3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(array_keys(array('a' => 1, 'b' => 2, 'c' => 3)));

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)
8.3.40.0070.00718.45
8.3.30.0070.00720.22
8.3.20.0000.00818.52
8.3.10.0000.00820.79
8.3.00.0090.00022.35
8.2.170.0120.00922.96
8.2.160.0100.00320.44
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0040.00421.19
8.2.110.0060.00320.93
8.2.100.0080.00417.78
8.2.90.0070.00319.10
8.2.80.0040.00417.80
8.2.70.0030.00617.47
8.2.60.0050.00317.55
8.2.50.0000.00818.07
8.2.40.0040.00418.09
8.2.30.0040.00417.91
8.2.20.0000.00817.57
8.2.10.0070.00017.54
8.2.00.0080.00017.48
8.1.270.0040.00423.99
8.1.260.0050.00326.35
8.1.250.0080.00028.09
8.1.240.0100.00022.58
8.1.230.0070.00321.04
8.1.220.0050.00317.74
8.1.210.0000.00818.77
8.1.200.0000.00817.25
8.1.190.0000.00817.28
8.1.180.0030.00618.10
8.1.170.0000.00818.84
8.1.160.0000.00718.69
8.1.150.0000.00818.46
8.1.140.0030.00517.23
8.1.130.0030.00317.65
8.1.120.0070.00017.21
8.1.110.0000.00817.30
8.1.100.0000.00817.34
8.1.90.0040.00417.30
8.1.80.0030.00517.31
8.1.70.0040.00417.31
8.1.60.0040.00417.32
8.1.50.0040.00417.29
8.1.40.0050.00317.37
8.1.30.0030.00517.40
8.1.20.0030.00517.40
8.1.10.0000.00817.36
8.1.00.0020.00517.33
8.0.300.0000.00719.85
8.0.290.0080.00016.63
8.0.280.0030.00318.32
8.0.270.0000.00717.03
8.0.260.0030.00316.55
8.0.250.0000.00716.83
8.0.240.0040.00416.82
8.0.230.0030.00316.80
8.0.220.0000.00716.59
8.0.210.0050.00216.64
8.0.200.0000.00616.73
8.0.190.0070.00016.81
8.0.180.0030.00516.84
8.0.170.0000.00716.76
8.0.160.0030.00516.71
8.0.150.0000.00716.67
8.0.140.0050.00316.70
8.0.130.0030.00313.18
8.0.120.0030.00516.67
8.0.110.0000.00716.73
8.0.100.0050.00216.65
8.0.90.0040.00416.63
8.0.80.0000.01516.79
8.0.70.0000.00716.62
8.0.60.0030.00516.61
8.0.50.0000.00816.54
8.0.30.0080.01016.97
8.0.20.0080.01017.40
8.0.10.0040.00416.95
8.0.00.0120.00916.65
7.4.330.0020.00216.78
7.4.320.0000.00816.37
7.4.300.0060.00016.26
7.4.290.0030.00316.46
7.4.280.0020.00516.42
7.4.270.0060.00016.36
7.4.260.0030.00313.11
7.4.250.0050.00216.43
7.4.240.0040.00416.50
7.4.230.0040.00416.56
7.4.220.0130.01516.28
7.4.210.0070.00916.43
7.4.200.0060.00016.36
7.4.190.0000.00716.34
7.4.160.0180.00316.11
7.4.150.0150.00917.40
7.4.140.0120.00617.86
7.4.130.0110.00616.28
7.4.120.0090.00816.29
7.4.110.0080.00816.38
7.4.100.0160.00616.42
7.4.90.0090.00916.24
7.4.80.0160.00319.39
7.4.70.0060.01216.50
7.4.60.0100.01316.31
7.4.50.0000.00816.22
7.4.40.0100.00322.77
7.4.30.0060.00916.34
7.4.00.0030.01014.72
7.3.330.0050.00012.86
7.3.320.0000.00512.91
7.3.310.0000.00715.93
7.3.300.0040.00416.05
7.3.290.0080.00616.10
7.3.280.0040.01116.09
7.3.270.0000.01717.40
7.3.260.0130.00718.24
7.3.250.0090.00916.26
7.3.240.0130.00416.07
7.3.230.0170.00616.39
7.3.210.0140.00416.30
7.3.200.0170.00619.39
7.3.190.0060.01616.17
7.3.180.0040.01116.40
7.3.170.0030.01216.40
7.3.160.0130.00316.09
7.3.120.0070.00714.78
7.2.330.0130.01016.33
7.2.320.0030.01416.26
7.2.310.0100.01316.10
7.2.300.0080.00816.18
7.2.290.0140.00616.26
7.2.80.0000.00816.55
7.2.60.0000.00716.69
7.2.50.0060.00916.76
7.2.00.0030.01019.09
7.1.200.0000.01115.29
7.1.100.0120.00017.85
7.1.70.0000.00716.87
7.1.60.0120.01219.17
7.1.50.0080.01216.73
7.1.00.0030.03322.30
7.0.200.0070.01016.55
7.0.140.0100.06322.09
7.0.100.0070.08319.96
7.0.90.0070.05319.95
7.0.80.0070.07019.94
7.0.70.0100.06019.94
7.0.60.0100.04320.01
7.0.50.0570.06320.14
7.0.40.0100.08720.11
7.0.30.0130.07720.02
7.0.20.0000.08320.10
7.0.10.0030.05720.09
7.0.00.0030.07320.13
5.6.280.0000.07721.05
5.6.250.0030.08020.71
5.6.240.0170.06720.62
5.6.230.0100.04720.65
5.6.220.0230.06320.52
5.6.210.0100.07720.48
5.6.200.0030.05021.10
5.6.190.0000.08320.99
5.6.180.0230.06321.18
5.6.170.0100.07321.16
5.6.160.0070.07021.16
5.6.150.0170.07721.00
5.6.140.0170.04721.01
5.6.130.0030.05721.09
5.6.120.0070.05321.00
5.6.110.0000.08321.10
5.6.100.0030.08721.06
5.6.90.0100.04721.03
5.6.80.0170.05020.33
5.6.70.0000.04720.51
5.6.60.0070.07720.38
5.6.50.0130.06720.42
5.6.40.0070.07320.36
5.6.30.0100.07720.52
5.6.20.0070.07720.51
5.6.10.0170.03320.45
5.6.00.0130.07020.34
5.5.380.0070.06320.34
5.5.370.0070.08020.36
5.5.360.0070.08720.33
5.5.350.0170.07720.44
5.5.340.0130.04720.92
5.5.330.0170.07320.78
5.5.320.0170.04320.77
5.5.310.0130.07720.78
5.5.300.0030.05720.86
5.5.290.0030.09320.78
5.5.280.0300.04320.89
5.5.270.0100.04320.78
5.5.260.0170.07020.79
5.5.250.0000.09020.44
5.5.240.0130.07320.25
5.5.230.0070.04720.16
5.5.220.0100.07320.14
5.5.210.0030.08020.16
5.5.200.0070.05320.19
5.5.190.0170.06020.18
5.5.180.0170.07020.26
5.5.160.0170.06720.12
5.5.150.0100.06720.17
5.5.140.0100.06320.11
5.5.130.0100.07020.25
5.5.120.0200.03320.21
5.5.110.0100.05020.11
5.5.100.0030.08320.04
5.5.90.0070.07320.04
5.5.80.0200.05020.09
5.5.70.0030.04320.05
5.5.60.0100.07720.14
5.5.50.0030.07720.14
5.5.40.0100.07320.04
5.5.30.0070.07720.08
5.5.20.0070.07020.03
5.5.10.0070.08319.98
5.5.00.0100.06320.00
5.4.450.0100.08019.23
5.4.440.0030.08719.35
5.4.430.0070.04719.11
5.4.420.0030.05319.11
5.4.410.0070.08019.32
5.4.400.0070.04018.96
5.4.390.0100.07319.16
5.4.380.0030.06319.12
5.4.370.0030.04718.98
5.4.360.0070.07319.04
5.4.350.0070.06318.94
5.4.340.0000.05019.23
5.4.320.0000.04719.23
5.4.310.0100.06319.10
5.4.300.0000.07319.11
5.4.290.0030.07318.96
5.4.280.0070.05018.94
5.4.270.0130.06019.09
5.4.260.0070.04718.96
5.4.250.0100.06719.11
5.4.240.0130.07018.96
5.4.230.0030.03719.06
5.4.220.0030.05319.11
5.4.210.0070.06719.22
5.4.200.0070.05319.11
5.4.190.0070.03719.11
5.4.180.0070.06019.11
5.4.170.0000.06018.89
5.4.160.0070.07719.04
5.4.150.0070.07318.94
5.4.140.0170.06316.11
5.4.130.0170.06716.11
5.4.120.0030.07716.27
5.4.110.0030.04316.42
5.4.100.0100.06716.34
5.4.90.0070.07016.43
5.4.80.0200.06016.42
5.4.70.0070.04016.31
5.4.60.0000.06716.23
5.4.50.0070.04016.32
5.4.40.0130.07016.29
5.4.30.0070.07316.40
5.4.20.0070.04716.37
5.4.10.0130.06316.39
5.4.00.0030.07015.76
5.3.290.0100.07714.65
5.3.280.0070.03714.52
5.3.270.0030.07714.56
5.3.260.0070.03714.56
5.3.250.0100.07714.54
5.3.240.0030.07714.59
5.3.230.0100.07314.41
5.3.220.0070.04014.55
5.3.210.0030.04314.52
5.3.200.0200.06014.47
5.3.190.0070.06014.55
5.3.180.0070.06014.38
5.3.170.0000.05314.54
5.3.160.0170.06314.42
5.3.150.0100.07014.54
5.3.140.0070.04014.51
5.3.130.0030.04714.53
5.3.120.0070.07314.36
5.3.110.0100.06014.45
5.3.100.0070.04314.04
5.3.90.0030.03713.84
5.3.80.0070.03314.00
5.3.70.0100.03313.92
5.3.60.0030.03713.98
5.3.50.0000.04713.93
5.3.40.0000.04313.70
5.3.30.0100.03313.67
5.3.20.0100.03013.68
5.3.10.0000.03013.41
5.3.00.0070.02713.62
5.2.170.0030.03311.28
5.2.160.0070.02711.28
5.2.150.0030.03011.28
5.2.140.0000.03011.28
5.2.130.0070.02011.28
5.2.120.0000.02711.28
5.2.110.0000.03311.28
5.2.100.0070.03711.28
5.2.90.0100.02311.28
5.2.80.0000.02711.28
5.2.70.0000.04711.28
5.2.60.0030.04711.28
5.2.50.0070.03311.28
5.2.40.0000.03011.28
5.2.30.0000.03311.28
5.2.20.0030.02711.28
5.2.10.0000.02711.28
5.2.00.0030.02311.28
5.1.60.0000.02711.28
5.1.50.0070.02011.28
5.1.40.0000.03311.28
5.1.30.0030.03011.28
5.1.20.0000.03011.28
5.1.10.0000.02711.28
5.1.00.0030.02311.28
5.0.50.0030.01711.28
5.0.40.0000.02011.28
5.0.30.0000.03011.28
5.0.20.0030.01711.28
5.0.10.0000.02011.28
5.0.00.0030.03011.28
4.4.90.0030.02311.28
4.4.80.0030.02711.28
4.4.70.0030.02711.28
4.4.60.0000.01311.28
4.4.50.0030.02011.28
4.4.40.0000.03711.28
4.4.30.0000.01711.28
4.4.20.0000.01711.28
4.4.10.0030.01311.28
4.4.00.0000.02711.28
4.3.110.0000.01711.28
4.3.100.0000.01711.28
4.3.90.0000.02011.28
4.3.80.0030.02311.28
4.3.70.0000.01711.28
4.3.60.0030.01311.28
4.3.50.0070.01311.28
4.3.40.0100.01711.28
4.3.30.0030.01311.28
4.3.20.0030.01311.28
4.3.10.0000.01311.28
4.3.00.0000.01311.28

preferences:
40.81 ms | 400 KiB | 5 Q