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 ?: 'a'; 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)
8.3.60.0120.00616.63
8.3.50.0110.01021.98
8.3.40.0140.00318.79
8.3.30.0140.00018.42
8.3.20.0110.00522.91
8.3.10.0100.00324.68
8.3.00.0070.00724.66
8.2.180.0170.00316.50
8.2.170.0070.00722.96
8.2.160.0070.01120.13
8.2.150.0090.00424.92
8.2.140.0110.00225.16
8.2.130.0090.00423.35
8.2.120.0110.00526.01
8.2.110.0090.00523.09
8.2.100.0150.00521.79
8.2.90.0130.00621.85
8.2.80.0080.00721.82
8.2.70.0130.00821.82
8.2.60.0050.00721.85
8.2.50.0120.00521.88
8.2.40.0060.01023.93
8.2.30.0070.00522.49
8.2.20.0060.00521.73
8.2.10.0090.00620.10
8.2.00.0060.00620.88
8.1.280.0110.00725.92
8.1.270.0140.00223.85
8.1.260.0100.00326.88
8.1.250.0030.00926.88
8.1.240.0100.00824.04
8.1.230.0100.00923.32
8.1.220.0150.00421.70
8.1.210.0110.00622.22
8.1.200.0070.00621.45
8.1.190.0070.00721.45
8.1.180.0100.00621.88
8.1.170.0110.00322.06
8.1.160.0100.00422.30
8.1.150.0070.00722.93
8.1.140.0110.00421.27
8.1.130.0070.00720.59
8.1.120.0080.00620.58
8.1.110.0100.00619.58
8.1.100.0120.00519.59
8.1.90.0110.00419.60
8.1.80.0110.00619.57
8.1.70.0120.00319.56
8.1.60.0130.00419.67
8.1.50.0140.00519.61
8.1.40.0110.00419.67
8.1.30.0140.00519.64
8.1.20.0120.00619.71
8.1.10.0120.00619.60
8.1.00.0110.00519.54
8.0.300.0100.00222.65
8.0.290.0130.00421.14
8.0.280.0140.00322.06
8.0.270.0090.00321.85
8.0.260.0100.00520.25
8.0.250.0100.00319.70
8.0.240.0110.00419.16
8.0.230.0070.00819.11
8.0.220.0080.00719.09
8.0.210.0100.00519.08
8.0.200.0050.00919.16
8.0.190.0090.00619.13
8.0.180.0080.00519.12
8.0.170.0100.00519.10
8.0.160.0080.00519.13
8.0.150.0100.00519.09
8.0.140.0110.00519.07
8.0.130.0120.00318.72
8.0.120.0100.00619.13
8.0.110.0060.00619.08
8.0.100.0110.00319.09
8.0.90.0100.00519.07
8.0.80.0100.00519.10
8.0.70.0090.00419.08
8.0.60.0090.00619.08
8.0.50.0100.00519.11
8.0.30.0080.00818.48
8.0.20.0090.00818.50
8.0.10.0120.00519.19
8.0.00.0080.01018.37
7.4.330.0070.00318.17
7.4.320.0130.00418.70
7.4.300.0130.00518.73
7.4.290.0160.00218.80
7.4.280.0140.00418.79
7.4.270.0110.00518.80
7.4.260.0130.00318.66
7.4.250.0150.00418.76
7.4.240.0080.00618.39
7.4.230.0150.00318.67
7.4.220.0130.00518.63
7.4.210.0130.00318.78
7.4.200.0110.00518.64
7.4.190.0110.00519.30
7.4.180.0120.00419.74
7.4.160.0110.00618.63
7.4.150.0090.00718.83
7.4.140.0100.00618.61
7.4.130.0100.00718.60
7.4.120.0120.00618.33
7.4.110.0120.01118.29
7.4.100.0100.00718.06
7.4.90.0100.00618.04
7.4.80.0120.00518.36
7.4.70.0090.00918.05
7.4.60.0100.00618.01
7.4.50.0100.00618.04
7.4.40.0100.00718.02
7.4.30.0120.00318.01
7.4.20.0080.00817.98
7.4.10.0120.00418.05
7.4.00.0100.00617.31
7.3.330.0120.00317.95
7.3.320.0130.00318.06
7.3.310.0130.00518.60
7.3.300.0120.00618.65
7.3.290.0120.00617.94
7.3.280.0120.00617.96
7.3.270.0140.00318.40
7.3.260.0110.00718.23
7.3.250.0140.00318.65
7.3.240.0120.00617.91
7.3.230.0120.00718.22
7.3.220.0130.00617.89
7.3.210.0150.00417.74
7.3.200.0100.00818.05
7.3.190.0150.00417.75
7.3.180.0100.00717.67
7.3.170.0120.00617.75
7.3.160.0130.00617.69
7.3.150.0110.00817.92
7.3.140.0140.00617.93
7.3.130.0120.00617.96
7.3.120.0110.00617.54
7.3.110.0100.00717.43
7.3.100.0100.00617.45
7.3.90.0120.00517.70
7.3.80.0120.00717.21
7.3.70.0110.00717.21
7.3.60.0120.00617.23
7.3.50.0120.00616.93
7.3.40.0120.00717.00
7.3.30.0130.00617.06
7.3.20.0140.00617.56
7.3.10.0110.00717.40
7.3.00.0120.00517.49
7.2.340.0120.00618.14
7.2.330.0120.00717.74
7.2.320.0110.00917.71
7.2.310.0120.00617.66
7.2.300.0150.00417.64
7.2.290.0140.00517.74
7.2.280.0130.00517.89
7.2.270.0110.00817.94
7.2.260.0120.00717.89
7.2.250.0110.00817.60
7.2.240.0120.00617.50
7.2.230.0110.00717.54
7.2.220.0140.00417.53
7.2.210.0130.00517.23
7.2.200.0140.00717.34
7.2.190.0110.00817.30
7.2.180.0120.00617.06
7.2.170.0100.01017.07
7.2.160.0120.00717.35
7.2.150.0170.00517.77
7.2.140.0150.00717.78
7.2.130.0150.00617.73
7.2.120.0180.00717.40
7.2.110.0150.00817.42
7.2.100.0170.00717.21
7.2.90.0390.00716.78
7.2.80.0410.00616.78
7.2.70.0440.00816.95
7.2.60.0330.00716.89
7.2.50.0390.00716.91
7.2.40.0360.00616.88
7.2.30.0280.00916.86
7.2.20.0360.00816.85
7.2.10.0360.00816.91
7.2.00.0380.00716.83
7.1.330.0160.00617.36
7.1.320.0130.00817.44
7.1.310.0150.00516.98
7.1.300.0150.00817.08
7.1.290.0140.00617.01
7.1.280.0150.00716.68
7.1.270.0140.00616.71
7.1.260.0140.00516.68
7.1.250.0160.00516.65
7.1.240.0160.00716.44
7.1.230.0170.00716.45
7.1.220.0250.00716.17
7.1.210.0450.00715.84
7.1.200.0430.00815.81
7.1.190.0390.00615.80
7.1.180.0520.00715.80
7.1.170.0420.00715.81
7.1.160.0400.00615.77
7.1.150.0420.00615.87
7.1.140.0340.00815.83
7.1.130.0380.00715.73
7.1.120.0390.00715.87
7.1.110.0470.00715.81
7.1.100.0420.00715.84
7.1.90.0410.00715.87
7.1.80.0390.00715.87
7.1.70.0360.00715.82
7.1.60.0390.00720.01
7.1.50.0400.00719.97
7.1.40.0390.00920.02
7.1.30.0340.00819.97
7.1.20.0370.00819.94
7.1.10.0390.00615.76
7.1.00.0310.00715.79
7.0.330.0170.00516.48
7.0.320.0160.00716.17
7.0.310.0400.00715.56
7.0.300.0410.00715.53
7.0.290.0340.00715.53
7.0.280.0330.00715.57
7.0.270.0400.00515.54
7.0.260.0410.00715.62
7.0.250.0460.00615.61
7.0.240.0420.00615.65
7.0.230.0340.00615.70
7.0.220.0420.00615.66
7.0.210.0350.00615.65
7.0.200.0390.00615.57
7.0.190.0320.00515.66
7.0.180.0310.00615.60
7.0.170.0340.00615.67
7.0.160.0350.00715.61
7.0.150.0350.00615.61
7.0.140.0350.00615.62
7.0.130.0340.00515.60
7.0.120.0340.00615.57
7.0.110.0350.00715.57
7.0.100.0330.00515.59
7.0.90.0350.00815.55
7.0.80.0320.00515.55
7.0.70.0280.00615.58
7.0.60.0280.00715.58
7.0.50.0270.00515.50
7.0.40.0250.00815.54
7.0.30.0300.00615.63
7.0.20.0280.00915.63
7.0.10.0250.00715.60
7.0.00.0290.00615.59
5.6.400.0140.01316.66
5.6.390.0150.01116.60
5.6.380.0140.01116.08
5.6.370.0110.01316.11
5.6.360.0130.01116.15
5.6.350.0130.01216.14
5.6.340.0150.01016.11
5.6.330.0130.01216.12
5.6.320.0130.01216.17
5.6.310.0160.01116.17
5.6.300.0100.01415.74
5.6.290.0160.00915.84
5.6.280.0140.01115.81
5.6.270.0120.01215.83
5.6.260.0140.00915.80
5.6.250.0140.01215.83
5.6.240.0130.01215.80
5.6.230.0140.01215.77
5.6.220.0140.01115.86
5.6.210.0130.01215.82
5.6.200.0150.01015.88
5.6.190.0150.01115.85
5.6.180.0170.00915.89
5.6.170.0170.01015.78
5.6.160.0140.01215.84
5.6.150.0160.00915.80
5.6.140.0150.01115.84
5.6.130.0150.01015.83
5.6.120.0120.01315.84
5.6.110.0130.01315.82
5.6.100.0140.01215.79
5.6.90.0150.01215.84
5.6.80.0110.01215.74
5.6.70.0140.01415.75
5.6.60.0130.01215.75
5.6.50.0120.01215.74
5.6.40.0140.01015.75
5.6.30.0150.00915.74
5.6.20.0160.01015.75
5.6.10.0130.01415.73
5.6.00.0130.01215.76
5.5.380.0130.01014.81
5.5.370.0130.01214.80
5.5.360.0120.01214.80
5.5.350.0140.01014.81
5.5.340.0160.00914.74
5.5.330.0140.01114.78
5.5.320.0130.01114.87
5.5.310.0160.00914.84
5.5.300.0140.01014.86
5.5.290.0130.01014.79
5.5.280.0120.01314.83
5.5.270.0120.01214.81
5.5.260.0120.01114.77
5.5.250.0140.00914.71
5.5.240.0110.01114.79
5.5.230.0140.00914.81
5.5.220.0140.01014.75
5.5.210.0120.01314.75
5.5.200.0100.01214.73
5.5.190.0140.01014.73
5.5.180.0120.01014.70
5.5.170.0160.00915.70
5.5.160.0110.01214.76
5.5.150.0110.01114.72
5.5.140.0130.00914.72
5.5.130.0130.01014.68
5.5.120.0110.01214.74
5.5.110.0110.01114.72
5.5.100.0120.01014.79
5.5.90.0120.01114.73
5.5.80.0130.01014.75
5.5.70.0130.01014.77
5.5.60.0120.01014.71
5.5.50.0130.01014.79
5.5.40.0120.00914.71
5.5.30.0130.01014.73
5.5.20.0130.00914.77
5.5.10.0120.01014.67
5.5.00.0110.01214.63

preferences:
46.48 ms | 401 KiB | 5 Q