3v4l.org

run code in 300+ PHP versions simultaneously
<?php class TestKey { private $data = array(); public function __set($name, $value) { $this->data[$name] = $value; } public function __get($name) { return @$this->data[$name]; } /** As of PHP 5.1.0 */ public function __isset($name) { if (array_key_exists($name, $this->data)) { return true; } return false; } /** As of PHP 5.1.0 */ public function __unset($name) { unset($this->data[$name]); } } class TestValue { private $data = array(); public function __set($name, $value) { $this->data[$name] = $value; } public function __get($name) { return @$this->data[$name]; } /** As of PHP 5.1.0 */ public function __isset($name) { return isset($this->data[$name]); } /** As of PHP 5.1.0 */ public function __unset($name) { $this->data[$name] = null; } } $k = new TestKey(); $v = new TestValue(); $k->foo = $v->foo = "bar"; var_dump(isset($k->foo) === isset($v->foo)); $k->foo = $v->foo = null; var_dump(isset($k->foo) === isset($v->foo)); unset($k->foo, $v->foo); var_dump(isset($k->foo) === isset($v->foo));

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.60.0080.00818.53
8.3.50.0080.00722.18
8.3.40.0080.00618.93
8.3.30.0040.01118.98
8.3.20.0000.00720.31
8.3.10.0040.00423.70
8.3.00.0050.00320.84
8.2.180.0170.00016.50
8.2.170.0070.00722.96
8.2.160.0100.00320.52
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0140.00426.16
8.2.120.0080.00020.84
8.2.110.0060.00322.11
8.2.100.0040.00719.63
8.2.90.0050.00319.08
8.2.80.0030.00617.97
8.2.70.0030.00617.63
8.2.60.0040.00417.93
8.2.50.0030.00618.07
8.2.40.0040.00419.71
8.2.30.0110.00018.26
8.2.20.0050.00317.71
8.2.10.0040.00418.08
8.2.00.0000.00717.75
8.1.280.0150.00025.92
8.1.270.0060.00321.95
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0030.00622.13
8.1.230.0060.00619.00
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0030.00617.35
8.1.190.0040.00417.22
8.1.180.0040.00418.10
8.1.170.0000.00918.59
8.1.160.0000.00821.91
8.1.150.0050.00218.60
8.1.140.0000.00917.36
8.1.130.0000.00717.75
8.1.120.0040.00417.34
8.1.110.0000.00717.46
8.1.100.0070.00017.46
8.1.90.0040.00417.25
8.1.80.0040.00417.41
8.1.70.0030.00317.31
8.1.60.0050.00517.52
8.1.50.0040.00417.56
8.1.40.0000.00817.54
8.1.30.0050.00317.66
8.1.20.0000.00717.68
8.1.10.0040.00417.46
8.1.00.0050.00317.43
8.0.300.0040.00418.77
8.0.290.0000.00717.05
8.0.280.0000.00718.40
8.0.270.0070.00017.28
8.0.260.0000.00617.29
8.0.250.0000.00716.99
8.0.240.0040.00416.93
8.0.230.0000.00716.93
8.0.220.0000.00716.79
8.0.210.0000.00716.92
8.0.200.0070.00016.97
8.0.190.0040.00416.96
8.0.180.0030.00616.88
8.0.170.0000.00716.94
8.0.160.0070.00016.82
8.0.150.0040.00416.79
8.0.140.0070.00016.90
8.0.130.0000.00513.43
8.0.120.0030.00616.78
8.0.110.0040.00416.85
8.0.100.0000.00716.88
8.0.90.0040.00416.86
8.0.80.0090.00616.92
8.0.70.0050.00216.76
8.0.60.0040.00416.79
8.0.50.0070.00016.71
8.0.30.0080.01117.23
8.0.20.0070.01017.40
8.0.10.0040.00416.79
8.0.00.0130.00916.94
7.4.330.0000.00515.02
7.4.320.0030.00316.54
7.4.300.0000.00716.38
7.4.290.0070.00016.64
7.4.280.0060.00316.66
7.4.270.0030.00316.64
7.4.260.0000.00816.48
7.4.250.0000.00716.53
7.4.240.0050.00316.56
7.4.230.0030.00316.27
7.4.220.0090.00916.62
7.4.210.0060.00916.61
7.4.200.0050.00216.69
7.4.160.0170.00016.52
7.4.150.0120.00617.40
7.4.140.0080.01217.86
7.4.130.0080.01116.53
7.4.120.0110.00816.57
7.4.110.0130.00816.55
7.4.100.0150.00316.56
7.4.90.0090.00916.50
7.4.80.0110.01119.39
7.4.70.0060.00916.61
7.4.60.0070.01116.70
7.4.50.0050.00016.64
7.4.40.0000.02416.57
7.4.30.0090.00916.41
7.4.10.0140.00314.77
7.4.00.0080.00914.91
7.3.330.0040.00513.38
7.3.320.0000.00513.34
7.3.310.0030.00516.37
7.3.300.0000.00716.23
7.3.290.0100.00716.39
7.3.280.0080.01016.39
7.3.270.0090.00917.40
7.3.260.0130.00316.54
7.3.250.0150.00716.47
7.3.240.0090.00916.40
7.3.230.0100.00716.47
7.3.210.0120.00616.50
7.3.200.0080.00819.39
7.3.190.0100.01016.36
7.3.180.0090.00616.33
7.3.170.0120.00316.46
7.3.160.0100.01016.49
7.3.130.0000.01914.92
7.3.120.0090.00714.91
7.3.110.0070.01014.89
7.3.100.0030.01114.85
7.3.90.0080.00814.87
7.3.80.0000.01014.94
7.3.70.0030.00814.85
7.3.60.0050.00714.58
7.3.50.0060.00514.87
7.3.40.0000.01614.89
7.3.30.0090.00814.90
7.3.20.0050.00916.77
7.3.10.0120.00016.63
7.3.00.0070.00716.68
7.2.330.0120.00616.60
7.2.320.0030.01316.77
7.2.310.0050.01416.77
7.2.300.0100.00616.73
7.2.290.0120.00816.57
7.2.260.0070.01115.29
7.2.250.0090.01014.97
7.2.240.0110.00815.11
7.2.230.0070.00715.02
7.2.220.0050.00815.16
7.2.210.0100.00615.04
7.2.200.0060.01015.15
7.2.190.0050.01015.16
7.2.180.0090.00615.00
7.2.170.0050.01315.01
7.2.160.0120.00315.18
7.2.150.0060.00617.03
7.2.140.0070.00717.03
7.2.130.0040.01416.95
7.2.120.0030.01616.74
7.2.110.0080.01216.61
7.2.100.0070.00716.76
7.2.90.0040.00717.03
7.2.80.0040.01116.87
7.2.70.0070.01016.73
7.2.60.0060.00817.11
7.2.50.0090.00616.84
7.2.40.0070.00716.89
7.2.30.0000.01417.10
7.2.20.0040.00717.13
7.2.10.0080.00616.96
7.2.00.0060.00617.06
7.1.330.0060.00715.99
7.1.320.0050.00915.87
7.1.310.0120.00515.94
7.1.300.0070.00815.73
7.1.290.0060.00915.75
7.1.280.0070.00315.66
7.1.270.0070.00715.71
7.1.260.0040.00515.71
7.1.250.0070.01015.83
7.1.240.0050.00815.84
7.1.230.0000.01515.86
7.1.220.0030.01215.75
7.1.210.0060.00615.63
7.1.200.0060.00415.88
7.1.190.0000.01115.70
7.1.180.0100.00315.57
7.1.170.0070.00715.73
7.1.160.0030.00916.01
7.1.150.0060.00315.88
7.1.140.0100.00315.96
7.1.130.0030.00715.89
7.1.120.0040.01115.86
7.1.110.0030.00615.86
7.1.100.0060.00915.82
7.1.90.0060.00315.71
7.1.80.0000.01115.98
7.1.70.0100.00116.62
7.1.60.0070.01217.74
7.1.50.0110.00616.34
7.1.40.0030.00615.93
7.1.30.0070.00715.87
7.1.20.0040.00415.84
7.1.10.0030.00715.98
7.1.00.0060.03819.01
7.0.330.0000.01315.50
7.0.320.0080.00815.35
7.0.310.0000.01715.57
7.0.300.0030.00715.63
7.0.290.0070.00315.09
7.0.280.0030.00815.36
7.0.270.0050.00315.49
7.0.260.0100.00315.11
7.0.250.0070.00715.28
7.0.240.0130.00015.61
7.0.230.0040.00715.51
7.0.220.0110.00015.40
7.0.210.0060.00615.30
7.0.200.0050.00715.97
7.0.190.0040.00715.42
7.0.180.0030.00915.42
7.0.170.0040.00415.56
7.0.160.0050.00815.46
7.0.150.0120.00015.46
7.0.140.0070.04018.83
7.0.130.0070.00715.27
7.0.120.0040.00415.50
7.0.110.0100.00715.31
7.0.100.0100.00315.48
7.0.90.0100.00715.50
7.0.80.0040.00715.51
7.0.70.0080.00315.39
7.0.60.0100.02717.67
7.0.50.0050.04016.74
7.0.40.0080.02816.73
7.0.30.0310.03816.73
7.0.20.0070.02816.68
7.0.10.0170.05016.91
7.0.00.0050.02816.80
5.6.400.0040.01114.77
5.6.390.0040.01114.65
5.6.380.0030.01414.41
5.6.370.0000.01114.58
5.6.360.0000.00814.71
5.6.350.0000.01214.43
5.6.340.0040.01114.54
5.6.330.0040.00814.42
5.6.320.0060.00914.43
5.6.310.0030.00714.52
5.6.300.0070.01014.72
5.6.290.0000.01514.72
5.6.280.0050.03817.86
5.6.270.0100.00714.79
5.6.260.0030.01214.43
5.6.250.0090.00914.31
5.6.240.0040.00714.56
5.6.230.0060.00914.48
5.6.220.0100.00314.31
5.6.210.0070.04217.69
5.6.200.0050.04416.40
5.6.190.0030.05217.52
5.6.180.0190.04417.50
5.6.170.0240.03417.36
5.6.160.0110.04117.46
5.6.150.0030.02516.38
5.6.140.0070.03716.30
5.6.130.0030.02516.35
5.6.120.0060.04117.76
5.6.110.0090.04317.73
5.6.100.0030.04217.67
5.6.90.0050.02317.82
5.6.80.0090.04017.50
5.6.70.0150.04117.32
5.6.60.0040.00414.34
5.6.50.0040.01414.31
5.6.40.0000.00914.35
5.6.30.0060.00314.62
5.6.20.0100.00314.71
5.6.10.0090.00614.29
5.6.00.0060.00314.39
5.5.380.0000.01014.48
5.5.370.0000.01114.80
5.5.360.0000.01714.34
5.5.350.0120.04117.41
5.5.340.0040.04716.25
5.5.330.0050.02717.48
5.5.320.0080.02817.40
5.5.310.0230.02217.46
5.5.300.0070.02916.00
5.5.290.0090.03716.07
5.5.280.0100.03617.44
5.5.270.0030.03217.71
5.5.260.0100.04317.65
5.5.250.0130.03717.39
5.5.240.0030.04717.24
5.5.230.0030.01014.53
5.5.220.0030.01314.42
5.5.210.0030.01314.00
5.5.200.0000.01214.60
5.5.190.0030.01114.30
5.5.180.0060.00314.61
5.5.170.0080.00314.50
5.5.160.0070.00314.42
5.5.150.0140.00314.21
5.5.140.0070.00714.65
5.5.130.0130.00314.68
5.5.120.0110.00414.48
5.5.110.0100.00314.34
5.5.100.0070.00714.26
5.5.90.0060.00614.66
5.5.80.0060.00314.28
5.5.70.0040.00814.37
5.5.60.0030.01014.33
5.5.50.0090.00614.09
5.5.40.0080.00814.09
5.5.30.0110.00414.20
5.5.20.0030.00714.21
5.5.10.0060.00313.99
5.5.00.0030.01014.11
5.4.450.0030.04315.92
5.4.440.0050.02515.98
5.4.430.0030.04015.90
5.4.420.0020.03316.05
5.4.410.0080.02315.91
5.4.400.0070.02815.76
5.4.390.0060.02315.88
5.4.380.0050.02415.95
5.4.370.0030.03015.78
5.4.360.0030.03615.95
5.4.350.0080.03815.94
5.4.340.0090.02915.89
5.4.330.0000.01212.64
5.4.320.0050.02515.75
5.4.310.0040.02015.81
5.4.300.0050.02015.90
5.4.290.0030.02115.79
5.4.280.0020.02315.75
5.4.270.0080.02015.86
5.4.260.0040.02015.92
5.4.250.0060.02015.78
5.4.240.0050.01815.94
5.4.230.0030.02015.81
5.4.220.0080.02115.80
5.4.210.0050.02615.89
5.4.200.0070.01815.89
5.4.190.0020.02415.92
5.4.180.0050.02115.91
5.4.170.0070.02815.82
5.4.160.0070.01715.74
5.4.150.0050.01815.80
5.4.140.0060.02514.52
5.4.130.0060.02314.49
5.4.120.0060.01814.49
5.4.110.0020.02214.54
5.4.100.0020.02214.68
5.4.90.0020.02214.50
5.4.80.0020.02214.57
5.4.70.0040.02014.61
5.4.60.0040.01814.57
5.4.50.0020.02014.44
5.4.40.0060.02014.46
5.4.30.0050.02414.50
5.4.20.0020.02214.50
5.4.10.0000.02614.52
5.4.00.0020.03714.32
5.3.290.0030.02213.63
5.3.280.0070.02013.63
5.3.270.0020.02513.64
5.3.260.0040.02013.58
5.3.250.0070.01813.64
5.3.240.0050.02013.64
5.3.230.0050.02213.57
5.3.220.0020.02213.61
5.3.210.0050.02013.64
5.3.200.0000.02513.65
5.3.190.0030.02213.70
5.3.180.0000.02513.69
5.3.170.0030.02313.62
5.3.160.0050.01813.63
5.3.150.0030.02013.64
5.3.140.0120.02313.62
5.3.130.0150.01213.68
5.3.120.0060.02113.63
5.3.110.0050.02513.62
5.3.100.0050.03813.42
5.3.90.0050.02213.34
5.3.80.0050.01813.41
5.3.70.0030.03313.36
5.3.60.0080.02613.33
5.3.50.0020.03613.31
5.3.40.0080.03713.33
5.3.30.0090.02813.31
5.3.20.0070.01813.20
5.3.10.0000.02313.19
5.3.00.0090.03213.10
5.2.170.0030.05011.16
5.2.160.0030.05711.17
5.2.150.0100.05711.21
5.2.140.0070.05311.13
5.2.130.0000.03311.18
5.2.120.0030.03311.18
5.2.110.0000.05711.04
5.2.100.0030.06311.13
5.2.90.0030.04011.20
5.2.80.0000.03711.17
5.2.70.0100.03311.00
5.2.60.0030.05711.14
5.2.50.0130.05311.08
5.2.40.0030.06011.07
5.2.30.0170.05711.00
5.2.20.0000.05011.03
5.2.10.0100.05311.03
5.2.00.0030.06710.89
5.1.60.0000.04310.06
5.1.50.0070.03710.17
5.1.40.0000.02710.04
5.1.30.0070.05310.41
5.1.20.0100.02710.37
5.1.10.0100.02010.15
5.1.00.0030.05010.15
5.0.50.0000.0238.61
5.0.40.0070.0238.43
5.0.30.0070.0578.40
5.0.20.0000.0508.38
5.0.10.0130.0408.33
5.0.00.0000.0678.33
4.4.90.0030.0378.33
4.4.80.0000.0378.33
4.4.70.0000.0208.33
4.4.60.0000.0238.33
4.4.50.0000.0338.33
4.4.40.0070.0538.33
4.4.30.0000.0208.33
4.4.20.0070.0208.33
4.4.10.0000.0178.33
4.4.00.0000.0438.33
4.3.110.0030.0178.33
4.3.100.0030.0378.33
4.3.90.0070.0308.33
4.3.80.0000.0338.33
4.3.70.0030.0138.33
4.3.60.0000.0208.33
4.3.50.0030.0338.33
4.3.40.0000.0538.33
4.3.30.0100.0308.33
4.3.20.0030.0378.33
4.3.10.0030.0378.33
4.3.00.0000.0378.33

preferences:
40.64 ms | 401 KiB | 5 Q