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<?php $A = array(); $B = &$A[0]; $F = &$A[1]; $C = $A; $D = $A; $C[0] = $D[1]; debug_zval_dump($A); debug_zval_dump($C); debug_zval_dump($D); $C[0] = 10; $D[1] = 20; echo $A[0] . ' ' . $A[1];
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
array(2) refcount(3){ [0]=> reference refcount(3) { NULL } [1]=> reference refcount(3) { NULL } } array(2) refcount(2){ [0]=> reference refcount(3) { NULL } [1]=> reference refcount(3) { NULL } } array(2) refcount(3){ [0]=> reference refcount(3) { NULL } [1]=> reference refcount(3) { NULL } } 10 20
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
array(2) refcount(3){ [0]=> &NULL [1]=> &NULL } array(2) refcount(2){ [0]=> &NULL [1]=> &NULL } array(2) refcount(3){ [0]=> &NULL [1]=> &NULL } 10 20
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 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, 5.6.7 - 5.6.28
array(2) refcount(3){ [0]=> &NULL refcount(3) [1]=> &NULL refcount(3) } array(2) refcount(2){ [0]=> &NULL refcount(3) [1]=> &NULL refcount(3) } array(2) refcount(3){ [0]=> &NULL refcount(3) [1]=> &NULL refcount(3) } 10 20
preferences:
257.98 ms | 404 KiB | 358 Q