3v4l.org

run code in 300+ PHP versions simultaneously
<?php $test = null; $test2 = 'l'; var_dump(isset($test, $test2));

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)
8.3.40.0130.00318.65
8.3.30.0140.00018.73
8.3.20.0080.00018.60
8.3.10.0060.00321.48
8.3.00.0050.00320.89
8.2.170.0110.01122.96
8.2.160.0130.00719.21
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0060.00321.13
8.2.120.0000.00726.35
8.2.110.0030.00619.33
8.2.100.0040.00717.93
8.2.90.0080.00018.95
8.2.80.0050.00317.97
8.2.70.0040.00417.61
8.2.60.0000.00817.80
8.2.50.0080.00018.10
8.2.40.0000.00822.38
8.2.30.0050.00220.68
8.2.20.0000.00817.55
8.2.10.0040.00418.09
8.2.00.0040.00417.99
8.1.270.0030.00523.96
8.1.260.0050.00228.09
8.1.250.0000.00728.09
8.1.240.0060.00319.21
8.1.230.0080.00320.97
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0030.00617.35
8.1.190.0090.00017.22
8.1.180.0040.00418.10
8.1.170.0030.00518.59
8.1.160.0080.00019.01
8.1.150.0000.00718.87
8.1.140.0030.00719.57
8.1.130.0030.00317.68
8.1.120.0050.00217.46
8.1.110.0040.00417.44
8.1.100.0000.00717.49
8.1.90.0080.00017.45
8.1.80.0040.00417.49
8.1.70.0030.00317.39
8.1.60.0040.00417.50
8.1.50.0040.00417.55
8.1.40.0080.00317.40
8.1.30.0040.00417.57
8.1.20.0040.00417.54
8.1.10.0040.00417.20
8.1.00.0000.00717.45
8.0.300.0060.00318.77
8.0.290.0000.00816.59
8.0.280.0030.00318.44
8.0.270.0070.00017.29
8.0.260.0000.00817.28
8.0.250.0030.00616.91
8.0.240.0040.00416.95
8.0.230.0040.00416.96
8.0.220.0000.01016.91
8.0.210.0030.00316.87
8.0.200.0000.00716.95
8.0.190.0000.00716.91
8.0.180.0050.00316.93
8.0.170.0070.00016.89
8.0.160.0060.00316.91
8.0.150.0000.00716.87
8.0.140.0000.00716.76
8.0.130.0000.00613.27
8.0.120.0040.00416.75
8.0.110.0040.00416.78
8.0.100.0000.00816.70
8.0.90.0040.00416.72
8.0.80.0060.01316.81
8.0.70.0030.00616.80
8.0.60.0000.00716.75
8.0.50.0030.00516.77
8.0.30.0140.00416.86
8.0.20.0070.01217.40
8.0.10.0040.00417.00
8.0.00.0100.00816.74
7.4.330.0070.00015.08
7.4.320.0000.00616.61
7.4.300.0000.00716.48
7.4.290.0000.00716.58
7.4.280.0040.00416.61
7.4.270.0070.00016.64
7.4.260.0040.00416.62
7.4.250.0030.00316.42
7.4.240.0040.00416.65
7.4.230.0000.00716.57
7.4.220.0070.01016.54
7.4.210.0070.00716.61
7.4.200.0000.00816.57
7.4.160.0070.01016.43
7.4.150.0110.00717.40
7.4.140.0120.00517.86
7.4.130.0090.00816.38
7.4.120.0060.00916.41
7.4.110.0130.00616.48
7.4.100.0070.01416.41
7.4.90.0000.01716.52
7.4.80.0090.01219.39
7.4.70.0120.00916.41
7.4.60.0140.00316.61
7.4.50.0040.01116.65
7.4.40.0100.00616.41
7.4.30.0130.00316.47
7.4.00.0030.01415.19
7.3.330.0000.00512.87
7.3.320.0050.00012.99
7.3.310.0000.00716.11
7.3.300.0000.00716.13
7.3.290.0070.00916.16
7.3.280.0110.00816.16
7.3.270.0090.01617.40
7.3.260.0130.00616.15
7.3.250.0090.01016.21
7.3.240.0100.00716.29
7.3.230.0070.01016.39
7.3.210.0080.00816.19
7.3.200.0130.00716.48
7.3.190.0050.01116.15
7.3.180.0060.00916.42
7.3.170.0060.00916.36
7.3.160.0030.01516.14
7.3.10.0060.00616.46
7.3.00.0090.00916.48
7.2.330.0120.00616.32
7.2.320.0070.01016.32
7.2.310.0100.00616.54
7.2.300.0000.01616.54
7.2.290.0090.00616.31
7.2.130.0080.00416.59
7.2.120.0090.00616.57
7.2.110.0140.00316.36
7.2.100.0030.00816.59
7.2.90.0030.00616.52
7.2.80.0000.00916.91
7.2.70.0040.00716.59
7.2.60.0060.00916.81
7.2.50.0170.00016.62
7.2.40.0070.00316.72
7.2.30.0100.01016.73
7.2.20.0000.01516.52
7.2.10.0060.00916.25
7.2.00.0040.01018.12
7.1.250.0070.00415.58
7.1.200.0000.01115.75
7.1.100.0110.01117.98
7.1.70.0000.00717.03
7.1.60.0110.01420.41
7.1.00.0070.07322.31
7.0.200.0070.01016.80
7.0.60.0130.03721.66
7.0.50.0200.05320.43
7.0.40.0200.05020.20
7.0.30.0300.04320.36
7.0.20.0130.06320.25
7.0.10.0100.06020.22
7.0.00.0170.05720.32
5.6.280.0100.06721.09
5.6.210.0200.06320.55
5.6.200.0070.06018.19
5.6.190.0030.07020.94
5.6.180.0130.06021.06
5.6.170.0200.05021.10
5.6.160.0130.06321.04
5.6.150.0230.05721.18
5.6.140.0200.05021.05
5.6.130.0030.07021.07
5.6.120.0130.06321.01
5.6.110.0400.04021.11
5.6.100.0200.05321.05
5.6.90.0200.05021.07
5.6.80.0200.06020.48
5.6.70.0170.05320.41
5.6.60.0230.04320.44
5.6.50.0100.05720.45
5.6.40.0170.05020.50
5.6.30.0130.05320.46
5.6.20.0200.04720.39
5.6.10.0100.05320.45
5.6.00.0170.05020.50
5.5.350.3800.04320.32
5.5.340.0070.03717.98
5.5.330.0200.05320.84
5.5.320.0130.06020.88
5.5.310.0200.05021.01
5.5.300.0330.03720.84
5.5.290.0100.06720.87
5.5.280.0100.06320.87
5.5.270.0270.05320.82
5.5.260.0100.06320.82
5.5.250.0200.05020.66
5.5.240.0230.04720.27
5.5.230.0200.05020.21
5.5.220.0170.05020.25
5.5.210.0170.05020.07
5.5.200.0170.05020.23
5.5.190.0070.06020.18
5.5.180.0130.05320.04
5.5.160.0100.05720.22
5.5.150.0300.04020.32
5.5.140.0170.05020.18
5.5.130.0170.05020.24
5.5.120.0100.05720.32
5.5.110.0230.04320.19
5.5.100.0230.04720.11
5.5.90.0030.06020.17
5.5.80.0100.05719.93
5.5.70.0130.05720.09
5.5.60.0130.05319.98
5.5.50.0170.05320.21
5.5.40.0100.05720.27
5.5.30.0000.06720.00
5.5.20.0270.04320.19
5.5.10.0200.04720.05
5.5.00.0130.05720.11

preferences:
46.82 ms | 400 KiB | 5 Q