This function compares the values of two (or more) arrays, and return an array that contains the entries from array1 that are not present in array2 or array3, etc.

length: Optional. Numeric value. Specifies the length of the returned array. If this value is set to a negative number, the function will stop slicing that far from the last element. If this value is ...

sort(): It is an array function which is used to sorts the array and it will be arranged the elements in ascending order (lowest to highest). rsort(): It is an array function which is used to sorts ...

In this final article in the series on new features in PHP 7.x, we shall discuss improvements to arrays, operators, constants, and exception handling.

Through this tutorial I will help you to solve the problem if "array_column" function is not working. May be you are using the older version of PHP. Let me remind you, this will work with 5.5 version ...