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);

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)
8.3.60.0120.00918.53
8.3.50.0070.01222.00
8.3.40.0120.00318.67
8.3.30.0070.00718.92
8.3.20.0070.00020.38
8.3.10.0040.00422.00
8.3.00.0040.00422.39
8.2.180.0090.00618.25
8.2.170.0040.01122.96
8.2.160.0100.00320.82
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0080.00017.38
8.2.110.0030.00622.08
8.2.100.0040.00817.78
8.2.90.0000.00719.21
8.2.80.0060.00317.97
8.2.70.0080.00017.50
8.2.60.0080.00017.80
8.2.50.0050.00318.07
8.2.40.0040.00418.09
8.2.30.0000.01018.11
8.2.20.0000.00717.61
8.2.10.0040.00419.47
8.2.00.0080.00017.60
8.1.280.0110.00725.92
8.1.270.0050.00322.20
8.1.260.0040.00426.35
8.1.250.0050.00328.09
8.1.240.0030.00623.83
8.1.230.0040.00719.01
8.1.220.0080.00017.74
8.1.210.0050.00318.77
8.1.200.0060.00317.35
8.1.190.0080.00017.18
8.1.180.0060.00318.10
8.1.170.0040.00418.61
8.1.160.0050.00322.02
8.1.150.0000.00718.51
8.1.140.0000.00717.31
8.1.130.0020.00517.88
8.1.120.0040.00417.43
8.1.110.0000.00717.39
8.1.100.0080.00017.29
8.1.90.0050.00217.19
8.1.80.0000.00717.43
8.1.70.0070.00017.34
8.1.60.0080.00417.54
8.1.50.0050.00317.52
8.1.40.0040.00417.50
8.1.30.0000.00717.63
8.1.20.0080.00017.66
8.1.10.0070.00017.49
8.1.00.0000.00717.34
8.0.300.0040.00418.77
8.0.290.0040.00417.16
8.0.280.0030.00318.32
8.0.270.0000.00717.20
8.0.260.0050.00316.70
8.0.250.0000.00616.91
8.0.240.0040.00416.86
8.0.230.0070.00016.89
8.0.220.0030.00316.72
8.0.210.0040.00416.69
8.0.200.0000.00716.90
8.0.190.0050.00316.88
8.0.180.0030.00716.88
8.0.170.0000.00816.89
8.0.160.0000.00716.78
8.0.150.0000.00916.82
8.0.140.0060.00316.80
8.0.130.0060.00013.30
8.0.120.0050.00316.82
8.0.110.0040.00416.89
8.0.100.0070.00016.90
8.0.90.0000.00716.88
8.0.80.0090.00616.80
8.0.70.0040.00416.82
8.0.60.0070.00016.79
8.0.50.0050.00216.70
8.0.30.0060.01317.01
8.0.20.0150.00517.40
8.0.10.0080.00016.74
8.0.00.0050.01516.78
7.4.330.0030.00315.00
7.4.320.0000.00716.61
7.4.300.0060.00016.61
7.4.290.0080.00016.36
7.4.280.0040.00416.64
7.4.270.0000.00616.53
7.4.260.0050.00316.37
7.4.250.0040.00416.59
7.4.240.0040.00416.57
7.4.230.0070.00016.54
7.4.220.0060.01216.63
7.4.210.0050.01416.62
7.4.200.0070.00016.49
7.4.190.0070.00016.77
7.4.160.0110.00516.46
7.4.150.0210.00417.40
7.4.140.0080.00917.86
7.4.130.0070.01216.66
7.4.120.0120.00616.55
7.4.110.0030.01416.66
7.4.100.0150.00916.56
7.4.90.0030.01416.43
7.4.80.0000.01719.39
7.4.70.0130.00416.53
7.4.60.0100.01416.57
7.4.50.0040.00416.34
7.4.40.0040.01122.77
7.4.30.0080.00816.36
7.4.00.0040.01114.85
7.3.330.0040.00413.30
7.3.320.0000.00613.17
7.3.310.0050.00216.30
7.3.300.0000.00716.20
7.3.290.0070.00716.25
7.3.280.0080.00716.26
7.3.270.0150.00317.40
7.3.260.0030.01316.32
7.3.250.0080.00916.39
7.3.240.0100.00716.45
7.3.230.0060.01316.64
7.3.210.0150.00316.30
7.3.200.0060.01219.39
7.3.190.0150.00716.51
7.3.180.0090.00616.32
7.3.170.0140.00316.38
7.3.160.0100.00716.52
7.3.120.0050.01214.81
7.3.110.0110.00414.75
7.3.100.0040.00814.55
7.3.90.0030.01014.93
7.3.80.0000.01614.78
7.3.70.0090.00614.59
7.3.60.0070.00414.62
7.3.50.0080.00814.87
7.3.40.0060.01014.49
7.3.30.0090.00614.82
7.3.20.0040.01116.47
7.3.10.0030.01216.56
7.3.00.0080.00816.46
7.2.330.0090.01116.34
7.2.320.0090.01416.58
7.2.310.0070.01016.72
7.2.300.0040.01316.70
7.2.290.0100.00716.70
7.2.250.0060.01214.64
7.2.240.0030.01415.25
7.2.230.0070.01114.52
7.2.220.0100.01014.89
7.2.210.0070.00715.13
7.2.200.0040.01114.91
7.2.190.0060.00314.75
7.2.180.0080.00615.15
7.2.170.0030.01614.98
7.2.60.0080.00616.80
7.2.00.0030.00719.26
7.1.330.0100.00615.71
7.1.320.0140.00015.96
7.1.310.0070.00715.74
7.1.300.0090.00615.99
7.1.290.0030.00715.68
7.1.280.0030.01215.57
7.1.270.0080.00315.95
7.1.260.0030.01315.68
7.1.200.0040.00815.88
7.1.100.0030.01117.72
7.1.70.0000.01317.23
7.1.60.0060.01217.27
7.1.50.0090.01316.95
7.1.00.0000.07722.44
7.0.200.0080.00816.69
7.0.140.0070.07022.12
7.0.60.0130.03019.95
7.0.50.0000.04317.84
7.0.40.0070.07020.27
7.0.30.0300.07320.25
7.0.20.0200.05720.20
7.0.10.0300.04320.26
7.0.00.0100.04020.10
5.6.280.0070.07020.81
5.6.210.0030.07720.55
5.6.200.0030.04018.12
5.6.190.0030.07720.47
5.6.180.0030.08720.65
5.6.170.0300.05020.51
5.6.160.0070.04020.50
5.6.150.0170.03018.23
5.6.140.0030.05718.16
5.6.130.0030.04718.15
5.6.120.0070.05021.01
5.6.110.0130.03021.14
5.6.100.0070.03720.91
5.6.90.0070.06321.00
5.6.80.0100.07020.51
5.6.70.0200.06020.40
5.5.350.0000.06320.44
5.5.340.0030.09017.95
5.5.330.0100.08020.42
5.5.320.0270.04720.57
5.5.310.0230.07320.41
5.5.300.0030.04717.98
5.5.290.0030.05718.03
5.5.280.0230.06020.89
5.5.270.0070.09020.84
5.5.260.0030.06720.77
5.5.250.0070.03720.68
5.5.240.0100.03720.23
5.4.450.0600.06319.17
5.4.440.0200.05019.58
5.4.430.0070.05719.22
5.4.420.0100.05319.38
5.4.410.0170.06319.03
5.4.400.0270.06718.79
5.4.390.0230.06718.77
5.4.380.0230.05718.56
5.4.370.0100.04018.72
5.4.360.0100.04018.68
5.4.350.0100.04412.02
5.4.340.0080.03312.02
5.4.320.0050.04212.50
5.4.310.0070.04112.50
5.4.300.0030.03912.50
5.4.290.0060.05012.50
5.4.280.0060.03812.39
5.4.270.0170.06718.94
5.4.260.0100.05018.99
5.4.250.0070.06018.90
5.4.240.0070.07319.05
5.4.230.0100.05719.06
5.4.220.0100.07319.07
5.4.210.0230.04319.23
5.4.200.0200.06018.91
5.4.190.0170.06019.00
5.4.180.0030.05719.02
5.4.170.0270.03719.02
5.4.160.0100.05718.90
5.4.150.0100.05018.96
5.4.140.0070.05016.54
5.4.130.0030.06316.57
5.4.120.0170.04016.50
5.4.110.0030.07716.48
5.4.100.0030.05316.67
5.4.90.0030.05016.65
5.4.80.0030.05716.61
5.4.70.0130.04716.71
5.4.60.0100.07016.55
5.4.50.0130.05716.50
5.4.40.0000.06016.67
5.4.30.0130.07316.61
5.4.20.0100.05016.39
5.4.10.0100.05016.54
5.4.00.0100.06316.11
5.3.290.0070.04712.80
5.3.280.0130.05314.65
5.3.270.0200.06314.89
5.3.260.0100.05314.89
5.3.250.0200.04314.86
5.3.240.0200.04014.48
5.3.230.0130.05014.66
5.3.220.0100.05314.83
5.3.210.0030.05714.86
5.3.200.0070.05014.61
5.3.190.0170.04014.78
5.3.180.0000.05714.86
5.3.170.0100.05014.61
5.3.160.0000.06014.75
5.3.150.0100.07314.83
5.3.140.0200.06014.61
5.3.130.0170.04314.83
5.3.120.0170.04714.71
5.3.110.0100.05714.82
5.3.100.0170.04714.32
5.3.90.0100.06314.28
5.3.80.0130.06714.09
5.3.70.0170.06014.23
5.3.60.0070.05314.17
5.3.50.0200.05714.17
5.3.40.0070.06314.24
5.3.30.0100.06313.96
5.3.20.0170.04713.75
5.3.10.0030.07013.52
5.3.00.0130.04313.93
5.2.170.0000.05011.26
5.2.160.0130.03311.44
5.2.150.0100.05311.41
5.2.140.0170.03711.26
5.2.130.0100.04711.39
5.2.120.0100.05011.41
5.2.110.0100.03711.39
5.2.100.0130.03711.40
5.2.90.0070.05311.31
5.2.80.0070.04711.21
5.2.70.0070.05011.14
5.2.60.0100.03711.12
5.2.50.0030.05011.22
5.2.40.0100.04311.00
5.2.30.0070.04711.02
5.2.20.0030.06011.00
5.2.10.0070.04311.07
5.2.00.0070.04311.02
5.1.60.0170.0309.97
5.1.50.0070.03710.27
5.1.40.0000.04010.17
5.1.30.0100.04710.34
5.1.20.0030.05310.36
5.1.10.0070.03310.36
5.1.00.0100.04010.25
5.0.50.0030.0308.59
5.0.40.0130.0208.29
5.0.30.0070.0408.51
5.0.20.0000.0378.09
5.0.10.0030.0338.39
5.0.00.0130.0438.04
4.4.90.0030.0207.62
4.4.80.0000.0237.62
4.4.70.0030.0237.62
4.4.60.0000.0237.62
4.4.50.0000.0337.62
4.4.40.0030.0337.62
4.4.30.0030.0207.62
4.4.20.0030.0307.62
4.4.10.0070.0207.62
4.4.00.0030.0377.62
4.3.110.0070.0277.62
4.3.100.0000.0237.62
4.3.90.0030.0207.62
4.3.80.0070.0337.62
4.3.70.0070.0207.62
4.3.60.0000.0337.62
4.3.50.0000.0277.62
4.3.40.0100.0337.62
4.3.30.0070.0237.62
4.3.20.0030.0307.62
4.3.10.0030.0307.62
4.3.00.0130.0207.31

preferences:
52.2 ms | 401 KiB | 5 Q