3v4l.org

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

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)
8.3.60.0190.00318.43
8.3.50.0090.00616.40
8.3.40.0040.01218.63
8.3.30.0120.00318.43
8.3.20.0070.00020.26
8.3.10.0080.00021.76
8.3.00.0050.00220.82
8.2.180.0140.00018.41
8.2.170.0070.01122.96
8.2.160.0110.00422.09
8.2.150.0000.00724.18
8.2.140.0030.00624.66
8.2.130.0070.00026.16
8.2.120.0040.00419.36
8.2.110.0060.00320.43
8.2.100.0040.00717.72
8.2.90.0000.00719.11
8.2.80.0040.00417.97
8.2.70.0080.00017.50
8.2.60.0080.00017.91
8.2.50.0080.00018.10
8.2.40.0000.00820.39
8.2.30.0000.00820.97
8.2.20.0020.00517.98
8.2.10.0000.00717.90
8.2.00.0000.00717.79
8.1.280.0100.01025.92
8.1.270.0040.00424.66
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0060.00322.49
8.1.230.0060.00618.96
8.1.220.0090.00017.74
8.1.210.0000.00918.77
8.1.200.0080.00017.10
8.1.190.0040.00416.98
8.1.180.0040.00418.10
8.1.170.0050.00318.47
8.1.160.0030.00318.92
8.1.150.0050.00320.56
8.1.140.0000.00719.47
8.1.130.0030.00318.79
8.1.120.0080.00017.19
8.1.110.0030.00517.24
8.1.100.0090.00017.16
8.1.90.0040.00417.36
8.1.80.0070.00017.21
8.1.70.0030.00317.32
8.1.60.0060.00317.52
8.1.50.0050.00217.36
8.1.40.0020.00517.30
8.1.30.0040.00417.59
8.1.20.0050.00317.45
8.1.10.0000.00717.21
8.1.00.0000.00817.27
8.0.300.0040.00418.77
8.0.290.0040.00416.58
8.0.280.0000.00718.35
8.0.270.0050.00216.99
8.0.260.0030.00316.68
8.0.250.0030.00316.86
8.0.240.0040.00416.79
8.0.230.0020.00516.79
8.0.220.0030.00316.64
8.0.210.0030.00316.77
8.0.200.0030.00316.72
8.0.190.0000.00916.86
8.0.180.0040.00416.68
8.0.170.0040.00316.70
8.0.160.0000.00816.82
8.0.150.0000.00716.71
8.0.140.0070.00016.62
8.0.130.0030.00313.23
8.0.120.0040.00416.72
8.0.110.0000.00716.72
8.0.100.0070.00016.63
8.0.90.0040.00416.79
8.0.80.0100.00716.82
8.0.70.0000.00716.57
8.0.60.0000.00816.74
8.0.50.0000.00816.74
8.0.30.0090.01016.98
8.0.20.0120.00817.40
8.0.10.0000.00716.74
8.0.00.0100.00816.46
7.4.330.0000.00515.55
7.4.320.0060.00016.42
7.4.300.0000.00616.50
7.4.290.0000.00716.47
7.4.280.0040.00416.43
7.4.270.0070.00016.58
7.4.260.0030.00313.14
7.4.250.0030.00316.36
7.4.240.0000.00716.49
7.4.230.0040.00216.64
7.4.220.0060.01216.39
7.4.210.0090.01116.55
7.4.200.0030.00316.32
7.4.160.0110.00616.50
7.4.150.0110.00817.40
7.4.140.0140.01017.86
7.4.130.0040.02216.34
7.4.120.0100.01216.45
7.4.110.0120.00916.26
7.4.100.0130.00516.21
7.4.90.0110.00516.46
7.4.80.0160.00019.39
7.4.70.0060.01016.49
7.4.60.0060.00916.27
7.4.50.0030.01316.31
7.4.40.0000.01616.15
7.4.30.0220.00016.58
7.4.00.0090.00714.82
7.3.330.0000.00513.09
7.3.320.0000.00513.24
7.3.310.0060.00016.09
7.3.300.0030.00316.25
7.3.290.0070.00616.23
7.3.280.0080.00716.22
7.3.270.0060.01617.40
7.3.260.0090.00816.48
7.3.250.0120.00716.45
7.3.240.0110.00616.30
7.3.230.0170.00816.24
7.3.210.0090.00916.30
7.3.200.0120.00416.61
7.3.190.0160.00316.37
7.3.180.0100.00616.21
7.3.170.0090.01116.35
7.3.160.0080.00816.45
7.3.120.0100.00814.62
7.3.110.0080.00814.66
7.3.100.0040.01214.66
7.3.90.0100.00514.64
7.3.80.0070.00714.85
7.3.70.0040.00614.77
7.3.60.0040.01014.57
7.3.50.0040.01114.73
7.3.40.0060.00814.72
7.3.30.0090.00314.74
7.3.20.0070.00616.43
7.3.10.0060.00716.42
7.3.00.0030.01016.49
7.2.330.0150.00616.64
7.2.320.0140.00716.55
7.2.310.0070.01016.23
7.2.300.0060.01016.13
7.2.290.0100.00616.58
7.2.250.0090.01014.88
7.2.240.0040.01514.72
7.2.230.0060.00914.85
7.2.220.0030.01114.82
7.2.210.0060.00514.57
7.2.200.0050.01014.88
7.2.190.0000.01214.67
7.2.180.0050.01214.83
7.2.170.0000.01114.85
7.2.60.0030.01416.79
7.2.00.0110.01119.21
7.1.330.0030.00915.54
7.1.320.0080.00615.49
7.1.310.0020.00915.64
7.1.300.0070.00715.50
7.1.290.0080.00615.51
7.1.280.0050.00815.48
7.1.270.0050.00915.57
7.1.260.0070.00515.63
7.1.200.0090.00615.61
7.1.100.0070.00717.64
7.1.70.0030.00717.00
7.1.60.0900.01033.32
7.1.50.0800.01732.94
7.1.40.0770.01332.51
7.1.30.0670.02032.36
7.1.20.0630.01032.81
7.1.10.0570.00314.48
7.1.00.0470.01314.61
7.0.200.0570.00714.63
7.0.190.0630.01014.79
7.0.180.0570.01314.28
7.0.170.0500.01314.40
7.0.160.0500.01014.14
7.0.150.0500.00714.11
7.0.140.0570.01014.17
7.0.130.1070.00314.38
7.0.120.0570.00714.61
7.0.110.0600.00714.18
7.0.100.0500.01314.05
7.0.90.0570.00714.16
7.0.80.0570.01014.30
7.0.70.0630.00314.04
7.0.60.0530.01014.11
7.0.50.0730.01314.27
7.0.40.0570.00714.43
7.0.30.0570.01314.56
7.0.20.0570.01314.28
7.0.10.0600.00714.34
7.0.00.0530.01014.50

preferences:
45.28 ms | 401 KiB | 5 Q