3v4l.org

run code in 300+ PHP versions simultaneously
<?php function do_split($name) { return preg_split('/([A-Z]+|([A-Z][^A-Z]*))/', $name, null, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY); } function convert_case($name) { return implode( '_', array_map( 'strtolower', do_split($name) ) ); } $samples = array( 'FooBar', 'FooBAR', 'FOObar', ); print_r(array_map(function ($name) { return array( 'name' => $name, 'split' => do_split($name), 'converted' => convert_case($name), ); }, $samples));

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)
8.3.60.0140.00718.52
8.3.50.0120.00522.20
8.3.40.0150.00018.96
8.3.30.0040.01119.00
8.3.20.0040.00420.20
8.3.10.0070.00021.76
8.3.00.0060.00317.91
8.2.180.0150.00716.63
8.2.170.0130.00722.96
8.2.160.0150.00320.53
8.2.150.0080.00024.18
8.2.140.0000.00824.66
8.2.130.0070.00026.16
8.2.120.0070.00020.92
8.2.110.0110.00022.25
8.2.100.0030.01017.97
8.2.90.0060.00320.42
8.2.80.0040.00419.91
8.2.70.0000.00817.93
8.2.60.0040.00418.34
8.2.50.0030.00618.10
8.2.40.0060.00319.45
8.2.30.0030.00618.35
8.2.20.0040.00417.84
8.2.10.0030.00518.14
8.2.00.0030.00517.87
8.1.280.0100.00325.92
8.1.270.0090.00023.83
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0120.00022.47
8.1.230.0070.00321.02
8.1.220.0080.00017.77
8.1.210.0050.00318.90
8.1.200.0060.00317.48
8.1.190.0080.00017.48
8.1.180.0050.00318.10
8.1.170.0040.00418.78
8.1.160.0000.00822.04
8.1.150.0000.00718.92
8.1.140.0040.00417.60
8.1.130.0000.00717.91
8.1.120.0030.00317.62
8.1.110.0040.00417.55
8.1.100.0000.00717.63
8.1.90.0030.00317.55
8.1.80.0050.00317.52
8.1.70.0030.00517.58
8.1.60.0040.00417.68
8.1.50.0000.00817.68
8.1.40.0000.00817.66
8.1.30.0040.00417.71
8.1.20.0000.00817.79
8.1.10.0030.00517.53
8.1.00.0080.00017.50
8.0.300.0030.00519.89
8.0.290.0000.00816.75
8.0.280.0040.00418.42
8.0.270.0000.00717.12
8.0.260.0030.00317.27
8.0.250.0070.00017.09
8.0.240.0040.00417.04
8.0.230.0030.00317.07
8.0.220.0070.00016.88
8.0.210.0030.00316.91
8.0.200.0070.00017.02
8.0.190.0060.00316.97
8.0.180.0050.00316.97
8.0.170.0050.00216.94
8.0.160.0070.00016.99
8.0.150.0040.00416.99
8.0.140.0000.00716.92
8.0.130.0030.00313.50
8.0.120.0030.00616.91
8.0.110.0050.00217.03
8.0.100.0000.00717.01
8.0.90.0070.00017.08
8.0.80.0000.01517.00
8.0.70.0040.00416.94
8.0.60.0000.00817.11
8.0.50.0040.00417.00
8.0.30.0110.00917.21
8.0.20.0080.01117.40
8.0.10.0050.00317.04
8.0.00.0060.01216.78
7.4.330.0050.00015.08
7.4.320.0030.00316.74
7.4.300.0000.00616.71
7.4.290.0030.00316.67
7.4.280.0030.00616.78
7.4.270.0070.00016.73
7.4.260.0040.00416.79
7.4.250.0050.00216.77
7.4.240.0030.00416.80
7.4.230.0000.00716.80
7.4.220.0000.01916.73
7.4.210.0150.00016.79
7.4.200.0070.00016.47
7.4.160.0000.01616.83
7.4.150.0060.01317.40
7.4.140.0130.00417.86
7.4.130.0090.00816.78
7.4.120.0150.00516.67
7.4.110.0090.01416.57
7.4.100.0110.00616.59
7.4.90.0130.00716.71
7.4.80.0150.00819.39
7.4.70.0070.01016.82
7.4.60.0130.00616.55
7.4.50.0030.00616.59
7.4.40.0160.00616.47
7.4.30.0130.00516.47
7.4.00.0040.01415.36
7.3.330.0030.00313.28
7.3.320.0050.00013.38
7.3.310.0040.00416.47
7.3.300.0030.00316.32
7.3.290.0130.00916.44
7.3.280.0040.01216.45
7.3.270.0090.00917.40
7.3.260.0090.00916.72
7.3.250.0110.00916.57
7.3.240.0150.00416.70
7.3.230.0140.00316.49
7.3.210.0000.01716.71
7.3.200.0060.01119.39
7.3.190.0120.00916.71
7.3.180.0030.01216.82
7.3.170.0170.00316.47
7.3.160.0100.00716.52
7.3.120.0090.00614.84
7.2.330.0060.01217.00
7.2.320.0070.01016.76
7.2.310.0030.01316.61
7.2.300.0110.00716.86
7.2.290.0030.01216.73
7.2.60.0160.00716.87
7.2.00.0000.01119.62
7.1.200.0000.01315.79
7.1.100.0000.01018.29
7.1.70.0000.00917.24
7.1.60.0150.01119.25
7.1.50.0040.00717.16
7.1.00.0030.07722.56
7.0.200.0000.00716.89
7.0.140.0030.07322.07
7.0.60.0130.07320.08
7.0.50.0100.07717.94
7.0.40.0070.04020.32
7.0.30.0200.05320.25
7.0.20.0200.04020.27
7.0.10.0070.06020.22
7.0.00.0130.08020.34
5.6.280.0000.07721.16
5.6.210.0100.08020.54
5.6.200.0000.04318.20
5.6.190.0030.05020.63
5.6.180.0230.06320.46
5.6.170.0200.06720.41
5.6.160.0070.08020.45
5.6.150.0100.07318.19
5.6.140.0000.04318.27
5.6.130.0070.08018.18
5.6.120.0070.08721.03
5.6.110.0070.05020.90
5.6.100.0130.07721.03
5.6.90.0000.09320.96
5.6.80.0030.06720.49
5.5.350.4100.04720.45
5.5.340.0030.04317.99
5.5.330.0170.08320.46
5.5.320.0270.06020.25
5.5.310.0270.03020.35
5.5.300.0130.07317.98
5.5.290.0100.08317.97
5.5.280.0100.03320.67
5.5.270.0100.03720.68
5.5.260.0070.07320.77
5.5.250.0200.07320.55
5.5.240.0100.03020.16
5.4.450.0800.05719.46
5.4.440.0330.06019.70
5.4.430.0070.07019.57
5.4.420.0130.06019.55
5.4.410.0130.06719.00
5.4.400.0430.05318.87
5.4.390.0300.05318.54
5.4.380.0230.05018.57
5.4.370.0070.05318.60
5.4.360.0030.04018.63
5.4.350.0060.03712.02
5.4.340.0070.04112.02
5.4.320.0100.04912.51
5.4.310.0050.03912.50
5.4.300.0090.03412.51
5.4.290.0020.04212.50
5.4.280.0060.03612.40
5.4.270.0060.03612.40
5.4.260.0080.03712.40
5.4.250.0050.03912.40
5.4.240.0060.03612.40
5.4.230.0060.03812.39
5.4.220.0100.03212.40
5.4.210.0070.03512.39
5.4.200.0010.04312.39
5.4.190.0040.03812.39
5.4.180.0050.03712.39
5.4.170.0080.03412.40
5.4.160.0090.03212.39
5.4.150.0070.03412.39
5.4.140.0040.04012.08
5.4.130.0090.03312.06
5.4.120.0070.03812.02
5.4.110.0100.03212.02
5.4.100.0080.03312.01
5.4.90.0090.03412.02
5.4.80.0070.03712.02
5.4.70.0100.04812.01
5.4.60.0030.04112.02
5.4.50.0070.03812.01
5.4.40.0050.03612.00
5.4.30.0100.04312.00
5.4.20.0040.04212.00
5.4.10.0090.03212.00
5.4.00.0100.04411.48
5.3.290.0050.04212.80
5.3.280.0080.04012.71
5.3.270.0070.03912.73
5.3.260.0040.04212.72
5.3.250.0020.04212.72
5.3.240.0110.03312.72
5.3.230.0060.03812.71
5.3.220.0030.04212.68
5.3.210.0080.04012.68
5.3.200.0030.04112.68
5.3.190.0040.04212.68
5.3.180.0070.03712.68
5.3.170.0060.03812.67
5.3.160.0050.03812.68
5.3.150.0050.03812.67
5.3.140.0080.03712.66
5.3.130.0080.03912.66
5.3.120.0070.03912.66
5.3.110.0080.03712.66
5.3.100.0090.03512.13
5.3.90.0060.03812.11
5.3.80.0050.03912.11
5.3.70.0070.04612.11
5.3.60.0050.03812.09
5.3.50.0100.03812.04
5.3.40.0100.03312.04
5.3.30.0060.04112.00
5.3.20.0060.03511.78
5.3.10.0100.03711.75
5.3.00.0040.04211.74
5.2.170.0050.0389.22
5.2.160.0080.0349.22
5.2.150.0060.0329.23
5.2.140.0050.0319.22
5.2.130.0030.0309.18
5.2.120.0060.0279.18
5.2.110.0040.0299.19
5.2.100.0060.0279.18
5.2.90.0050.0289.18
5.2.80.0060.0319.18
5.2.70.0030.0329.18
5.2.60.0040.0319.14
5.2.50.0050.0309.11
5.2.40.0060.0289.09
5.2.30.0050.0309.05
5.2.20.0040.0309.05
5.2.10.0080.0268.95
5.2.00.0030.0308.81
5.1.60.0060.0228.09
5.1.50.0050.0248.09
5.1.40.0060.0228.07
5.1.30.0030.0278.42
5.1.20.0040.0278.45
5.1.10.0050.0258.17
5.1.00.0050.0258.17
5.0.50.0030.0216.64
5.0.40.0020.0216.50
5.0.30.0050.0306.32
5.0.20.0060.0186.29
5.0.10.0030.0206.27
5.0.00.0040.0306.26
4.4.90.0030.0164.77
4.4.80.0020.0164.75
4.4.70.0020.0164.75
4.4.60.0030.0154.75
4.4.50.0020.0164.77
4.4.40.0020.0264.71
4.4.30.0020.0164.76
4.4.20.0020.0164.84
4.4.10.0040.0144.85
4.4.00.0030.0244.76
4.3.110.0020.0174.67
4.3.100.0010.0164.66
4.3.90.0020.0154.63
4.3.80.0050.0264.58
4.3.70.0030.0144.63
4.3.60.0020.0154.63
4.3.50.0030.0154.63
4.3.40.0020.0354.54
4.3.30.0020.0193.31
4.3.20.0020.0183.29
4.3.10.0010.0193.24
4.3.00.0130.0207.21

preferences:
39.22 ms | 401 KiB | 5 Q