3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = false; echo (bool)isset($x);

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)
8.3.60.0090.00916.48
8.3.50.0040.01118.17
8.3.40.0090.01218.77
8.3.30.0080.00618.42
8.3.20.0040.00419.08
8.3.10.0080.00023.48
8.3.00.0000.00820.63
8.2.180.0130.00725.92
8.2.170.0130.00322.96
8.2.160.0070.00722.34
8.2.150.0070.00324.18
8.2.140.0000.00724.66
8.2.130.0040.00419.82
8.2.120.0000.00926.35
8.2.110.0070.00321.07
8.2.100.0060.00617.91
8.2.90.0000.00917.91
8.2.80.0090.00017.97
8.2.70.0040.00417.93
8.2.60.0040.00418.22
8.2.50.0080.00018.10
8.2.40.0040.00419.51
8.2.30.0000.00819.14
8.2.20.0050.00217.96
8.2.10.0000.00718.18
8.2.00.0050.00317.71
8.1.280.0110.00725.92
8.1.270.0050.00323.99
8.1.260.0040.00426.35
8.1.250.0100.00028.09
8.1.240.0060.00323.91
8.1.230.0030.00720.91
8.1.220.0030.00617.78
8.1.210.0040.00418.95
8.1.200.0060.00617.22
8.1.190.0000.00817.55
8.1.180.0000.00818.10
8.1.170.0040.00418.54
8.1.160.0070.00018.88
8.1.150.0040.00418.90
8.1.140.0080.00021.98
8.1.130.0000.00620.22
8.1.120.0030.00517.39
8.1.110.0080.00017.44
8.1.100.0030.00617.43
8.1.90.0000.00717.34
8.1.80.0040.00417.35
8.1.70.0030.00317.29
8.1.60.0060.00317.46
8.1.50.0040.00417.55
8.1.40.0060.00317.50
8.1.30.0030.00517.64
8.1.20.0000.00717.70
8.1.10.0040.00417.50
8.1.00.0000.00817.29
8.0.300.0040.00419.65
8.0.290.0000.00916.63
8.0.280.0030.00318.46
8.0.270.0030.00317.25
8.0.260.0030.00318.54
8.0.250.0070.00016.92
8.0.240.0050.00316.81
8.0.230.0070.00017.00
8.0.220.0070.00316.82
8.0.210.0000.00716.94
8.0.200.0030.00316.87
8.0.190.0020.00516.82
8.0.180.0050.00316.86
8.0.170.0060.00316.95
8.0.160.0040.00417.00
8.0.150.0000.00816.78
8.0.140.0030.00316.70
8.0.130.0050.00013.29
8.0.120.0040.00416.86
8.0.110.0030.00516.84
8.0.100.0000.00716.86
8.0.90.0030.00316.88
8.0.80.0060.01116.84
8.0.70.0000.00716.73
8.0.60.0040.00416.89
8.0.50.0000.00716.68
8.0.30.0110.00816.98
8.0.20.0150.00317.40
8.0.10.0000.00716.83
8.0.00.0130.00616.72
7.4.330.0050.00015.55
7.4.320.0030.00316.62
7.4.300.0030.00316.63
7.4.290.0070.00016.48
7.4.280.0060.00316.59
7.4.270.0030.00316.59
7.4.260.0030.00316.49
7.4.250.0000.00816.55
7.4.240.0030.00316.62
7.4.230.0030.00316.61
7.4.220.0000.00816.61
7.4.210.0080.00616.66
7.4.200.0000.00816.61
7.4.160.0090.00816.45
7.4.140.0110.00817.86
7.4.130.0120.00616.41
7.4.120.0100.00916.47
7.4.110.0130.00316.43
7.4.100.0080.01416.64
7.4.90.0070.01016.39
7.4.80.0100.00719.39
7.4.70.0040.01816.27
7.4.60.0100.00616.57
7.4.50.0030.01316.40
7.4.40.0060.01016.36
7.3.330.0000.00513.02
7.3.320.0000.00612.99
7.3.310.0040.00416.27
7.3.300.0030.00316.11
7.3.290.0040.00416.16
7.3.280.0090.00516.15
7.3.260.0090.00916.43
7.3.240.0080.01116.29
7.3.230.0070.01016.17
7.3.210.0100.01016.43
7.3.200.0100.00716.21
7.3.190.0090.00616.15
7.3.180.0160.00616.24
7.3.170.0180.00316.32
7.3.160.0040.01116.49
7.2.330.0050.01516.41
7.2.320.0120.01816.38
7.2.310.0070.01016.59
7.2.300.0090.01316.51
7.2.290.0140.00316.48

preferences:
43.16 ms | 401 KiB | 5 Q