3v4l.org

run code in 300+ PHP versions simultaneously
<?php $hello = null; $hello ??= 'not_null_anmymore'; echo $hello;

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)
8.3.70.0110.00416.75
8.3.60.0110.01118.43
8.3.50.0140.00718.32
8.3.40.0160.00018.89
8.3.30.0100.00319.26
8.3.20.0070.00024.18
8.3.10.0000.00824.66
8.3.00.0000.00826.16
8.2.190.0060.01316.75
8.2.180.0120.00325.92
8.2.170.0100.01019.00
8.2.160.0030.01322.96
8.2.150.0080.00025.66
8.2.140.0080.00024.66
8.2.130.0050.00326.16
8.2.120.0000.00821.04
8.2.110.0030.00722.15
8.2.100.0070.00417.79
8.2.90.0040.00417.88
8.2.80.0040.00418.04
8.2.70.0090.00317.63
8.2.60.0050.00317.63
8.2.50.0080.00018.05
8.2.40.0070.00020.89
8.2.30.0050.00317.95
8.2.20.0050.00318.00
8.2.10.0000.00819.23
8.2.00.0040.00419.23
8.1.280.0170.00325.92
8.1.270.0030.00523.99
8.1.260.0050.00326.35
8.1.250.0000.00828.09
8.1.240.0110.00822.48
8.1.230.0080.00422.66
8.1.220.0000.00817.74
8.1.210.0080.00018.77
8.1.200.0080.00017.40
8.1.190.0000.00817.00
8.1.180.0080.00018.10
8.1.170.0040.00419.13
8.1.160.0040.00418.77
8.1.150.0000.00718.75
8.1.140.0030.00318.75
8.1.130.0030.00320.05
8.1.120.0030.00317.29
8.1.110.0030.00517.33
8.1.100.0000.00717.33
8.1.90.0000.00717.28
8.1.80.0080.00017.30
8.1.70.0030.00317.38
8.1.60.0040.00417.54
8.1.50.0030.00617.39
8.1.40.0000.00717.43
8.1.30.0080.00017.46
8.1.20.0080.00017.55
8.1.10.0070.00017.52
8.1.00.0090.00017.44
8.0.300.0070.00020.05
8.0.290.0000.00816.63
8.0.280.0070.00018.35
8.0.270.0040.00418.00
8.0.260.0030.00320.13
8.0.250.0060.00316.98
8.0.240.0000.00716.98
8.0.230.0000.00716.76
8.0.220.0000.00716.70
8.0.210.0040.00416.77
8.0.200.0000.00616.80
8.0.190.0070.00016.84
8.0.180.0000.00916.84
8.0.170.0060.00316.71
8.0.160.0050.00216.77
8.0.150.0040.00416.71
8.0.140.0030.00516.75
8.0.130.0000.00513.13
8.0.120.0000.00716.76
8.0.110.0040.00416.93
8.0.100.0000.00816.70
8.0.90.0040.00416.86
8.0.80.0040.01216.76
8.0.70.0000.00716.66
8.0.60.0000.00716.73
8.0.50.0040.00416.71
8.0.30.0070.01017.05
8.0.20.0100.01016.88
8.0.10.0040.00416.90
8.0.00.0090.00916.64
7.4.330.0050.00015.55
7.4.320.0030.00316.32
7.4.300.0070.00016.42
7.4.290.0040.00416.48
7.4.280.0030.00616.32
7.4.270.0000.00816.43
7.4.260.0030.00313.19
7.4.250.0070.00016.46
7.4.240.0020.00516.49
7.4.230.0030.00316.51
7.4.220.0020.00516.37
7.4.210.0050.00816.49
7.4.200.0030.00316.52
7.4.130.0130.00516.36
7.4.120.0140.00616.38
7.4.110.0030.01716.35
7.4.100.0030.01416.57
7.4.90.0060.01016.38
7.4.80.0060.01019.39
7.4.70.0170.00016.41
7.4.60.0120.00616.37
7.4.50.0100.00616.49
7.4.40.0070.01016.45
7.4.30.0080.00816.48
7.4.20.0040.01316.49
7.4.10.0110.00716.37
7.4.00.0060.01216.40
7.3.330.0000.00716.31
7.3.320.0060.00013.00
7.3.310.0070.00016.12
7.3.300.0070.00016.06
7.3.290.0060.01016.18
7.3.280.0100.00716.14
7.3.260.0070.01716.23
7.3.240.0120.00516.27
7.3.230.0050.01116.18
7.3.210.0070.01016.32
7.3.200.0130.00716.34
7.3.190.0070.01116.38
7.3.180.0100.00716.15
7.3.170.0090.00816.23
7.3.160.0050.01216.13
7.3.150.0050.01116.31
7.3.140.0090.00816.32
7.3.130.0090.00816.32
7.3.120.0070.01016.20
7.3.110.0110.00816.25
7.3.100.0140.00516.35
7.3.90.0060.01016.20
7.3.80.0070.01016.06
7.3.70.0140.00416.24
7.3.60.0110.00516.23
7.3.50.0120.00616.16
7.3.40.0100.00616.06
7.3.30.0080.00916.10
7.3.20.0110.00617.04
7.3.10.0180.01216.96
7.3.00.0060.01217.13
7.2.330.0170.00316.21
7.2.320.0090.00916.26
7.2.310.0080.00816.45
7.2.300.0100.00716.16
7.2.290.0110.00816.25
7.2.280.0070.01016.27
7.2.270.0070.01016.38
7.2.260.0090.01116.37
7.2.250.0070.01016.40
7.2.240.0100.00716.26
7.2.230.0110.00816.37
7.2.220.0090.01116.46
7.2.210.0070.01216.41
7.2.200.0070.01016.28
7.2.190.0090.00916.08
7.2.180.0110.00516.09
7.2.170.0090.00916.02
7.2.160.0040.01316.21
7.2.150.0090.01117.16
7.2.140.0100.00917.21
7.2.130.0100.01017.29
7.2.120.0110.00617.13
7.2.110.0040.01217.12
7.2.100.0100.00717.06
7.2.90.0130.00517.24
7.2.80.0080.01017.18
7.2.70.0110.01117.18
7.2.60.0080.01217.08
7.2.50.0120.00717.06
7.2.40.0090.01117.04
7.2.30.0090.00917.20
7.2.20.0080.01117.25
7.2.10.0060.01117.09
7.2.00.0160.00617.30

preferences:
20.88 ms | 401 KiB | 5 Q