3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = null; $c = ''; print $a ?? 'b'; print "\n"; print $a ?: 'b'; print "\n"; print $c ?? 'a'; print "\n"; print $c ?: 'a'; print "\n"; $b = array('a' => null); print $b['a'] ?? 'd'; print "\n"; print $b['a'] ?: 'd'; print "\n"; print $b['c'] ?? 'e'; print "\n"; print $b['c'] ?: 'e'; print "\n";

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)
8.3.60.0070.01418.56
8.3.50.0200.00017.99
8.3.40.0110.00418.96
8.3.30.0100.00718.67
8.3.20.0000.00719.16
8.3.10.0040.00421.90
8.3.00.0040.00420.90
8.2.180.0140.00017.00
8.2.170.0140.00022.96
8.2.160.0030.01020.37
8.2.150.0080.00024.18
8.2.140.0030.00524.66
8.2.130.0070.00019.85
8.2.120.0040.00426.35
8.2.110.0050.00521.04
8.2.100.0070.00417.91
8.2.90.0040.00417.97
8.2.80.0040.00419.32
8.2.70.0040.00417.75
8.2.60.0040.00418.05
8.2.50.0030.00618.10
8.2.40.0080.00022.38
8.2.30.0040.00419.34
8.2.20.0000.00717.75
8.2.10.0040.00418.16
8.2.00.0030.00318.06
8.1.280.0070.00725.92
8.1.270.0040.00423.91
8.1.260.0040.00428.09
8.1.250.0070.00028.09
8.1.240.0070.00323.68
8.1.230.0070.00421.04
8.1.220.0000.00817.74
8.1.210.0050.00318.77
8.1.200.0000.00817.35
8.1.190.0000.00817.35
8.1.180.0080.00018.10
8.1.170.0040.00418.61
8.1.160.0090.00019.05
8.1.150.0040.00418.92
8.1.140.0040.00419.51
8.1.130.0040.00417.79
8.1.120.0000.00717.39
8.1.110.0000.00817.41
8.1.100.0040.00417.53
8.1.90.0000.00717.55
8.1.80.0050.00317.52
8.1.70.0000.00717.43
8.1.60.0050.00317.55
8.1.50.0000.00817.55
8.1.40.0040.00417.53
8.1.30.0040.00417.57
8.1.20.0080.00017.74
8.1.10.0040.00417.61
8.1.00.0000.01117.43
8.0.300.0040.00419.88
8.0.290.0040.00416.88
8.0.280.0070.00018.53
8.0.270.0070.00017.30
8.0.260.0000.00817.36
8.0.250.0030.00317.02
8.0.240.0030.00517.03
8.0.230.0040.00417.03
8.0.220.0070.00016.98
8.0.210.0000.00716.94
8.0.200.0000.00916.95
8.0.190.0040.00416.96
8.0.180.0040.00416.95
8.0.170.0080.00016.97
8.0.160.0030.00516.98
8.0.150.0030.00616.93
8.0.140.0000.00816.90
8.0.130.0050.00313.37
8.0.120.0040.00416.96
8.0.110.0070.00017.02
8.0.100.0000.00816.85
8.0.90.0000.00717.03
8.0.80.0070.00716.91
8.0.70.0000.00816.85
8.0.60.0040.00416.95
8.0.50.0040.00416.87
8.0.30.0030.01417.35
8.0.20.0090.01017.40
8.0.10.0050.00216.96
8.0.00.0130.00316.73
7.4.330.0000.00515.08
7.4.320.0030.00316.64
7.4.300.0000.00616.54
7.4.290.0000.00716.52
7.4.280.0000.00716.66
7.4.270.0030.00316.64
7.4.260.0000.00916.57
7.4.250.0000.00716.61
7.4.240.0030.00516.61
7.4.230.0000.00716.72
7.4.220.0110.00816.57
7.4.210.0130.00316.59
7.4.200.0030.00316.52
7.4.150.0150.00317.40
7.4.140.0160.01217.86
7.4.130.0130.00716.54
7.4.120.0060.01016.47
7.4.110.0040.01616.59
7.4.100.0110.00716.45
7.4.90.0060.01116.70
7.4.80.0060.01719.39
7.4.70.0100.00716.65
7.4.60.0090.00916.47
7.4.50.0120.00616.31
7.4.40.0160.00016.46
7.4.30.0170.00016.58
7.4.00.0060.00915.08
7.3.330.0000.00513.28
7.3.320.0030.00413.19
7.3.310.0070.00016.40
7.3.300.0070.00016.45
7.3.290.0080.00716.46
7.3.280.0130.00416.38
7.3.270.0110.00717.40
7.3.260.0130.00516.47
7.3.250.0100.00716.33
7.3.240.0110.00616.57
7.3.230.0080.00916.39
7.3.210.0090.00616.27
7.3.200.0130.00316.38
7.3.190.0110.00616.33
7.3.180.0120.00616.66
7.3.170.0060.01016.42
7.3.160.0060.01716.57
7.2.330.0150.00616.68
7.2.320.0100.01616.59
7.2.310.0040.02016.41
7.2.300.0040.01616.76
7.2.290.0060.01016.68
7.2.60.0100.00316.92
7.1.200.0060.00615.81
7.1.100.0000.01217.91
7.1.70.0050.00317.15
7.1.60.0060.01019.47
7.1.50.0060.00916.55
7.1.00.0070.07322.54
7.0.200.0070.00414.79
7.0.60.0130.06019.96
7.0.50.1230.05320.28
7.0.40.1270.05020.30
7.0.30.0800.07720.32
7.0.20.1300.06720.25
7.0.10.1530.06320.28
7.0.00.1500.07720.33
5.6.280.0030.07320.86
5.6.210.0270.06320.60
5.6.200.0900.07021.14
5.6.190.1130.07021.03
5.6.180.1400.06721.20
5.6.170.0200.07021.06
5.6.160.1130.04721.17
5.6.150.0970.06321.06
5.6.140.1170.05321.12
5.6.130.1230.06721.06
5.6.120.0070.08721.14
5.6.110.1100.05721.04
5.6.100.1000.05721.18
5.6.90.1230.06021.02
5.6.80.1200.05720.41
5.6.70.1270.06020.50
5.6.60.1200.05320.38
5.6.50.1230.05320.41
5.6.40.1200.05020.41
5.6.30.1030.06020.31
5.6.20.0900.06720.55
5.6.10.1000.06320.43
5.6.00.1000.05320.39
5.5.350.0670.05720.52
5.5.340.1300.05020.87
5.5.330.1500.05321.00
5.5.320.1270.06020.75
5.5.310.0300.06020.78
5.5.300.1430.07720.80
5.5.290.1170.06320.86
5.5.280.0100.06720.95
5.5.270.1100.06020.98
5.5.260.1430.06321.02
5.5.250.1200.06020.74
5.5.240.1300.08020.12
5.5.230.0930.06320.20
5.5.220.1000.06020.24
5.5.210.1030.06720.24
5.5.200.1600.06020.12
5.5.190.1100.07020.38
5.5.180.1070.08020.33
5.5.160.0930.06320.13
5.5.150.1100.05320.22
5.5.140.1070.06320.21
5.5.130.0970.05020.30
5.5.120.1100.05020.21
5.5.110.1000.06020.20
5.5.100.1000.05320.13
5.5.90.1030.07020.15
5.5.80.1070.06020.06
5.5.70.1070.05720.12
5.5.60.0870.06320.07
5.5.50.1170.04720.03
5.5.40.1330.04720.15
5.5.30.0830.06019.98
5.5.20.0970.05319.98
5.5.10.1170.05020.07
5.5.00.1270.06020.06

preferences:
57.86 ms | 401 KiB | 5 Q