3v4l.org

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

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)
8.3.60.0170.00318.39
8.3.50.0100.01022.02
8.3.40.0040.01118.57
8.3.30.0090.00618.55
8.3.20.0050.00318.61
8.3.10.0090.00020.56
8.3.00.0040.00423.46
8.2.180.0120.00916.50
8.2.170.0090.00622.96
8.2.160.0100.01020.39
8.2.150.0050.00324.18
8.2.140.0060.00324.66
8.2.130.0080.00026.16
8.2.120.0080.00019.45
8.2.110.0090.00022.08
8.2.100.0040.00817.78
8.2.90.0070.00019.09
8.2.80.0070.00318.04
8.2.70.0000.00917.50
8.2.60.0040.00417.93
8.2.50.0000.00818.07
8.2.40.0040.00418.16
8.2.30.0040.00419.85
8.2.20.0000.00717.64
8.2.10.0060.00317.48
8.2.00.0060.00317.51
8.1.280.0040.01125.92
8.1.270.0040.00423.99
8.1.260.0070.01026.35
8.1.250.0060.00328.09
8.1.240.0080.00317.23
8.1.230.0120.00017.42
8.1.220.0000.00818.77
8.1.210.0000.00818.89
8.1.200.0060.00317.35
8.1.190.0000.00717.51
8.1.180.0030.00618.10
8.1.170.0000.00818.84
8.1.160.0000.00818.78
8.1.150.0040.00418.52
8.1.140.0000.00717.41
8.1.130.0030.00317.82
8.1.120.0040.00417.27
8.1.110.0020.00517.42
8.1.100.0030.00317.39
8.1.90.0040.00417.41
8.1.80.0050.00217.26
8.1.70.0020.00517.39
8.1.60.0080.00017.51
8.1.50.0040.00417.38
8.1.40.0050.00217.43
8.1.30.0050.00217.57
8.1.20.0060.00317.41
8.1.10.0050.00217.47
8.1.00.0000.00817.36
8.0.300.0000.00719.85
8.0.290.0050.00317.18
8.0.280.0070.00018.43
8.0.270.0000.00717.11
8.0.260.0080.00016.74
8.0.250.0030.00516.76
8.0.240.0050.00516.93
8.0.230.0070.00016.76
8.0.220.0000.00716.81
8.0.210.0000.00616.86
8.0.200.0050.00616.86
8.0.190.0000.00716.94
8.0.180.0000.00716.80
8.0.170.0050.00316.77
8.0.160.0030.00616.76
8.0.150.0000.00716.71
8.0.140.0090.00316.71
8.0.130.0030.00313.34
8.0.120.0050.00316.73
8.0.110.0060.00316.70
8.0.100.0000.00716.79
8.0.90.0020.00516.84
8.0.80.0040.01116.74
8.0.70.0000.00716.83
8.0.60.0000.00816.72
8.0.50.0000.00716.62
8.0.30.0060.01417.05
8.0.20.0120.00817.40
8.0.10.0050.00216.82
8.0.00.0090.00716.71
7.4.330.0030.00313.43
7.4.320.0000.00716.53
7.4.300.0030.00316.37
7.4.290.0080.00016.44
7.4.280.0070.00016.44
7.4.270.0060.00016.54
7.4.260.0050.00013.14
7.4.250.0040.00416.45
7.4.240.0000.00716.50
7.4.230.0030.00316.33
7.4.220.0040.01516.52
7.4.210.0070.01016.54
7.4.200.0070.00016.55
7.4.190.0000.00716.32
7.4.160.0000.01916.44
7.4.150.0120.00617.40
7.4.140.0120.00417.86
7.4.130.0100.00716.42
7.4.120.0080.01016.36
7.4.110.0110.00616.32
7.4.100.0030.01416.43
7.4.90.0100.00716.49
7.4.80.0120.00619.04
7.4.70.0070.01016.25
7.4.60.0130.00316.20
7.4.50.0060.00316.36
7.4.40.0070.01122.27
7.4.30.0100.00716.39
7.4.00.0070.01114.75
7.3.330.0050.00013.05
7.3.320.0030.00312.82
7.3.310.0000.00716.10
7.3.300.0070.00016.16
7.3.290.0070.00716.15
7.3.280.0100.00616.14
7.3.270.0070.01017.40
7.3.260.0090.00918.24
7.3.250.0120.00516.29
7.3.240.0030.01316.38
7.3.230.0060.01016.39
7.3.210.0060.00916.20
7.3.200.0140.01019.39
7.3.190.0070.01316.12
7.3.180.0120.00316.05
7.3.170.0130.00516.46
7.3.160.0080.00716.12
7.3.120.0060.01114.76
7.3.110.0030.01314.47
7.3.100.0150.00014.68
7.3.90.0060.00914.56
7.3.80.0030.01414.39
7.3.70.0090.00014.68
7.3.60.0100.00614.82
7.3.50.0040.01114.60
7.3.40.0000.01514.55
7.3.30.0030.00614.64
7.3.20.0140.00016.50
7.3.10.0040.01016.40
7.3.00.0000.01116.55
7.2.330.0090.00916.39
7.2.320.0180.00616.55
7.2.310.0070.01016.57
7.2.300.0070.01116.60
7.2.290.0140.00616.29
7.2.250.0070.01114.90
7.2.240.0030.01315.01
7.2.230.0100.00714.80
7.2.220.0030.00614.96
7.2.210.0000.01314.84
7.2.200.0070.01014.74
7.2.190.0030.00614.89
7.2.180.0000.01114.88
7.2.170.0070.00714.70
7.2.130.0160.00316.07
7.2.120.0090.00616.70
7.2.110.0110.00416.38
7.2.100.0120.00316.45
7.2.90.0100.00316.42
7.2.80.0110.00716.62
7.2.70.0090.00916.49
7.2.60.0110.01516.45
7.2.50.0100.00716.05
7.2.40.0210.01116.59
7.2.30.0040.01816.62
7.2.20.0150.00516.23
7.2.10.0170.00716.66
7.2.00.0090.00617.78
7.1.330.0070.00715.80
7.1.320.0040.00815.70
7.1.310.0090.00015.52
7.1.300.0070.00715.73
7.1.290.0000.01515.77
7.1.280.0030.01215.79
7.1.270.0000.00915.86
7.1.260.0000.01415.71
7.1.250.0090.00615.66
7.1.100.0100.00618.18
7.1.70.0000.01016.78
7.1.60.0060.00919.40
7.1.50.0070.01716.86
7.1.00.0000.07022.33
7.0.200.0030.00716.82
7.0.140.0030.07322.11
7.0.60.0070.08021.78
7.0.50.0030.07022.13
7.0.40.0100.07720.00
7.0.30.0000.09020.03
7.0.20.0000.08320.04
7.0.10.0030.08020.03
7.0.00.0070.07320.10
5.6.280.0100.06720.77
5.6.210.0070.08020.49
5.6.200.0030.04721.10
5.6.190.0100.06321.00
5.6.180.0070.05721.09
5.6.170.0030.08721.12
5.6.160.0030.06021.14
5.6.150.0100.06320.98
5.6.140.0170.06321.11
5.6.130.0070.08321.04
5.6.120.0100.07720.98
5.6.110.0070.07720.98
5.6.100.0100.07320.97
5.6.90.0030.08321.07
5.6.80.0070.07720.41
5.6.70.0070.07020.34
5.6.60.0000.07720.46
5.6.50.0070.06720.40
5.6.40.0070.08020.33
5.6.30.0130.05720.45
5.6.20.0030.07720.35
5.6.10.0000.08020.36
5.6.00.0070.07320.37
5.5.350.0070.07720.52
5.5.340.0100.07320.90
5.5.330.0030.07020.76
5.5.320.0030.08320.89
5.5.310.0030.08720.96
5.5.300.0070.07720.75
5.5.290.0000.08020.76
5.5.280.0000.04720.76
5.5.270.0070.07720.86
5.5.260.0030.08320.64
5.5.250.0070.06320.61
5.5.240.0030.07720.25
5.5.230.0070.08020.34
5.5.220.0030.07320.34
5.5.210.0130.07720.14
5.5.200.0000.06320.19
5.5.190.0130.06320.30
5.5.180.0030.05720.09
5.5.160.0030.08320.14
5.5.150.0030.08320.19
5.5.140.0030.06020.14
5.5.130.0070.06720.14
5.5.120.0100.04020.32
5.5.110.0030.07720.21
5.5.100.0070.08020.04
5.5.90.0000.06720.00
5.5.80.0030.07720.12
5.5.70.0070.07319.99
5.5.60.0030.04320.00
5.5.50.0130.03019.99
5.5.40.0030.03720.11
5.5.30.0030.03719.99
5.5.20.0000.04720.11
5.5.10.0000.04319.99
5.5.00.0030.04019.99
5.4.450.0030.08019.27
5.4.440.0130.06719.54
5.4.430.0030.08019.27
5.4.420.0070.07319.52
5.4.410.0000.08019.12
5.4.400.0000.05319.17
5.4.390.0030.07318.97
5.4.380.0070.07319.00
5.4.370.0030.06019.17
5.4.360.0070.07719.16
5.4.350.0030.04018.99
5.4.340.0100.06719.05
5.4.320.0030.07718.93
5.4.310.0030.05719.07
5.4.300.0070.06718.98
5.4.290.0070.07019.10
5.4.280.0030.08018.96
5.4.270.0070.04019.05
5.4.260.0030.06719.00
5.4.250.0070.06319.00
5.4.240.0030.07719.00
5.4.230.0070.07019.07
5.4.220.0030.06018.89
5.4.210.0000.04018.98
5.4.200.0030.03719.00
5.4.190.0000.03718.97
5.4.180.0070.03018.98
5.4.170.0030.04718.91
5.4.160.0000.03718.96
5.4.150.0070.02718.85
5.4.140.0000.03016.34
5.4.130.0000.04316.36
5.4.120.0000.03016.21
5.4.110.0000.03716.18
5.4.100.0070.03016.21
5.4.90.0000.03316.40
5.4.80.0030.02716.43
5.4.70.0000.04016.46
5.4.60.0070.03316.42
5.4.50.0000.03316.25
5.4.40.0000.03016.44
5.4.30.0070.02016.35
5.4.20.0000.03016.38
5.4.10.0030.02716.22
5.4.00.0000.03015.70
5.3.290.0000.08314.50
5.3.280.0030.08014.52
5.3.270.0030.03314.52
5.3.260.0000.03714.58
5.3.250.0000.03014.52
5.3.240.0100.03314.55
5.3.230.0070.03314.51
5.3.220.0000.03014.48
5.3.210.0000.03014.50
5.3.200.0030.04014.50
5.3.190.0000.03714.48
5.3.180.0030.02714.51
5.3.170.0000.03314.48
5.3.160.0070.02714.47
5.3.150.0000.03014.39
5.3.140.0030.02714.52
5.3.130.0000.03014.54
5.3.120.0000.03014.39
5.3.110.0000.03314.52
5.3.100.0000.03013.86
5.3.90.0000.03013.84
5.3.80.0070.02313.99
5.3.70.0000.03013.91
5.3.60.0000.03013.76
5.3.50.0030.02713.92
5.3.40.0000.03013.79
5.3.30.0070.02313.89
5.3.20.0000.03313.45
5.3.10.0030.04013.41
5.3.00.0030.06713.58
5.2.170.0000.02311.12
5.2.160.0000.02311.19
5.2.150.0000.03011.14
5.2.140.0000.02311.18
5.2.130.0000.02311.01
5.2.120.0000.02311.10
5.2.110.0070.05311.13
5.2.100.0030.06311.02
5.2.90.0030.03311.11
5.2.80.0000.06711.05
5.2.70.0030.06011.02
5.2.60.0000.05711.02
5.2.50.0030.06010.85
5.2.40.0030.05710.98
5.2.30.0130.05010.96
5.2.20.0000.04710.94
5.2.10.0030.06010.70
5.2.00.0000.04010.55
5.1.60.0030.0579.86
5.1.50.0000.04310.00
5.1.40.0030.04710.02
5.1.30.0070.04710.29
5.1.20.0100.04310.32
5.1.10.0030.03710.04
5.1.00.0070.05010.13
5.0.50.0030.0478.61
5.0.40.0000.0478.61
5.0.30.0030.0538.61
5.0.20.0000.0438.61
5.0.10.0000.0478.61
5.0.00.0000.0638.61
4.4.90.0000.0338.61
4.4.80.0000.0378.61
4.4.70.0000.0378.61
4.4.60.0000.0378.61
4.4.50.0000.0378.61
4.4.40.0070.0378.61
4.4.30.0070.0338.61
4.4.20.0000.0338.61
4.4.10.0000.0338.61
4.4.00.0000.0508.61
4.3.110.0030.0378.61
4.3.100.0030.0278.61
4.3.90.0000.0308.61
4.3.80.0000.0438.61
4.3.70.0100.0238.61
4.3.60.0030.0338.61
4.3.50.0030.0308.61
4.3.40.0000.0478.61
4.3.30.0000.0238.61
4.3.20.0000.0278.61
4.3.10.0030.0378.61
4.3.00.0030.0308.61

preferences:
45.42 ms | 400 KiB | 5 Q