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<?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)
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.1 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
array(3) { [0]=> int(1) [1]=> int(2) [2]=> &int(3) } array(3) { [0]=> int(1) [1]=> int(2) [2]=> &int(3) } array(3) { [0]=> int(1) [1]=> int(2) [2]=> &int(10) }
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/5TqMB on line 16
Process exited with code 255.
preferences:
177.71 ms | 479 KiB | 5 Q