3v4l.org

run code in 300+ PHP versions simultaneously
<?php declare(strict_types=1); class TestClass { public int $a; } $test = new TestClass(); $string = 'foo'; $test->int = &$string; var_dump($test->int); $test->int = []; var_dump($test->int);

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)
8.3.60.0170.00716.63
8.3.50.0090.00918.39
8.3.40.0100.01018.66
8.3.30.0150.00318.72
8.3.20.0030.00524.18
8.3.10.0080.00024.66
8.3.00.0030.00626.16
8.2.180.0060.00925.92
8.2.170.0070.01019.01
8.2.160.0140.00022.96
8.2.150.0040.00425.66
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0040.00426.35
8.2.110.0000.01021.07
8.2.100.0150.00817.34
8.2.90.0090.00017.88
8.2.80.0040.00418.64
8.2.70.0040.00417.80
8.2.60.0080.00018.16
8.2.50.0060.00318.10
8.2.40.0000.00820.98
8.2.30.0070.00019.13
8.2.20.0070.00017.88
8.2.10.0040.00419.23
8.2.00.0000.00719.25
8.1.280.0130.01025.92
8.1.270.0000.00923.77
8.1.260.0000.00928.09
8.1.250.0040.00428.09
8.1.240.0030.00617.36
8.1.230.0000.01118.97
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0060.00317.35
8.1.190.0000.00817.35
8.1.180.0000.00818.10
8.1.170.0040.00418.61
8.1.160.0060.00318.91
8.1.150.0040.00418.86
8.1.140.0040.00418.83
8.1.130.0070.00020.00
8.1.120.0040.00417.39
8.1.110.0030.00617.36
8.1.100.0000.00817.45
8.1.90.0030.00517.38
8.1.80.0000.00717.37
8.1.70.0080.00017.27
8.1.60.0040.00417.57
8.1.50.0000.00717.39
8.1.40.0000.00817.41
8.1.30.0040.00417.51
8.1.20.0000.00817.56
8.1.10.0030.00517.55
8.1.00.0040.00417.39
8.0.300.0000.00718.77
8.0.290.0030.00516.63
8.0.280.0030.00318.32
8.0.270.0000.00716.77
8.0.260.0060.00018.30
8.0.250.0070.00016.89
8.0.240.0030.00616.84
8.0.230.0080.00016.89
8.0.220.0000.00716.83
8.0.210.0000.00816.79
8.0.200.0000.00716.79
8.0.190.0070.00016.82
8.0.180.0040.00416.76
8.0.170.0050.00316.79
8.0.160.0030.00516.82
8.0.150.0000.00816.78
8.0.140.0000.00816.75
8.0.130.0030.00313.32
8.0.120.0000.00816.72
8.0.110.0000.00716.81
8.0.100.0000.00716.80
8.0.90.0050.00316.70
8.0.80.0080.01116.79
8.0.70.0040.00416.71
8.0.60.0040.00416.70
8.0.50.0050.00216.82
8.0.30.0120.00617.15
8.0.20.0110.00716.94
8.0.10.0100.01617.00
8.0.00.0070.01317.05
7.4.330.0050.00015.55
7.4.320.0030.00316.58
7.4.300.0060.00016.54
7.4.290.0030.00316.47
7.4.280.0060.00316.37
7.4.270.0030.00316.44
7.4.260.0030.00313.23
7.4.250.0020.00516.33
7.4.240.0000.00716.37
7.4.230.0000.00716.34
7.4.220.0050.00216.43
7.4.210.0070.00916.48
7.4.200.0000.00716.56
7.4.140.0120.00616.35
7.4.130.0090.01116.26
7.4.120.0110.00716.40
7.4.110.0120.00616.19
7.4.100.0150.00616.53
7.4.90.0060.01316.38
7.4.80.0230.00016.33
7.4.70.0090.01016.07
7.4.60.0110.00916.32
7.4.50.0070.01816.44
7.4.40.0030.01516.52
7.4.30.0150.01116.42
7.4.20.0110.00716.40
7.4.10.0140.00416.12
7.4.00.0070.01016.30
7.3.330.0070.00016.09
7.3.320.0030.00313.21
7.3.310.0030.00616.04
7.3.300.0000.00616.02
7.3.290.0110.00316.13
7.3.260.0030.01416.14
7.3.250.0110.00716.30
7.3.240.0150.00416.27
7.3.230.0150.00916.12
7.3.220.0070.01016.28
7.3.210.0070.01116.09
7.3.200.0100.01316.34
7.3.190.0060.01816.18
7.3.180.0130.00716.18
7.3.170.0120.00616.24
7.3.160.0130.00716.40
7.3.150.0050.01416.12
7.3.140.0060.01216.09
7.3.130.0140.00416.21
7.3.120.0090.00916.14
7.3.110.0130.01016.27
7.3.100.0100.01316.18
7.3.90.0120.01116.14
7.3.80.0070.01016.16
7.3.70.0060.01216.22
7.3.60.0140.00316.23
7.3.50.0070.01616.23
7.3.40.0090.01216.39
7.3.30.0140.00716.13
7.3.20.0180.00016.14
7.3.10.0090.01116.34
7.3.00.0110.00716.30
4.3.00.0010.00110.49

preferences:
55.01 ms | 401 KiB | 5 Q