3v4l.org

run code in 300+ PHP versions simultaneously
<?php for ( $i = 0; $i < 9000; $i++ ) { $test_array[ "key$i" ] = $i; } $test1 = $test_array; for ( $i = 0; $i < 9000; $i++ ) { $k = key($test1); $dummy = $test1[$k]; unset($test1[$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)
8.3.40.0140.01120.09
8.3.30.0070.01020.46
8.3.20.0060.00321.71
8.3.10.0090.00023.30
8.3.00.0050.00521.54
8.2.170.0170.00722.96
8.2.160.0100.00722.07
8.2.150.0090.00024.18
8.2.140.0060.00324.66
8.2.130.0050.00326.16
8.2.120.0060.00321.40
8.2.110.0070.00423.28
8.2.100.0070.00719.22
8.2.90.0000.00920.67
8.2.80.0030.00719.00
8.2.70.0070.00419.25
8.2.60.0070.00319.55
8.2.50.0030.00719.00
8.2.40.0030.00719.84
8.2.30.0060.00319.41
8.2.20.0030.00619.09
8.2.10.0100.00019.40
8.2.00.0070.00318.98
8.1.270.0030.00620.36
8.1.260.0040.00426.35
8.1.250.0060.00328.09
8.1.240.0000.01022.25
8.1.230.0090.00319.01
8.1.220.0030.00619.16
8.1.210.0080.00318.77
8.1.200.0070.00318.97
8.1.190.0050.00518.63
8.1.180.0070.00319.03
8.1.170.0000.00919.87
8.1.160.0000.00923.46
8.1.150.0060.00320.34
8.1.140.0090.00018.90
8.1.130.0040.00419.27
8.1.120.0000.00918.79
8.1.110.0030.00618.67
8.1.100.0060.00318.76
8.1.90.0030.00618.74
8.1.80.0000.00918.67
8.1.70.0030.00618.63
8.1.60.0060.00918.95
8.1.50.0030.00718.72
8.1.40.0030.00718.82
8.1.30.0060.00318.95
8.1.20.0050.00518.95
8.1.10.0000.00918.90
8.1.00.0070.00418.85
8.0.300.0060.00318.77
8.0.290.0090.00018.13
8.0.280.0060.00319.63
8.0.270.0030.00618.40
8.0.260.0110.00018.44
8.0.250.0040.00418.18
8.0.240.0060.00318.20
8.0.230.0030.00618.26
8.0.220.0060.00318.04
8.0.210.0030.00617.97
8.0.200.0090.00018.10
8.0.190.0070.00318.18
8.0.180.0040.00418.05
8.0.170.0030.00618.03
8.0.160.0030.00618.17
8.0.150.0000.01018.00
8.0.140.0000.00918.14
8.0.130.0070.00414.60
8.0.120.0030.00718.13
8.0.110.0060.00317.99
8.0.100.0060.00318.07
8.0.90.0030.00717.95
8.0.80.0080.01118.06
8.0.70.0060.00317.92
8.0.60.0050.00518.07
8.0.50.0090.00018.04
8.0.30.0160.01418.35
8.0.20.0130.00918.05
8.0.10.0030.00618.09
8.0.00.0060.01717.99
7.4.330.0040.00416.96
7.4.320.0040.00417.82
7.4.300.0050.00317.75
7.4.290.0000.00917.78
7.4.280.0000.01017.68
7.4.270.0000.00817.80
7.4.260.0060.00317.69
7.4.250.0030.00617.75
7.4.240.0050.00417.71
7.4.230.0070.00317.82
7.4.220.0160.00617.79
7.4.210.0150.00317.80
7.4.200.0050.00517.53
7.4.160.0080.01117.73
7.4.150.0030.01917.84
7.4.140.0080.01317.86
7.4.130.0120.01117.70
7.4.120.0070.01817.80
7.4.110.0190.00317.75
7.4.100.0140.00717.59
7.4.90.0100.01017.75
7.4.80.0070.01619.39
7.4.70.0140.00717.82
7.4.60.0100.00917.72
7.4.50.0000.01017.71
7.4.40.0060.01317.61
7.4.30.0000.02017.79
7.4.00.0000.01915.97
7.3.330.0000.00614.39
7.3.320.0070.00714.58
7.3.310.0040.00417.36
7.3.300.0060.00317.55
7.3.290.0130.00717.54
7.3.280.0060.01417.53
7.3.270.0170.00317.57
7.3.260.0180.00917.47
7.3.250.0100.01017.52
7.3.240.0080.01417.63
7.3.230.0090.01617.59
7.3.210.0060.01317.54
7.3.200.0120.00919.39
7.3.190.0180.00917.63
7.3.180.0170.00717.59
7.3.170.0060.01617.52
7.3.160.0230.00317.70
7.3.120.0150.00616.30
7.3.110.0060.01316.16
7.3.100.0030.01316.04
7.3.90.0100.00315.80
7.3.80.0030.01316.03
7.3.70.0050.00815.73
7.3.60.0000.01115.79
7.3.50.0030.01316.23
7.3.40.0030.01316.13
7.3.30.0030.00916.16
7.3.20.0060.01018.54
7.3.10.0080.00718.72
7.3.00.0030.01118.68
7.2.330.0140.00717.73
7.2.320.0170.00417.74
7.2.310.0030.01717.57
7.2.300.0120.00917.79
7.2.290.0120.00917.80
7.2.240.0030.02016.03
7.2.230.0060.01016.28
7.2.220.0090.00616.35
7.2.210.0060.00915.97
7.2.200.0040.01516.39
7.2.190.0030.01415.90
7.2.180.0070.01416.21
7.2.170.0070.01016.36
7.2.160.0030.00916.14
7.2.150.0120.00619.03
7.2.140.0040.00819.04
7.2.130.0070.00718.86
7.2.120.0070.01118.86
7.2.110.0070.01118.71
7.2.100.0080.01218.88
7.2.90.0070.00818.85
7.2.80.0050.00918.87
7.2.70.0050.01318.95
7.2.60.0030.01318.93
7.2.50.0050.01118.98
7.2.40.0120.00519.00
7.2.30.0050.01118.94
7.2.20.0100.00618.92
7.2.10.0080.01019.06
7.2.00.0050.01119.70
7.1.330.0150.00317.79
7.1.320.0070.01317.83
7.1.310.0030.01617.63
7.1.300.0080.00417.55
7.1.290.0060.00617.93
7.1.280.0030.01217.76
7.1.270.0100.01017.55
7.1.260.0060.00617.78
7.1.250.0070.01117.69
7.1.200.0030.01017.54
7.1.100.0100.00620.23
7.1.70.0050.00519.07
7.1.60.0070.02119.50
7.1.50.0070.02118.49
7.1.00.0070.07724.48
7.0.200.0840.00015.91
7.0.140.0070.07324.13
7.0.60.0030.05321.21
7.0.50.0100.04718.87
7.0.40.0070.08720.06
7.0.30.0270.05720.17
7.0.20.0300.07720.16
7.0.10.0230.08320.21
7.0.00.0070.04320.01
5.6.280.0130.07323.19
5.6.210.0070.09722.80
5.6.200.0030.06320.40
5.6.190.0030.05722.47
5.6.180.0370.08022.64
5.6.170.0400.06022.59
5.6.160.0070.04322.56
5.6.150.0170.03320.34
5.6.140.0070.09720.39
5.6.130.0030.04720.48
5.6.120.0100.05323.46
5.6.110.0070.09323.43
5.6.100.0100.06323.32
5.6.90.0070.08023.30
5.6.80.0100.08322.75
5.6.70.0270.06722.81
5.5.350.0100.04322.63
5.5.340.0000.05020.28
5.5.330.0000.06722.61
5.5.320.0030.05022.44
5.5.310.0100.05322.39
5.5.300.0130.04020.20
5.5.290.0070.07320.25
5.5.280.0030.07723.20
5.5.270.0100.08323.18
5.5.260.0100.05723.18
5.5.250.0070.09023.00
5.5.240.0100.04322.54
5.4.450.0200.06021.70
5.4.440.0430.08721.86
5.4.430.0800.08321.82
5.4.420.0970.10021.71
5.4.410.0130.05721.27
5.4.400.0430.06021.05
5.4.390.0430.06020.96
5.4.380.0470.06721.02
5.4.370.0500.06720.79
5.4.360.0330.06720.80
5.4.350.0330.06320.89
5.4.340.0470.07720.97
5.4.320.0400.05720.96
5.4.310.0400.07020.86
5.4.300.0500.05321.02
5.4.290.0370.06020.99
5.4.280.0370.07720.96
5.4.270.0300.06721.01
5.4.260.0400.05721.00
5.4.250.0570.07320.96
5.4.240.0500.08320.82
5.4.230.0400.06320.97
5.4.220.0300.09020.97
5.4.210.0330.07020.87
5.4.200.0330.06718.65
5.4.190.0570.08320.95
5.4.180.0330.06720.79
5.4.170.0470.05320.94
5.4.160.0430.06720.78
5.4.150.0330.06720.91
5.4.140.0370.07318.40
5.4.130.0330.06718.42
5.4.120.0430.05318.66
5.4.110.0400.06718.45
5.4.100.0230.06718.38
5.4.90.0370.06718.46
5.4.80.0270.09318.53
5.4.70.0400.05718.52
5.4.60.0300.06318.36
5.4.50.0430.05718.46
5.4.40.0370.05718.44
5.4.30.0270.06018.59
5.4.20.0230.06718.42
5.4.10.0270.08318.53
5.4.00.0430.07717.98
5.3.290.0300.07016.53
5.3.280.0270.07316.39
5.3.270.0330.06716.45
5.3.260.0400.07016.50
5.3.250.0330.05716.45
5.3.240.0370.05716.57
5.3.230.0430.05716.43
5.3.220.0370.06016.45
5.3.210.0270.07016.36
5.3.200.0300.06716.45
5.3.190.0400.05716.32
5.3.180.0370.08316.52
5.3.170.0270.07716.41
5.3.160.0570.06716.49
5.3.150.0330.07016.43
5.3.140.0430.06316.45
5.3.130.0430.06316.42
5.3.120.0370.06716.41
5.3.110.0300.07716.50
5.3.100.0430.07715.85
5.3.90.0330.08015.88
5.3.80.0300.06715.82
5.3.70.0500.06015.93
5.3.60.0530.07015.91
5.3.50.0470.07715.87
5.3.40.0400.09016.25
5.3.30.0400.09015.69
5.3.20.0470.06715.58
5.3.10.0370.09315.38
5.3.00.0430.08015.53
5.2.170.0300.05313.11
5.2.160.0400.06712.94
5.2.150.0300.07312.93
5.2.140.0400.06712.98
5.2.130.0330.05012.87
5.2.120.0370.04712.89
5.2.110.0230.06012.88
5.2.100.0370.05312.87
5.2.90.0300.04713.06
5.2.80.0400.04712.87
5.2.70.0270.05312.87
5.2.60.0400.05312.99
5.2.50.0430.05312.76
5.2.40.0330.05312.78
5.2.30.0400.04312.83
5.2.20.0300.04312.84
5.2.10.0200.05312.74
5.2.00.0230.05712.55
5.1.60.0230.04712.49
5.1.50.0330.06712.63
5.1.40.0330.06012.46
5.1.30.0270.05013.00
5.1.20.0400.04313.02
5.1.10.0430.05712.53
5.1.00.0370.04312.61
5.0.50.0130.06011.20
5.0.40.0130.04710.91
5.0.30.0130.06710.79
5.0.20.0130.07010.77
5.0.10.0200.04310.71
5.0.00.0100.07710.75
4.4.90.0170.0438.49
4.4.80.0200.0438.40
4.4.70.0130.0538.35
4.4.60.0100.0638.42
4.4.50.0130.0408.46
4.4.40.0170.0608.43
4.4.30.0270.0408.41
4.4.20.0200.0578.50
4.4.10.0170.0438.50
4.4.00.0100.0778.48
4.3.110.0130.0438.36
4.3.100.0170.0408.34
4.3.90.0070.0538.45
4.3.80.0130.0538.30
4.3.70.0130.0408.31
4.3.60.0070.0578.40
4.3.50.0230.0338.32
4.3.40.0200.0508.29
4.3.30.0070.0577.11
4.3.20.0070.0577.14
4.3.10.0070.0577.09
4.3.00.0030.0437.15

preferences:
48.62 ms | 400 KiB | 5 Q