(PHP 4, PHP 5, PHP 7) Prepend one or more elements to the beginning of an array

(PHP 4, PHP 5, PHP 7) Return an array with elements in reverse order

(PHP 5 >= 5.5.0, PHP 7) Return the values from a single column in the input array

(PHP 4 >= 4.0.5, PHP 5, PHP 7) Searches the array for a given value and returns the corresponding key if

(PHP 4 >= 4.2.0, PHP 5, PHP 7) Split an array into chunks

(PHP 4, PHP 5, PHP 7) Return all the keys or a subset of the keys of an array

(PHP 4, PHP 5, PHP 7) Return the current element in an array

(PHP 4, PHP 5, PHP 7) Shift an element off the beginning of array

(PHP 4 >= 4.3.0, PHP 5, PHP 7) Computes the difference of arrays with additional index check

(PHP 4 >= 4.3.0, PHP 5, PHP 7) Computes the intersection of arrays with additional index check