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<?php class EmptySetter { public function __set($name, $value) {} } class NonEmptySetter { public function __set($name, $value) { $this->{$name} = $value; } } function benchmark($class_name) { $start_time = microtime(TRUE); for ($i = 0; $i < 1; $i++) { $obj = new $class_name(); $obj->foo = 42; echo $obj->foo; } return microtime(TRUE) - $start_time; } printf("EmptySetter: %.2f seconds\n", benchmark('EmptySetter'));
Output for 5.2.6 - 5.2.17, 5.4.1 - 5.4.45, 5.5.0 - 5.5.33, 5.5.35 - 5.5.38, 5.6.1 - 5.6.10, 5.6.12 - 5.6.16, 5.6.18, 5.6.20 - 5.6.22, 5.6.24 - 5.6.30, 5.6.32 - 5.6.40, 7.0.0 - 7.0.2, 7.0.5 - 7.0.21, 7.0.23 - 7.0.33, 7.1.0 - 7.1.7, 7.1.9 - 7.1.13, 7.1.15 - 7.1.33, 7.2.0 - 7.2.9, 7.2.12 - 7.2.21, 7.2.23 - 7.2.25, 7.3.1 - 7.3.12, 7.4.0
Notice: Undefined property: EmptySetter::$foo in /in/gZmNR on line 17 EmptySetter: 0.00 seconds
Output for 5.6.31, 7.1.8, 7.3.0
Notice: Undefined property: EmptySetter::$foo in /in/gZmNR on line 17 EmptySetter: 0.03 seconds
Output for 5.6.0, 5.6.11, 5.6.19, 7.0.3 - 7.0.4, 7.2.10 - 7.2.11, 7.2.22
Notice: Undefined property: EmptySetter::$foo in /in/gZmNR on line 17 EmptySetter: 0.02 seconds
Output for 5.4.0, 5.5.34, 5.6.17, 7.0.22, 7.1.14
Notice: Undefined property: EmptySetter::$foo in /in/gZmNR on line 17 EmptySetter: 0.01 seconds
Output for 5.6.23
Notice: Undefined property: EmptySetter::$foo in /in/gZmNR on line 17 EmptySetter: 0.04 seconds
Output for 5.3.0 - 5.3.29
Notice: Undefined property: EmptySetter::$foo in /in/gZmNR on line 17 EmptySetter: -0.00 seconds
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.5
Notice: Undefined property: EmptySetter::$foo in /in/gZmNR on line 17 EmptySetter: 0.00 seconds
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/gZmNR on line 3
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/gZmNR on line 3
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/gZmNR on line 3
Process exited with code 255.

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