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<?php function &pre_inc(&$a) { return ++$a; } $a = 5; $b = &$a; //echo $a; //echo $b; $c = &pre_inc($a); echo $c; echo $d; $d = $b++; echo $c; echo $d; echo $c.$d;
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Notice: Only variable references should be returned by reference in /in/JrjhN on line 4 6 Warning: Undefined variable $d in /in/JrjhN on line 13 6666
Output for 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
Notice: Only variable references should be returned by reference in /in/JrjhN on line 4 6 Notice: Undefined variable: d in /in/JrjhN on line 13 6666
Output for 7.3.32 - 7.3.33, 7.4.26
66666
Output for 5.0.4 - 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
6 Notice: Undefined variable: d in /in/JrjhN on line 13 7676
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.3
6 Notice: Undefined variable: d in /in/JrjhN on line 13 7676
preferences:
200.84 ms | 402 KiB | 313 Q