument is not an array. This differs from the $var[] behaviour where a new array is created.