3v4l.org

run code in 300+ PHP versions simultaneously
<?php $null1 = null; var_dump(--$null1); $null2 = null; var_dump($null2 - 1);

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)
8.3.70.0070.00716.58
8.3.60.0090.00616.75
8.3.50.0040.01418.14
8.3.40.0110.00820.61
8.3.30.0100.00718.63
8.3.20.0040.00424.18
8.3.10.0040.00424.66
8.3.00.0040.00426.16
8.2.190.0140.00016.58
8.2.180.0040.01125.92
8.2.170.0140.00018.82
8.2.160.0100.00322.96
8.2.150.0070.00025.66
8.2.140.0050.00224.66
8.2.130.0040.00426.16
8.2.120.0040.00418.95
8.2.110.0090.00019.29
8.2.100.0040.00817.91
8.2.90.0040.00418.22
8.2.80.0030.00717.97
8.2.70.0000.00817.63
8.2.60.0030.00517.63
8.2.50.0090.00017.55
8.2.40.0040.00419.23
8.2.30.0070.00017.66
8.2.20.0000.00718.08
8.2.10.0040.00420.88
8.2.00.0040.00419.17
8.1.280.0090.00625.92
8.1.270.0050.00322.19
8.1.260.0080.00026.35
8.1.250.0080.00028.09
8.1.240.0100.00019.01
8.1.230.0120.00022.63
8.1.220.0040.00417.74
8.1.210.0050.00318.77
8.1.200.0040.00417.23
8.1.190.0030.00617.11
8.1.180.0050.00318.10
8.1.170.0000.00917.62
8.1.160.0000.00718.73
8.1.150.0050.00218.48
8.1.140.0040.00418.77
8.1.130.0040.00418.82
8.1.120.0030.00317.39
8.1.110.0000.00717.25
8.1.100.0000.00717.43
8.1.90.0030.00317.27
8.1.80.0030.00617.37
8.1.70.0000.00717.27
8.1.60.0030.00517.52
8.1.50.0030.00617.42
8.1.40.0100.00317.40
8.1.30.0030.00517.44
8.1.20.0060.00317.57
8.1.10.0030.00517.40
8.1.00.0080.00017.36
8.0.300.0000.00719.90
8.0.290.0040.00416.75
8.0.280.0000.00717.99
8.0.270.0040.00416.76
8.0.260.0000.00618.47
8.0.250.0050.00316.86
8.0.240.0050.00216.80
8.0.230.0000.00716.94
8.0.220.0070.00016.77
8.0.210.0050.00316.82
8.0.200.0060.00016.93
8.0.190.0000.00716.90
8.0.180.0000.00916.88
8.0.170.0030.00616.82
8.0.160.0070.00016.82
8.0.150.0030.00416.70
8.0.140.0000.00716.75
8.0.130.0000.00713.28
8.0.120.0080.00016.89
8.0.110.0000.00716.79
8.0.100.0050.00316.71
8.0.90.0040.00416.82
8.0.80.0030.00616.85
8.0.70.0030.00616.91
8.0.60.0000.00816.94
8.0.50.0070.00016.95
8.0.30.0030.00516.78
8.0.20.0030.00616.82
8.0.10.0000.00916.90
8.0.00.0000.00817.01
7.4.330.0020.00215.55
7.4.320.0030.00316.50
7.4.300.0030.00316.49
7.4.290.0030.00316.52
7.4.280.0050.00216.38
7.4.270.0030.00616.48
7.4.260.0030.00313.10
7.4.250.0040.00316.43
7.4.240.0030.00316.50
7.4.230.0070.00016.63
7.4.220.0050.00316.62
7.4.210.0040.00416.50
7.4.200.0040.00416.21
7.4.190.0040.00416.28
7.4.180.0080.00016.57
7.4.160.0040.00416.69
7.4.150.0030.00316.27
7.4.140.0070.00016.27
7.4.130.0040.00416.33
7.4.120.0050.00216.11
7.4.110.0000.00716.19
7.4.100.0040.00416.35
7.4.90.0040.00416.49
7.4.80.0000.00716.41
7.4.70.0030.00516.11
7.4.60.0000.00716.50
7.4.50.0040.00416.16
7.4.40.0070.00016.24
7.4.30.0030.00316.27
7.4.20.0040.00416.11
7.4.10.0040.00416.43
7.4.00.0000.00816.47
7.3.330.0040.00416.33
7.3.320.0030.00313.09
7.3.310.0070.00016.26
7.3.300.0080.00016.29
7.3.290.0050.00316.12
7.3.280.0000.00716.28
7.3.270.0000.00816.28
7.3.260.0060.00316.23
7.3.250.0050.00216.25
7.3.240.0030.00316.29
7.3.230.0070.00016.24
7.3.220.0050.00216.04
7.3.210.0040.00416.23
7.3.200.0050.00316.03
7.3.190.0000.00816.18
7.3.180.0000.00816.29
7.3.170.0050.00215.97
7.3.160.0000.00816.18
7.3.150.0040.00416.21
7.3.140.0060.00016.21
7.3.130.0040.00416.05
7.3.120.0030.00316.03
7.3.110.0000.00716.04
7.3.100.0020.00516.04
7.3.90.0030.00316.30
7.3.80.0080.00016.21
7.3.70.0030.00516.35
7.3.60.0040.00416.35
7.3.50.0040.00416.37
7.3.40.0000.00816.38
7.3.30.0000.00716.34
7.3.20.0080.00016.42
7.3.10.0050.00316.31
7.3.00.0000.00716.21

preferences:
30.4 ms | 401 KiB | 5 Q