PHP how to truncate an array

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

Answer 2

Yes, unless you want to loop over the array and unset() the unwanted elements.