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run code in 200+ php & hhvm versions
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<?php function wer($x) { print_r($x); $x[] = 'ttt''; } $e = 'ert'; call_user_func('wer', [&$e]); print_r($x);
Output for 5.6.30, 7.0.0 - 7.3.0beta2
Parse error: syntax error, unexpected '';' (T_CONSTANT_ENCAPSED_STRING) in /in/QciFu on line 6
Process exited with code 255.
Output for hhvm-3.22.0
Fatal error: Uncaught Error: syntax error, unexpected T_CONSTANT_ENCAPSED_STRING in /in/QciFu:-1 Stack trace: #0 {main}
Process exited with code 255.
Output for hhvm-3.15.4 - 3.21.3
Fatal error: Uncaught Error: syntax error, unexpected T_CONSTANT_ENCAPSED_STRING in /in/QciFu:4 Stack trace: #0 {main}
Process exited with code 255.