3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 12; $b = ''; $c = $x ?? $b ?? $a; echo $c;

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)
8.3.70.0040.01116.50
8.3.60.0090.00916.50
8.3.50.0100.00821.86
8.3.40.0140.00018.57
8.3.30.0120.00318.72
8.3.20.0040.00420.34
8.3.10.0050.00323.56
8.3.00.0040.00419.38
8.2.190.0120.00316.58
8.2.180.0150.00016.61
8.2.170.0090.00922.96
8.2.160.0100.00720.43
8.2.150.0000.00824.18
8.2.140.0000.00724.66
8.2.130.0040.00417.63
8.2.120.0050.00326.35
8.2.110.0030.00622.15
8.2.100.0070.00419.35
8.2.90.0040.00419.04
8.2.80.0000.00917.97
8.2.70.0080.00017.63
8.2.60.0000.00918.04
8.2.50.0040.00418.07
8.2.40.0040.00419.34
8.2.30.0030.00520.69
8.2.20.0000.00917.73
8.2.10.0050.00318.20
8.2.00.0000.00818.00
8.1.280.0160.00625.92
8.1.270.0090.00023.84
8.1.260.0040.00428.09
8.1.250.0080.00028.09
8.1.240.0080.00023.91
8.1.230.0060.00619.07
8.1.220.0080.00017.74
8.1.210.0040.00418.77
8.1.200.0000.00917.25
8.1.190.0040.00417.35
8.1.180.0000.00818.10
8.1.170.0030.00618.84
8.1.160.0000.00721.95
8.1.150.0070.00018.75
8.1.140.0040.00419.45
8.1.130.0030.00317.55
8.1.120.0000.00717.29
8.1.110.0070.00017.36
8.1.100.0080.00017.44
8.1.90.0050.00317.34
8.1.80.0040.00417.29
8.1.70.0040.00417.38
8.1.60.0040.00417.52
8.1.50.0030.00617.34
8.1.40.0040.00417.35
8.1.30.0000.00817.48
8.1.20.0000.00717.49
8.1.10.0040.00417.50
8.1.00.0040.00417.45
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0000.00718.36
8.0.270.0030.00317.16
8.0.260.0030.00317.25
8.0.250.0000.00616.89
8.0.240.0060.00016.85
8.0.230.0000.00716.83
8.0.220.0030.00316.71
8.0.210.0000.00816.79
8.0.200.0060.00016.84
8.0.190.0030.00316.80
8.0.180.0050.00316.87
8.0.170.0040.00416.87
8.0.160.0000.00716.89
8.0.150.0080.00016.83
8.0.140.0070.00016.75
8.0.130.0000.00713.22
8.0.120.0000.00916.68
8.0.110.0050.00216.73
8.0.100.0070.00016.71
8.0.90.0000.00816.82
8.0.80.0060.01016.87
8.0.70.0000.00716.63
8.0.60.0000.00716.83
8.0.50.0040.00416.73
8.0.30.0090.00917.09
8.0.20.0090.00817.40
8.0.10.0050.00316.91
8.0.00.0080.01016.72
7.4.330.0030.00315.08
7.4.320.0070.00016.46
7.4.300.0070.00016.58
7.4.290.0000.00716.53
7.4.280.0070.00016.44
7.4.270.0030.00316.43
7.4.260.0070.00016.42
7.4.250.0040.00416.39
7.4.240.0020.00516.57
7.4.230.0000.00716.51
7.4.220.0140.01016.29
7.4.210.0060.00916.41
7.4.200.0030.00316.34
7.4.160.0150.00016.42
7.4.150.0070.01117.40
7.4.140.0080.01117.86
7.4.130.0120.00516.52
7.4.120.0090.00916.47
7.4.110.0120.00616.50
7.4.100.0070.01016.63
7.4.90.0120.00616.45
7.4.80.0140.00319.39
7.4.70.0120.00916.74
7.4.60.0040.01216.36
7.4.50.0050.00516.29
7.4.40.0120.00616.34
7.4.30.0090.00916.44
7.4.00.0030.01214.69
7.3.330.0050.00013.00
7.3.320.0030.00313.04
7.3.310.0000.00716.13
7.3.300.0030.00316.11
7.3.290.0080.00716.26
7.3.280.0090.00616.19
7.3.270.0090.00917.40
7.3.260.0140.00316.30
7.3.250.0120.00516.42
7.3.240.0100.00616.30
7.3.230.0100.00616.39
7.3.210.0100.00616.25
7.3.200.0060.01216.29
7.3.190.0110.01116.51
7.3.180.0090.00816.30
7.3.170.0090.00616.35
7.3.160.0030.01316.26
7.3.120.0140.00314.64
7.3.110.0040.01415.02
7.3.100.0070.00714.88
7.3.90.0030.01514.54
7.3.80.0100.00314.75
7.3.70.0040.01114.92
7.3.60.0000.01214.54
7.3.50.0060.00914.59
7.3.40.0000.00914.49
7.3.30.0070.01014.86
7.3.20.0030.01416.44
7.3.10.0040.01116.60
7.3.00.0070.00716.74
7.2.330.0030.01416.31
7.2.320.0080.01416.59
7.2.310.0120.00516.65
7.2.300.0100.00716.57
7.2.290.0140.00616.65
7.2.250.0060.01214.98
7.2.240.0120.00914.77
7.2.230.0100.01015.16
7.2.220.0040.00714.86
7.2.210.0070.00714.69
7.2.200.0030.01314.99
7.2.190.0030.01314.67
7.2.180.0090.00014.96
7.2.170.0030.01014.64
7.2.60.0070.01016.78
7.2.00.0000.01619.49
7.1.330.0070.00715.83
7.1.320.0000.01215.42
7.1.310.0000.00915.61
7.1.300.0070.00715.42
7.1.290.0090.00015.64
7.1.280.0030.01015.78
7.1.270.0040.01115.39
7.1.260.0040.00815.77
7.1.200.0000.00815.64
7.1.100.0070.01018.29
7.1.70.0170.00317.13
7.1.60.0090.01519.36
7.1.50.0100.01016.98
7.1.00.0000.07022.32
7.0.200.0000.00916.64
7.0.60.0100.07019.77
7.0.50.0130.06717.84
7.0.40.0030.09320.24
7.0.30.0400.07720.33
7.0.20.0300.04720.12
7.0.10.0130.03720.20
7.0.00.0100.08020.00
5.6.280.0100.02720.96
5.6.210.0070.09020.66
5.6.200.0070.03718.21
5.6.190.0070.08320.39
5.6.180.0300.04020.77
5.6.170.0500.06320.50
5.6.160.0100.08320.46
5.6.150.0000.05318.23
5.6.140.0170.06318.28
5.6.130.0100.07718.18
5.6.120.0030.04320.96
5.6.110.0030.04321.13
5.6.100.0030.08720.98
5.6.90.0030.04021.09
5.6.80.0070.07720.40
5.5.350.4300.04320.37
5.5.340.0070.08318.02
5.5.330.0070.08320.41
5.5.320.0030.06720.24
5.5.310.0170.04720.51
5.5.300.0000.08717.98
5.5.290.0070.06317.92
5.5.280.0170.07320.77
5.5.270.0130.08720.79
5.5.260.0230.05020.79
5.5.250.0070.08020.54
5.5.240.0300.03020.15

preferences:
67.27 ms | 401 KiB | 5 Q