3v4l.org

run code in 300+ PHP versions simultaneously
<?php $u = []; $a = [0, 1, 2, 0, 1, 2]; foreach ($a as $v) { if (isset($u[$v])) { continue; } $u[$v] = array_keys($a, $v); } var_dump($u);

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)
8.3.70.0040.01216.50
8.3.60.0030.01218.43
8.3.50.0080.01017.23
8.3.40.0090.00918.58
8.3.30.0090.00618.38
8.3.20.0070.00021.76
8.3.10.0040.00421.60
8.3.00.0000.00819.04
8.2.180.0070.00718.54
8.2.170.0120.00322.96
8.2.160.0100.00322.20
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0050.00322.12
8.2.120.0000.00826.35
8.2.110.0070.00321.10
8.2.100.0060.00617.97
8.2.90.0070.00319.04
8.2.80.0030.00617.97
8.2.70.0040.00417.50
8.2.60.0000.00817.93
8.2.50.0000.00818.10
8.2.40.0070.00320.31
8.2.30.0000.00821.08
8.2.20.0040.00418.07
8.2.10.0040.00418.16
8.2.00.0000.00818.15
8.1.280.0110.00725.92
8.1.270.0080.00023.89
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0040.00422.69
8.1.230.0040.00817.70
8.1.220.0040.00417.74
8.1.210.0070.00318.77
8.1.200.0060.00317.21
8.1.190.0070.00317.35
8.1.180.0040.00418.10
8.1.170.0040.00418.59
8.1.160.0000.00718.97
8.1.150.0070.00018.87
8.1.140.0040.00419.58
8.1.130.0030.00318.80
8.1.120.0070.00017.37
8.1.110.0070.00017.43
8.1.100.0040.00417.46
8.1.90.0040.00417.44
8.1.80.0030.00317.45
8.1.70.0030.00317.46
8.1.60.0000.00817.46
8.1.50.0040.00417.45
8.1.40.0050.00317.52
8.1.30.0000.00817.64
8.1.20.0080.00017.68
8.1.10.0050.00217.52
8.1.00.0040.00417.47
8.0.300.0040.00419.96
8.0.290.0040.00416.63
8.0.280.0070.00018.35
8.0.270.0040.00417.18
8.0.260.0000.00716.83
8.0.250.0000.00816.95
8.0.240.0000.00716.97
8.0.230.0000.00716.92
8.0.220.0040.00416.80
8.0.210.0070.00016.88
8.0.200.0000.00716.84
8.0.190.0000.00716.97
8.0.180.0000.00716.85
8.0.170.0000.00716.87
8.0.160.0070.00016.82
8.0.150.0040.00416.81
8.0.140.0000.00716.75
8.0.130.0050.00013.29
8.0.120.0000.00716.88
8.0.110.0070.00016.70
8.0.100.0030.00516.68
8.0.90.0040.00416.77
8.0.80.0120.00316.78
8.0.70.0050.00216.93
8.0.60.0070.00016.93
8.0.50.0080.00016.75
8.0.30.0080.01116.97
8.0.20.0120.00617.40
8.0.10.0040.00417.08
8.0.00.0070.01116.78
7.4.330.0030.00315.55
7.4.320.0000.00616.53
7.4.300.0040.00416.59
7.4.290.0000.01016.61
7.4.280.0000.00916.50
7.4.270.0100.00016.66
7.4.260.0030.00313.18
7.4.250.0040.00416.36
7.4.240.0000.00716.61
7.4.230.0030.00316.70
7.4.220.0130.01316.60
7.4.210.0060.00916.37
7.4.200.0000.00716.34
7.4.160.0100.00716.44
7.4.150.0120.00617.40
7.4.140.0100.00817.86
7.4.130.0100.01416.54
7.4.120.0100.00916.51
7.4.110.0050.01116.54
7.4.100.0040.01216.48
7.4.90.0030.01316.54
7.4.80.0130.00919.39
7.4.70.0040.01216.59
7.4.60.0080.00816.55
7.4.50.0030.00916.41
7.4.40.0150.00016.61
7.4.30.0070.01016.52
7.4.00.0030.01415.11
7.3.330.0000.00513.21
7.3.320.0000.00613.13
7.3.310.0000.00616.30
7.3.300.0000.00716.35
7.3.290.0070.00916.37
7.3.280.0090.00716.33
7.3.270.0140.00317.40
7.3.260.0120.00916.49
7.3.250.0080.01216.40
7.3.240.0070.01116.60
7.3.230.0040.01316.29
7.3.210.0030.01616.41
7.3.200.0100.00616.37
7.3.190.0140.00916.62
7.3.180.0100.00716.41
7.3.170.0110.00716.46
7.3.160.0090.00616.52
7.2.330.0070.01016.61
7.2.320.0140.00316.59
7.2.310.0060.01016.74
7.2.300.0070.01016.62
7.2.290.0110.00616.61
7.2.00.0040.00819.37
7.1.100.0070.00418.11
7.1.70.0000.00917.34
7.1.60.0600.01333.20
7.1.50.0470.01333.06
7.1.40.0670.02332.48
7.1.30.0570.01732.85
7.1.20.0670.01032.69
7.1.10.1400.00714.61
7.1.00.1170.01714.87
7.0.200.0800.00315.07
7.0.190.0570.00314.88
7.0.180.0370.01314.37
7.0.170.0630.00714.36
7.0.160.0570.01014.63
7.0.150.0870.01014.61
7.0.140.0500.01314.43
7.0.130.0800.01014.75
7.0.120.0830.01314.84
7.0.110.0370.01014.36
7.0.100.0530.01314.41
7.0.90.0430.01014.37
7.0.80.0530.01714.55
7.0.70.0500.00314.46
7.0.60.1100.01014.30
7.0.50.0400.00714.43
7.0.40.0500.01314.54
7.0.30.0300.01314.88
7.0.20.0400.01014.48
7.0.10.0400.00714.49
7.0.00.0330.01014.78

preferences:
55.27 ms | 401 KiB | 5 Q