3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public $a; function __construct() { $this->a = $this; } } $foo = new Foo(); var_dump($foo, $foo->a, $foo->a->a, $foo->a->a->a->a);

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)
8.3.60.0190.00318.68
8.3.50.0120.00721.99
8.3.40.0120.00318.79
8.3.30.0110.00319.07
8.3.20.0040.00420.34
8.3.10.0040.00422.09
8.3.00.0000.00722.33
8.2.180.0120.00616.63
8.2.170.0170.00022.96
8.2.160.0030.01020.85
8.2.150.0000.00824.18
8.2.140.0050.00324.66
8.2.130.0070.00026.16
8.2.120.0060.00317.38
8.2.110.0070.00322.11
8.2.100.0110.00019.45
8.2.90.0060.00319.27
8.2.80.0000.01117.97
8.2.70.0050.00317.50
8.2.60.0030.00617.93
8.2.50.0050.00318.07
8.2.40.0030.00518.22
8.2.30.0090.00018.07
8.2.20.0070.00017.54
8.2.10.0040.00417.73
8.2.00.0030.00717.51
8.1.280.0140.00725.92
8.1.270.0030.00522.17
8.1.260.0080.00026.35
8.1.250.0130.00328.09
8.1.240.0040.00423.81
8.1.230.0080.00418.83
8.1.220.0030.00617.74
8.1.210.0060.00318.77
8.1.200.0000.01017.25
8.1.190.0050.00217.39
8.1.180.0040.00418.10
8.1.170.0000.00818.50
8.1.160.0030.00321.96
8.1.150.0000.00818.58
8.1.140.0040.00417.24
8.1.130.0050.00317.74
8.1.120.0040.00417.34
8.1.110.0030.00617.39
8.1.100.0030.00317.37
8.1.90.0080.00017.25
8.1.80.0030.00417.40
8.1.70.0030.00317.39
8.1.60.0030.00617.61
8.1.50.0000.00817.49
8.1.40.0030.00617.42
8.1.30.0030.00617.66
8.1.20.0000.00917.59
8.1.10.0040.00417.51
8.1.00.0000.00817.53
8.0.300.0070.00018.77
8.0.290.0070.00017.16
8.0.280.0030.00318.27
8.0.270.0030.00317.13
8.0.260.0030.00316.75
8.0.250.0060.00316.89
8.0.240.0000.00716.80
8.0.230.0000.00716.87
8.0.220.0040.00416.84
8.0.210.0000.00716.86
8.0.200.0070.00016.93
8.0.190.0050.00216.75
8.0.180.0040.00416.83
8.0.170.0040.00416.91
8.0.160.0000.00716.82
8.0.150.0050.00216.66
8.0.140.0080.00016.84
8.0.130.0030.00313.27
8.0.120.0000.00716.81
8.0.110.0040.00416.81
8.0.100.0020.00516.85
8.0.90.0040.00416.64
8.0.80.0090.00616.86
8.0.70.0080.00016.78
8.0.60.0000.00716.77
8.0.50.0040.00416.79
8.0.30.0150.00717.17
8.0.20.0090.01117.40
8.0.10.0000.00717.07
8.0.00.0140.00816.94
7.4.330.0060.00015.00
7.4.320.0030.00316.52
7.4.300.0000.00716.51
7.4.290.0000.00816.65
7.4.280.0040.00416.64
7.4.270.0030.00316.50
7.4.260.0000.00716.59
7.4.250.0020.00516.56
7.4.240.0030.00516.55
7.4.230.0030.00316.70
7.4.220.0120.00616.55
7.4.210.0080.00816.48
7.4.200.0000.00716.56
7.4.190.0040.00416.41
7.4.160.0060.00916.66
7.4.150.0140.00517.40
7.4.140.0100.01017.86
7.4.130.0140.00516.53
7.4.120.0090.00816.59
7.4.110.0130.00316.66
7.4.100.0050.01716.37
7.4.90.0120.00816.54
7.4.80.0130.00319.39
7.4.70.0100.01016.52
7.4.60.0090.00616.48
7.4.50.0000.00916.56
7.4.40.0060.00922.77
7.4.30.0130.00316.70
7.4.10.0070.01316.34
7.4.00.0050.01315.46
7.3.330.0000.00513.17
7.3.320.0020.00213.12
7.3.310.0070.00016.20
7.3.300.0030.00316.21
7.3.290.0100.00516.29
7.3.280.0080.00916.27
7.3.270.0060.01117.40
7.3.260.0140.01116.29
7.3.250.0110.00716.31
7.3.240.0160.00316.50
7.3.230.0130.00316.55
7.3.210.0100.00716.30
7.3.200.0080.00819.39
7.3.190.0060.01216.56
7.3.180.0030.01316.29
7.3.170.0140.00316.34
7.3.160.0130.00316.35
7.3.130.0090.00916.29
7.3.120.0090.00715.30
7.3.110.0140.00315.73
7.3.100.0030.01015.61
7.3.90.0020.01115.66
7.3.80.0030.00915.47
7.3.70.0070.00615.50
7.3.60.0030.01215.60
7.3.50.0080.00715.61
7.3.40.0050.01315.52
7.3.30.0060.00815.52
7.3.20.0070.00717.30
7.3.10.0060.00717.06
7.3.00.0060.00916.99
7.2.330.0000.01816.28
7.2.320.0110.01016.68
7.2.310.0090.01516.28
7.2.300.0160.03616.57
7.2.290.0060.01416.73
7.2.260.0100.01016.80
7.2.250.0100.00515.90
7.2.240.0040.01115.67
7.2.230.0060.00815.81
7.2.220.0090.00715.87
7.2.210.0030.01015.73
7.2.200.0020.01315.85
7.2.190.0020.01315.58
7.2.180.0030.01115.70
7.2.170.0090.00615.66
7.2.160.0090.00615.70
7.2.150.0070.00817.55
7.2.140.0110.00317.53
7.2.130.0110.00217.36
7.2.120.0030.01117.32
7.2.110.0020.00917.37
7.2.100.0060.00517.30
7.2.90.0070.00617.45
7.2.80.0090.00417.42
7.2.70.0070.00917.27
7.2.60.0020.01317.24
7.2.50.0050.00817.48
7.2.40.0060.00917.11
7.2.30.0050.00817.31
7.2.20.0060.00817.53
7.2.10.0040.01217.23
7.2.00.0090.00617.28
7.1.330.0050.00816.54
7.1.320.0060.00616.54
7.1.310.0050.00616.63
7.1.300.0060.00716.53
7.1.290.0080.00816.49
7.1.280.0020.01016.62
7.1.270.0030.01116.52
7.1.260.0040.00816.61
7.1.250.0060.00716.34
7.1.240.0050.00816.43
7.1.230.0030.01016.60
7.1.220.0050.00816.65
7.1.210.0120.00116.55
7.1.200.0030.00916.64
7.1.190.0040.01216.50
7.1.180.0070.00716.66
7.1.170.0050.00916.63
7.1.160.0110.00516.68
7.1.150.0030.01016.53
7.1.140.0060.00816.61
7.1.130.0030.01016.58
7.1.120.0030.00816.61
7.1.110.0060.00916.47
7.1.100.0050.00516.58
7.1.90.0060.00816.73
7.1.80.0040.01016.54
7.1.70.0070.00416.69
7.1.60.0080.00316.77
7.1.50.0040.01116.49
7.1.40.0090.00516.55
7.1.30.0040.00916.42
7.1.20.0120.00216.46
7.1.10.0070.00716.49
7.1.00.0050.02918.51
7.0.330.0040.01116.13
7.0.320.0030.01216.27
7.0.310.0040.00716.21
7.0.300.0050.01016.19
7.0.290.0070.00716.17
7.0.280.0060.00716.24
7.0.270.0060.00816.18
7.0.260.0020.00816.34
7.0.250.0030.00816.15
7.0.240.0060.00616.32
7.0.230.0030.00916.17
7.0.220.0050.00716.18
7.0.210.0030.01016.17
7.0.200.0050.00616.27
7.0.190.0000.01216.25
7.0.180.0050.00716.20
7.0.170.0070.00716.35
7.0.160.0050.01116.16
7.0.150.0080.00716.19
7.0.140.0080.02518.16
7.0.130.0080.00316.10
7.0.120.0060.00716.22
7.0.110.0040.01216.20
7.0.100.0030.01016.23
7.0.90.0040.00716.18
7.0.80.0060.00916.23
7.0.70.0050.00916.15
7.0.60.0050.03517.45
7.0.50.0060.03116.77
7.0.40.0100.01816.20
7.0.30.0160.03216.21
7.0.20.0120.02916.16
7.0.10.0040.02116.24
7.0.00.0030.03716.14
5.6.400.0020.01215.23
5.6.390.0050.00715.12
5.6.380.0080.00814.97
5.6.370.0090.00515.26
5.6.360.0050.00815.02
5.6.350.0070.00815.11
5.6.340.0090.00515.07
5.6.330.0120.00515.28
5.6.320.0050.01015.14
5.6.310.0030.00915.14
5.6.300.0090.00614.94
5.6.290.0080.00315.10
5.6.280.0070.02916.99
5.6.270.0030.01315.19
5.6.260.0110.00315.08
5.6.250.0020.00715.16
5.6.240.0050.01015.11
5.6.230.0050.01115.12
5.6.220.0060.00815.05
5.6.210.0120.03016.93
5.6.200.0070.03616.05
5.6.190.0100.03016.95
5.6.180.1170.01717.08
5.6.170.0150.02616.88
5.6.160.0100.02916.89
5.6.150.0060.02216.05
5.6.140.0060.01916.10
5.6.130.0080.02416.15
5.6.120.0040.03717.06
5.6.110.0090.03017.19
5.6.100.0070.02817.06
5.6.90.0110.02817.02
5.6.80.0060.02816.79
5.6.70.0960.01816.86
5.6.60.0110.00515.09
5.6.50.0040.01015.21
5.6.40.0070.00414.97
5.6.30.0080.00515.20
5.6.20.0100.00515.06
5.6.10.0060.00414.95
5.6.00.0130.00215.07
5.5.380.0020.01214.89
5.5.370.0060.00914.81
5.5.360.0060.00815.16
5.5.350.0120.03216.90
5.5.340.0080.03315.91
5.5.330.0050.02016.81
5.5.320.0150.02916.67
5.5.310.0130.03216.75
5.5.300.0090.02815.96
5.5.290.0070.02915.96
5.5.280.0050.02416.82
5.5.270.0070.03316.99
5.5.260.0080.01916.96
5.5.250.0060.02516.91
5.5.240.0100.01416.56
5.5.230.0030.01414.88
5.5.220.0070.00715.04
5.5.210.0030.01214.83
5.5.200.0000.01314.96
5.5.190.0080.00215.06
5.5.180.0040.00814.86
5.5.170.0060.00614.98
5.5.160.0060.00714.92
5.5.150.0100.00214.74
5.5.140.0000.01415.00
5.5.130.0020.01415.08
5.5.120.0040.00714.96
5.5.110.0030.00814.96
5.5.100.0040.00714.76
5.5.90.0060.00614.97
5.5.80.0020.01014.97
5.5.70.0060.01014.86
5.5.60.0050.00614.90
5.5.50.0070.00915.00
5.5.40.0050.00714.92
5.5.30.0050.00614.67
5.5.20.0070.00614.86
5.5.10.0060.00615.01
5.5.00.0050.01115.08
5.4.450.0070.02414.75
5.4.440.0110.02214.81
5.4.430.0110.02214.86
5.4.420.0070.02314.82
5.4.410.0090.02314.75
5.4.400.0080.01814.53
5.4.390.0090.02114.48
5.4.380.0120.02114.54
5.4.370.0130.02114.45
5.4.360.0080.02214.57
5.4.350.0090.02414.47
5.4.340.0080.02114.54
5.4.330.0030.00712.49
5.4.320.0050.01712.49
5.4.310.0060.01612.48
5.4.300.0100.01412.41
5.4.290.0040.02012.53
5.4.280.0030.02012.41
5.4.270.0070.02314.71
5.4.260.0090.01814.61
5.4.250.0060.02814.65
5.4.240.0110.02414.64
5.4.230.0080.02214.59
5.4.220.0020.02714.65
5.4.210.0060.02814.60
5.4.200.0050.02514.67
5.4.190.0050.02314.63
5.4.180.0060.02114.67
5.4.170.0080.02014.59
5.4.160.0070.02114.64
5.4.150.0090.02714.64
5.4.140.0090.02613.87
5.4.130.0070.02413.80
5.4.120.0050.02213.79
5.4.110.0100.02513.84
5.4.100.0080.01713.88
5.4.90.0080.02213.89
5.4.80.0100.02013.83
5.4.70.0090.02413.79
5.4.60.0070.01913.89
5.4.50.0070.01913.75
5.4.40.0100.02213.87
5.4.30.0090.01913.83
5.4.20.0060.02213.87
5.4.10.0090.02313.83
5.4.00.0120.01713.58
5.3.290.0030.02012.81
5.3.280.0080.02213.44
5.3.270.0040.02313.32
5.3.260.0120.01613.49
5.3.250.0080.02113.34
5.3.240.0080.01813.38
5.3.230.0080.02513.29
5.3.220.0070.02113.34
5.3.210.0070.02213.19
5.3.200.0040.02113.24
5.3.190.0040.02413.36
5.3.180.0010.02613.35
5.3.170.0070.02813.34
5.3.160.0110.01713.30
5.3.150.0080.02013.25
5.3.140.0030.02213.33
5.3.130.0060.02713.28
5.3.120.0060.02413.26
5.3.110.0060.02213.36
5.3.100.0060.02213.04
5.3.90.0080.02313.14
5.3.80.0030.02613.04
5.3.70.0080.02413.16
5.3.60.0050.02313.15
5.3.50.0070.02113.23
5.3.40.0030.02413.12
5.3.30.0120.01313.05
5.3.20.0050.02713.04
5.3.10.0110.02112.96
5.3.00.0060.02812.90
5.2.170.0100.03711.43
5.2.160.0100.06011.45
5.2.150.0100.05311.43
5.2.140.0130.04311.38
5.2.130.0200.05011.10
5.2.120.0070.05311.41
5.2.110.0100.04311.31
5.2.100.0100.04011.38
5.2.90.0070.04011.29
5.2.80.0030.04711.09
5.2.70.0030.05310.97
5.2.60.0070.04311.35
5.2.50.0100.04011.19
5.2.40.0130.03711.21
5.2.30.0000.04711.26
5.2.20.0130.04711.07
5.2.10.0170.04010.85
5.2.00.0200.04010.89
5.1.60.0130.04010.09
5.1.50.0100.04010.18
5.1.40.0100.03310.06
5.1.30.0170.03710.63
5.1.20.0030.04010.24
5.1.10.0100.04010.25
5.1.00.0070.03710.33
5.0.50.0030.0308.85
5.0.40.0070.0238.72
5.0.30.0070.0438.43
5.0.20.0070.0338.51
5.0.10.0030.0338.43
5.0.00.0070.0408.43
4.4.90.0030.0208.43
4.4.80.0000.0308.43
4.4.70.0000.0278.43
4.4.60.0030.0238.43
4.4.50.0030.0308.43
4.4.40.0000.0438.43
4.4.30.0100.0208.43
4.4.20.0000.0278.43
4.4.10.0030.0308.43
4.4.00.0030.0338.43
4.3.110.0030.0278.43
4.3.100.0070.0278.43
4.3.90.0000.0278.43
4.3.80.0070.0308.43
4.3.70.0070.0208.43
4.3.60.0030.0238.43
4.3.50.0030.0278.43
4.3.40.0000.0338.43
4.3.30.0070.0278.43
4.3.20.0030.0278.43
4.3.10.0070.0278.43
4.3.00.0070.0177.72

preferences:
44.96 ms | 401 KiB | 5 Q