3v4l.org

run code in 300+ PHP versions simultaneously
<?php $input_array = array("FirSt" => 1, "SecOnd" => 4); print_r(array_change_key_case($input_array, CASE_UPPER));

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)
8.3.70.0090.00618.25
8.3.60.0120.00618.43
8.3.50.0090.01022.78
8.3.40.0070.00718.72
8.3.30.0100.00318.96
8.3.20.0040.00420.29
8.3.10.0080.00021.86
8.3.00.0000.00819.26
8.2.180.0150.00318.41
8.2.170.0070.00722.96
8.2.160.0080.00520.38
8.2.150.0030.00524.18
8.2.140.0080.00024.66
8.2.130.0080.00626.16
8.2.120.0050.00220.92
8.2.110.0060.00319.19
8.2.100.0040.00717.78
8.2.90.0040.00419.17
8.2.80.0000.00817.97
8.2.70.0050.00317.38
8.2.60.0060.00317.80
8.2.50.0080.00018.07
8.2.40.0050.00217.97
8.2.30.0080.00017.90
8.2.20.0030.00517.67
8.2.10.0050.00217.95
8.2.00.0040.00417.48
8.1.280.0110.00425.92
8.1.270.0040.00423.79
8.1.260.0070.00026.35
8.1.250.0080.00028.09
8.1.240.0060.00323.94
8.1.230.0040.00720.82
8.1.220.0000.00718.77
8.1.210.0000.00919.01
8.1.200.0030.00617.35
8.1.190.0030.00517.10
8.1.180.0000.00818.10
8.1.170.0000.00918.25
8.1.160.0080.00021.91
8.1.150.0000.00718.91
8.1.140.0040.00417.33
8.1.130.0040.00417.87
8.1.120.0000.00717.44
8.1.110.0030.00517.31
8.1.100.0000.00717.31
8.1.90.0030.00317.25
8.1.80.0040.00417.31
8.1.70.0000.00817.36
8.1.60.0060.00317.51
8.1.50.0040.00417.38
8.1.40.0050.00317.47
8.1.30.0040.00417.52
8.1.20.0080.00017.57
8.1.10.0000.00817.44
8.1.00.0050.00317.27
8.0.300.0030.00319.89
8.0.290.0060.00316.58
8.0.280.0030.00518.36
8.0.270.0030.00317.18
8.0.260.0030.00317.21
8.0.250.0070.00016.82
8.0.240.0030.00316.94
8.0.230.0040.00416.75
8.0.220.0000.00716.70
8.0.210.0030.00316.72
8.0.200.0060.00016.80
8.0.190.0040.00416.79
8.0.180.0000.00816.82
8.0.170.0000.00716.90
8.0.160.0080.00016.90
8.0.150.0040.00416.80
8.0.140.0030.00316.70
8.0.130.0030.00313.25
8.0.120.0040.00416.80
8.0.110.0040.00416.76
8.0.100.0000.00716.83
8.0.90.0070.00016.83
8.0.80.0090.01216.75
8.0.70.0000.00716.65
8.0.60.0070.00016.70
8.0.50.0040.00416.80
8.0.30.0090.00916.95
8.0.20.0080.01217.40
8.0.10.0040.00416.73
8.0.00.0080.01216.64
7.4.330.0030.00315.00
7.4.320.0000.00616.43
7.4.300.0060.00016.49
7.4.290.0000.00716.51
7.4.280.0050.00516.54
7.4.270.0070.00016.49
7.4.260.0090.00016.53
7.4.250.0040.00416.50
7.4.240.0030.00316.52
7.4.230.0000.00616.24
7.4.220.0090.00616.52
7.4.210.0120.00316.45
7.4.200.0070.00016.54
7.4.160.0100.00616.43
7.4.150.0180.00017.40
7.4.140.0080.01317.86
7.4.130.0060.01316.40
7.4.120.0100.00716.37
7.4.110.0100.00616.47
7.4.100.0100.01016.44
7.4.90.0040.01216.50
7.4.80.0130.00619.39
7.4.70.0110.00616.55
7.4.60.0170.00316.35
7.4.50.0000.00816.53
7.4.40.0070.01016.23
7.4.30.0080.00816.50
7.4.00.0020.01514.78
7.3.330.0060.00013.08
7.3.320.0000.00613.07
7.3.310.0000.00716.27
7.3.300.0070.00016.12
7.3.290.0080.00816.16
7.3.280.0050.01116.18
7.3.270.0070.01117.40
7.3.260.0110.00716.21
7.3.250.0120.00416.22
7.3.240.0070.01016.60
7.3.230.0170.00016.39
7.3.210.0100.00716.16
7.3.200.0100.01119.39
7.3.190.0090.00616.57
7.3.180.0120.00916.13
7.3.170.0030.01316.34
7.3.160.0090.00916.29
7.3.120.0070.01114.52
7.3.110.0070.01014.69
7.3.100.0050.00714.51
7.3.90.0030.01214.73
7.3.80.0070.00714.78
7.3.70.0050.00614.43
7.3.60.0050.01014.68
7.3.50.0060.00714.79
7.3.40.0080.00414.67
7.3.30.0060.00614.81
7.3.20.0100.00416.43
7.3.10.0060.00716.47
7.3.00.0080.00716.34
7.2.330.0100.00716.36
7.2.320.0040.01216.52
7.2.310.0070.01116.37
7.2.300.0080.00816.23
7.2.290.0060.01016.54
7.2.250.0110.00914.79
7.2.240.0050.01414.81
7.2.230.0050.01114.80
7.2.220.0000.01214.90
7.2.210.0120.00514.51
7.2.200.0050.00814.79
7.2.190.0070.00714.73
7.2.180.0030.01414.73
7.2.170.0060.00414.72
7.2.130.0100.00816.11
7.2.120.0100.00716.23
7.2.110.0090.00616.32
7.2.100.0150.00916.00
7.2.90.0110.00716.59
7.2.80.0120.00915.93
7.2.70.0090.01816.50
7.2.60.0150.01216.57
7.2.50.0100.00716.09
7.2.40.0230.00516.63
7.2.30.0150.00016.34
7.2.20.0090.01216.56
7.2.10.0180.00316.14
7.2.00.0090.00918.08
7.1.330.0030.01015.75
7.1.320.0070.01015.82
7.1.310.0020.00715.60
7.1.300.0050.00515.51
7.1.290.0040.01015.55
7.1.280.0040.00915.54
7.1.270.0020.01215.71
7.1.260.0050.00615.48
7.1.250.0160.00315.45
7.1.100.0030.01017.75
7.1.70.0000.00916.79
7.1.60.0080.00416.82
7.1.50.0040.00716.82
7.1.40.0080.00416.54
7.1.30.0000.01516.48
7.1.20.0000.01116.66
7.1.10.0000.00916.70
7.1.00.0090.00016.62
7.0.200.0030.00616.66
7.0.190.0090.00616.41
7.0.180.0000.00816.24
7.0.170.0000.00816.00
7.0.160.0000.00816.27
7.0.150.0000.00816.28
7.0.140.0050.00516.12
7.0.130.0060.00616.38
7.0.120.0070.00316.38
7.0.110.0000.00716.29
7.0.100.0030.00716.35
7.0.90.0000.01216.36
7.0.80.0060.00316.23
7.0.70.0030.00716.36
7.0.60.0040.00416.11
7.0.50.0040.00416.62
7.0.40.0000.00715.43
7.0.30.0030.00615.43
7.0.20.0000.01015.43
7.0.10.0040.00415.43
7.0.00.0030.01015.43
5.6.300.0040.04320.81
5.6.290.0030.04320.89
5.6.280.0090.03420.89
5.6.270.0290.04920.88
5.6.260.0030.05520.96
5.6.250.0060.03520.86
5.6.240.0000.04920.83
5.6.230.0110.03520.94
5.6.220.0070.03620.95
5.6.210.0060.03821.03
5.6.200.0270.04321.00
5.6.190.0030.04320.97
5.6.180.0000.04520.92
5.6.170.0000.04620.95
5.6.160.0070.08120.73
5.6.150.0030.05020.81
5.6.140.0000.04520.85
5.6.130.0070.03720.91
5.6.120.0030.04420.94
5.6.110.0030.05420.91
5.6.100.0000.04620.81
5.6.90.0060.03820.81
5.6.80.0030.03820.30
5.6.70.0030.07320.15
5.6.60.0000.08820.36
5.6.50.0030.06720.42
5.6.40.0000.05420.38
5.6.30.0060.03620.38
5.6.20.0070.07320.25
5.6.10.0070.04320.10
5.6.00.0060.03520.37
5.5.380.0070.03817.41
5.5.370.0100.06217.61
5.5.360.0070.03817.45
5.5.350.0130.04517.48
5.5.340.0070.05117.84
5.5.330.0100.04618.04
5.5.320.0070.04017.86
5.5.310.0000.05717.83
5.5.300.0030.04118.06
5.5.290.0030.04018.07
5.5.280.0060.06817.95
5.5.270.0070.08717.73
5.5.260.0000.04517.96
5.5.250.0000.04217.92
5.5.240.0100.07117.47
5.5.230.0030.03917.43
5.5.220.0130.04417.09
5.5.210.0070.04017.41
5.5.200.0000.04517.38
5.5.190.0000.04317.38
5.5.180.0000.05217.38
5.5.160.0030.04317.29
5.5.150.0030.04217.38
5.5.140.0030.03717.37
5.5.130.0070.04017.31
5.5.120.0030.04017.34
5.5.110.0040.03917.34
5.5.100.0000.04317.00
5.5.90.0060.03817.24
5.5.80.0000.03817.32
5.5.70.0000.04017.23
5.5.60.0030.04016.92
5.5.50.0060.03517.37
5.5.40.0060.03217.25
5.5.30.0040.03617.30
5.5.20.0100.04017.23
5.5.10.0130.03317.27
5.5.00.0030.04117.17
5.4.450.0070.04319.43
5.4.440.0070.07219.31
5.4.430.0060.05219.20
5.4.420.0000.04219.18
5.4.410.0030.05119.18
5.4.400.0030.03618.84
5.4.390.0070.03618.83
5.4.380.0040.03919.07
5.4.370.0000.04319.09
5.4.360.0000.04118.97
5.4.350.0060.03619.06
5.4.340.0170.03819.17
5.4.320.0070.04018.85
5.4.310.0000.04719.14
5.4.300.0030.03819.03
5.4.290.0000.04219.17
5.4.280.0030.03819.07
5.4.270.0030.03618.97
5.4.260.0000.04119.05
5.4.250.0000.03918.85
5.4.240.0000.03919.06
5.4.230.0030.06219.00
5.4.220.0030.03919.13
5.4.210.0030.03819.02
5.4.200.0040.03519.06
5.4.190.0030.04119.06
5.4.180.0060.03819.08
5.4.170.0030.03718.88
5.4.160.0070.06318.99
5.4.150.0030.04218.99
5.4.140.0000.04216.37
5.4.130.0060.04216.37
5.4.120.0000.05616.51
5.4.110.0000.03816.69
5.4.100.0030.03416.61
5.4.90.0070.03116.45
5.4.80.0040.04616.56
5.4.70.0030.03416.45
5.4.60.0030.04016.34
5.4.50.0070.03316.57
5.4.40.0030.03916.61
5.4.30.0030.06616.62
5.4.20.0070.07216.59
5.4.10.0070.05016.38
5.4.00.0070.05916.06
5.3.290.0030.04015.43
5.3.280.0070.03715.43
5.3.270.0000.04115.43
5.3.260.0070.05015.43
5.3.250.0060.03215.43
5.3.240.0040.03915.43
5.3.230.0000.04315.43
5.3.220.0000.04015.43
5.3.210.0000.04015.43
5.3.200.0030.03715.43
5.3.190.0000.07715.43
5.3.180.0070.03315.43
5.3.170.0000.07215.43
5.3.160.0070.06315.43
5.3.150.0030.05915.43
5.3.140.0070.05615.43
5.3.130.0100.03015.43
5.3.120.0000.06415.43
5.3.110.0030.06615.43
5.3.100.0070.07215.43
5.3.90.0060.04115.43
5.3.80.0100.05415.43
5.3.70.0060.06815.43
5.3.60.0030.06815.43
5.3.50.0040.03515.43
5.3.40.0000.03915.43
5.3.30.0000.03715.43
5.3.20.0260.02615.43
5.3.10.0100.02715.43
5.3.00.0030.04615.43
5.2.170.0000.03215.43
5.2.160.0030.03615.43
5.2.150.0000.03115.43
5.2.140.0100.04515.43
5.2.130.0030.02715.43
5.2.120.0040.04315.43
5.2.110.0040.02815.43
5.2.100.0070.02615.43
5.2.90.0000.03015.43
5.2.80.0030.02915.43
5.2.70.0100.02615.43
5.2.60.0030.03015.43
5.2.50.0030.02715.43
5.2.40.0030.02615.43
5.2.30.0000.03115.43
5.2.20.0070.03415.43
5.2.10.0070.04715.43
5.2.00.0100.05315.43
5.1.60.0030.05315.43
5.1.50.0000.05415.43
5.1.40.0030.04615.43
5.1.30.0030.03015.43
5.1.20.0130.04815.43
5.1.10.0030.04115.43
5.1.00.0000.04615.43
5.0.50.0070.03715.43
5.0.40.0030.02015.43
5.0.30.0030.03315.43
5.0.20.0060.01515.43
5.0.10.0030.04515.43
5.0.00.0000.05215.43
4.4.90.0000.01715.43
4.4.80.0030.01315.43
4.4.70.0000.03715.43
4.4.60.0000.03915.43
4.4.50.0030.01315.43
4.4.40.0070.05015.43
4.4.30.0000.02715.43
4.4.20.0000.02715.43
4.4.10.0100.02915.43
4.4.00.0000.02615.43
4.3.110.0000.01815.43
4.3.100.0000.01615.43
4.3.90.0030.01615.43
4.3.80.0070.04915.43
4.3.70.0000.02115.43
4.3.60.0000.01615.43
4.3.50.0000.03915.43
4.3.40.0000.03515.43
4.3.30.0030.01715.43
4.3.20.0040.01815.43
4.3.10.0060.01315.43
4.3.00.0030.01515.43

preferences:
50.11 ms | 401 KiB | 5 Q