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<?php $a = array('one', 'two', 'three'); foreach ($a as &$b) {} print_r($b); foreach ($a as $b) {} print_r($b);
Output for 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, 5.5.0 - 5.5.38, 5.6.1 - 5.6.5, 5.6.7 - 5.6.12, 5.6.14 - 5.6.24, 5.6.28, 5.6.30, 5.6.33 - 5.6.38, 5.6.40, 7.0.0, 7.0.2 - 7.0.3, 7.0.6 - 7.0.7, 7.0.9 - 7.0.15, 7.0.17, 7.0.21 - 7.0.25, 7.0.28, 7.0.32 - 7.0.33, 7.1.0, 7.1.2, 7.1.4 - 7.1.6, 7.1.10 - 7.1.16, 7.1.19 - 7.1.20, 7.1.25 - 7.1.33, 7.2.0, 7.2.9 - 7.2.26, 7.3.0 - 7.3.13, 7.4.0 - 7.4.1, 8.1.28, 8.2.17 - 8.2.18, 8.3.4 - 8.3.6
threetwo
Output for 5.6.0, 5.6.6, 5.6.13, 5.6.25 - 5.6.27, 5.6.29, 5.6.31 - 5.6.32, 5.6.39, 7.0.1, 7.0.4 - 7.0.5, 7.0.8, 7.0.16, 7.0.18 - 7.0.20, 7.0.26 - 7.0.27, 7.0.29 - 7.0.31, 7.1.1, 7.1.3, 7.1.7 - 7.1.9, 7.1.17 - 7.1.18, 7.1.21 - 7.1.24, 7.2.1 - 7.2.8

Process exited with code 137.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected '&', expecting T_VARIABLE or '$' in /in/UGsGD on line 7
Process exited with code 255.
Output for 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected '&', expecting T_VARIABLE or '$' in /in/UGsGD on line 7
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_VARIABLE' or `'$'' in /in/UGsGD on line 7
Process exited with code 255.
Output for 4.3.0
Parse error: parse error, unexpected '&', expecting T_VARIABLE or '$' in /in/Xmf6l on line 7
Process exited with code 255.

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210.41 ms | 401 KiB | 331 Q