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<?php for( $i = 3; $i > 0; call_user_func( function($i){ $ob=''; for( $j = 0; $j<$i; $ob.='Smile!', $j++ ); echo $ob."\n"; }, $i ), $i-- );
Output for 5.3.0 - 7.2.6
Smile!Smile!Smile! Smile!Smile! Smile!
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/MTVXa on line 7
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION, expecting ')' in /in/MTVXa on line 7
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/MTVXa on line 7
Process exited with code 255.