3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = null; print $a ?? 'b'; print "\n"; print $a ?: 'b'; print "\n"; print $c ?? 'a'; print "\n"; print $c ?: 'a2'; 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'] ?: 'e7'; 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)
8.3.60.0090.01316.63
8.3.50.0070.00716.63
8.3.40.0060.01018.78
8.3.30.0110.00418.78
8.3.20.0050.00220.21
8.3.10.0030.00521.96
8.3.00.0050.00317.84
8.2.180.0090.01216.88
8.2.170.0180.00022.96
8.2.160.0080.01220.38
8.2.150.0040.00425.66
8.2.140.0090.00024.66
8.2.130.0070.01121.97
8.2.120.0030.00526.35
8.2.110.0060.00320.38
8.2.100.0070.01018.03
8.2.90.0000.00919.25
8.2.80.0000.00818.03
8.2.70.0030.01017.75
8.2.60.0040.00418.04
8.2.50.0050.00518.10
8.2.40.0000.00822.23
8.2.30.0030.00521.10
8.2.20.0070.00018.01
8.2.10.0030.00317.98
8.2.00.0070.00018.01
8.1.280.0070.01125.92
8.1.270.0050.00322.05
8.1.260.0060.00326.35
8.1.250.0050.00228.09
8.1.240.0040.00423.84
8.1.230.0070.00317.70
8.1.220.0030.00617.74
8.1.210.0030.00618.77
8.1.200.0060.00317.36
8.1.190.0040.00417.23
8.1.180.0000.00718.10
8.1.170.0060.00318.56
8.1.160.0040.00419.04
8.1.150.0050.00320.61
8.1.140.0000.00819.64
8.1.130.0000.00718.91
8.1.120.0000.00717.48
8.1.110.0000.00817.43
8.1.100.0000.00717.39
8.1.90.0040.00417.38
8.1.80.0050.00317.48
8.1.70.0030.00317.52
8.1.60.0090.00017.61
8.1.50.0000.00717.55
8.1.40.0050.00217.54
8.1.30.0000.00717.73
8.1.20.0050.00317.65
8.1.10.0040.00417.51
8.1.00.0040.00417.36
8.0.300.0050.00218.77
8.0.290.0000.00716.88
8.0.280.0000.00718.49
8.0.270.0000.00817.20
8.0.260.0070.00016.91
8.0.250.0030.00316.96
8.0.240.0040.00417.04
8.0.230.0000.01116.93
8.0.220.0000.00716.86
8.0.210.0040.00416.95
8.0.200.0030.00317.05
8.0.190.0040.00417.05
8.0.180.0030.00517.03
8.0.170.0000.00717.04
8.0.160.0000.00816.91
8.0.150.0040.00416.93
8.0.140.0000.00716.94
8.0.130.0000.00613.37
8.0.120.0070.00016.97
8.0.110.0000.00716.79
8.0.100.0040.00417.02
8.0.90.0000.00716.96
8.0.80.0030.01816.97
8.0.70.0070.00016.98
8.0.60.0030.00517.01
8.0.50.0050.00316.92
8.0.30.0100.00817.17
8.0.20.0100.00917.40
8.0.10.0000.00816.90
8.0.00.0250.00316.84
7.4.330.0060.00015.55
7.4.320.0040.00416.57
7.4.300.0030.00316.54
7.4.290.0130.00016.43
7.4.280.0000.00816.54
7.4.270.0040.00416.65
7.4.260.0000.00813.20
7.4.250.0040.00416.60
7.4.240.0070.00016.68
7.4.230.0040.00416.69
7.4.220.0060.01216.62
7.4.210.0040.01416.65
7.4.200.0000.00716.64
7.4.160.0050.01116.48
7.4.150.0130.00417.40
7.4.140.0110.01117.86
7.4.130.0080.01016.59
7.4.120.0120.01316.56
7.4.110.0060.01016.70
7.4.100.0100.01016.63
7.4.90.0070.01016.53
7.4.80.0100.00619.39
7.4.70.0030.01316.51
7.4.60.0160.00016.70
7.4.50.0070.00716.38
7.4.40.0060.01516.64
7.4.30.0120.00916.61
7.4.10.0030.01014.74
7.4.00.0060.01115.02
7.3.330.0000.00613.26
7.3.320.0000.00513.13
7.3.310.0070.00016.40
7.3.300.0000.00716.36
7.3.290.0080.01016.42
7.3.280.0100.01016.40
7.3.270.0040.01317.40
7.3.260.0140.01016.49
7.3.250.0130.00716.47
7.3.240.0100.00916.42
7.3.230.0140.00916.37
7.3.210.0160.00016.42
7.3.200.0090.00616.32
7.3.190.0110.00616.53
7.3.180.0060.00916.57
7.3.170.0130.00316.68
7.3.160.0130.00316.68
7.3.130.0060.01214.77
7.3.120.0100.00914.99
7.3.110.0080.01014.96
7.3.100.0070.01014.87
7.3.90.0030.01214.85
7.3.80.0060.01014.89
7.3.70.0060.00614.88
7.3.60.0060.00714.72
7.3.50.0080.00514.94
7.3.40.0050.00814.90
7.3.30.0080.00614.85
7.3.20.0080.00716.63
7.3.10.0040.01116.40
7.3.00.0100.00216.67
7.2.330.0070.01016.62
7.2.320.0000.01716.68
7.2.310.0060.01016.67
7.2.300.0160.00716.77
7.2.290.0180.00016.53
7.2.260.0060.01315.20
7.2.250.0100.00814.91
7.2.240.0080.00915.20
7.2.230.0080.00515.04
7.2.220.0080.00614.73
7.2.210.0070.00814.94
7.2.200.0030.00814.96
7.2.190.0070.00514.91
7.2.180.0060.00515.03
7.2.170.0060.00814.87
7.2.160.0020.01314.74
7.2.150.0060.00916.93
7.2.140.0080.00616.87
7.2.130.0060.00916.84
7.2.120.0040.00916.88
7.2.110.0070.00716.99
7.2.100.0060.00716.62
7.2.90.0300.00616.05
7.2.80.0530.00816.04
7.2.70.0290.00616.13
7.2.60.0230.00916.22
7.2.50.0280.00816.30
7.2.40.0260.00916.07
7.2.30.0260.00916.12
7.2.20.0290.00915.98
7.2.10.0290.01016.19
7.2.00.0280.00616.15
7.1.330.0060.00915.70
7.1.320.0080.00715.62
7.1.310.0070.01015.57
7.1.300.0070.00715.49
7.1.290.0060.00615.68
7.1.280.0060.00515.75
7.1.270.0030.00815.51
7.1.260.0000.01115.72
7.1.250.0050.01015.85
7.1.240.0070.00315.63
7.1.230.0060.00615.53
7.1.220.0070.00715.76
7.1.210.0250.00814.87
7.1.200.0440.00915.15
7.1.190.0270.00515.02
7.1.180.0200.00914.87
7.1.170.0250.00914.93
7.1.160.0230.01114.92
7.1.150.0270.01014.98
7.1.140.0280.00714.99
7.1.130.0360.00714.99
7.1.120.0420.00815.06
7.1.110.0350.00615.20
7.1.100.0340.00815.12
7.1.90.0340.00814.91
7.1.80.0470.00814.79
7.1.70.0400.00414.97
7.1.60.0510.00721.03
7.1.50.0480.00821.09
7.1.40.0510.00821.05
7.1.30.0480.00620.97
7.1.20.0460.00621.16
7.1.10.0320.00815.08
7.1.00.0330.00914.76
7.0.330.0110.00015.03
7.0.320.0050.00615.44
7.0.310.0510.00614.67
7.0.300.0270.00814.66
7.0.290.0280.00614.63
7.0.280.0270.00614.52
7.0.270.0250.00714.73
7.0.260.0270.00714.67
7.0.250.0290.00514.70
7.0.240.0230.00914.56
7.0.230.0320.00814.79
7.0.220.0330.00514.73
7.0.210.0390.00714.58
7.0.200.0510.00614.60
7.0.190.0470.00214.60
7.0.180.0330.00914.67
7.0.170.0400.00214.60
7.0.160.0400.00414.76
7.0.150.0460.00614.52
7.0.140.0370.00814.57
7.0.130.0290.01114.61
7.0.120.0320.00814.68
7.0.110.0380.00414.68
7.0.100.0470.01214.56
7.0.90.0320.00814.54
7.0.80.0380.00514.61
7.0.70.0360.00614.50
7.0.60.0520.00614.70
7.0.50.0440.00914.79
7.0.40.0330.00813.44
7.0.30.0400.01113.33
7.0.20.0380.00713.52
7.0.10.0400.00613.50
7.0.00.0570.00813.46
5.6.400.0050.00814.27
5.6.390.0030.01213.96
5.6.380.0060.00614.18
5.6.370.0050.01114.09
5.6.360.0030.01313.99
5.6.350.0060.00714.23
5.6.340.0060.00614.17
5.6.330.0060.00814.21
5.6.320.0070.00413.83
5.6.310.0080.00714.05
5.6.300.0100.00214.10
5.6.290.0080.00814.07
5.6.280.0040.00814.22
5.6.270.0020.01113.96
5.6.260.0050.01013.89
5.6.250.0060.00714.07
5.6.240.0060.00514.11
5.6.230.0050.01213.96
5.6.220.0070.00714.04
5.6.210.0040.00914.26
5.6.200.0080.00514.15
5.6.190.0100.00413.99
5.6.180.0030.01114.04
5.6.170.0080.00514.06
5.6.160.0100.00314.12
5.6.150.0060.00713.93
5.6.140.0050.00813.97
5.6.130.0070.00714.04
5.6.120.0060.00614.21
5.6.110.0080.00713.91
5.6.100.0070.00814.18
5.6.90.0030.01014.13
5.6.80.0070.00514.02
5.6.70.0000.01213.93
5.6.60.0050.00614.07
5.6.50.0050.00713.96
5.6.40.0050.00814.14
5.6.30.0020.01013.93
5.6.20.0000.01113.97
5.6.10.0060.00613.86
5.6.00.0040.00714.01

preferences:
43.21 ms | 401 KiB | 5 Q