3v4l.org

run code in 300+ PHP versions simultaneously
<?php class x { public function __construct() { $x =& $this; $x = new stdClass; var_dump($this); } } $inst = new x; var_dump($inst);

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)
8.3.60.0070.01418.31
8.3.50.0100.01222.17
8.3.40.0070.01518.68
8.3.30.0080.00820.17
8.3.20.0120.00620.34
8.3.10.0000.01422.08
8.3.00.0070.01022.43
8.2.180.0040.01118.26
8.2.170.0140.00022.96
8.2.160.0110.00420.35
8.2.150.0060.00324.18
8.2.140.0030.00524.66
8.2.130.0060.00326.16
8.2.120.0080.00019.54
8.2.110.0060.00320.97
8.2.100.0080.00417.91
8.2.90.0040.00419.05
8.2.80.0000.00817.97
8.2.70.0090.00017.50
8.2.60.0060.00317.80
8.2.50.0030.00618.07
8.2.40.0060.00318.09
8.2.30.0040.00417.87
8.2.20.0020.00517.48
8.2.10.0050.00517.69
8.2.00.0000.00817.61
8.1.280.0100.01025.92
8.1.270.0070.00024.66
8.1.260.0100.00726.35
8.1.250.0030.01428.09
8.1.240.0040.00421.12
8.1.230.0060.00617.45
8.1.220.0030.00517.74
8.1.210.0080.00018.77
8.1.200.0000.01017.23
8.1.190.0030.00517.23
8.1.180.0040.00420.12
8.1.170.0000.00818.45
8.1.160.0040.00422.04
8.1.150.0050.00318.45
8.1.140.0000.01017.43
8.1.130.0030.00317.83
8.1.120.0040.00417.33
8.1.110.0000.00717.45
8.1.100.0040.00417.23
8.1.90.0000.00717.39
8.1.80.0030.00517.45
8.1.70.0000.00717.35
8.1.60.0060.00317.63
8.1.50.0090.00017.56
8.1.40.0030.00617.44
8.1.30.0060.00317.61
8.1.20.0040.00417.65
8.1.10.0040.00417.50
8.1.00.0030.00517.42
8.0.300.0000.00818.77
8.0.290.0000.00716.63
8.0.280.0000.00818.29
8.0.270.0070.00017.06
8.0.260.0070.00016.64
8.0.250.0030.00316.73
8.0.240.0050.00316.85
8.0.230.0000.00716.92
8.0.220.0040.00416.72
8.0.210.0030.00316.73
8.0.200.0050.00216.82
8.0.190.0000.00716.84
8.0.180.0040.00416.84
8.0.170.0060.00316.75
8.0.160.0000.00716.70
8.0.150.0040.00416.82
8.0.140.0000.00816.69
8.0.130.0030.00313.28
8.0.120.0040.00416.82
8.0.110.0000.00816.86
8.0.100.0000.00716.86
8.0.90.0000.00716.71
8.0.80.0090.00616.80
8.0.70.0050.00216.67
8.0.60.0020.00516.70
8.0.50.0040.00416.80
8.0.30.0140.00716.95
8.0.20.0120.00617.40
8.0.10.0040.00416.88
8.0.00.0150.00916.74
7.4.330.0000.00715.00
7.4.320.0030.00316.52
7.4.300.0090.00016.46
7.4.290.0030.00316.58
7.4.280.0030.00316.48
7.4.270.0000.00716.49
7.4.260.0040.00416.56
7.4.250.0030.00516.56
7.4.240.0020.00516.57
7.4.230.0030.00316.53
7.4.220.0060.01216.68
7.4.210.0080.00816.61
7.4.200.0070.00016.25
7.4.190.0030.00516.73
7.4.160.0030.01316.34
7.4.150.0040.01917.40
7.4.140.0100.01017.86
7.4.130.0090.00716.42
7.4.120.0060.01216.47
7.4.110.0130.00316.29
7.4.100.0070.01116.49
7.4.90.0110.00816.66
7.4.80.0060.01319.39
7.4.70.0090.00616.41
7.4.60.0030.01316.51
7.4.50.0030.00516.30
7.4.40.0130.00222.77
7.4.30.0030.01416.62
7.4.00.0120.00514.89
7.3.330.0030.00313.02
7.3.320.0030.00313.00
7.3.310.0020.00516.13
7.3.300.0070.00016.18
7.3.290.0130.00316.23
7.3.280.0070.00916.21
7.3.270.0160.00317.40
7.3.260.0120.00916.28
7.3.250.0160.00316.27
7.3.240.0140.00416.50
7.3.230.0080.00816.39
7.3.210.0030.01316.29
7.3.200.0040.01219.39
7.3.190.0130.00316.26
7.3.180.0130.00716.34
7.3.170.0120.00916.51
7.3.160.0150.00416.50
7.3.120.0060.01014.52
7.3.110.0070.01114.69
7.3.100.0070.01014.58
7.3.90.0000.01314.87
7.3.80.0060.00314.62
7.3.70.0030.01014.84
7.3.60.0000.00814.73
7.3.50.0030.01014.95
7.3.40.0100.00314.55
7.3.30.0080.00314.76
7.3.20.0090.00616.60
7.3.10.0090.00616.40
7.3.00.0040.01116.58
7.2.330.0140.00616.48
7.2.320.0120.01216.43
7.2.310.0070.01016.28
7.2.300.0030.01416.27
7.2.290.0070.01016.70
7.2.250.0090.00615.11
7.2.240.0070.01514.87
7.2.230.0100.00314.91
7.2.220.0000.01014.77
7.2.210.0060.00914.44
7.2.200.0030.00915.13
7.2.190.0030.01014.70
7.2.180.0040.00814.74
7.2.170.0080.00614.86
7.2.130.0030.00916.92
7.2.120.0000.01016.85
7.2.110.0000.01216.91
7.2.100.0060.00916.97
7.2.90.0090.00316.57
7.2.80.0040.00716.99
7.2.70.0060.00616.93
7.2.60.0040.00716.67
7.2.50.0030.00616.75
7.2.40.0030.01016.85
7.2.30.0060.00616.83
7.2.20.0060.00316.74
7.2.10.0060.00916.90
7.2.00.0030.01117.92
7.1.330.0100.00715.84
7.1.320.0030.01015.83
7.1.310.0060.00616.03
7.1.300.0000.01315.75
7.1.290.0080.00415.68
7.1.280.0080.00015.61
7.1.270.0070.01015.77
7.1.260.0060.00915.66
7.1.250.0030.00915.98
7.1.200.0060.00315.70
7.1.100.0080.00318.29
7.1.70.0030.00717.26
7.1.60.0130.01019.43
7.1.50.0130.01016.98
7.1.00.0100.04722.40
7.0.200.0030.00616.63
7.0.140.0100.06722.10
7.0.60.0100.07319.91
7.0.50.0070.07717.78
7.0.40.0100.04020.11
7.0.30.0230.04720.21
7.0.20.0300.04320.23
7.0.10.0070.04020.10
7.0.00.0100.08020.09
5.6.280.0030.07321.03
5.6.210.0170.07320.77
5.6.200.0030.04018.16
5.6.190.0130.03720.64
5.6.180.3600.04020.42
5.6.170.0200.04720.46
5.6.160.0030.09020.39
5.6.150.0130.07318.15
5.6.140.0100.07718.28
5.6.130.0030.03718.14
5.6.120.0070.08021.00
5.6.110.0100.08321.00
5.6.100.0070.07320.98
5.6.90.0070.08321.10
5.6.80.0000.05720.38
5.6.70.2530.03720.51
5.5.350.0100.07320.43
5.5.340.0070.04018.07
5.5.330.0100.05320.32
5.5.320.0230.08720.25
5.5.310.0300.06020.21
5.5.300.0030.05017.94
5.5.290.0070.04717.98
5.5.280.0130.07720.90
5.5.270.0000.05020.64
5.5.260.0070.03720.89
5.5.250.0070.04320.66
5.5.240.0100.07320.21
5.4.450.0530.06319.61
5.4.440.0700.05719.30
5.4.430.0800.05019.63
5.4.420.0830.05019.47
5.4.410.0730.06019.34
5.4.400.0730.05719.31
5.4.390.0900.05018.97
5.4.380.0170.06018.75
5.4.370.0130.05718.54
5.4.360.0200.03018.75
5.4.350.0110.03212.02
5.4.340.0080.03612.02
5.4.320.0050.04312.50
5.4.310.0050.04512.50
5.4.300.0060.04112.50
5.4.290.0080.04312.50
5.4.280.0080.04412.39
5.4.270.0090.04012.39
5.4.260.0080.03912.39
5.4.250.0090.03712.39
5.4.240.0200.04018.82
5.4.230.0070.05318.94
5.4.220.0130.06019.09
5.4.210.0130.05318.98
5.4.200.0030.05718.77
5.4.190.0070.05718.89
5.4.180.0170.04718.76
5.4.170.0130.06018.95
5.4.160.0170.04018.93
5.4.150.0070.05719.01
5.4.140.0100.05016.57
5.4.130.0170.04716.39
5.4.120.0030.07316.38
5.4.110.0100.05016.47
5.4.100.0170.04316.41
5.4.90.0030.07016.48
5.4.80.0030.05316.54
5.4.70.0130.04716.39
5.4.60.0100.05016.52
5.4.50.0100.05316.59
5.4.40.0030.05716.46
5.4.30.0100.05016.59
5.4.20.0070.05716.52
5.4.10.0100.05016.38
5.4.00.0030.05315.83
5.3.290.0070.04812.80
5.3.280.0100.06014.68
5.3.270.0070.05014.43
5.3.260.0070.05314.78
5.3.250.0070.06014.50
5.3.240.0200.04014.66
5.3.230.0100.04314.56
5.3.220.0070.05314.74
5.3.210.0000.06014.53
5.3.200.0100.08014.70
5.3.190.0100.06314.60
5.3.180.0030.05714.62
5.3.170.0200.04314.58
5.3.160.0200.05714.75
5.3.150.0070.07014.72
5.3.140.0130.05014.55
5.3.130.0070.07314.52
5.3.120.0030.06314.73
5.3.110.0070.05314.54
5.3.100.0170.04014.03
5.3.90.0130.06314.01
5.3.80.0030.05314.18
5.3.70.0130.04314.23
5.3.60.0030.05314.08
5.3.50.0200.04013.86
5.3.40.0030.05014.05
5.3.30.0070.04714.13
5.3.20.0070.06013.60
5.3.10.0000.05313.66
5.3.00.0230.03013.62
5.2.170.0070.04011.13
5.2.160.0070.03711.23
5.2.150.0100.03711.23
5.2.140.0100.03711.13
5.2.130.0070.04711.09
5.2.120.0130.05011.17
5.2.110.0070.04711.00
5.2.100.0070.04011.07
5.2.90.0030.04011.18
5.2.80.0070.04011.07
5.2.70.0030.05011.07
5.2.60.0100.03311.21
5.2.50.0070.04311.19
5.2.40.0100.04011.05
5.2.30.0070.03711.19
5.2.20.0000.04310.95
5.2.10.0070.03710.93
5.2.00.0130.04310.70
5.1.60.0070.03310.06
5.1.50.0100.0379.91
5.1.40.0070.0439.93
5.1.30.0000.05010.30
5.1.20.0070.04710.34
5.1.10.0000.04010.04
5.1.00.0130.04010.16
5.0.50.0000.0338.46
5.0.40.0000.0308.47
5.0.30.0000.0438.31
5.0.20.0070.0238.24
5.0.10.0030.0408.40
5.0.00.0030.0408.15
4.4.90.0070.0176.93
4.4.80.0000.0276.93
4.4.70.0000.0236.93
4.4.60.0030.0206.93
4.4.50.0030.0206.93
4.4.40.0030.0436.93
4.4.30.0070.0276.93
4.4.20.0100.0136.93
4.4.10.0100.0176.93
4.4.00.0030.0336.93
4.3.110.0100.0276.93
4.3.100.0000.0306.93
4.3.90.0030.0306.93
4.3.80.0000.0336.93
4.3.70.0030.0276.93
4.3.60.0030.0206.93
4.3.50.0030.0206.93
4.3.40.0100.0276.93
4.3.30.0030.0206.93
4.3.20.0030.0276.93
4.3.10.0100.0136.93
4.3.00.0200.0207.26

preferences:
37.3 ms | 400 KiB | 5 Q