3v4l.org

run code in 300+ PHP versions simultaneously
<?php print_r(array_change_key_case(["Content-Type" => "Application/json"]));

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)
8.3.60.0070.01518.30
8.3.50.0130.00621.94
8.3.40.0110.00418.54
8.3.30.0140.00018.79
8.3.20.0040.00420.04
8.3.10.0060.00321.70
8.3.00.0040.00422.40
8.2.180.0130.00918.14
8.2.170.0080.00622.96
8.2.160.0150.00320.87
8.2.150.0070.00024.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0070.00019.64
8.2.110.0090.00022.11
8.2.100.0070.00417.66
8.2.90.0000.00718.97
8.2.80.0000.00917.97
8.2.70.0060.00317.38
8.2.60.0060.00317.80
8.2.50.0050.00318.07
8.2.40.0040.00417.90
8.2.30.0030.00617.97
8.2.20.0040.00417.43
8.2.10.0040.00419.34
8.2.00.0080.00017.54
8.1.280.0070.01325.92
8.1.270.0080.00022.02
8.1.260.0000.00926.35
8.1.250.0140.00428.09
8.1.240.0030.00724.02
8.1.230.0040.00719.09
8.1.220.0000.00717.74
8.1.210.0000.00818.77
8.1.200.0030.00617.23
8.1.190.0000.00717.41
8.1.180.0030.00518.10
8.1.170.0000.01218.30
8.1.160.0000.00721.88
8.1.150.0000.00718.48
8.1.140.0030.00617.26
8.1.130.0000.00717.73
8.1.120.0030.00317.36
8.1.110.0050.00317.32
8.1.100.0000.00717.19
8.1.90.0040.00417.34
8.1.80.0000.00717.32
8.1.70.0000.00717.21
8.1.60.0060.00317.42
8.1.50.0070.00017.34
8.1.40.0000.00917.40
8.1.30.0040.00417.52
8.1.20.0000.00817.41
8.1.10.0040.00417.33
8.1.00.0060.00317.31
8.0.300.0040.00418.77
8.0.290.0070.00016.93
8.0.280.0000.00718.18
8.0.270.0000.00717.11
8.0.260.0070.00016.59
8.0.250.0070.00016.84
8.0.240.0070.00016.88
8.0.230.0030.00316.80
8.0.220.0070.00016.64
8.0.210.0030.00316.75
8.0.200.0040.00416.70
8.0.190.0080.00016.80
8.0.180.0000.00916.77
8.0.170.0040.00416.78
8.0.160.0070.00016.58
8.0.150.0070.00016.72
8.0.140.0000.00816.68
8.0.130.0060.00013.13
8.0.120.0050.00316.72
8.0.110.0040.00416.67
8.0.100.0070.00016.76
8.0.90.0070.00016.63
8.0.80.0080.00716.77
8.0.70.0080.00016.77
8.0.60.0070.00016.61
8.0.50.0050.00316.79
8.0.30.0130.00516.88
8.0.20.0160.00417.40
8.0.10.0000.00716.76
8.0.00.0070.01016.53
7.4.330.0020.00315.00
7.4.320.0000.00616.36
7.4.300.0000.00616.44
7.4.290.0030.00316.54
7.4.280.0030.00316.37
7.4.270.0000.00716.34
7.4.260.0070.00016.41
7.4.250.0030.00316.37
7.4.240.0030.00416.35
7.4.230.0030.00316.35
7.4.220.0030.01516.53
7.4.210.0060.00816.36
7.4.200.0000.00816.27
7.4.190.0030.00316.63
7.4.160.0100.00716.59
7.4.150.0120.00617.40
7.4.140.0100.00817.86
7.4.130.0110.00616.42
7.4.120.0080.01116.42
7.4.110.0100.00716.37
7.4.100.0090.00916.22
7.4.90.0070.01016.45
7.4.80.0230.01219.39
7.4.70.0130.01016.57
7.4.60.0060.00916.28
7.4.50.0000.00816.43
7.4.40.0030.01022.77
7.4.30.0120.00416.22
7.4.00.0060.01014.54
7.3.330.0050.00013.04
7.3.320.0030.00212.96
7.3.310.0040.00416.25
7.3.300.0030.00316.13
7.3.290.0130.00716.10
7.3.280.0060.00916.12
7.3.270.0070.01017.40
7.3.260.0100.01016.33
7.3.250.0110.00816.17
7.3.240.0150.00316.17
7.3.230.0150.00916.39
7.3.210.0070.01116.11
7.3.200.0070.01119.39
7.3.190.0120.00616.30
7.3.180.0060.00916.24
7.3.170.0040.01116.27
7.3.160.0140.00316.35
7.3.120.0100.00514.81
7.3.110.0060.01014.75
7.3.100.0130.00314.79
7.3.90.0060.00914.66
7.3.80.0060.00614.59
7.3.70.0000.01614.69
7.3.60.0030.00914.75
7.3.50.0040.00814.59
7.3.40.0060.00814.41
7.3.30.0070.00714.61
7.3.20.0090.00616.23
7.3.10.0060.00616.16
7.3.00.0040.00816.40
7.2.330.0160.00316.51
7.2.320.0120.00916.26
7.2.310.0090.00916.53
7.2.300.0130.00316.35
7.2.290.0090.00616.15
7.2.250.0060.01314.69
7.2.240.0150.00314.76
7.2.230.0060.00914.59
7.2.220.0040.00814.64
7.2.210.0090.00614.80
7.2.200.0040.00714.98
7.2.190.0090.00614.61
7.2.180.0000.01414.67
7.2.170.0110.00315.05
7.2.00.0090.00619.28
7.1.330.0120.00315.77
7.1.320.0040.01115.80
7.1.310.0030.00615.76
7.1.300.0050.00515.68
7.1.290.0030.01015.86
7.1.280.0040.00415.59
7.1.270.0030.01015.51
7.1.260.0060.01015.82
7.1.100.0000.01218.24
7.1.70.0030.00617.00
7.1.60.0130.01319.82
7.1.50.0130.00916.85
7.1.00.0000.08022.54
7.0.200.0000.01716.59
7.0.140.0000.07721.92
7.0.60.0130.07319.79
7.0.50.0130.05717.89
7.0.40.0070.05720.03
7.0.30.0200.04020.04
7.0.20.0330.08020.21
7.0.10.0070.04020.20
7.0.00.0130.07320.19
5.6.280.0030.07320.90
5.6.210.0100.08320.67
5.6.200.0000.04318.18
5.6.190.0100.08320.33
5.6.180.0330.05720.43
5.6.170.0230.08020.39
5.6.160.0100.04720.49
5.6.150.0030.04318.10
5.6.140.0000.06018.16
5.6.130.0100.05318.18
5.6.120.0030.04320.98
5.6.110.0130.08020.93
5.6.100.0100.07721.00
5.6.90.0170.06320.98
5.6.80.0130.07320.47
5.5.350.0130.04320.43
5.5.340.0130.07718.02
5.5.330.0000.04320.58
5.5.320.0130.07020.24
5.5.310.0170.04720.18
5.5.300.0100.03318.02
5.5.290.0070.05318.00
5.5.280.0130.03720.84
5.5.270.0100.08020.86
5.5.260.0100.05020.79
5.5.250.0070.07320.78
5.5.240.3600.03320.03
5.4.450.0100.04319.27
5.4.440.0230.05019.20
5.4.430.0300.07719.41
5.4.420.0300.06719.42
5.4.410.0270.07019.25
5.4.400.0270.07319.09
5.4.390.0330.07019.09
5.4.380.0300.06319.09
5.4.370.0270.06718.88
5.4.360.0270.07319.10
5.4.350.0300.05019.24
5.4.340.0300.06318.93
5.4.320.0200.04019.16
5.4.310.0270.06719.06
5.4.300.0200.05018.79
5.4.290.0300.07018.91
5.4.280.0230.05719.25
5.4.270.0300.07018.92
5.4.260.0300.06319.13
5.4.250.0230.07319.05
5.4.240.0230.06019.07
5.4.230.0270.07319.12
5.4.220.0300.06719.08
5.4.210.0200.04019.15
5.4.200.0230.06719.05
5.4.190.0200.08318.80
5.4.180.0200.07719.23
5.4.170.0200.05319.10
5.4.160.0200.07319.06
5.4.150.0230.07318.77
5.4.140.0230.05716.29
5.4.130.0270.06716.22
5.4.120.0270.04716.16
5.4.110.0300.06016.49
5.4.100.0270.07016.39
5.4.90.0230.05716.39
5.4.80.0170.07316.37
5.4.70.0200.04316.48
5.4.60.0200.07316.29
5.4.50.0330.03016.31
5.4.40.0100.06316.28
5.4.30.0270.06716.17
5.4.20.0230.06716.40
5.4.10.0200.07316.45
5.4.00.0270.06015.89
5.3.290.0270.03314.50
5.3.280.0300.06714.62
5.3.270.0200.08014.57
5.3.260.0200.07314.54
5.3.250.0200.07714.51
5.3.240.0230.04714.55
5.3.230.0230.07014.45
5.3.220.0200.04314.40
5.3.210.0130.05314.41
5.3.200.0200.05714.40
5.3.190.0230.06014.50
5.3.180.0200.07014.51
5.3.170.0270.07014.40
5.3.160.0230.06014.41
5.3.150.0200.07314.44
5.3.140.0230.06014.39
5.3.130.0330.06714.53
5.3.120.0270.05714.38
5.3.110.0200.05014.64
5.3.100.0270.04313.89
5.3.90.0270.06713.97
5.3.80.0270.03713.95
5.3.70.0230.06313.96
5.3.60.0300.06713.80
5.3.50.0230.05313.99
5.3.40.0270.07013.97
5.3.30.0200.07013.68
5.3.20.0200.06713.54
5.3.10.0200.07013.48
5.3.00.0200.06713.68
5.2.170.0170.06012.01
5.2.160.0200.05012.01
5.2.150.0100.04712.01
5.2.140.0170.06012.01
5.2.130.0170.05312.01
5.2.120.0230.05012.01
5.2.110.0200.05012.01
5.2.100.0200.06012.01
5.2.90.0170.05712.01
5.2.80.0200.05012.01
5.2.70.0230.05712.01
5.2.60.0130.05712.01
5.2.50.0370.02712.01
5.2.40.0170.04012.01
5.2.30.0170.05712.01
5.2.20.0130.06012.01
5.2.10.0200.04712.01
5.2.00.0130.06312.01
5.1.60.0130.04312.01
5.1.50.0200.04312.01
5.1.40.0170.04712.01
5.1.30.0200.05312.01
5.1.20.0200.05012.01
5.1.10.0200.04712.01
5.1.00.0130.05712.01
5.0.50.0130.02012.01
5.0.40.0170.03712.01
5.0.30.0100.06012.01
5.0.20.0100.03712.01
5.0.10.0130.02712.01
5.0.00.0070.04012.01
4.4.90.0130.03012.01
4.4.80.0100.03312.01
4.4.70.0100.03012.01
4.4.60.0070.02312.01
4.4.50.0100.03712.01
4.4.40.0070.05712.01
4.4.30.0070.02012.01
4.4.20.0030.03712.01
4.4.10.0070.03712.01
4.4.00.0070.05712.01
4.3.110.0070.03712.01
4.3.100.0100.03012.01
4.3.90.0070.03012.01
4.3.80.0070.03712.01
4.3.70.0130.02312.01
4.3.60.0100.03012.01
4.3.50.0130.02712.01
4.3.40.0070.04712.01
4.3.30.0100.02312.01
4.3.20.0030.03012.01
4.3.10.0000.02312.01
4.3.00.0000.02012.01

preferences:
39.95 ms | 401 KiB | 5 Q