3v4l.org

run code in 300+ PHP versions simultaneously
<?php $command = ['one'=>1,"two"=>2,"three"=>3]; $keys = array_keys($command); var_dump(array_pop(array_keys($command))); echo "\n\n\n\n"; var_dump(array_pop($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)
8.4.140.0100.01017.61
8.4.130.0100.00817.65
8.4.120.0120.00920.62
8.4.110.0110.01022.59
8.4.100.0080.00817.89
8.4.90.0120.00818.56
8.4.80.0090.01117.90
8.4.70.0060.00719.53
8.4.60.0130.00917.83
8.4.50.0100.01018.62
8.4.40.0060.00319.32
8.4.30.0060.00320.75
8.4.20.0110.01117.92
8.4.10.0000.00920.62
8.3.270.0120.00716.59
8.3.260.0110.00916.46
8.3.250.0110.00718.76
8.3.240.0040.00416.57
8.3.230.0150.00416.76
8.3.220.0110.00417.18
8.3.210.0160.00716.61
8.3.200.0120.00816.88
8.3.190.0150.00418.65
8.3.180.0080.01016.73
8.3.170.0150.00318.68
8.3.160.0100.01016.61
8.3.150.0060.01217.07
8.3.140.0040.01416.52
8.3.130.0030.00618.59
8.3.120.0050.00319.04
8.3.110.0000.00720.94
8.3.100.0080.00024.06
8.3.90.0090.00026.77
8.3.80.0100.00019.36
8.3.70.0070.00716.58
8.3.60.0150.00018.55
8.3.50.0120.00623.66
8.3.40.0110.00718.59
8.3.30.0090.00618.84
8.3.20.0040.00424.18
8.3.10.0040.00424.66
8.3.00.0090.00026.16
8.2.290.0090.00320.36
8.2.280.0080.01016.87
8.2.270.0110.00717.19
8.2.260.0070.00016.72
8.2.250.0070.00016.90
8.2.240.0060.00317.08
8.2.230.0060.00322.58
8.2.220.0060.00337.54
8.2.210.0090.00626.77
8.2.200.0030.00618.88
8.2.190.0140.00716.58
8.2.180.0030.01025.92
8.2.170.0120.00319.04
8.2.160.0160.00322.96
8.2.150.0040.00425.66
8.2.140.0000.00824.66
8.2.130.0070.00026.16
8.2.120.0040.00426.35
8.2.110.0070.00322.08
8.2.100.0040.00817.72
8.2.90.0040.00417.59
8.2.80.0030.00518.68
8.2.70.0080.00017.50
8.2.60.0030.00517.50
8.2.50.0030.00618.05
8.2.40.0090.00018.03
8.2.30.0040.00417.99
8.2.20.0050.00217.97
8.2.10.0040.00419.28
8.2.00.0040.00419.29
8.1.330.0110.00821.85
8.1.320.0100.00816.28
8.1.310.0120.00616.33
8.1.300.0080.00020.02
8.1.290.0000.00930.84
8.1.280.0120.00325.92
8.1.270.0000.00823.99
8.1.260.0040.00428.09
8.1.250.0070.00028.09
8.1.240.0110.00022.13
8.1.230.0040.00722.71
8.1.220.0000.00817.74
8.1.210.0050.00518.77
8.1.200.0040.00417.23
8.1.190.0030.00517.10
8.1.180.0000.00718.10
8.1.170.0000.00720.49
8.1.160.0000.00918.82
8.1.150.0030.00318.82
8.1.140.0040.00418.82
8.1.130.0000.00820.07
8.1.120.0030.00617.37
8.1.110.0000.00817.39
8.1.100.0070.00017.37
8.1.90.0040.00417.40
8.1.80.0030.00317.39
8.1.70.0050.00317.38
8.1.60.0060.00317.54
8.1.50.0050.00217.29
8.1.40.0040.00417.46
8.1.30.0060.00617.50
8.1.20.0040.00417.51
8.1.10.0040.00417.51
8.1.00.0030.00617.46
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0030.00318.42
8.0.270.0030.00317.97
8.0.260.0000.00618.59
8.0.250.0000.00816.86
8.0.240.0030.00316.93
8.0.230.0000.00916.88
8.0.220.0000.00716.81
8.0.210.0000.00716.84
8.0.200.0000.00716.86
8.0.190.0040.00416.83
8.0.180.0030.00316.91
8.0.170.0030.00516.94
8.0.160.0050.00216.98
8.0.150.0040.00416.83
8.0.140.0050.00216.86
8.0.130.0050.00013.27
8.0.120.0000.00816.83
8.0.110.0030.00316.94
8.0.100.0000.00716.86
8.0.90.0070.00016.93
8.0.80.0070.00816.84
8.0.70.0040.00416.93
8.0.60.0040.00416.72
8.0.50.0040.00416.87
8.0.30.0110.00516.93
8.0.20.0100.01016.92
8.0.10.0070.01216.89
8.0.00.0300.02217.15
7.4.330.0030.00315.55
7.4.320.0030.00316.50
7.4.300.0030.00316.33
7.4.290.0000.00716.21
7.4.280.0050.00316.38
7.4.270.0030.00316.47
7.4.260.0000.00513.13
7.4.250.0070.00016.29
7.4.240.0030.00316.45
7.4.230.0000.00716.60
7.4.220.0050.00216.35
7.4.210.0020.01216.52
7.4.200.0030.00316.55
7.4.140.0320.03716.39
7.4.130.0390.01716.51
7.4.120.0060.01716.35
7.4.110.0120.00816.37
7.4.100.0140.00416.36
7.4.90.0120.00816.40
7.4.80.0120.00616.42
7.4.70.0120.00916.24
7.4.60.0120.01216.41
7.4.50.0110.00816.38
7.4.40.0060.01316.52
7.4.30.0130.00616.47
7.4.20.0250.01116.45
7.4.10.0200.00716.28
7.4.00.0100.01016.53
7.3.330.0030.00316.31
7.3.320.0000.00713.08
7.3.310.0070.00016.20
7.3.300.0000.00616.09
7.3.290.0040.01216.23
7.3.260.0120.00616.26
7.3.250.0350.01516.46
7.3.240.0280.01616.44
7.3.230.0260.01816.42
7.3.220.0080.01116.27
7.3.210.0160.00616.30
7.3.200.0170.01516.29
7.3.190.0190.00016.35
7.3.180.0120.00316.36
7.3.170.0100.00516.44
7.3.160.0110.00716.25
7.3.150.0110.00916.20
7.3.140.0140.00416.30
7.3.130.0120.00616.28
7.3.120.0080.00816.31
7.3.110.0100.00716.27
7.3.100.0070.01116.27
7.3.90.0110.00716.28
7.3.80.0100.00716.25
7.3.70.0090.00916.18
7.3.60.0130.00316.26
7.3.50.0070.01016.32
7.3.40.0090.01016.32
7.3.30.0030.01316.14
7.3.20.0160.00316.24
7.3.10.0040.01416.17
7.3.00.0200.01516.24

preferences:
37.57 ms | 403 KiB | 5 Q