3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = []; $arr['one'] = 1; $arr['two'] = 2; var_dump($arr); unset($arr['one']); $arr['one'] = 1; var_dump($arr);

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)
8.4.120.0120.00820.71
8.4.110.0140.00622.22
8.4.100.0120.00917.68
8.4.90.0120.00918.61
8.4.80.0060.00218.00
8.4.70.0130.00917.79
8.4.60.0130.00717.52
8.4.50.0160.00517.58
8.4.40.0100.01017.73
8.4.30.0100.01017.70
8.4.20.0100.00619.52
8.4.10.0050.00317.45
8.3.250.0120.00618.81
8.3.240.0100.00916.62
8.3.230.0110.00816.73
8.3.220.0130.00419.05
8.3.210.0130.00516.55
8.3.200.0060.01216.28
8.3.190.0090.01016.98
8.3.180.0080.00218.21
8.3.170.0120.00616.65
8.3.160.0060.01316.28
8.3.150.0090.01217.05
8.3.140.0040.00416.45
8.3.130.0040.00816.64
8.3.120.0040.01120.64
8.3.110.0090.00020.94
8.3.100.0070.00716.54
8.3.90.0000.00726.77
8.3.80.0000.01019.36
8.3.70.0100.01418.43
8.3.60.0140.00418.18
8.3.50.0140.00922.91
8.3.40.0070.01118.61
8.3.30.0070.01418.90
8.3.20.0040.00421.64
8.3.10.0070.00021.85
8.3.00.0050.00321.82
8.2.290.0120.00922.18
8.2.280.0070.00118.30
8.2.270.0000.00816.56
8.2.260.0070.01119.01
8.2.250.0040.00416.55
8.2.240.0090.00018.84
8.2.230.0070.00322.58
8.2.220.0050.00516.68
8.2.210.0000.00826.77
8.2.200.0040.00818.88
8.2.190.0090.00616.63
8.2.180.0080.00818.29
8.2.170.0120.00922.96
8.2.160.0070.00721.95
8.2.150.0060.00324.18
8.2.140.0000.00824.66
8.2.130.0000.00719.83
8.2.120.0000.00726.35
8.2.110.0060.00319.18
8.2.100.0120.00017.72
8.2.90.0050.00517.93
8.2.80.0050.00319.07
8.2.70.0070.00317.93
8.2.60.0040.00417.97
8.2.50.0000.00818.10
8.2.40.0090.00022.27
8.2.30.0040.00419.33
8.2.20.0040.00418.02
8.2.10.0040.00417.93
8.2.00.0050.00217.55
8.1.330.0100.00821.77
8.1.320.0070.00816.13
8.1.310.0100.00616.81
8.1.300.0030.00616.06
8.1.290.0050.00530.84
8.1.280.0110.00425.92
8.1.270.0050.00320.16
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0040.00422.23
8.1.230.0060.00620.84
8.1.220.0000.00817.74
8.1.210.0050.00318.82
8.1.200.0000.01217.34
8.1.190.0080.00017.36
8.1.180.0000.00818.10
8.1.170.0040.00418.59
8.1.160.0040.00418.76
8.1.150.0070.00020.34
8.1.140.0000.00719.44
8.1.130.0030.00318.89
8.1.120.0000.00717.29
8.1.110.0000.00817.31
8.1.100.0000.00817.40
8.1.90.0050.00217.30
8.1.80.0040.00417.44
8.1.70.0030.00517.41
8.1.60.0040.00417.59
8.1.50.0000.00717.46
8.1.40.0000.00817.48
8.1.30.0080.00017.45
8.1.20.0000.00717.63
8.1.10.0030.00617.49
8.1.00.0050.00217.48
8.0.300.0030.00420.16
8.0.290.0090.00016.75
8.0.280.0070.00018.30
8.0.270.0020.00517.20
8.0.260.0080.00017.15
8.0.250.0000.00816.83
8.0.240.0040.00416.83
8.0.230.0020.00516.85
8.0.220.0030.00316.75
8.0.210.0000.00616.71
8.0.200.0040.00416.85
8.0.190.0050.00316.89
8.0.180.0070.00216.82
8.0.170.0040.00416.88
8.0.160.0000.00716.80
8.0.150.0000.00716.76
8.0.140.0070.00316.78
8.0.130.0030.00313.21
8.0.120.0050.00316.79
8.0.110.0030.00316.68
8.0.100.0000.00816.86
8.0.90.0000.00716.66
8.0.80.0090.01216.86
8.0.70.0030.00516.62
8.0.60.0070.00016.95
8.0.50.0020.00516.89
8.0.30.0120.00617.10
8.0.20.0110.00717.40
8.0.10.0040.00416.77
8.0.00.0090.00916.91
7.4.330.0050.00015.55
7.4.320.0070.00016.41
7.4.300.0000.00616.50
7.4.290.0070.00016.40
7.4.280.0000.00816.54
7.4.270.0040.00416.59
7.4.260.0000.00716.48
7.4.250.0000.00716.54
7.4.240.0070.00016.64
7.4.230.0070.00016.61
7.4.220.0090.01616.54
7.4.210.0120.00316.46
7.4.200.0070.00016.39
7.4.160.0140.00516.41
7.4.150.0110.00717.40
7.4.140.0120.00817.86
7.4.130.0120.00516.57
7.4.120.0120.00816.46
7.4.110.0100.00916.58
7.4.100.0130.01016.41
7.4.90.0070.01016.55
7.4.80.0080.01219.39
7.4.70.0120.00416.36
7.4.60.0160.00316.51
7.4.50.0090.00616.29
7.4.40.0080.00816.54
7.4.30.0100.01216.38
7.4.00.0030.00714.82
7.3.330.0000.00513.15
7.3.320.0030.00313.20
7.3.310.0000.00716.29
7.3.300.0070.00016.29
7.3.290.0060.00816.28
7.3.280.0100.00516.27
7.3.270.0130.00917.40
7.3.260.0070.01016.37
7.3.250.0070.01116.24
7.3.240.0040.01516.22
7.3.230.0130.00716.36
7.3.210.0060.01016.32
7.3.200.0040.01319.39
7.3.190.0120.00616.33
7.3.180.0090.00716.33
7.3.170.0100.00616.46
7.3.160.0030.01516.31
7.3.10.0060.00616.71
7.3.00.0120.00316.84
7.2.330.0080.00816.57
7.2.320.0130.00616.56
7.2.310.0060.01016.61
7.2.300.0160.00816.53
7.2.290.0100.00616.33
7.2.130.0000.01016.54
7.2.120.0070.00716.63
7.2.110.0030.01016.80
7.2.100.0070.01016.63
7.2.90.0070.01016.55
7.2.80.0110.00016.59
7.2.70.0060.00616.80
7.2.60.0080.00516.73
7.2.50.0090.00716.64
7.2.40.0000.01116.71
7.2.30.0040.01416.99
7.2.20.0000.01116.83
7.2.10.0060.00316.52
7.2.00.0090.00616.85
7.1.250.0030.01015.57
7.1.200.0110.00415.49
7.1.70.0030.00517.16
7.1.60.0100.00017.25
7.1.10.0100.06022.23
7.1.00.0030.06022.38
7.0.200.0000.01216.78
7.0.150.0130.06321.96
7.0.140.0100.05721.84
7.0.130.0070.05721.92
7.0.120.0100.05321.87
7.0.110.0100.05321.84
7.0.100.0130.05321.81
7.0.90.0070.06721.91
7.0.80.0030.06721.94
7.0.70.0030.06021.86
7.0.60.0130.05321.89
7.0.50.0070.07021.72
7.0.40.0130.06721.90
7.0.30.0070.05721.84
7.0.20.0130.09021.78
7.0.10.0130.07721.87
7.0.00.0030.05721.82

preferences:
87.51 ms | 403 KiB | 5 Q