3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [1,2,3]; foreach($a as $k=>&$v){ $v += 1; } unset($v); var_dump($a); $v = 0; var_dump($a);

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)
8.3.60.0120.00318.55
8.3.50.0070.00718.11
8.3.40.0120.00318.70
8.3.30.0000.01518.49
8.3.20.0030.00519.06
8.3.10.0040.00421.73
8.3.00.0060.00319.67
8.2.180.0070.01416.63
8.2.170.0090.00622.96
8.2.160.0040.01119.16
8.2.150.0090.00024.18
8.2.140.0050.00324.66
8.2.130.0040.00420.26
8.2.120.0070.00426.35
8.2.110.0030.00620.93
8.2.100.0070.00417.84
8.2.90.0050.00319.17
8.2.80.0030.00617.97
8.2.70.0080.00017.63
8.2.60.0080.00017.93
8.2.50.0040.00418.10
8.2.40.0000.00820.42
8.2.30.0040.00419.36
8.2.20.0030.00618.12
8.2.10.0050.00218.02
8.2.00.0040.00418.20
8.1.280.0140.00025.92
8.1.270.0000.00922.10
8.1.260.0000.00826.35
8.1.250.0000.00828.09
8.1.240.0090.00021.24
8.1.230.0040.00719.03
8.1.220.0090.00017.74
8.1.210.0090.00018.77
8.1.200.0060.00617.48
8.1.190.0060.00317.66
8.1.180.0050.00318.10
8.1.170.0000.00818.59
8.1.160.0000.00718.89
8.1.150.0000.00720.00
8.1.140.0000.00819.59
8.1.130.0080.00018.84
8.1.120.0040.00417.47
8.1.110.0030.00517.34
8.1.100.0050.00317.44
8.1.90.0020.00517.35
8.1.80.0000.00817.49
8.1.70.0000.00717.48
8.1.60.0040.00717.59
8.1.50.0050.00317.39
8.1.40.0030.00617.51
8.1.30.0000.00717.66
8.1.20.0040.00417.47
8.1.10.0030.00617.39
8.1.00.0080.00017.41
8.0.300.0000.00720.06
8.0.290.0000.00916.63
8.0.280.0030.00318.48
8.0.270.0030.00317.25
8.0.260.0030.00619.01
8.0.250.0070.00016.86
8.0.240.0000.00816.95
8.0.230.0000.00716.98
8.0.220.0030.00316.79
8.0.210.0000.00716.90
8.0.200.0070.00016.93
8.0.190.0030.00617.00
8.0.180.0070.00016.79
8.0.170.0000.00716.77
8.0.160.0050.00316.83
8.0.150.0030.00516.79
8.0.140.0000.00816.77
8.0.130.0000.00513.37
8.0.120.0040.00416.86
8.0.110.0030.00516.98
8.0.100.0040.00416.83
8.0.90.0070.00016.77
8.0.80.0030.01316.84
8.0.70.0000.00816.70
8.0.60.0080.00016.83
8.0.50.0000.00816.74
8.0.30.0100.01017.13
8.0.20.0130.00517.41
8.0.10.0030.00317.07
8.0.00.0130.00416.88
7.4.330.0060.00015.55
7.4.320.0030.00316.40
7.4.300.0000.00616.47
7.4.290.0000.00716.38
7.4.280.0020.00516.43
7.4.270.0040.00416.63
7.4.260.0040.00416.58
7.4.250.0030.00316.36
7.4.240.0070.00016.44
7.4.230.0040.00416.48
7.4.220.0070.01016.68
7.4.210.0050.01016.60
7.4.200.0050.00316.39
7.4.160.0110.00616.34
7.4.150.0110.00717.40
7.4.140.0070.01417.86
7.4.130.0120.00916.61
7.4.120.0070.01316.48
7.4.110.0120.01216.33
7.4.100.0090.00916.50
7.4.90.0060.01016.48
7.4.80.0140.00819.39
7.4.70.0120.00616.33
7.4.60.0070.01016.35
7.4.50.0070.01116.32
7.4.40.0130.00316.39
7.4.30.0100.00616.55
7.4.00.0070.01014.92
7.3.330.0030.00312.95
7.3.320.0030.00313.01
7.3.310.0020.00516.19
7.3.300.0030.00316.14
7.3.290.0000.01016.14
7.3.280.0070.01016.26
7.3.270.0070.01117.40
7.3.260.0020.01616.38
7.3.240.0110.00616.33
7.3.230.0120.00416.56
7.3.210.0130.00416.49
7.3.200.0120.00616.62
7.3.190.0060.01016.45
7.3.180.0130.00316.22
7.3.170.0160.00616.46
7.3.160.0170.00716.42
7.2.330.0130.00316.75
7.2.320.0160.00716.45
7.2.310.0080.00816.68
7.2.300.0120.00916.74
7.2.290.0030.01916.43
7.2.60.0040.00817.00
7.2.00.0070.00719.54
7.1.200.0000.01015.61
7.1.100.0060.00318.10
7.1.70.0030.01317.23
7.1.60.0140.00317.31
7.1.50.2100.01332.62
7.1.40.0200.00732.68
7.1.30.0200.00732.71
7.1.20.0270.01332.57
7.1.10.0030.01314.42
7.1.00.0000.01314.68
7.0.200.0060.01316.53
7.0.190.0070.00714.88
7.0.180.1470.01714.52
7.0.170.0000.01714.55
7.0.160.0100.00714.36
7.0.150.0030.00714.36
7.0.140.1470.01014.46
7.0.130.0030.01314.38
7.0.120.0030.01014.63
7.0.110.0070.00714.39
7.0.100.0130.00314.37
7.0.90.0330.00314.34
7.0.80.0170.01014.40
7.0.70.1700.00714.33
7.0.60.1100.01014.11
7.0.50.1300.01014.45
7.0.40.1470.00714.72
7.0.30.1330.00714.49
7.0.20.1230.00714.65
7.0.10.1130.01014.39
7.0.00.1200.00714.27

preferences:
60.19 ms | 401 KiB | 5 Q