3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = new ArrayObject(array(1, 2)); $it = $array->getIterator(); while ($it->valid()) { echo $it->current(); $prev = clone $it; $it->next(); } $array[] = 3; $it = $prev; $prev->next(); echo $it->valid() ? $it->current() : "not valid";

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)
8.3.40.0000.01418.70
8.3.30.0040.01120.41
8.3.20.0030.00620.29
8.3.10.0080.00022.03
8.3.00.0000.00822.30
8.2.170.0110.00322.96
8.2.160.0110.00320.32
8.2.150.0030.00524.18
8.2.140.0030.00624.66
8.2.130.0040.00426.16
8.2.120.0080.00019.50
8.2.110.0030.00720.33
8.2.100.0070.00417.97
8.2.90.0050.00319.22
8.2.80.0000.00819.26
8.2.70.0030.00617.63
8.2.60.0000.00818.05
8.2.50.0040.00418.07
8.2.40.0000.00818.47
8.2.30.0040.00418.13
8.2.20.0020.00517.63
8.2.10.0080.00017.76
8.2.00.0040.00417.73
8.1.270.0070.01120.58
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0090.00323.91
8.1.230.0070.00420.98
8.1.220.0000.00717.74
8.1.210.0050.00518.77
8.1.200.0060.00317.13
8.1.190.0040.00417.42
8.1.180.0040.00418.58
8.1.170.0000.00818.60
8.1.160.0040.00422.14
8.1.150.0050.00318.59
8.1.140.0000.00817.35
8.1.130.0070.00017.87
8.1.120.0000.00717.29
8.1.110.0000.00817.31
8.1.100.0000.00717.29
8.1.90.0000.00717.40
8.1.80.0000.00717.45
8.1.70.0000.00717.30
8.1.60.0040.00417.47
8.1.50.0040.00417.56
8.1.40.0000.00817.42
8.1.30.0000.00817.56
8.1.20.0000.00917.63
8.1.10.0040.00417.48
8.1.00.0000.00817.52
8.0.300.0040.00418.77
8.0.290.0030.00317.05
8.0.280.0030.00318.37
8.0.270.0030.00317.13
8.0.260.0060.00016.70
8.0.250.0000.00716.92
8.0.240.0030.00516.93
8.0.230.0070.00016.85
8.0.220.0000.00716.72
8.0.210.0000.00716.80
8.0.200.0040.00416.79
8.0.190.0050.00316.95
8.0.180.0080.00016.76
8.0.170.0040.00416.87
8.0.160.0040.00416.81
8.0.150.0000.00816.68
8.0.140.0030.00516.83
8.0.130.0030.00313.21
8.0.120.0030.00616.82
8.0.110.0000.00716.80
8.0.100.0000.00716.67
8.0.90.0000.00716.70
8.0.80.0100.00716.82
8.0.70.0000.00816.89
8.0.60.0070.00016.66
8.0.50.0040.00416.69
8.0.30.0120.00717.05
8.0.20.0090.00917.40
8.0.10.0000.00716.92
8.0.00.0070.01516.77
7.4.330.0050.00015.00
7.4.320.0060.00016.34
7.4.300.0030.00316.46
7.4.290.0000.00716.30
7.4.280.0000.00716.48
7.4.270.0030.00316.38
7.4.260.0050.00216.47
7.4.250.0040.00416.32
7.4.240.0020.00616.42
7.4.230.0000.00716.43
7.4.220.0090.00916.56
7.4.210.0070.00916.52
7.4.200.0030.00316.29
7.4.190.0070.00016.25
7.4.160.0100.00616.33
7.4.150.0070.01117.40
7.4.140.0100.01117.86
7.4.130.0080.01016.31
7.4.120.0140.00316.61
7.4.110.0090.00916.41
7.4.100.0100.00716.59
7.4.90.0110.00816.35
7.4.80.0120.00819.39
7.4.70.0060.01216.57
7.4.60.0170.00316.49
7.4.50.0000.00516.15
7.4.40.0110.00022.77
7.4.30.0100.00616.50
7.4.00.0080.00414.64
7.3.330.0000.00513.17
7.3.320.0000.00613.05
7.3.310.0040.00416.30
7.3.300.0030.00316.18
7.3.290.0030.01016.37
7.3.280.0080.00616.38
7.3.270.0090.00917.40
7.3.260.0060.01116.31
7.3.250.0100.01116.49
7.3.240.0100.00916.36
7.3.230.0110.00716.65
7.3.210.0070.01016.28
7.3.200.0150.00619.39
7.3.190.0040.01716.66
7.3.180.0090.00616.35
7.3.170.0090.00716.50
7.3.160.0090.00616.41
7.3.120.0080.00814.85
7.3.10.0050.00816.69
7.3.00.0040.01016.46
7.2.330.0120.00616.75
7.2.320.0110.01716.53
7.2.310.0160.00316.82
7.2.300.0140.00416.81
7.2.290.0060.00916.43
7.2.130.0020.01316.93
7.2.120.0040.00817.02
7.2.110.0070.00716.97
7.2.100.0090.00416.79
7.2.90.0110.00416.98
7.2.80.0060.00616.87
7.2.70.0090.00416.86
7.2.60.0080.00316.96
7.2.50.0040.00916.79
7.2.40.0110.00316.99
7.2.30.0090.00416.92
7.2.20.0080.00516.96
7.2.10.0050.01016.97
7.2.00.0030.00917.54
7.1.250.0060.00715.70
7.1.100.0100.00318.00
7.1.70.0060.00316.95
7.1.60.0000.01316.99
7.1.50.0060.01616.98
7.1.00.0070.04022.31
7.0.200.0090.00616.69
7.0.140.0030.07322.15
7.0.60.0130.07019.96
7.0.50.0030.04317.90
7.0.40.0100.08720.40
7.0.30.0270.08020.17
7.0.20.0200.06020.09
7.0.10.0430.04720.12
7.0.00.0070.08720.09
5.6.280.0070.07021.09
5.6.210.0030.06720.43
5.6.200.0070.04318.20
5.6.190.0170.06720.48
5.6.180.3500.04720.68
5.6.170.0230.04320.42
5.6.160.0130.08020.40
5.6.150.0030.07718.18
5.6.140.0000.04018.15
5.6.130.0070.03718.20
5.6.120.0030.05321.03
5.6.110.0000.04721.11
5.6.100.0100.06321.04
5.6.90.0130.05020.96
5.6.80.0030.05020.37
5.6.70.0270.06320.27
5.5.350.0170.08020.40
5.5.340.0030.08717.91
5.5.330.0200.06020.24
5.5.320.0200.07020.34
5.5.310.0330.06320.33
5.5.300.0130.07717.96
5.5.290.0170.07317.95
5.5.280.0000.04320.87
5.5.270.0100.06720.86
5.5.260.0070.09020.77
5.5.250.0030.07720.50
5.5.240.0070.04320.25
5.4.450.0730.06319.14
5.4.440.0900.05019.10
5.4.430.0530.05319.54
5.4.420.0930.04319.44
5.4.410.0530.05319.19
5.4.400.0970.07018.75
5.4.390.1100.06718.53
5.4.380.0370.04318.77
5.4.370.0070.05718.46
5.4.360.0200.04718.63
5.4.350.0090.04511.97
5.4.340.0050.03711.97
5.4.320.0040.04112.46
5.4.310.0050.03912.46
5.4.300.0090.03312.46
5.4.290.0100.04512.46
5.4.280.0090.03412.35
5.4.270.0070.04012.35
5.4.260.0090.04112.35
5.4.250.0100.04718.91
5.4.240.0130.06018.97
5.4.230.0100.05318.77
5.4.220.0100.05018.85
5.4.210.0100.05018.68
5.4.200.0070.05318.86
5.4.190.0070.05018.96
5.4.180.0100.04718.89
5.4.170.0100.05018.73
5.4.160.0070.05018.84
5.4.150.0000.06318.70
5.4.140.0170.04016.26
5.4.130.0030.05016.48
5.4.120.0070.05016.25
5.4.110.0030.05316.32
5.4.100.0100.05716.42
5.4.90.0100.04316.40
5.4.80.0000.05316.36
5.4.70.0100.05016.16
5.4.60.0030.05016.47
5.4.50.0130.04016.38
5.4.40.0030.05016.39
5.4.30.0100.04716.15
5.4.20.0030.05316.47
5.4.10.0000.05316.30
5.4.00.0070.04715.73
5.3.290.0110.03812.80
5.3.280.0170.04314.63
5.3.270.0130.04714.62
5.3.260.0130.04714.44
5.3.250.0030.06014.45
5.3.240.0030.05314.61
5.3.230.0100.07014.48
5.3.220.0070.05014.47
5.3.210.0230.04714.61
5.3.200.0030.05314.29
5.3.190.0130.04714.45
5.3.180.0030.05314.57
5.3.170.0030.05014.43
5.3.160.0070.05014.45
5.3.150.0100.04714.61
5.3.140.0030.05314.55
5.3.130.0100.04714.56
5.3.120.0000.06014.56
5.3.110.0070.05014.56
5.3.100.0100.05314.02
5.3.90.0070.05313.86
5.3.80.0070.05314.16
5.3.70.0070.05014.11
5.3.60.0100.04714.01
5.3.50.0070.05013.79
5.3.40.0100.04313.96
5.3.30.0170.05713.76
5.3.20.0070.05713.40
5.3.10.0030.05013.66
5.3.00.0030.05313.54
5.2.170.0130.03311.23
5.2.160.0070.03711.25
5.2.150.0030.04011.16
5.2.140.0000.04311.23
5.2.130.0070.03711.10
5.2.120.0130.03010.98
5.2.110.0100.03311.20
5.2.100.0070.03710.98
5.2.90.0100.04011.10
5.2.80.0130.04011.00
5.2.70.0070.04011.09
5.2.60.0130.04711.17
5.2.50.0100.04310.78
5.2.40.0070.04310.91
5.2.30.0100.03310.96
5.2.20.0070.03711.07
5.2.10.0030.04010.82
5.2.00.0030.04010.69
5.1.60.0030.03310.14
5.1.50.0100.03010.14
5.1.40.0130.0239.94
5.1.30.0030.03310.32
5.1.20.0070.03310.33
5.1.10.0030.03710.17
5.1.00.0000.03710.03
5.0.50.0030.0308.38
5.0.40.0070.0238.50
5.0.30.0030.0408.22
5.0.20.0000.0308.27
5.0.10.0070.0238.21
5.0.00.0030.0408.11
4.4.90.0070.0206.09
4.4.80.0070.0176.09
4.4.70.0000.0236.09
4.4.60.0000.0236.09
4.4.50.0070.0176.09
4.4.40.0030.0306.09
4.4.30.0000.0236.09
4.4.20.0070.0176.09
4.4.10.0030.0206.09
4.4.00.0000.0336.09
4.3.110.0070.0176.09
4.3.100.0000.0236.98
4.3.90.0000.0206.98
4.3.80.0100.0236.98
4.3.70.0030.0206.98
4.3.60.0070.0176.98
4.3.50.0030.0306.98
4.3.40.0030.0336.98
4.3.30.0000.0236.98
4.3.20.0000.0236.98
4.3.10.0000.0306.98
4.3.00.0100.0237.96

preferences:
45.19 ms | 400 KiB | 5 Q