<?php $array1 = array(1, 2, 3); $ref =& $array1[2]; // now $array[2] is a reference var_dump($array1); // [2] => &int(3) // this makes a copy of what's in $array1, not just the values within // $array2[2] will be a copy *of the reference* $array2 = $array1; var_dump($array2); // [2] => &int(3) // as such, changing the value of $array2[2] will also change $array1[2] $array2[2] = 10; var_dump($array1); // [2] => &int(10)
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