3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [1,2,3]; $b = [4,5,6]; foreach ($a as &$v) { $v += 10; } var_dump($a[2]); foreach ($b as $v) { var_dump($a[2]); $v *= -1; } var_dump($a[2]); 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)
8.3.60.0150.00018.31
8.3.50.0060.01216.61
8.3.40.0120.00318.80
8.3.30.0160.00018.84
8.3.20.0050.00321.73
8.3.10.0050.00323.58
8.3.00.0000.00823.67
8.2.180.0060.00916.46
8.2.170.0200.00722.96
8.2.160.0070.00720.10
8.2.150.0040.00424.18
8.2.140.0060.00324.66
8.2.130.0000.00821.06
8.2.120.0070.00026.35
8.2.110.0030.00721.99
8.2.100.0090.00317.84
8.2.90.0050.00319.46
8.2.80.0040.00418.21
8.2.70.0080.00018.04
8.2.60.0060.00317.63
8.2.50.0080.00018.28
8.2.40.0060.00320.47
8.2.30.0000.00820.57
8.2.20.0050.00318.09
8.2.10.0040.00418.11
8.2.00.0000.00718.17
8.1.280.0070.00725.92
8.1.270.0050.00322.15
8.1.260.0080.00026.35
8.1.250.0000.00728.09
8.1.240.0070.00319.12
8.1.230.0040.00820.95
8.1.220.0060.00317.79
8.1.210.0030.00618.77
8.1.200.0040.00417.35
8.1.190.0030.00617.23
8.1.180.0030.00618.10
8.1.170.0030.00618.54
8.1.160.0080.00018.91
8.1.150.0040.00420.19
8.1.140.0050.00317.59
8.1.130.0030.00318.94
8.1.120.0030.00317.34
8.1.110.0000.00717.45
8.1.100.0040.00417.46
8.1.90.0070.00317.40
8.1.80.0050.00317.48
8.1.70.0080.00017.48
8.1.60.0000.00817.55
8.1.50.0000.00817.50
8.1.40.0000.00817.39
8.1.30.0050.00217.65
8.1.20.0040.00417.66
8.1.10.0000.00817.41
8.1.00.0000.00817.41
8.0.300.0040.00420.07
8.0.290.0000.00916.75
8.0.280.0030.00718.45
8.0.270.0030.00317.18
8.0.260.0030.00316.80
8.0.250.0060.00316.83
8.0.240.0030.00716.86
8.0.230.0070.00016.91
8.0.220.0030.00316.82
8.0.210.0070.00016.92
8.0.200.0000.00716.95
8.0.190.0040.00416.87
8.0.180.0080.00016.98
8.0.170.0000.00816.90
8.0.160.0040.00416.79
8.0.150.0000.00716.73
8.0.140.0070.00016.73
8.0.130.0030.00313.30
8.0.120.0030.00616.82
8.0.110.0000.00816.83
8.0.100.0040.00416.82
8.0.90.0040.00416.73
8.0.80.0030.01316.86
8.0.70.0080.00016.88
8.0.60.0030.00316.82
8.0.50.0040.00416.73
8.0.30.0090.00917.00
8.0.20.0140.00817.40
8.0.10.0000.00817.01
8.0.00.0160.00616.79
7.4.330.0030.00315.55
7.4.320.0040.00416.55
7.4.300.0030.00316.50
7.4.290.0030.00516.50
7.4.280.0020.00516.57
7.4.270.0070.00016.48
7.4.260.0030.00316.52
7.4.250.0060.00316.58
7.4.240.0040.00416.50
7.4.230.0070.00016.40
7.4.220.0030.00516.47
7.4.210.0050.01016.50
7.4.200.0080.00016.47
7.4.160.0060.00916.34
7.4.140.0100.01017.86
7.4.130.0110.00716.50
7.4.120.0080.01016.51
7.4.110.0000.01716.65
7.4.100.0100.00716.32
7.4.90.0030.01316.51
7.4.80.0140.00919.39
7.4.70.0130.00416.05
7.4.60.0030.01816.43
7.4.50.0060.00616.58
7.4.40.0090.00616.56
7.4.00.0070.00714.91
7.3.330.0030.00513.17
7.3.320.0030.00313.17
7.3.310.0000.00716.46
7.3.300.0060.00016.21
7.3.290.0000.00716.21
7.3.280.0050.01016.19
7.3.260.0090.00816.47
7.3.250.0120.00716.46
7.3.240.0100.01016.35
7.3.230.0120.00416.31
7.3.210.0000.01716.33
7.3.200.0090.00616.32
7.3.190.0120.00316.39
7.3.180.0080.00816.43
7.3.170.0110.00616.35
7.3.160.0090.00616.64
7.2.330.0130.00416.37
7.2.320.0100.00716.48
7.2.310.0120.00916.55
7.2.300.0120.00416.44
7.2.290.0000.01716.73
7.2.60.0040.01117.11
7.2.30.0130.01518.72
7.2.20.0150.01518.72
7.2.10.0160.01618.74
7.2.00.0150.01418.76
7.1.200.0060.00715.82
7.1.150.0150.01217.56
7.1.140.0140.01317.71
7.1.130.0140.01617.85
7.1.120.0140.01417.68
7.1.110.0150.01217.18
7.1.100.0120.01217.28
7.1.90.0140.01417.18
7.1.80.0150.01017.03
7.1.70.0120.00716.39
7.1.60.0330.01734.30
7.1.50.0680.01333.00
7.1.40.0460.01532.67
7.1.30.0330.02132.81
7.1.20.0400.02032.68
7.1.10.0170.01014.80
7.1.00.0150.01414.83

preferences:
57.85 ms | 401 KiB | 5 Q