3v4l.org

run code in 300+ PHP versions simultaneously
<?php $maybeHasAB = ['a value']; $defaultAB = ['a default', 'b default']; [$a, $b] = ($maybeHasAB + $defaultAB); var_dump($a, $b); $a = $maybeHasAB[0] ?? $defaultAB[0]; $b = $maybeHasAB[1] ?? $defaultAB[1]; var_dump($a, $b);

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)
8.3.60.0060.00918.30
8.3.50.0100.00716.21
8.3.40.0090.00618.45
8.3.30.0140.00018.67
8.3.20.0050.00220.60
8.3.10.0040.00421.70
8.3.00.0040.00422.57
8.2.180.0090.00616.75
8.2.170.0040.01122.96
8.2.160.0040.01122.13
8.2.150.0030.00624.18
8.2.140.0050.00324.66
8.2.130.0060.00326.16
8.2.120.0110.00421.12
8.2.110.0040.00721.12
8.2.100.0110.00017.78
8.2.90.0060.00319.41
8.2.80.0030.00517.97
8.2.70.0040.00417.63
8.2.60.0030.00517.75
8.2.50.0060.00317.63
8.2.40.0040.00419.42
8.2.30.0000.00819.24
8.2.20.0000.00718.05
8.2.10.0040.00419.21
8.2.00.0030.00618.11
8.1.280.0130.00325.92
8.1.270.0070.00020.33
8.1.260.0030.00626.35
8.1.250.0030.00628.09
8.1.240.0040.00422.47
8.1.230.0080.00420.73
8.1.220.0050.00317.74
8.1.210.0050.00518.77
8.1.200.0080.00017.36
8.1.190.0040.00417.10
8.1.180.0000.00818.10
8.1.170.0050.00318.51
8.1.160.0030.00318.81
8.1.150.0060.00318.73
8.1.140.0000.00720.87
8.1.130.0030.00320.29
8.1.120.0040.00417.28
8.1.110.0040.00417.36
8.1.100.0040.00417.27
8.1.90.0000.00717.44
8.1.80.0000.00817.24
8.1.70.0090.00017.38
8.1.60.0030.00617.50
8.1.50.0070.00317.43
8.1.40.0040.00417.45
8.1.30.0000.00817.64
8.1.20.0000.00717.57
8.1.10.0040.00417.42
8.1.00.0050.00217.51
8.0.300.0070.00019.86
8.0.290.0070.00016.63
8.0.280.0020.00518.30
8.0.270.0000.00717.19
8.0.260.0000.00618.42
8.0.250.0030.00317.00
8.0.240.0030.00616.95
8.0.230.0040.00416.91
8.0.220.0000.00716.85
8.0.210.0030.00316.79
8.0.200.0030.00316.93
8.0.190.0030.00316.98
8.0.180.0040.00416.89
8.0.170.0030.00516.87
8.0.160.0000.00716.77
8.0.150.0030.00516.77
8.0.140.0000.00716.83
8.0.130.0000.00513.34
8.0.120.0040.00416.84
8.0.110.0050.00316.84
8.0.100.0050.00216.74
8.0.90.0030.00316.90
8.0.80.0090.00616.82
8.0.70.0050.00216.93
8.0.60.0020.00516.81
8.0.50.0050.00216.73
8.0.30.0080.00917.03
8.0.20.0150.00316.97
8.0.10.0040.00416.88
8.0.00.0100.00816.73
7.4.330.0000.00516.79
7.4.320.0000.00716.41
7.4.300.0000.00716.57
7.4.290.0020.00516.55
7.4.280.0040.00416.40
7.4.270.0030.00316.42
7.4.260.0070.00016.37
7.4.250.0000.00716.46
7.4.240.0000.00816.47
7.4.230.0000.00616.31
7.4.220.0000.00716.63
7.4.210.0030.01216.42
7.4.200.0070.00016.55
7.4.160.0120.00516.33
7.4.140.0150.00317.86
7.4.130.0090.00916.31
7.4.120.0070.01016.43
7.4.110.0100.00616.36
7.4.100.0090.00916.53
7.4.90.0070.01416.55
7.4.80.0090.01219.39
7.4.70.0100.00716.48
7.4.60.0100.00716.38
7.4.50.0090.00616.59
7.4.40.0030.01616.64
7.4.00.0050.01115.04
7.3.330.0000.00513.14
7.3.320.0000.00513.19
7.3.310.0060.00016.08
7.3.300.0070.00016.24
7.3.290.0090.00616.35
7.3.280.0090.00616.25
7.3.260.0160.01216.45
7.3.240.0100.00916.38
7.3.230.0110.00616.66
7.3.210.0100.00716.38
7.3.200.0080.01316.40
7.3.190.0160.00616.43
7.3.180.0070.01016.20
7.3.170.0030.01316.50
7.3.160.0090.00616.23
7.3.120.0030.01514.77
7.3.110.0090.00714.80
7.3.100.0100.00615.11
7.3.90.0030.01414.49
7.3.80.0070.00715.03
7.3.70.0070.00314.87
7.3.60.0070.00714.86
7.3.50.0000.00914.51
7.3.40.0070.00714.85
7.3.30.0090.00914.69
7.3.20.1480.00615.68
7.3.10.5940.00515.57
7.3.00.3500.01015.68
7.2.330.0120.00616.53
7.2.320.0090.00916.68
7.2.310.0060.01116.72
7.2.300.0110.00716.36
7.2.290.0090.00916.78
7.2.250.0040.01214.53
7.2.240.0100.01014.68
7.2.230.0070.01014.86
7.2.220.0100.00314.90
7.2.210.0000.01615.05
7.2.200.0120.00014.90
7.2.190.0030.01314.73
7.2.180.0030.01115.05
7.2.170.0070.00715.10
7.2.160.0190.00614.95
7.2.150.6490.01015.02
7.2.140.3240.00315.02
7.2.130.1090.01014.75
7.2.120.0600.00315.01
7.2.110.0450.01114.97
7.2.100.0620.00714.81
7.2.90.0620.00715.03
7.2.80.5130.01014.70
7.2.70.0980.01015.07
7.2.60.0510.01014.88
7.2.50.1350.01014.99
7.2.40.0500.02315.05
7.2.31.4840.01014.77
7.2.21.4140.00014.82
7.2.11.5610.00714.68
7.2.01.3360.00714.79
7.1.330.0080.00515.67
7.1.320.0090.00615.96
7.1.310.0000.01615.94
7.1.300.0090.00615.57
7.1.290.0060.00815.78
7.1.280.0060.00615.65
7.1.270.0320.00914.78
7.1.260.6750.00514.78
7.1.250.0450.00313.91

preferences:
57.87 ms | 401 KiB | 5 Q