Question

How do you truncate a PHP array in a most effective way?

Should I use array_splice?

Answer 1

You can use the native functions to remove array elements:

• array_pop – Pop the element off the end of array
• array_shift – Shift an element off the beginning of array
• array_slice – Extract a slice of the array
• unset – Remove one element from array

With this knowledge make your own function

function array_truncate(array $array, $left, $right) {
    $array = array_slice($array, $left, count($array) - $left);
    $array = array_slice($array, 0, count($array) - $right);
    return $array;
}

Demo – http://codepad.viper-7.com/JVAs0a