3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = true; echo (bool)isset($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)
8.3.60.0060.01116.63
8.3.50.0070.01018.07
8.3.40.0040.01118.50
8.3.30.0040.01118.44
8.3.20.0030.00619.09
8.3.10.0000.00723.66
8.3.00.0050.00220.63
8.2.180.0080.00818.16
8.2.170.0060.00622.96
8.2.160.0100.00322.21
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0040.00419.82
8.2.120.0040.00426.35
8.2.110.0030.00620.55
8.2.100.0070.00417.91
8.2.90.0000.00817.71
8.2.80.0040.00417.97
8.2.70.0080.00017.80
8.2.60.0070.00018.22
8.2.50.0000.00818.10
8.2.40.0040.00419.33
8.2.30.0020.00519.18
8.2.20.0040.00418.05
8.2.10.0040.00417.97
8.2.00.0060.00317.70
8.1.280.0160.00425.92
8.1.270.0040.00423.99
8.1.260.0030.00526.35
8.1.250.0060.00328.09
8.1.240.0080.00023.96
8.1.230.0000.01120.71
8.1.220.0060.00317.79
8.1.210.0040.00418.77
8.1.200.0070.00417.23
8.1.190.0040.00417.13
8.1.180.0050.00518.10
8.1.170.0000.00818.48
8.1.160.0040.00418.88
8.1.150.0040.00418.81
8.1.140.0040.00422.07
8.1.130.0000.00720.31
8.1.120.0070.00017.41
8.1.110.0080.00017.41
8.1.100.0070.00017.36
8.1.90.0040.00417.41
8.1.80.0040.00417.37
8.1.70.0030.00317.35
8.1.60.0070.00317.46
8.1.50.0040.00417.43
8.1.40.0090.00017.49
8.1.30.0030.00617.57
8.1.20.0000.00717.64
8.1.10.0000.00717.52
8.1.00.0040.00417.44
8.0.300.0030.00718.77
8.0.290.0080.00016.75
8.0.280.0070.00018.43
8.0.270.0000.00717.24
8.0.260.0030.00318.31
8.0.250.0030.00316.98
8.0.240.0050.00317.00
8.0.230.0070.00016.90
8.0.220.0000.01016.72
8.0.210.0070.00016.88
8.0.200.0030.00316.94
8.0.190.0070.00016.90
8.0.180.0050.00316.79
8.0.170.0000.00816.95
8.0.160.0070.00016.94
8.0.150.0000.00716.73
8.0.140.0000.00716.82
8.0.130.0030.00313.36
8.0.120.0000.00816.75
8.0.110.0000.00816.89
8.0.100.0040.00416.80
8.0.90.0030.00316.90
8.0.80.0070.00916.78
8.0.70.0040.00416.86
8.0.60.0050.00216.70
8.0.50.0000.00716.98
8.0.30.0190.01017.13
8.0.20.0160.00317.40
8.0.10.0040.00416.98
8.0.00.0040.01416.70
7.4.330.0020.00215.55
7.4.320.0040.00416.50
7.4.300.0000.00716.63
7.4.290.0000.00716.50
7.4.280.0050.00316.40
7.4.270.0000.00716.59
7.4.260.0000.00716.56
7.4.250.0040.00416.35
7.4.240.0000.00716.57
7.4.230.0000.00716.38
7.4.220.0000.00716.56
7.4.210.0120.00716.50
7.4.200.0030.00316.29
7.4.160.0120.00716.48
7.4.140.0140.00617.86
7.4.130.0100.01016.49
7.4.120.0100.00916.44
7.4.110.0050.01116.48
7.4.100.0120.01016.48
7.4.90.0100.00616.53
7.4.80.0100.00719.39
7.4.70.0110.01416.51
7.4.60.0030.01216.41
7.4.50.0030.01216.36
7.4.40.0080.00916.60
7.3.330.0050.00013.08
7.3.320.0000.00613.10
7.3.310.0060.00316.18
7.3.300.0030.00316.21
7.3.290.0070.00016.08
7.3.280.0070.00716.23
7.3.260.0090.00916.42
7.3.240.0060.01116.36
7.3.230.0090.01216.40
7.3.210.0120.00516.43
7.3.200.0030.01316.49
7.3.190.0070.01416.39
7.3.180.0030.02016.17
7.3.170.0150.00716.46
7.3.160.0090.00916.09
7.2.330.0090.00916.52
7.2.320.0050.01116.30
7.2.310.0100.00616.38
7.2.300.0160.00616.48
7.2.290.0130.00916.43

preferences:
36.6 ms | 401 KiB | 5 Q