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)
8.3.60.0070.01118.18
8.3.50.0110.01022.02
8.3.40.0110.00418.64
8.3.30.0070.00719.02
8.3.20.0070.00020.25
8.3.10.0040.00423.66
8.3.00.0000.00720.52
8.2.180.0060.00916.50
8.2.170.0140.01122.96
8.2.160.0100.00321.98
8.2.150.0030.00624.18
8.2.140.0050.00324.66
8.2.130.0070.00026.16
8.2.120.0070.00022.31
8.2.110.0090.00019.38
8.2.100.0090.00317.66
8.2.90.0050.00319.82
8.2.80.0030.00619.40
8.2.70.0040.00417.91
8.2.60.0040.00417.68
8.2.50.0040.00418.10
8.2.40.0000.00817.97
8.2.30.0040.00418.00
8.2.20.0080.00017.50
8.2.10.0000.00817.61
8.2.00.0070.00017.45
8.1.280.0100.00725.92
8.1.270.0080.00023.91
8.1.260.0040.00426.35
8.1.250.0030.00628.09
8.1.240.0060.00322.29
8.1.230.0070.00320.89
8.1.220.0000.00817.74
8.1.210.0060.00318.77
8.1.200.0070.00317.23
8.1.190.0040.00417.10
8.1.180.0000.00818.10
8.1.170.0000.00818.60
8.1.160.0070.00021.92
8.1.150.0040.00418.53
8.1.140.0000.00717.31
8.1.130.0070.00017.80
8.1.120.0030.00317.21
8.1.110.0040.00417.23
8.1.100.0000.00717.25
8.1.90.0040.00417.36
8.1.80.0000.00717.22
8.1.70.0060.00017.15
8.1.60.0030.00617.33
8.1.50.0080.00017.35
8.1.40.0050.00217.36
8.1.30.0040.00417.47
8.1.20.0050.00217.56
8.1.10.0090.00017.43
8.1.00.0000.00717.21
8.0.300.0030.00319.77
8.0.290.0000.00716.58
8.0.280.0040.00418.30
8.0.270.0030.00317.03
8.0.260.0070.00316.73
8.0.250.0040.00416.70
8.0.240.0030.00516.81
8.0.230.0000.00616.82
8.0.220.0030.00316.77
8.0.210.0000.00716.73
8.0.200.0040.00416.91
8.0.190.0000.00716.72
8.0.180.0080.00016.77
8.0.170.0000.00816.77
8.0.160.0000.00716.74
8.0.150.0040.00416.52
8.0.140.0000.00816.61
8.0.130.0030.00313.17
8.0.120.0000.00816.71
8.0.110.0000.00716.57
8.0.100.0000.00716.73
8.0.90.0000.00716.74
8.0.80.0030.01316.81
8.0.70.0000.00716.75
8.0.60.0020.00516.82
8.0.50.0040.00416.77
8.0.30.0070.01216.96
8.0.20.0100.01017.40
8.0.10.0070.00016.93
8.0.00.0100.00716.60
7.4.330.0050.00015.00
7.4.320.0030.00316.28
7.4.300.0000.00616.46
7.4.290.0030.00316.42
7.4.280.0040.00416.35
7.4.270.0060.00016.38
7.4.260.0040.00416.36
7.4.250.0040.00416.32
7.4.240.0040.00416.36
7.4.230.0000.00716.10
7.4.220.0160.00616.54
7.4.210.0040.01516.46
7.4.200.0000.00716.34
7.4.190.0040.00416.52
7.4.160.0100.00716.09
7.4.150.0070.01017.40
7.4.140.0130.00817.86
7.4.130.0080.00816.37
7.4.120.0090.00916.33
7.4.110.0100.00716.39
7.4.100.0100.00716.52
7.4.90.0070.01116.25
7.4.80.0110.00716.16
7.4.70.0060.01616.34
7.4.60.0060.00916.29
7.4.50.0000.00816.26
7.4.40.0090.00922.77
7.4.30.0100.00716.18
7.4.00.0030.01214.98
7.3.330.0000.00613.05
7.3.320.0000.00512.94
7.3.310.0030.00316.09
7.3.300.0000.00616.03
7.3.290.0080.01216.11
7.3.280.0070.00916.11
7.3.270.0130.00617.40
7.3.260.0080.01416.32
7.3.250.0090.01116.17
7.3.240.0130.00316.10
7.3.230.0030.01316.39
7.3.210.0110.00616.15
7.3.200.0120.00919.39
7.3.190.0090.00616.13
7.3.180.0120.00316.38
7.3.170.0080.00816.27
7.3.160.0080.00816.18
7.3.120.0100.00714.68
7.3.10.0090.00316.42
7.3.00.0100.00816.52
7.2.330.0140.00316.23
7.2.320.0100.00716.32
7.2.310.0100.00716.47
7.2.300.0100.00616.49
7.2.290.0040.01316.39
7.2.130.0140.00316.45
7.2.120.0030.01016.76
7.2.110.0100.00316.64
7.2.100.0030.01416.58
7.2.90.0100.00816.63
7.2.80.0060.00816.43
7.2.70.0070.00716.83
7.2.60.0020.01016.52
7.2.50.0120.00016.37
7.2.40.0090.00916.62
7.2.30.0140.00716.77
7.2.20.0000.01516.51
7.2.10.0090.00616.46
7.2.00.0010.01017.87
7.1.250.0100.00715.65
7.1.200.0040.01115.59
7.1.100.0280.00718.05
7.1.70.0030.01616.90
7.1.60.0110.00719.32
7.1.50.0030.00916.94
7.1.00.0030.07722.45
7.0.200.0050.00316.56
7.0.140.0070.07021.99
7.0.70.0030.03721.82
7.0.60.0000.04321.71
7.0.50.0100.04022.10
7.0.40.0070.06320.05
7.0.30.0030.04020.14
7.0.20.0030.05020.10
7.0.10.0000.04319.98
7.0.00.0000.04320.18
5.6.280.0000.10320.88
5.6.220.0070.03720.48
5.6.210.0070.04320.76
5.6.200.0030.04021.03
5.6.190.0100.07721.04
5.6.180.0030.05721.01
5.6.170.0030.04021.05
5.6.160.0000.04321.07
5.6.150.0030.06721.02
5.6.140.0000.03721.00
5.6.130.0030.04021.16
5.6.120.0000.04321.16
5.6.110.0000.04721.05
5.6.100.0030.04720.92
5.6.90.0000.03721.08
5.6.80.0030.04020.44
5.6.70.0000.04020.48
5.6.60.0070.06720.39
5.6.50.0070.06320.55
5.6.40.0070.07720.42
5.6.30.0030.08320.41
5.6.20.0070.08020.26
5.6.10.0000.04320.46
5.6.00.0030.05020.25
5.5.360.0030.04320.34
5.5.350.0000.04720.41
5.5.340.0000.05720.71
5.5.330.0100.07320.79
5.5.320.0000.04720.82
5.5.310.0030.06320.89
5.5.300.0070.03720.90
5.5.290.0030.03320.75
5.5.280.0030.06720.75
5.5.270.0000.04320.85
5.5.260.0000.06020.85
5.5.250.0100.04320.60
5.5.240.0070.03320.19
5.5.230.0030.03720.17
5.5.220.0100.05320.21
5.5.210.0000.08320.24
5.5.200.0030.08320.10
5.5.190.0000.08720.15
5.5.180.0100.07319.98
5.5.160.0000.04019.98
5.5.150.0000.07019.98
5.5.140.0030.08020.23
5.5.130.0070.07320.09
5.5.120.0030.04720.23
5.5.110.0130.07320.20
5.5.100.0070.07320.07
5.5.90.0030.05719.96
5.5.80.0100.06320.14
5.5.70.0070.06320.13
5.5.60.0030.08020.03
5.5.50.0070.06020.13
5.5.40.0070.06020.10
5.5.30.0030.06720.09
5.5.20.0070.07319.94
5.5.10.0100.06720.05
5.5.00.0030.08020.02
5.4.450.0070.05719.43
5.4.440.0030.06019.11
5.4.430.0030.08019.43
5.4.420.0030.04019.11
5.4.410.0030.05319.03
5.4.400.0070.03719.03
5.4.390.0030.03718.96
5.4.380.0000.03719.03
5.4.370.0000.05319.03
5.4.360.0000.09718.92
5.4.350.0200.06018.95
5.4.340.0130.06718.98
5.4.320.0070.03319.23
5.4.310.0070.07719.06
5.4.300.0000.08319.09
5.4.290.0030.04719.07
5.4.280.0100.07019.14
5.4.270.0130.06019.02
5.4.260.0070.04718.79
5.4.250.0000.06319.04
5.4.240.0000.06318.80
5.4.230.0030.05318.82
5.4.220.0030.07719.11
5.4.210.0000.08319.11
5.4.200.0000.07718.93
5.4.190.0000.07718.93
5.4.180.0070.07318.95
5.4.170.0030.05318.93
5.4.160.0030.07019.12
5.4.150.0030.07719.13
5.4.140.0130.04316.31
5.4.130.0000.07316.32
5.4.120.0100.07016.36
5.4.110.0000.07316.34
5.4.100.0000.07016.42
5.4.90.0030.07016.40
5.4.80.0070.06016.32
5.4.70.0070.04716.24
5.4.60.0000.05316.30
5.4.50.0030.05716.18
5.4.40.0000.08016.39
5.4.30.0130.06016.18
5.4.20.0100.04716.31
5.4.10.0070.07316.41
5.4.00.0000.07715.71
5.3.290.0070.07314.52
5.3.280.0030.07714.60
5.3.270.0000.04314.44
5.3.260.0030.07314.57
5.3.250.0070.07314.59
5.3.240.0000.06314.55
5.3.230.0030.07314.46
5.3.220.0030.05314.52
5.3.210.0000.06014.39
5.3.200.0030.05714.58
5.3.190.0000.08014.43
5.3.180.0070.07314.52
5.3.170.0030.08014.40
5.3.160.0030.04314.47
5.3.150.0000.07714.55
5.3.140.0000.06714.53
5.3.130.0030.08014.53
5.3.120.0030.08014.49
5.3.110.0030.07714.41
5.3.100.0130.07013.90
5.3.90.0030.07314.00
5.3.80.0030.07314.02
5.3.70.0030.07714.02
5.3.60.0100.05713.78
5.3.50.0000.06313.81
5.3.40.0070.05013.80
5.3.30.0030.05713.81
5.3.20.0030.06313.55
5.3.10.0100.03713.64
5.3.00.0070.07313.63
5.2.170.0030.05012.21
5.2.160.0070.04712.21
5.2.150.0000.07012.21
5.2.140.0070.06012.21
5.2.130.0030.03712.21
5.2.120.0070.04312.21
5.2.110.0030.05712.21
5.2.100.0070.06012.21
5.2.90.0030.05712.21
5.2.80.0070.04712.21
5.2.70.0030.06312.21
5.2.60.0030.06312.21
5.2.50.0030.05312.21
5.2.40.0030.06312.21
5.2.30.0030.05712.21
5.2.20.0070.06012.21
5.2.10.0230.04312.21
5.2.00.0070.06012.21
5.1.60.0070.03712.21
5.1.50.0030.05012.21
5.1.40.0030.05012.21
5.1.30.0030.05312.21
5.1.20.0030.05012.21
5.1.10.0030.04012.21
5.1.00.0030.05312.21
5.0.50.0070.03012.21
5.0.40.0000.04012.21
5.0.30.0030.06012.21
5.0.20.0070.03312.21
5.0.10.0030.04312.21
5.0.00.0130.05712.21
4.4.90.0030.03312.21
4.4.80.0000.03712.21
4.4.70.0000.03712.21
4.4.60.0030.03312.21
4.4.50.0030.03312.21
4.4.40.0000.04012.21
4.4.30.0000.03012.21
4.4.20.0000.03712.21
4.4.10.0000.03312.21
4.4.00.0070.04012.21
4.3.110.0030.03712.21
4.3.100.0000.03012.21
4.3.90.0000.04012.21
4.3.80.0000.05312.21
4.3.70.0070.03012.21
4.3.60.0030.02312.21
4.3.50.0030.03312.21
4.3.40.0030.03312.21
4.3.30.0030.02712.21
4.3.20.0030.04012.21
4.3.10.0030.03712.21
4.3.00.0030.03712.21

preferences:
65.24 ms | 400 KiB | 5 Q