3v4l.org

run code in 500+ PHP versions simultaneously
<?php $array = array("FFF" => '1',22,54,75,"boo" => '90',364); $keys = array_keys($array); Var_dump($keys);

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)
8.5.30.0120.00519.58
8.5.20.0130.00920.15
8.5.10.0100.00816.58
8.5.00.0130.01019.94
8.4.180.0130.00925.77
8.4.170.0110.01022.17
8.4.160.0160.00523.87
8.4.150.0080.00316.80
8.4.140.0120.01017.60
8.4.130.0130.00618.92
8.4.120.0120.00824.04
8.4.110.0120.00720.53
8.4.100.0140.00718.80
8.4.90.0040.00422.40
8.4.80.0120.00718.78
8.4.70.0090.00617.82
8.4.60.0060.00418.83
8.4.50.0100.01117.74
8.4.40.0070.00724.12
8.4.30.0160.00319.59
8.4.20.0060.01317.23
8.4.10.0080.00019.31
8.3.300.0120.00920.41
8.3.290.0140.00720.72
8.3.280.0110.01018.39
8.3.270.0130.00716.73
8.3.260.0120.00716.50
8.3.250.0100.00918.92
8.3.240.0120.00617.13
8.3.230.0050.00316.38
8.3.220.0120.00718.79
8.3.210.0150.00516.29
8.3.200.0120.00716.73
8.3.190.0120.00918.63
8.3.180.0130.00518.16
8.3.170.0120.00616.75
8.3.160.0070.01116.62
8.3.150.0120.00619.08
8.3.140.0040.00420.66
8.3.130.0120.00616.63
8.3.120.0000.00918.79
8.3.110.0080.00020.94
8.3.100.0060.00324.06
8.3.90.0070.01126.77
8.3.80.0040.00419.36
8.3.70.0120.00418.27
8.3.60.0120.00916.63
8.3.50.0090.00916.66
8.3.40.0000.01518.62
8.3.30.0120.00318.59
8.3.20.0040.00420.34
8.3.10.0040.00421.77
8.3.00.0040.00417.19
8.2.300.0140.00517.94
8.2.290.0090.01020.42
8.2.280.0110.00818.23
8.2.270.0150.00316.36
8.2.260.0080.00017.05
8.2.250.0000.00816.46
8.2.240.0060.00318.75
8.2.230.0060.00322.58
8.2.220.0040.00437.54
8.2.210.0060.00326.77
8.2.200.0060.00318.88
8.2.190.0110.00316.58
8.2.180.0090.00616.38
8.2.170.0100.01022.96
8.2.160.0090.00620.29
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0040.00422.13
8.2.120.0040.00426.35
8.2.110.0100.00319.30
8.2.100.0040.00817.97
8.2.90.0040.00419.25
8.2.80.0040.00417.97
8.2.70.0110.00417.25
8.2.60.0030.00617.93
8.2.50.0020.00518.10
8.2.40.0040.00422.18
8.2.30.0050.00319.25
8.2.20.0070.00317.87
8.2.10.0000.00717.93
8.2.00.0040.00418.04
8.1.340.0100.00921.46
8.1.330.0090.01021.89
8.1.320.0120.00715.89
8.1.310.0040.01416.75
8.1.300.0080.00019.54
8.1.290.0060.00330.84
8.1.280.0120.00625.92
8.1.270.0040.00423.92
8.1.260.0070.00026.35
8.1.250.0080.00028.09
8.1.240.0090.00023.99
8.1.230.0120.00317.42
8.1.220.0040.00417.74
8.1.210.0030.00618.77
8.1.200.0060.00317.38
8.1.190.0000.00917.09
8.1.180.0050.00318.10
8.1.170.0000.00918.37
8.1.160.0000.00719.01
8.1.150.0030.00520.67
8.1.140.0050.00219.57
8.1.130.0030.00318.74
8.1.120.0040.00417.38
8.1.110.0040.00417.39
8.1.100.0050.00317.39
8.1.90.0080.00017.38
8.1.80.0000.00817.21
8.1.70.0070.00017.36
8.1.60.0040.00717.53
8.1.50.0040.00417.39
8.1.40.0040.00417.49
8.1.30.0030.00617.61
8.1.20.0040.00417.62
8.1.10.0000.00817.45
8.1.00.0070.00017.38
8.0.300.0050.00318.77
8.0.290.0040.00416.58
8.0.280.0030.00318.39
8.0.270.0000.00717.10
8.0.260.0030.00316.72
8.0.250.0000.00716.92
8.0.240.0000.00716.83
8.0.230.0030.00316.77
8.0.220.0030.00316.83
8.0.210.0000.00716.79
8.0.200.0030.00316.75
8.0.190.0040.00416.85
8.0.180.0040.00416.89
8.0.170.0070.00016.91
8.0.160.0040.00316.78
8.0.150.0000.00816.79
8.0.140.0040.00416.81
8.0.130.0000.00613.32
8.0.120.0060.00316.82
8.0.110.0000.00716.71
8.0.100.0020.00516.63
8.0.90.0030.00616.79
8.0.80.0090.00616.89
8.0.70.0040.00416.77
8.0.60.0040.00416.70
8.0.50.0070.00016.77
8.0.30.0150.00717.13
8.0.20.0090.00917.40
8.0.10.0000.00716.98
8.0.00.0080.00816.82
7.4.330.0050.00015.55
7.4.320.0000.00616.49
7.4.300.0030.00316.42
7.4.290.0030.00316.54
7.4.280.0040.00416.48
7.4.270.0080.00016.55
7.4.260.0030.00316.38
7.4.250.0040.00416.50
7.4.240.0060.00316.58
7.4.230.0000.00716.64
7.4.220.0060.01216.55
7.4.210.0080.00916.48
7.4.200.0000.00716.61
7.4.160.0090.00716.64
7.4.150.0130.00417.40
7.4.140.0100.00817.86
7.4.130.0040.01316.56
7.4.120.0110.00816.40
7.4.110.0060.01316.41
7.4.100.0140.00416.32
7.4.90.0100.00716.45
7.4.80.0090.00819.39
7.4.70.0100.00616.39
7.4.60.0030.01316.28
7.4.50.0030.01316.42
7.4.40.0040.01916.52
7.4.30.0080.00816.61
7.4.00.0030.01014.75
7.3.330.0000.00512.99
7.3.320.0060.00013.08
7.3.310.0040.00416.27
7.3.300.0030.00316.13
7.3.290.0030.01116.14
7.3.280.0060.00916.13
7.3.270.0170.00017.40
7.3.260.0120.00516.26
7.3.250.0120.00516.23
7.3.240.0060.01316.20
7.3.230.0090.01616.12
7.3.210.0090.00916.33
7.3.200.0100.00716.06
7.3.190.0060.00916.28
7.3.180.0030.01216.13
7.3.170.0110.00516.48
7.3.160.0100.00716.14
7.2.330.0030.01816.56
7.2.320.0080.00816.23
7.2.310.0060.01016.46
7.2.300.0110.01116.32
7.2.290.0070.01016.22
7.2.60.0060.00916.66
7.2.00.0030.00718.89
7.1.200.0090.00315.69
7.1.100.0000.01318.26
7.1.70.0040.01217.06
7.1.60.0260.01134.86
7.1.50.0250.00334.84
7.1.40.0190.01234.33
7.1.30.0140.02034.30
7.1.20.0200.01334.38
7.1.10.0030.01316.50
7.1.00.0070.00716.34
7.0.200.0080.00916.40
7.0.190.0060.00916.57
7.0.180.0000.01616.39
7.0.170.0070.01016.21
7.0.160.0090.00616.12
7.0.150.0100.00716.09
7.0.140.0090.01116.15
7.0.130.0070.00716.47
7.0.120.0040.01016.30
7.0.110.0040.01116.22
7.0.100.0080.01116.37
7.0.90.0040.01116.09
7.0.80.0050.01116.20
7.0.70.0030.00916.38
7.0.60.0070.00716.02
7.0.50.0060.01016.33
7.0.40.0000.01416.63
7.0.30.0070.01016.48
7.0.20.0040.01016.29
7.0.10.0030.01016.40
7.0.00.0050.01116.39

preferences:
46.09 ms | 1467 KiB | 5 Q