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<?php class a { public $a = " test a! "; static public $b = " test b! "; public function __toString() { return '[class a]'; } } $a = new a(); $b = "a"; $line = 0; echo $line++, $$b; echo $line++, $$b->a; echo $line++, $$b->b; echo $line++, $$b::$b; // ERROR echo $line++, $$b::b; // ERROR
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
0[class a]1 test a! 2 Notice: Accessing static property a::$b as non static in /in/E8U9W on line 21 Warning: Undefined property: a::$b in /in/E8U9W on line 21 3 test b! 4 Fatal error: Uncaught Error: Undefined constant a::b in /in/E8U9W:23 Stack trace: #0 {main} thrown in /in/E8U9W on line 23
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
0[class a]1 test a! 2 Notice: Accessing static property a::$b as non static in /in/E8U9W on line 21 Notice: Undefined property: a::$b in /in/E8U9W on line 21 3 test b! 4 Fatal error: Uncaught Error: Undefined class constant 'b' in /in/E8U9W:23 Stack trace: #0 {main} thrown in /in/E8U9W on line 23
Process exited with code 255.
Output for 7.3.32 - 7.3.33, 7.4.26
0[class a]1 test a! 23 test b! 4 Fatal error: Uncaught Error: Undefined class constant 'b' in /in/E8U9W:23 Stack trace: #0 {main} thrown in /in/E8U9W on line 23
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28
Parse error: syntax error, unexpected '::' (T_PAAMAYIM_NEKUDOTAYIM), expecting ',' or ';' in /in/E8U9W on line 22
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_PAAMAYIM_NEKUDOTAYIM, expecting ',' or ';' in /in/E8U9W on line 22
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_PAAMAYIM_NEKUDOTAYIM, expecting ',' or ';' in /in/E8U9W on line 22
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/E8U9W on line 6
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/E8U9W on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/E8U9W on line 6
Process exited with code 255.

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