3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = NULL; $y = 7; $z = 3; $x = $x ?? $y ?? $z; var_dump($x);

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)
8.3.60.0140.00716.50
8.3.50.0090.00922.00
8.3.40.0070.00718.59
8.3.30.0090.00618.42
8.3.20.0040.00420.04
8.3.10.0090.00923.70
8.3.00.0040.00419.60
8.2.180.0100.00718.41
8.2.170.0140.00322.96
8.2.160.0110.00420.35
8.2.150.0070.01124.18
8.2.140.0090.00624.66
8.2.130.0040.00719.24
8.2.120.0040.00426.35
8.2.110.0040.00422.02
8.2.100.0100.00317.80
8.2.90.0040.00419.22
8.2.80.0040.00417.97
8.2.70.0030.00917.38
8.2.60.0030.00717.93
8.2.50.0030.00618.07
8.2.40.0060.00322.34
8.2.30.0040.00420.66
8.2.20.0000.00717.53
8.2.10.0040.00417.95
8.2.00.0040.00418.00
8.1.280.0040.01125.92
8.1.270.0070.00020.29
8.1.260.0090.00628.09
8.1.250.0050.00228.09
8.1.240.0090.00023.76
8.1.230.0070.00417.83
8.1.220.0000.00817.74
8.1.210.0070.00318.77
8.1.200.0040.00417.23
8.1.190.0000.00817.13
8.1.180.0040.00418.10
8.1.170.0040.00418.35
8.1.160.0000.00720.61
8.1.150.0000.00718.72
8.1.140.0000.00819.50
8.1.130.0000.00717.59
8.1.120.0000.00717.43
8.1.110.0030.00817.39
8.1.100.0000.00717.38
8.1.90.0040.00717.35
8.1.80.0080.00017.41
8.1.70.0070.00017.24
8.1.60.0000.00917.50
8.1.50.0040.00417.32
8.1.40.0000.00817.42
8.1.30.0040.00417.57
8.1.20.0000.00717.55
8.1.10.0030.00517.46
8.1.00.0040.00417.48
8.0.300.0000.00718.77
8.0.290.0030.00616.63
8.0.280.0040.00418.35
8.0.270.0030.00317.19
8.0.260.0000.00617.18
8.0.250.0070.00016.79
8.0.240.0000.00816.92
8.0.230.0000.00716.74
8.0.220.0000.00716.87
8.0.210.0030.00316.72
8.0.200.0030.00316.80
8.0.190.0050.00616.90
8.0.180.0000.00716.73
8.0.170.0040.00416.85
8.0.160.0040.00416.75
8.0.150.0050.00316.67
8.0.140.0070.00016.60
8.0.130.0030.00313.25
8.0.120.0000.00716.76
8.0.110.0000.00716.81
8.0.100.0000.00816.80
8.0.90.0040.00416.80
8.0.80.0110.01116.80
8.0.70.0000.00716.81
8.0.60.0000.00816.72
8.0.50.0000.00716.80
8.0.30.0090.00917.21
8.0.20.0090.01017.40
8.0.10.0070.00016.82
8.0.00.0120.00716.92
7.4.330.0050.00016.71
7.4.320.0000.00716.53
7.4.300.0060.00016.50
7.4.290.0000.00716.48
7.4.280.0070.00016.57
7.4.270.0000.00716.35
7.4.260.0030.00316.52
7.4.250.0000.00816.34
7.4.240.0020.00716.35
7.4.230.0030.00316.53
7.4.220.0070.01316.59
7.4.210.0070.01416.46
7.4.200.0000.00716.27
7.4.160.0030.01216.44
7.4.150.0070.01017.40
7.4.140.0100.00917.86
7.4.130.0130.00716.49
7.4.120.0060.01116.43
7.4.110.0040.01416.48
7.4.100.0090.00816.55
7.4.90.0090.00816.27
7.4.80.0180.00619.39
7.4.70.0090.00916.49
7.4.60.0150.00016.52
7.4.50.0100.00616.27
7.4.40.0090.01316.32
7.4.30.0100.00716.56
7.4.00.0040.01114.97
7.3.330.0030.00312.99
7.3.320.0020.00213.13
7.3.310.0070.00016.20
7.3.300.0040.00416.08
7.3.290.0090.00616.20
7.3.280.0140.00316.21
7.3.270.0070.01017.40
7.3.260.0140.00316.22
7.3.250.0080.01116.39
7.3.240.0100.00616.26
7.3.230.0140.00316.39
7.3.210.0000.01716.27
7.3.200.0050.01116.14
7.3.190.0080.00816.45
7.3.180.0100.00716.21
7.3.170.0100.01016.27
7.3.160.0140.00316.23
7.3.120.0090.00314.70
7.3.110.0040.01214.85
7.3.100.0030.00914.40
7.3.90.0030.00514.82
7.3.80.0100.00614.78
7.3.70.0000.00914.46
7.3.60.0070.00714.76
7.3.50.0030.00614.41
7.3.40.0070.00714.82
7.3.30.0140.00014.78
7.3.20.0040.00716.20
7.3.10.0030.00816.58
7.3.00.0050.00416.67
7.2.330.0060.00916.20
7.2.320.0150.00616.27
7.2.310.0100.00716.56
7.2.300.0100.01016.38
7.2.290.0060.01216.13
7.2.240.0000.01315.11
7.2.230.0030.01015.01
7.2.220.0080.00314.67
7.2.210.0040.01214.65
7.2.200.0040.00414.78
7.2.190.0030.01014.88
7.2.180.0000.00814.77
7.2.170.0100.00714.89
7.2.160.0070.00714.77
7.2.150.0000.01416.74
7.2.140.0030.01016.73
7.2.130.0020.01116.67
7.2.120.0080.00316.77
7.2.110.0020.01316.78
7.2.100.0050.00816.65
7.2.90.0040.00916.83
7.2.80.0040.01016.63
7.2.70.0050.00416.71
7.2.60.0070.00416.76
7.2.50.0060.00616.81
7.2.40.0040.00616.68
7.2.30.0090.00716.70
7.2.20.0090.00816.70
7.2.10.0100.00716.73
7.2.00.0030.01017.71
7.1.330.0030.01015.81
7.1.320.0090.00315.84
7.1.310.0070.00715.82
7.1.300.0110.00415.73
7.1.290.0030.01015.62
7.1.280.0060.00615.89
7.1.270.0030.00615.82
7.1.260.0070.00415.73
7.1.250.0040.00715.61
7.1.200.0040.00815.58
7.1.70.0050.00517.13
7.1.60.0130.01019.44
7.1.50.0040.00716.90
7.1.00.0030.07722.51
7.0.200.0030.01016.66
7.0.60.0100.05020.02
7.0.50.0030.04017.84
7.0.40.0030.05319.90
7.0.30.0370.06720.21
7.0.20.0270.07720.29
7.0.10.0130.04320.21
7.0.00.0130.06319.99
5.6.280.0000.07321.10
5.6.210.0170.07720.68
5.6.200.0070.07718.19
5.6.190.0000.04720.46
5.6.180.0200.05720.44
5.6.170.0270.04720.55
5.6.160.0130.07320.51
5.6.150.0030.05018.15
5.6.140.0070.08318.20
5.6.130.0000.04718.16
5.6.120.0030.07721.13
5.6.110.0130.08020.96
5.6.100.0070.06721.00
5.6.90.0130.03321.17
5.6.80.0070.08020.36
5.5.350.0170.08320.43
5.5.340.0030.08317.99
5.5.330.0100.03720.27
5.5.320.0370.04320.31
5.5.310.0230.07720.34
5.5.300.0030.04317.98
5.5.290.0030.05718.02
5.5.280.0070.04720.97
5.5.270.0170.06320.79
5.5.260.0070.04320.78
5.5.250.0070.03720.68
5.5.240.0300.07020.03

preferences:
49.66 ms | 401 KiB | 5 Q