3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array(0 => 100, "color" => "red"); $keys = array_keys($array); print_r($keys[2]); ?>

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)
8.3.60.0150.00016.50
8.3.50.0100.00922.93
8.3.40.0100.00718.91
8.3.30.0110.00318.82
8.3.20.0000.00820.26
8.3.10.0070.00023.52
8.3.00.0040.00419.38
8.2.180.0100.01316.75
8.2.170.0070.00722.96
8.2.160.0070.00720.39
8.2.150.0050.00324.18
8.2.140.0000.00824.66
8.2.130.0060.00626.16
8.2.120.0070.00021.04
8.2.110.0060.00320.46
8.2.100.0120.00017.91
8.2.90.0000.00719.13
8.2.80.0040.00417.97
8.2.70.0060.00617.50
8.2.60.0000.00817.92
8.2.50.0040.00418.07
8.2.40.0000.00718.09
8.2.30.0000.00718.04
8.2.20.0040.00417.66
8.2.10.0080.00018.01
8.2.00.0000.00717.69
8.1.280.0100.00725.92
8.1.270.0040.00423.97
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0040.00423.97
8.1.230.0040.00719.10
8.1.220.0080.00017.74
8.1.210.0080.00018.77
8.1.200.0060.00317.23
8.1.190.0040.00417.10
8.1.180.0040.00418.10
8.1.170.0050.00918.18
8.1.160.0000.00822.01
8.1.150.0050.00218.73
8.1.140.0050.00217.38
8.1.130.0000.00717.92
8.1.120.0000.00717.34
8.1.110.0020.00517.38
8.1.100.0040.00417.31
8.1.90.0040.00317.36
8.1.80.0000.00717.32
8.1.70.0040.00417.32
8.1.60.0030.00517.52
8.1.50.0050.00217.45
8.1.40.0040.00417.37
8.1.30.0030.00517.57
8.1.20.0000.00817.63
8.1.10.0070.00017.41
8.1.00.0030.00617.45
8.0.300.0000.00818.77
8.0.290.0040.00416.75
8.0.280.0050.00318.25
8.0.270.0000.00917.15
8.0.260.0000.00617.11
8.0.250.0040.00416.91
8.0.240.0040.00416.99
8.0.230.0030.00316.95
8.0.220.0030.00316.78
8.0.210.0040.00416.88
8.0.200.0060.00016.91
8.0.190.0000.00816.94
8.0.180.0070.00016.90
8.0.170.0000.00816.76
8.0.160.0000.00716.83
8.0.150.0000.00716.74
8.0.140.0000.00816.86
8.0.130.0070.00013.31
8.0.120.0030.00516.85
8.0.110.0000.00716.89
8.0.100.0070.00016.90
8.0.90.0030.00316.75
8.0.80.0120.00316.83
8.0.70.0000.00816.68
8.0.60.0040.00416.80
8.0.50.0040.00416.88
8.0.30.0080.01117.25
8.0.20.0060.01617.40
8.0.10.0050.00317.01
8.0.00.0150.00216.60
7.4.330.0000.00515.04
7.4.320.0030.00316.46
7.4.300.0030.00316.39
7.4.290.0030.00716.45
7.4.280.0040.00416.55
7.4.270.0000.00716.55
7.4.260.0000.00716.51
7.4.250.0040.00416.40
7.4.240.0070.00016.45
7.4.230.0030.00316.52
7.4.220.0030.01516.47
7.4.210.0070.00716.40
7.4.200.0000.00816.64
7.4.160.0110.00416.47
7.4.150.0060.01217.40
7.4.140.0050.01717.86
7.4.130.0110.00516.51
7.4.120.0070.00916.55
7.4.110.0080.00816.34
7.4.100.0100.00716.44
7.4.90.0040.01416.55
7.4.80.0140.00619.39
7.4.70.0110.00616.27
7.4.60.0070.01016.22
7.4.50.0050.00316.55
7.4.40.0070.01116.28
7.4.30.0090.00616.39
7.4.00.0030.00515.13
7.3.330.0000.00613.09
7.3.320.0050.00012.98
7.3.310.0000.00616.32
7.3.300.0060.00016.26
7.3.290.0030.00916.21
7.3.280.0090.00816.25
7.3.270.0170.00017.40
7.3.260.0070.01016.28
7.3.250.0080.00816.38
7.3.240.0090.01316.41
7.3.230.0140.00616.39
7.3.210.0000.01716.38
7.3.200.0140.00619.39
7.3.190.0110.00616.24
7.3.180.0030.01216.35
7.3.170.0150.00616.44
7.3.160.0100.00616.22
7.2.330.0110.00716.59
7.2.320.0090.01216.59
7.2.310.0100.00716.38
7.2.300.0090.00916.43
7.2.290.0030.01616.65
7.2.120.0310.01014.29
7.2.110.0340.01014.36
7.2.100.0590.00414.65
7.2.90.0670.00614.52
7.2.80.0670.00614.68
7.2.70.0720.00314.97
7.2.60.1130.00714.74
7.2.50.1300.00714.86
7.2.40.0760.00014.83
7.2.30.0470.00714.67
7.2.20.0510.00715.09
7.2.10.0560.00714.89
7.2.00.0200.01117.23
7.1.240.0570.00013.94
7.1.230.0760.00913.86
7.1.220.1220.00713.84
7.1.210.0180.00413.55
7.1.200.0720.00713.60
7.1.190.0520.00713.79
7.1.180.0570.00713.95
7.1.170.1130.00713.74
7.1.160.0750.01014.02
7.1.150.0830.00713.92
7.1.140.0460.00713.70
7.1.130.0660.00013.79
7.1.120.0980.00313.91
7.1.110.0430.01014.03
7.1.100.0220.01416.08
7.1.90.0310.00914.02
7.1.80.0450.00713.72
7.1.70.0260.00815.40
7.1.60.0370.01115.48
7.1.50.0270.01015.45
7.1.40.0280.01515.24
7.1.30.0350.00615.20
7.1.20.0210.01615.26
7.1.10.0180.01215.26
7.1.00.0200.00515.32
7.0.320.0240.00013.25
7.0.310.0730.00913.43
7.0.300.0770.00613.44
7.0.290.1350.00313.30
7.0.280.0490.00813.34
7.0.270.0600.00713.49
7.0.260.0580.00913.45
7.0.250.0510.00713.21
7.0.240.0580.00313.37
7.0.230.0550.00013.48
7.0.220.0330.01313.25
7.0.210.0770.00313.48
7.0.200.0280.00515.14
7.0.190.0330.00515.14
7.0.180.0170.01214.92
7.0.170.0220.01314.89
7.0.160.0160.01015.00
7.0.150.0280.00714.77
7.0.140.0220.00614.89
7.0.130.0280.00814.88
7.0.120.0200.01115.05
7.0.110.0180.01014.88
7.0.100.0190.00814.76
7.0.90.1400.00814.84
7.0.80.0290.00314.96
7.0.70.0200.00814.76
7.0.60.0220.01014.64
7.0.50.0200.00614.78
7.0.40.0170.01014.40
7.0.30.0240.00814.23
7.0.20.0180.00814.35
7.0.10.0110.01614.29
7.0.00.0160.00914.25
5.6.380.0060.00913.96
5.6.370.0130.01014.21
5.6.360.0100.01014.36
5.6.350.0160.00414.15
5.6.340.0180.00614.53
5.6.330.0180.00514.44
5.6.320.0120.01214.16
5.6.310.0110.01114.11
5.6.300.0120.02117.47
5.6.290.0080.02617.37
5.6.280.0080.02917.80
5.6.270.0000.03417.57
5.6.260.0080.03317.56
5.6.250.0120.02417.56
5.6.240.0220.02017.52
5.6.230.0060.02717.58
5.6.220.0120.02317.63
5.6.210.0070.04317.44
5.6.200.0040.05217.60
5.6.190.0100.02417.51
5.6.180.0100.02317.74
5.6.170.0060.02617.67
5.6.160.0120.02117.53
5.6.150.0120.02517.55
5.6.140.0050.03117.69
5.6.130.0080.02717.55
5.6.120.0080.02417.59
5.6.110.0060.02917.44
5.6.100.0110.02317.60
5.6.90.0100.02717.58
5.6.80.0100.02817.07
5.6.70.0100.02117.08
5.6.60.0070.02617.25
5.6.50.0090.02517.24
5.6.40.0080.02417.33
5.6.30.0030.03217.32
5.6.20.0060.03017.24
5.6.10.0050.02817.18
5.6.00.0090.02217.30
5.5.380.0100.02114.21
5.5.370.0110.02514.21
5.5.360.0070.04114.17
5.5.350.0080.02814.29
5.5.340.0050.02614.45
5.5.330.0060.03114.47
5.5.320.0050.02714.58
5.5.310.0130.01614.47
5.5.300.0050.02714.63
5.5.290.0070.02414.45
5.5.280.0080.04714.60
5.5.270.0090.02214.42
5.5.260.0080.02614.50
5.5.250.0080.02014.36
5.5.240.0070.03014.16
5.5.230.0070.02214.16
5.5.220.0100.01814.23
5.5.210.0110.01714.22
5.5.200.0070.02314.14
5.5.190.0050.02514.08
5.5.180.0080.02514.09
5.5.170.0050.01814.25
5.5.160.0030.02714.19
5.5.150.0050.02814.27
5.5.140.0040.02614.16
5.5.130.0090.02014.23
5.5.120.0200.01614.12
5.5.110.0070.02214.02
5.5.100.0070.02114.17
5.5.90.0060.02214.11
5.5.80.0110.01814.26
5.5.70.0080.01914.06
5.5.60.0080.03014.16
5.5.50.0030.02514.10
5.5.40.0100.01914.02
5.5.30.0030.02514.14
5.5.20.0040.02814.08
5.5.10.0080.02314.15
5.5.00.0040.02214.16
5.4.450.0060.02315.12
5.4.440.0060.02815.21
5.4.430.0140.02115.15
5.4.420.0130.02115.19
5.4.410.0070.04515.00
5.4.400.0050.02414.94
5.4.390.0050.02914.96
5.4.380.0060.02514.98
5.4.370.0090.02514.97
5.4.360.0020.03214.93
5.4.350.0040.02214.91
5.4.340.0060.02314.98
5.4.330.0120.00410.87
5.4.320.0080.02415.07
5.4.310.0060.02814.91
5.4.300.0050.02515.03
5.4.290.0120.02314.99
5.4.280.0060.02214.83
5.4.270.0090.02014.98
5.4.260.0100.01614.91
5.4.250.0080.01914.99
5.4.240.0090.02014.90
5.4.230.0020.03814.93
5.4.220.0050.02415.08
5.4.210.0070.02115.04
5.4.200.0080.02614.93
5.4.190.0060.02214.95
5.4.180.0050.02615.15
5.4.170.0070.02214.84
5.4.160.0060.02014.91
5.4.150.0060.02014.90
5.4.140.0070.04213.70
5.4.130.0080.02513.72
5.4.120.0060.02313.71
5.4.110.0070.02513.63
5.4.100.0100.01813.71
5.4.90.0160.02113.72
5.4.80.0040.02313.69
5.4.70.0090.01813.63
5.4.60.0050.02613.71
5.4.50.0050.02113.57
5.4.40.0050.02013.75
5.4.30.0020.02213.74
5.4.20.0080.02013.59
5.4.10.0070.01813.68
5.4.00.0030.02713.50
5.3.290.0060.02113.02
5.3.280.0060.02113.02
5.3.270.0000.02713.02
5.3.260.0100.02513.02
5.3.250.0050.02213.02
5.3.240.0000.04413.02
5.3.230.0040.02413.02
5.3.220.0040.02613.02
5.3.210.0050.02113.02
5.3.200.0040.02213.02
5.3.190.0130.02313.02
5.3.180.0100.02213.02
5.3.170.0070.02413.02
5.3.160.0050.02313.02
5.3.150.0090.02013.02
5.3.140.0050.02113.02
5.3.130.0070.01813.02
5.3.120.0070.02313.02
5.3.110.0040.02313.02
5.3.100.0090.01713.02
5.3.90.0060.02013.02
5.3.80.0030.02513.02
5.3.70.0060.01913.02
5.3.60.0110.01713.02
5.3.50.0050.03113.02
5.3.40.0100.01513.02
5.3.30.0060.01913.02
5.3.20.0030.02313.02
5.3.10.0050.02113.02
5.3.00.0040.02113.02
5.2.170.0040.02313.02
5.2.160.0040.02513.02
5.2.150.0050.02413.02
5.2.140.0070.01513.02
5.2.130.0070.01413.02
5.2.120.0110.02713.02
5.2.110.0040.01813.02
5.2.100.0040.01813.02
5.2.90.0060.01613.02
5.2.80.0040.01713.02
5.2.70.0140.01713.02
5.2.60.0040.02113.02
5.2.50.0070.01513.02
5.2.40.0050.01713.02
5.2.30.0080.02713.02
5.2.20.0050.01913.02
5.2.10.0050.02113.02
5.2.00.0070.01313.02
5.1.60.0040.01413.02
5.1.50.0050.01513.02
5.1.40.0020.01513.02
5.1.30.0050.01713.02
5.1.20.0060.01413.02
5.1.10.0070.03313.02
5.1.00.0060.01913.02
5.0.50.0060.01113.02
5.0.40.0060.02213.02
5.0.30.0050.01613.02
5.0.20.0020.01613.02
5.0.10.0040.03013.02
5.0.00.0060.02013.02
4.4.90.0030.00913.02
4.4.80.0040.01613.02
4.4.70.0040.00813.02
4.4.60.0050.01813.02
4.4.50.0030.01613.02
4.4.40.0020.01513.02
4.4.30.0020.01013.02
4.4.20.0040.01213.02
4.4.10.0040.01413.02
4.4.00.0010.01613.02
4.3.110.0030.01013.02
4.3.100.0050.01413.02
4.3.90.0000.01913.02
4.3.80.0070.01113.02
4.3.70.0020.01213.02
4.3.60.0020.00913.02
4.3.50.0040.01113.02
4.3.40.0000.01613.02
4.3.30.0040.01013.02
4.3.20.0050.01013.02
4.3.10.0020.01813.02
4.3.00.0030.01113.02

preferences:
39.7 ms | 400 KiB | 5 Q