3v4l.org

run code in 300+ PHP versions simultaneously
<?php declare(strict_types=1); function foo(string $bar = null) { var_dump($bar); } foo(null);

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)
8.3.60.0180.00416.75
8.3.50.0100.00821.15
8.3.40.0070.00718.57
8.3.30.0080.00818.54
8.3.20.0000.00720.16
8.3.10.0050.00321.77
8.3.00.0050.00323.53
8.2.180.0100.01018.04
8.2.170.0040.01122.96
8.2.160.0130.00020.53
8.2.150.0050.00324.18
8.2.140.0050.00324.66
8.2.130.0000.00819.54
8.2.120.0000.00726.35
8.2.110.0090.00022.30
8.2.100.0040.00817.60
8.2.90.0000.00818.02
8.2.80.0000.00917.97
8.2.70.0090.00017.50
8.2.60.0050.00317.80
8.2.50.0000.00818.07
8.2.40.0030.00620.41
8.2.30.0000.00819.30
8.2.20.0070.00017.55
8.2.10.0060.00317.97
8.2.00.0040.00417.90
8.1.280.0110.00725.92
8.1.270.0000.01424.01
8.1.260.0060.00328.09
8.1.250.0160.00328.09
8.1.240.0090.00023.90
8.1.230.0070.00420.72
8.1.220.0060.00317.74
8.1.210.0000.00818.77
8.1.200.0100.00017.23
8.1.190.0000.00917.10
8.1.180.0040.00418.10
8.1.170.0040.00418.52
8.1.160.0040.00420.54
8.1.150.0060.00318.70
8.1.140.0030.00519.40
8.1.130.0040.00417.60
8.1.120.0030.00517.23
8.1.110.0030.00417.17
8.1.100.0000.00717.23
8.1.90.0000.00817.39
8.1.80.0040.00417.25
8.1.70.0000.00717.35
8.1.60.0040.00417.54
8.1.50.0040.00417.33
8.1.40.0000.00817.35
8.1.30.0030.00617.59
8.1.20.0050.00317.54
8.1.10.0080.00017.28
8.1.00.0040.00417.20
8.0.300.0000.00720.10
8.0.290.0000.00716.63
8.0.280.0000.00718.30
8.0.270.0040.00417.17
8.0.260.0030.00517.10
8.0.250.0040.00416.82
8.0.240.0000.00716.80
8.0.230.0000.00716.88
8.0.220.0000.00716.78
8.0.210.0030.00316.64
8.0.200.0030.00316.73
8.0.190.0070.00016.78
8.0.180.0000.00816.82
8.0.170.0040.00416.79
8.0.160.0040.00416.74
8.0.150.0050.00216.55
8.0.140.0080.00016.72
8.0.130.0030.00313.18
8.0.120.0000.00816.74
8.0.110.0040.00416.67
8.0.100.0030.00516.63
8.0.90.0080.00016.55
8.0.80.0100.01016.64
8.0.70.0070.00016.82
8.0.60.0040.00416.64
8.0.50.0000.00716.73
8.0.30.0050.01417.02
8.0.20.0170.00817.40
8.0.10.0000.00816.92
8.0.00.0170.01016.69
7.4.330.0000.00516.79
7.4.320.0030.00316.40
7.4.300.0030.00316.53
7.4.290.0040.00416.41
7.4.280.0060.00316.42
7.4.270.0040.00416.43
7.4.260.0040.00416.46
7.4.250.0030.00616.41
7.4.240.0030.00516.40
7.4.230.0030.00316.51
7.4.220.0030.01516.43
7.4.210.0070.01016.47
7.4.200.0030.00316.18
7.4.160.0110.00716.20
7.4.150.0120.00617.40
7.4.140.0100.00717.86
7.4.130.0100.01016.42
7.4.120.0080.00916.44
7.4.110.0120.00616.43
7.4.100.0060.01516.29
7.4.90.0150.00316.42
7.4.80.0100.00719.39
7.4.70.0100.00716.40
7.4.60.0060.00916.34
7.4.50.0000.01416.37
7.4.40.0090.01216.30
7.4.30.0060.01516.35
7.4.10.0100.00715.02
7.4.00.0000.01614.82
7.3.330.0030.00313.23
7.3.320.0040.00213.22
7.3.310.0070.00016.19
7.3.300.0000.00716.24
7.3.290.0030.00316.19
7.3.280.0090.00616.23
7.3.270.0140.00317.40
7.3.260.0100.01016.26
7.3.250.0080.00916.28
7.3.240.0130.00316.35
7.3.230.0070.01116.39
7.3.210.0040.01216.36
7.3.200.0140.00316.47
7.3.190.0090.00916.42
7.3.180.0120.01216.32
7.3.170.0030.01416.27
7.3.160.0060.01016.22
7.3.130.0120.00614.59
7.3.120.0030.01414.73
7.3.110.0110.00414.68
7.3.100.0000.01214.60
7.3.90.0060.00614.49
7.3.80.0030.00914.61
7.3.70.0050.00514.57
7.3.60.0030.01114.82
7.3.50.0070.00714.71
7.3.40.0110.00414.49
7.3.30.0080.00814.62
7.3.20.0090.00416.64
7.3.10.0270.01015.99
7.3.00.0260.00815.81
7.2.330.0110.00716.11
7.2.320.0100.00716.42
7.2.310.0090.01316.15
7.2.300.0090.00916.22
7.2.290.0030.01316.54
7.2.260.0060.01315.00
7.2.250.0030.01314.74
7.2.240.0070.00714.78
7.2.230.0070.01015.06
7.2.220.0060.00914.74
7.2.210.0030.01014.76
7.2.200.0100.00014.83
7.2.190.0030.01014.87
7.2.180.0060.00914.68
7.2.170.0030.01214.63
7.2.160.0070.00714.77
7.2.150.0070.00316.81
7.2.140.0120.00416.66
7.2.130.0280.00516.06
7.2.120.0300.00516.06
7.2.110.0480.00616.04
7.2.100.0240.00615.91
7.2.90.0280.00516.09
7.2.80.0190.00616.06
7.2.70.0260.00816.03
7.2.60.0200.00916.10
7.2.50.0230.00816.04
7.2.40.0270.01016.11
7.2.30.0330.01016.00
7.2.20.0270.00816.01
7.2.10.0290.00515.97
7.2.00.0200.00916.76
7.1.330.0030.00515.83
7.1.320.0000.01715.60
7.1.310.0090.00315.62
7.1.300.0030.01015.83
7.1.290.0060.00915.43
7.1.280.0030.01015.45
7.1.270.0040.00715.76
7.1.260.0030.00515.82
7.1.250.0230.00715.02
7.1.240.0570.00914.70
7.1.230.0420.00414.48
7.1.220.0330.00714.77
7.1.210.0290.00614.74
7.1.200.0280.00515.05
7.1.190.0550.01114.67
7.1.180.0590.00614.65
7.1.170.0290.00314.69
7.1.160.0320.00714.74
7.1.150.0440.00914.81
7.1.140.0430.00514.78
7.1.130.0280.00914.60
7.1.120.0290.00614.45
7.1.110.0610.00914.67
7.1.100.0370.00915.86
7.1.90.0630.00514.58
7.1.80.0310.01514.77
7.1.70.0320.00415.56
7.1.60.0230.01016.27
7.1.50.0260.00915.50
7.1.40.0270.00514.66
7.1.30.0360.01314.61
7.1.20.0080.00514.63
7.1.10.0260.00814.65
7.1.00.0210.03117.36
7.0.330.0580.00713.44
7.0.320.0610.01113.46
7.0.310.0570.01513.42
7.0.300.0590.01713.64
7.0.290.0880.01113.43
7.0.280.0780.00313.61
7.0.270.0730.00613.43
7.0.260.0570.01613.32
7.0.250.1100.01613.50
7.0.240.0710.01013.55
7.0.230.0600.01613.47
7.0.220.0680.00313.27
7.0.210.0900.01513.48
7.0.200.0380.00615.06
7.0.190.0690.01613.53
7.0.180.0740.00313.39
7.0.170.0810.00713.61
7.0.160.0640.00313.27
7.0.150.0470.00613.57
7.0.140.0620.01013.41
7.0.130.1770.01013.59
7.0.120.0480.01713.56
7.0.110.0410.01413.31
7.0.100.0420.00713.34
7.0.90.0520.01013.59
7.0.80.0510.01013.27
7.0.70.0650.00613.39
7.0.60.0330.04517.54
7.0.50.0320.02815.65
7.0.40.0310.04216.82
7.0.30.0360.02216.79
7.0.20.0250.02716.89
7.0.10.0200.02316.82
7.0.00.0280.04816.68
5.6.380.0150.00614.00
5.6.370.0090.02114.00
5.6.360.0180.01314.29
5.6.350.0210.00914.30
5.6.340.0140.01414.19
5.6.330.0100.00814.02
5.6.320.0120.00614.07
5.6.310.0120.00314.29
5.6.300.0180.01214.08
5.6.290.0200.00813.87
5.6.280.0060.04117.63
5.6.270.0180.00914.27
5.6.260.0170.00714.04
5.6.250.0140.01014.01
5.6.240.0140.00514.04
5.6.230.0180.01213.99
5.6.220.0160.01613.95
5.6.210.0090.04117.20
5.6.200.0090.04115.97
5.6.190.0120.02417.33
5.6.180.0230.02317.34
5.6.170.0260.02317.29
5.6.160.0120.04717.24
5.6.150.0110.03015.99
5.6.140.0070.05216.19
5.6.130.0070.03116.20
5.6.120.0120.03817.51
5.6.110.0200.03817.46
5.6.100.0140.03717.63
5.6.90.0120.05017.70
5.6.80.0120.03617.08
5.6.70.0090.01414.11
5.6.60.0150.01013.96
5.6.50.0170.00313.85
5.6.40.0090.00914.12
5.6.30.0060.00913.81
5.6.20.0260.00814.12
5.6.10.0250.00014.19
5.6.00.0090.01114.01
5.5.380.0140.00710.98
5.5.370.0120.01210.92
5.5.360.0150.00510.90
5.5.350.2110.02515.79
5.5.340.0060.03614.36
5.5.330.0080.04615.71
5.5.320.0240.02915.66
5.5.310.0110.02915.50
5.5.300.0100.04714.46
5.5.290.0100.03314.44
5.5.280.0110.04015.84
5.5.270.0090.04715.83
5.5.260.0050.04615.96
5.5.250.0030.02615.79
5.5.240.0130.02015.57
5.5.230.0110.00410.89
5.5.220.0160.00510.72
5.5.210.0060.00910.80
5.5.200.0130.00010.81
5.5.190.0130.00811.05
5.5.180.0040.00910.77
5.5.170.0120.00810.77
5.5.160.0080.00310.84
5.5.150.0100.00210.50
5.5.140.0070.00410.94
5.5.130.0120.00610.70
5.5.120.0180.00310.79
5.5.110.0060.00610.94
5.5.100.0080.00410.91
5.5.90.0080.01211.05
5.5.80.0030.01310.79
5.5.70.0160.00410.88
5.5.60.0120.00810.88
5.5.50.0070.00410.78
5.5.40.0160.00410.75
5.5.30.0080.00810.98
5.5.20.0150.00311.02
5.5.10.0080.00510.73
5.5.00.0120.01210.88

preferences:
54.11 ms | 401 KiB | 5 Q