3v4l.org

run code in 300+ PHP versions simultaneously
<?php for ( $i = 0; $i < 3000; $i++ ) { $test_array[ "key$i" ] = $i; } $test1 = $test_array; for ( $i = 0; $i < 3000; $i++ ) { $k = key($test1); $dummy = $test1[$k]; unset($test3[$k]); }

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)
8.3.60.0080.00816.75
8.3.50.0110.01121.90
8.3.40.0120.00319.04
8.3.30.0000.01519.46
8.3.20.0000.00820.29
8.3.10.0040.00421.98
8.3.00.0060.00319.50
8.2.180.0040.01118.55
8.2.170.0090.00619.27
8.2.160.0110.00722.96
8.2.150.0050.00324.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0080.00819.48
8.2.110.0030.00621.03
8.2.100.0060.00618.00
8.2.90.0030.00519.54
8.2.80.0000.00817.97
8.2.70.0060.00317.88
8.2.60.0040.00418.18
8.2.50.0000.00818.07
8.2.40.0000.00819.88
8.2.30.0030.00518.43
8.2.20.0080.00018.08
8.2.10.0040.00418.30
8.2.00.0030.00618.09
8.1.280.0120.00925.92
8.1.270.0040.00719.08
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0070.00318.08
8.1.230.0120.00018.04
8.1.220.0080.00018.04
8.1.210.0080.00018.77
8.1.200.0030.00717.60
8.1.190.0060.00317.48
8.1.180.0080.00018.10
8.1.170.0040.00418.86
8.1.160.0070.00022.30
8.1.150.0040.00419.14
8.1.140.0000.00717.66
8.1.130.0030.00318.22
8.1.120.0040.00417.66
8.1.110.0040.00417.73
8.1.100.0030.00517.65
8.1.90.0040.00417.79
8.1.80.0050.00217.71
8.1.70.0040.00417.75
8.1.60.0060.00617.76
8.1.50.0060.00317.82
8.1.40.0030.00617.72
8.1.30.0040.00417.91
8.1.20.0000.00817.86
8.1.10.0000.00817.77
8.1.00.0040.00417.88
8.0.300.0000.00718.77
8.0.290.0000.00716.75
8.0.280.0020.00518.55
8.0.270.0030.00517.49
8.0.260.0030.00717.45
8.0.250.0000.00717.27
8.0.240.0070.00017.18
8.0.230.0000.00717.29
8.0.220.0050.00317.19
8.0.210.0000.00817.25
8.0.200.0000.00617.17
8.0.190.0000.00917.18
8.0.180.0040.00417.11
8.0.170.0080.00017.16
8.0.160.0050.00217.15
8.0.150.0030.00517.21
8.0.140.0040.00417.16
8.0.130.0000.00913.66
8.0.120.0030.00617.13
8.0.110.0040.00417.19
8.0.100.0040.00417.13
8.0.90.0030.00516.98
8.0.80.0110.00717.16
8.0.70.0050.00316.95
8.0.60.0000.00816.96
8.0.50.0050.00317.06
8.0.30.0140.01717.15
8.0.20.0150.00917.40
8.0.10.0040.00417.07
8.0.00.0080.01517.03
7.4.330.0050.00015.03
7.4.320.0030.00316.66
7.4.300.0000.00716.68
7.4.290.0080.00016.68
7.4.280.0030.00616.61
7.4.270.0030.00316.77
7.4.260.0040.00416.55
7.4.250.0080.00016.62
7.4.240.0030.00516.69
7.4.230.0000.00716.60
7.4.220.0110.01116.83
7.4.210.0040.01216.70
7.4.200.0040.00416.87
7.4.160.0130.00616.71
7.4.150.0140.00817.40
7.4.140.0160.01717.86
7.4.130.0140.00916.81
7.4.120.0130.01216.58
7.4.110.0130.01016.71
7.4.100.0120.01516.55
7.4.90.0100.01016.86
7.4.80.0130.01019.39
7.4.70.0070.01416.70
7.4.60.0110.00716.71
7.4.50.0000.01016.71
7.4.40.0190.00616.73
7.4.30.0100.01316.89
7.4.00.0060.01315.24
7.3.330.0030.00313.41
7.3.320.0070.00713.62
7.3.310.0070.00016.57
7.3.300.0070.00016.60
7.3.290.0100.00716.58
7.3.280.0130.00616.59
7.3.270.0130.01317.40
7.3.260.0260.00016.79
7.3.250.0140.01116.66
7.3.240.0160.00816.63
7.3.230.0140.00916.78
7.3.210.0150.01316.86
7.3.200.0090.00919.39
7.3.190.0060.01316.56
7.3.180.0070.01316.55
7.3.170.0180.01316.46
7.3.160.0140.01816.54
7.2.330.0190.00316.71
7.2.320.0090.01516.85
7.2.310.0120.00916.99
7.2.300.0100.01616.73
7.2.290.0160.00617.05
7.2.60.0090.00617.02
7.2.00.0040.01119.46
7.1.200.0030.01015.87
7.1.100.0070.00717.68
7.1.70.0080.00017.08
7.1.60.0070.01319.50
7.1.50.0070.01016.79
7.1.00.0030.07722.42
7.0.200.0700.00015.10
7.0.140.0000.06722.04
7.0.60.0100.04020.34
7.0.50.0070.07718.10
7.0.40.0230.04019.79
7.0.30.0300.03019.98
7.0.20.0300.05019.81
7.0.10.0270.07319.71
7.0.00.0000.05019.84
5.6.280.0030.07721.62
5.6.210.0030.06321.36
5.6.200.0030.08018.82
5.6.190.0130.08021.03
5.6.180.0200.07021.12
5.6.170.0370.06021.05
5.6.160.0130.07721.02
5.6.150.0070.08318.94
5.6.140.0000.06018.93
5.6.130.0130.07318.92
5.6.120.0070.06721.75
5.6.110.0100.06021.87
5.6.100.0100.07721.84
5.6.90.0070.08721.75
5.6.80.0130.07021.04
5.6.70.0300.06721.10
5.5.350.0300.07321.05
5.5.340.0100.05718.70
5.5.330.0170.06320.91
5.5.320.0030.05320.88
5.5.310.0270.07720.98
5.5.300.0130.06318.64
5.5.290.0070.08018.69
5.5.280.0100.04721.64
5.5.270.0100.08321.63
5.5.260.0170.08021.62
5.5.250.0070.08021.25
5.5.240.0030.07720.91
5.4.450.0500.05020.09
5.4.440.0230.07719.90
5.4.430.0200.08320.04
5.4.420.0300.04019.89
5.4.410.0230.03720.09
5.4.400.0300.06019.41
5.4.390.0400.05319.44
5.4.380.0530.05719.43
5.4.370.0430.05019.46
5.4.360.0400.07719.43
5.4.350.0300.06319.32
5.4.340.0400.06719.26
5.4.320.0470.05019.41
5.4.310.0370.08719.27
5.4.300.0600.05319.41
5.4.290.0500.05719.41
5.4.280.0430.07719.22
5.4.270.0470.05719.40
5.4.260.0430.05019.43
5.4.250.0430.05719.43
5.4.240.0330.06719.40
5.4.230.0430.05019.38
5.4.220.0270.07319.23
5.4.210.0470.05019.41
5.4.200.0530.06017.21
5.4.190.0470.05719.44
5.4.180.0370.05319.41
5.4.170.0570.06319.41
5.4.160.0230.07319.32
5.4.150.0300.06319.40
5.4.140.0670.06316.91
5.4.130.0300.05716.94
5.4.120.0470.04316.97
5.4.110.0370.05316.94
5.4.100.0330.05716.79
5.4.90.0570.06017.09
5.4.80.0500.07016.88
5.4.70.0500.06017.01
5.4.60.0430.06716.87
5.4.50.0370.06316.73
5.4.40.0300.06716.97
5.4.30.0400.07016.98
5.4.20.0370.03717.11
5.4.10.0270.07317.12

preferences:
44.46 ms | 401 KiB | 5 Q