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<?php class A { static $foo = array( 'bar' => 'baz' ); } $var = 'bar'; var_dump( A::$foo[$var] ); var_dump( !A::$foo[$var] );
based on QXnQs
Output for 5.0.0 - 7.1.0
string(3) "baz" bool(false)
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STATIC, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/rvFPU on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STATIC, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/rvFPU on line 4
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/rvFPU on line 4
Process exited with code 255.