3v4l.org

run code in 300+ PHP versions simultaneously
<?php function do_split($name) { return preg_split('/(([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)
5.4.310.0070.03912.52
5.4.300.0070.03812.52
5.4.290.0050.03912.52
5.4.280.0050.03712.41
5.4.270.0090.03312.42
5.4.260.0060.03812.41
5.4.250.0060.03812.41
5.4.240.0060.03612.42
5.4.230.0030.04112.41
5.4.220.0070.03712.41
5.4.210.0070.03612.41
5.4.200.0060.04312.41
5.4.190.0070.03612.41
5.4.180.0060.03612.41
5.4.170.0040.03912.41
5.4.160.0100.03212.41
5.4.150.0060.04212.40
5.4.140.0080.04012.09
5.4.130.0050.04012.07
5.4.120.0090.03412.04
5.4.110.0070.03512.04
5.4.100.0060.03512.04
5.4.90.0060.03812.03
5.4.80.0060.04612.04
5.4.70.0070.04612.03
5.4.60.0070.04412.03
5.4.50.0060.04712.03
5.4.40.0110.04812.02
5.4.30.0210.08612.02
5.4.20.0160.06612.01
5.4.10.0040.03912.02
5.4.00.0080.03811.51
5.3.280.0050.04212.71
5.3.270.0070.04712.72
5.3.260.0080.04112.72
5.3.250.0060.04912.72
5.3.240.0050.04312.72
5.3.230.0060.04512.71
5.3.220.0090.03812.68
5.3.210.0140.04312.68
5.3.200.0100.04212.68
5.3.190.0060.04012.67
5.3.180.0060.03912.67
5.3.170.0070.04612.67
5.3.160.0050.04112.67
5.3.150.0080.04612.68
5.3.140.0090.03812.66
5.3.130.0050.04112.66
5.3.120.0090.03712.66
5.3.110.0050.04112.66
5.3.100.0090.03712.12
5.3.90.0100.04512.11
5.3.80.0070.04312.11
5.3.70.0050.04012.11
5.3.60.0040.03912.09
5.3.50.0090.03512.03
5.3.40.0050.03712.03
5.3.30.0040.04511.99
5.3.20.0070.03711.77
5.3.10.0150.02811.74
5.3.00.0060.03611.73
5.2.170.0050.0309.22
5.2.160.0080.0269.22
5.2.150.0060.0299.22
5.2.140.0040.0319.22
5.2.130.0060.0289.18
5.2.120.0010.0319.18
5.2.110.0080.0249.19
5.2.100.0090.0249.18
5.2.90.0070.0279.18
5.2.80.0040.0349.18
5.2.70.0030.0449.18
5.2.60.0090.0379.14
5.2.50.0070.0389.11
5.2.40.0100.0319.08
5.2.30.0070.0339.05
5.2.20.0060.0299.05
5.2.10.0050.0328.95
5.2.00.0070.0388.82
5.1.60.0040.0268.10
5.1.50.0030.0288.09
5.1.40.0070.0228.07
5.1.30.0040.0278.42
5.1.20.0020.0298.45
5.1.10.0040.0288.17
5.1.00.0040.0328.18
5.0.50.0040.0216.64
5.0.40.0040.0206.50
5.0.30.0080.0376.32
5.0.20.0050.0186.28
5.0.10.0050.0216.27
5.0.00.0090.0296.26
4.4.90.0050.0144.78
4.4.80.0020.0174.76
4.4.70.0030.0164.76
4.4.60.0040.0154.75
4.4.50.0020.0164.77
4.4.40.0020.0264.71
4.4.30.0030.0154.76
4.4.20.0020.0174.84
4.4.10.0030.0164.85
4.4.00.0040.0244.76
4.3.110.0050.0144.67
4.3.100.0070.0154.66
4.3.90.0020.0254.64
4.3.80.0040.0234.58
4.3.70.0030.0164.63
4.3.60.0030.0184.63
4.3.50.0040.0184.63
4.3.40.0030.0264.54
4.3.30.0030.0163.31
4.3.20.0070.0213.29
4.3.10.0020.0163.25
4.3.00.0000.0237.21

preferences:
132.57 ms | 1394 KiB | 7 Q