3v4l.org

run code in 300+ PHP versions simultaneously
<?php $automerken = array("bmw" => "1 Series", "Mercedes" => "A klasse"); var_dump($automerken); print_r(array_change_key_case($automerken, CASE_UPPER)); print_r(array_change_key_case($automerken, CASE_LOWER));

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)
8.3.40.0060.01318.72
8.3.30.0100.00318.84
8.3.20.0000.00820.14
8.3.10.0080.00021.83
8.3.00.0030.00522.56
8.2.170.0070.00722.96
8.2.160.0210.00020.65
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0030.01026.16
8.2.120.0050.00319.36
8.2.110.0040.00422.24
8.2.100.0080.00417.78
8.2.90.0030.00619.14
8.2.80.0050.00317.97
8.2.70.0090.00317.25
8.2.60.0060.00317.80
8.2.50.0050.00318.07
8.2.40.0040.00418.16
8.2.30.0000.00717.87
8.2.20.0040.00417.50
8.2.10.0060.00317.63
8.2.00.0080.00017.62
8.1.270.0030.01023.92
8.1.260.0070.01126.35
8.1.250.0050.00228.09
8.1.240.0030.00623.79
8.1.230.0040.00719.12
8.1.220.0000.00817.74
8.1.210.0030.00618.77
8.1.200.0070.00417.23
8.1.190.0030.00617.39
8.1.180.0030.00618.10
8.1.170.0060.00318.55
8.1.160.0000.00721.87
8.1.150.0000.00818.57
8.1.140.0070.00017.38
8.1.130.0000.00717.93
8.1.120.0040.00417.29
8.1.110.0050.00217.31
8.1.100.0070.00017.30
8.1.90.0040.00417.38
8.1.80.0050.00217.42
8.1.70.0000.00717.39
8.1.60.0050.00517.53
8.1.50.0040.00417.43
8.1.40.0040.00417.50
8.1.30.0030.00617.46
8.1.20.0030.00617.57
8.1.10.0040.00417.45
8.1.00.0000.00717.41
8.0.300.0030.00318.77
8.0.290.0050.00217.15
8.0.280.0000.00718.29
8.0.270.0070.00017.11
8.0.260.0000.00616.62
8.0.250.0000.00716.81
8.0.240.0090.00016.88
8.0.230.0000.00716.85
8.0.220.0030.00316.69
8.0.210.0000.00816.71
8.0.200.0000.00616.87
8.0.190.0080.00016.90
8.0.180.0050.00316.88
8.0.170.0050.00216.72
8.0.160.0050.00216.78
8.0.150.0040.00416.73
8.0.140.0030.00416.80
8.0.130.0030.00313.25
8.0.120.0000.00816.63
8.0.110.0000.00716.66
8.0.100.0000.00716.82
8.0.90.0030.00516.70
8.0.80.0060.00916.81
8.0.70.0000.00816.84
8.0.60.0060.00316.68
8.0.50.0040.00416.82
8.0.30.0140.00816.95
8.0.20.0140.01017.40
8.0.10.0000.00716.86
8.0.00.0120.00816.71
7.4.330.0000.00515.00
7.4.320.0030.00316.55
7.4.300.0030.00316.34
7.4.290.0000.00716.38
7.4.280.0000.00616.41
7.4.270.0030.00516.34
7.4.260.0030.00316.52
7.4.250.0000.00716.42
7.4.240.0060.00116.51
7.4.230.0000.00716.60
7.4.220.0070.01116.49
7.4.210.0050.00916.48
7.4.200.0000.00716.47
7.4.190.0040.00416.68
7.4.160.0080.00816.59
7.4.150.0070.01017.40
7.4.140.0130.00717.86
7.4.130.0120.00616.38
7.4.120.0120.00516.44
7.4.110.0070.01116.57
7.4.100.0100.00816.32
7.4.90.0030.01616.45
7.4.80.0120.00916.38
7.4.70.0110.00716.43
7.4.60.0100.00716.29
7.4.50.0000.00816.43
7.4.40.0040.01122.77
7.4.30.0130.00316.47
7.4.00.0100.00014.90
7.3.330.0050.00013.03
7.3.320.0020.00212.98
7.3.310.0030.00316.18
7.3.300.0030.00316.16
7.3.290.0070.01316.16
7.3.280.0090.00716.15
7.3.270.0080.00817.40
7.3.260.0060.01816.23
7.3.250.0090.00816.30
7.3.240.0120.00416.18
7.3.230.0090.00916.39
7.3.210.0070.01016.18
7.3.200.0120.00919.39
7.3.190.0090.00616.31
7.3.180.0110.00416.17
7.3.170.0070.01616.27
7.3.160.0130.00916.10
7.3.120.0100.00614.50
7.3.10.0100.01116.43
7.3.00.0100.01016.18
7.2.330.0140.00316.45
7.2.320.0090.00916.20
7.2.310.0120.00616.58
7.2.300.0040.01416.29
7.2.290.0060.00916.13
7.2.130.0130.00816.48
7.2.120.0110.00516.34
7.2.110.0080.00616.47
7.2.100.0080.00816.40
7.2.90.0140.00816.49
7.2.80.0060.00916.60
7.2.70.0120.01016.43
7.2.60.0100.00816.41
7.2.50.0030.01316.40
7.2.40.0120.00516.40
7.2.30.0130.00616.57
7.2.20.0090.01016.40
7.2.10.0120.00716.56
7.2.00.0080.00617.47
7.1.250.0110.00415.23
7.1.100.0040.00818.02
7.1.70.0000.00817.25
7.1.60.0060.00619.82
7.1.50.0060.01216.79
7.1.00.0100.08022.25
7.0.200.0030.01016.78
7.0.140.0030.07322.18
7.0.100.0030.06719.95
7.0.90.0030.04719.88
7.0.80.0070.07019.99
7.0.70.0070.03719.89
7.0.60.0030.08019.98
7.0.50.0200.06720.26
7.0.40.0070.04720.15
7.0.30.0030.04319.96
7.0.20.0030.04320.00
7.0.10.0000.06720.03
7.0.00.0030.04320.14
5.6.280.0030.07321.13
5.6.250.0030.04020.75
5.6.240.0030.04320.59
5.6.230.0070.04020.66
5.6.220.0030.04320.53
5.6.210.0100.08020.43
5.6.200.0030.06021.08
5.6.190.0070.04021.09
5.6.180.0070.04721.05
5.6.170.0070.05021.09
5.6.160.0130.05721.03
5.6.150.0070.04321.02
5.6.140.0100.04021.04
5.6.130.0030.04321.01
5.6.120.0030.04321.05
5.6.110.0030.04021.01
5.6.100.0030.04721.08
5.6.90.0170.07021.08
5.6.80.0130.07320.40
5.6.70.0130.07320.51
5.6.60.0030.08020.50
5.6.50.0070.08020.33
5.6.40.0100.07720.48
5.6.30.0030.08320.41
5.6.20.0070.07320.46
5.6.10.0030.05320.52
5.6.00.0100.07020.40
5.5.380.0030.04020.45
5.5.370.0000.04320.35
5.5.360.0100.04320.48
5.5.350.0030.04320.45
5.5.340.0000.05720.92
5.5.330.0100.07720.73
5.5.320.0070.07720.91
5.5.310.0070.06720.63
5.5.300.0100.03320.82
5.5.290.0100.05020.80
5.5.280.0100.08020.80
5.5.270.0030.07720.82
5.5.260.0070.08720.91
5.5.250.0170.07320.61
5.5.240.0100.07720.02
5.5.230.0070.08320.23
5.5.220.0100.07020.27
5.5.210.0070.08020.01
5.5.200.0030.08320.21
5.5.190.0000.08320.15
5.5.180.0130.07319.98
5.5.160.0070.06320.03
5.5.150.0170.06320.23
5.5.140.0070.07319.96
5.5.130.0070.04320.21
5.5.120.0100.06320.27
5.5.110.0070.08020.07
5.5.100.0070.08020.06
5.5.90.0070.05719.94
5.5.80.0070.07320.07
5.5.70.0170.06720.09
5.5.60.0070.08020.05
5.5.50.0130.07320.13
5.5.40.0030.08020.05
5.5.30.0030.06020.08
5.5.20.0100.07720.04
5.5.10.0100.07720.05
5.5.00.0030.08020.05
5.4.450.0070.03719.38
5.4.440.0130.05019.33
5.4.430.0130.06719.11
5.4.420.0030.08019.36
5.4.410.0130.04019.16
5.4.400.0230.04019.11
5.4.390.0130.07019.23
5.4.380.0100.07319.06
5.4.370.0200.06319.14
5.4.360.0030.06319.03
5.4.350.0100.07318.92
5.4.340.0100.04018.84
5.4.320.0100.05018.97
5.4.310.0170.06718.98
5.4.300.0000.07319.02
5.4.290.0130.07019.23
5.4.280.0030.07718.81
5.4.270.0030.07319.04
5.4.260.0100.06719.07
5.4.250.0100.06719.02
5.4.240.0070.06719.04
5.4.230.0100.07019.23
5.4.220.0200.06319.14
5.4.210.0070.07719.13
5.4.200.0070.07719.02
5.4.190.0000.08318.78
5.4.180.0100.06019.22
5.4.170.0070.07319.04
5.4.160.0100.07019.21
5.4.150.0030.07719.02
5.4.140.0070.07316.39
5.4.130.0100.06716.36
5.4.120.0070.06016.27
5.4.110.0070.06016.33
5.4.100.0070.07016.38
5.4.90.0130.06716.30
5.4.80.0130.07316.37
5.4.70.0000.04716.32
5.4.60.0000.08016.43
5.4.50.0130.04316.28
5.4.40.0070.07016.29
5.4.30.0000.07316.20
5.4.20.0100.05716.33
5.4.10.0000.06016.19
5.4.00.0100.06015.51
5.3.290.0070.06714.53
5.3.280.0030.08714.45
5.3.270.0030.07714.46
5.3.260.0130.07014.58
5.3.250.0070.04314.55
5.3.240.0070.06714.52
5.3.230.0070.07314.58
5.3.220.0100.07314.43
5.3.210.0130.07714.54
5.3.200.0100.06714.50
5.3.190.0030.08014.54
5.3.180.0030.07314.55
5.3.170.0000.08014.41
5.3.160.0070.08314.51
5.3.150.0070.04714.40
5.3.140.0070.06314.46
5.3.130.0070.07314.49
5.3.120.0100.07014.52
5.3.110.0100.07314.53
5.3.100.0100.06713.88
5.3.90.0030.07713.88
5.3.80.0100.07313.78
5.3.70.0200.06314.01
5.3.60.0000.08013.86
5.3.50.0070.06713.93
5.3.40.0070.07713.95
5.3.30.0030.07713.88
5.3.20.0130.06713.68
5.3.10.0100.06013.51
5.3.00.0170.06313.64
5.2.170.0070.06011.13
5.2.160.0070.03311.14
5.2.150.0070.03311.09
5.2.140.0000.04711.00
5.2.130.0030.06311.10
5.2.120.0070.06011.02
5.2.110.0030.06010.96
5.2.100.0070.06011.13
5.2.90.0070.06011.07
5.2.80.0070.06011.11
5.2.70.0130.05311.13
5.2.60.0030.06311.09
5.2.50.0030.05010.82
5.2.40.0100.05310.85
5.2.30.0070.06010.98
5.2.20.0030.06310.95
5.2.10.0170.05010.93
5.2.00.0070.06310.74
5.1.60.0100.04310.01
5.1.50.0000.03710.04
5.1.40.0000.0579.97
5.1.30.0130.04310.40
5.1.20.0070.04710.26
5.1.10.0030.03010.13
5.1.00.0030.05310.11
5.0.50.0030.0338.87
5.0.40.0100.0378.87
5.0.30.0030.0638.87
5.0.20.0030.0438.87
5.0.10.0100.0378.87
5.0.00.0030.0678.87
4.4.90.0000.0408.87
4.4.80.0070.0338.87
4.4.70.0000.0378.87
4.4.60.0000.0308.87
4.4.50.0030.0178.87
4.4.40.0000.0578.87
4.4.30.0030.0308.87
4.4.20.0000.0378.87
4.4.10.0000.0378.87
4.4.00.0000.0508.87
4.3.110.0000.0338.87
4.3.100.0000.0378.87
4.3.90.0030.0378.87
4.3.80.0000.0538.87
4.3.70.0000.0238.87
4.3.60.0100.0308.87
4.3.50.0070.0308.87
4.3.40.0000.0508.87
4.3.30.0030.0378.87
4.3.20.0100.0238.87
4.3.10.0000.0338.87
4.3.00.0000.0338.87

preferences:
46 ms | 400 KiB | 5 Q