3v4l.org

run code in 300+ PHP versions simultaneously
<?php $b = 2; $d = 4; echo $a ?? $b ?? $c ?? $d;

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)
8.3.60.0100.01016.38
8.3.50.0040.01118.20
8.3.40.0070.00718.63
8.3.30.0070.00718.52
8.3.20.0070.00720.33
8.3.10.0040.00423.61
8.3.00.0050.00319.74
8.2.180.0190.00316.63
8.2.170.0110.00422.96
8.2.160.0030.01020.35
8.2.150.0030.00524.18
8.2.140.0030.00624.66
8.2.130.0030.00519.38
8.2.120.0040.00426.35
8.2.110.0070.01320.44
8.2.100.0110.00017.93
8.2.90.0000.00719.21
8.2.80.0080.00017.97
8.2.70.0000.00917.50
8.2.60.0000.00717.80
8.2.50.0060.00318.07
8.2.40.0050.00322.28
8.2.30.0040.00420.69
8.2.20.0020.00517.66
8.2.10.0040.00418.01
8.2.00.0000.00718.00
8.1.280.0130.00725.92
8.1.270.0080.00020.38
8.1.260.0070.00028.09
8.1.250.0070.00328.09
8.1.240.0090.00022.13
8.1.230.0030.00917.76
8.1.220.0080.00017.74
8.1.210.0000.00918.77
8.1.200.0040.00417.22
8.1.190.0060.00317.11
8.1.180.0060.00318.10
8.1.170.0030.00618.52
8.1.160.0000.00720.76
8.1.150.0040.00418.75
8.1.140.0050.00319.57
8.1.130.0000.00817.62
8.1.120.0030.00317.42
8.1.110.0000.00717.34
8.1.100.0080.00017.33
8.1.90.0040.00417.37
8.1.80.0000.00717.37
8.1.70.0000.00717.34
8.1.60.0040.00417.48
8.1.50.0030.00617.38
8.1.40.0050.00517.38
8.1.30.0040.00417.57
8.1.20.0030.00617.54
8.1.10.0040.00417.48
8.1.00.0000.00717.37
8.0.300.0050.00318.77
8.0.290.0040.00416.75
8.0.280.0030.00318.45
8.0.270.0000.00717.27
8.0.260.0000.00617.21
8.0.250.0030.00316.95
8.0.240.0080.00016.99
8.0.230.0030.00516.91
8.0.220.0000.00716.77
8.0.210.0000.00716.82
8.0.200.0000.00616.89
8.0.190.0040.00416.88
8.0.180.0040.00416.77
8.0.170.0000.00816.75
8.0.160.0030.00316.84
8.0.150.0040.00416.68
8.0.140.0070.00316.69
8.0.130.0060.00013.29
8.0.120.0050.00216.80
8.0.110.0080.00016.85
8.0.100.0000.00716.68
8.0.90.0020.00516.87
8.0.80.0060.01016.71
8.0.70.0040.00416.76
8.0.60.0040.00416.73
8.0.50.0030.00516.69
8.0.30.0010.01417.09
8.0.20.0120.00717.40
8.0.10.0000.00716.87
8.0.00.0080.01016.82
7.4.330.0000.00416.70
7.4.320.0000.00616.44
7.4.300.0040.00416.58
7.4.290.0030.00316.52
7.4.280.0000.00816.44
7.4.270.0000.00616.48
7.4.260.0030.00516.47
7.4.250.0000.00816.39
7.4.240.0000.00716.42
7.4.230.0000.00716.25
7.4.220.0090.01016.55
7.4.210.0090.00616.50
7.4.200.0030.00316.64
7.4.160.0100.01016.43
7.4.150.0140.00417.40
7.4.140.0130.00417.86
7.4.130.0090.01116.43
7.4.120.0070.01016.32
7.4.110.0140.00716.26
7.4.100.0070.01116.55
7.4.90.0080.00816.36
7.4.80.0150.00419.39
7.4.70.0030.01416.29
7.4.60.0030.01316.44
7.4.50.0070.01016.43
7.4.40.0070.01116.37
7.4.30.0040.01416.57
7.4.00.0030.01214.67
7.3.330.0050.00013.09
7.3.320.0030.00213.04
7.3.310.0000.00716.14
7.3.300.0040.00416.22
7.3.290.0060.00816.16
7.3.280.0080.00916.20
7.3.270.0090.00917.40
7.3.260.0060.01216.42
7.3.250.0120.00816.23
7.3.240.0090.00816.29
7.3.230.0060.01516.39
7.3.210.0000.01716.31
7.3.200.0120.00316.36
7.3.190.0030.01316.13
7.3.180.0070.01316.14
7.3.170.0110.00716.27
7.3.160.0080.00816.21
7.3.120.0100.00614.66
7.3.110.0080.01014.48
7.3.100.0040.01414.44
7.3.90.0080.01014.78
7.3.80.0030.00914.61
7.3.70.0070.00714.68
7.3.60.0090.00214.51
7.3.50.0080.00414.64
7.3.40.0070.00814.60
7.3.30.0060.00614.54
7.3.20.0070.00916.55
7.3.10.0060.00916.36
7.3.00.0030.01016.27
7.2.330.0060.01316.32
7.2.320.0140.01016.66
7.2.310.0160.00016.56
7.2.300.0070.01016.37
7.2.290.0090.00916.64
7.2.240.0100.00814.63
7.2.230.0080.00814.79
7.2.220.0110.00914.87
7.2.210.0050.01114.76
7.2.200.0030.01314.54
7.2.190.0050.00914.75
7.2.180.0040.00714.63
7.2.170.0050.01014.76
7.2.160.0030.00914.58
7.2.150.0130.00516.60
7.2.140.0060.00816.77
7.2.130.0120.00516.73
7.2.120.0100.00816.60
7.2.110.0090.00616.58
7.2.100.0080.00816.76
7.2.90.0060.00916.45
7.2.80.0080.00816.55
7.2.70.0090.00416.76
7.2.60.0030.01116.78
7.2.50.0040.01216.73
7.2.40.0050.00916.72
7.2.30.0030.01116.62
7.2.20.0050.00716.65
7.2.10.0070.00516.59
7.2.00.0050.01117.51
7.1.330.0080.00515.61
7.1.320.0100.00815.64
7.1.310.0100.00515.51
7.1.300.0020.01115.47
7.1.290.0080.00815.59
7.1.280.0080.00815.55
7.1.270.0050.00715.45
7.1.260.0090.00615.41
7.1.250.0080.00515.66
7.1.200.0060.00015.70
7.1.100.0030.01017.85
7.1.70.0060.00316.89
7.1.60.0130.01019.44
7.1.50.0160.00616.49
7.1.00.0030.07722.30
7.0.200.0080.00316.51
7.0.60.0300.06721.84
7.0.50.0000.04317.70
7.0.40.0030.08320.39
7.0.30.0230.06720.13
7.0.20.0270.07320.34
7.0.10.0030.04320.09
7.0.00.0070.05720.21
5.6.280.0000.03320.82
5.6.210.0130.08020.47
5.6.200.0000.04318.23
5.6.190.0000.09320.55
5.6.180.0200.04320.58
5.6.170.0130.05020.52
5.6.160.0030.07020.54
5.6.150.0170.06718.12
5.6.140.0100.03718.28
5.6.130.0030.06718.23
5.6.120.0100.03720.89
5.6.110.0070.05720.89
5.6.100.0030.07021.08
5.6.90.0070.05721.12
5.6.80.0100.07720.38
5.5.350.0270.07020.37
5.5.340.0000.08017.99
5.5.330.0000.04720.42
5.5.320.0400.05720.35
5.5.310.0230.08020.34
5.5.300.0100.06317.98
5.5.290.0130.07718.01
5.5.280.0030.06020.65
5.5.270.0170.07320.71
5.5.260.0030.06320.84
5.5.250.0030.04320.76
5.5.240.0230.07720.25

preferences:
57.61 ms | 400 KiB | 5 Q