3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = function($string) { return preg_replace_callback( '/_([a-z])/', function ($string) { return strtoupper($string[1]); }, $string ); } echo $a('IT_Solutions_Urgency_to_Change');

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)
5.4.320.0070.04712.53
5.4.310.0070.04712.52
5.4.300.0050.04212.52
5.4.290.0130.04312.52
5.4.280.0090.03512.41
5.4.270.0090.03612.41
5.4.260.0070.03812.42
5.4.250.0060.04012.42
5.4.240.0060.03812.42
5.4.230.0070.04212.41
5.4.220.0090.03312.41
5.4.210.0110.03712.41
5.4.200.0080.04012.41
5.4.190.0080.03412.40
5.4.180.0070.04012.41
5.4.170.0070.03812.41
5.4.160.0080.03812.40
5.4.150.0060.03812.40
5.4.140.0080.03612.09
5.4.130.0080.03912.07
5.4.120.0070.03812.04
5.4.110.0080.03612.03
5.4.100.0100.03312.04
5.4.90.0050.04212.03
5.4.80.0080.04512.03
5.4.70.0090.03512.03
5.4.60.0070.03512.03
5.4.50.0080.04812.03
5.4.40.0030.04412.02
5.4.30.0050.03712.02
5.4.20.0030.04212.01
5.4.10.0090.03612.01
5.4.00.0060.04711.50
5.3.290.0080.04012.80
5.3.280.0050.03912.71
5.3.270.0050.04112.72
5.3.260.0080.03812.72
5.3.250.0050.04012.72
5.3.240.0090.03512.72
5.3.230.0070.03712.71
5.3.220.0050.04012.68
5.3.210.0090.04412.68
5.3.200.0090.04112.68
5.3.190.0090.03712.68
5.3.180.0090.03812.68
5.3.170.0060.03812.67
5.3.160.0080.03512.68
5.3.150.0080.04112.67
5.3.140.0080.03812.66
5.3.130.0100.05012.65
5.3.120.0070.04412.66
5.3.110.0140.05712.65
5.3.100.0150.03812.13
5.3.90.0060.05012.11
5.3.80.0020.04212.10
5.3.70.0040.04012.10
5.3.60.0040.03912.09
5.3.50.0080.03612.03
5.3.40.0120.03012.03
5.3.30.0060.03611.99
5.3.20.0060.03611.77
5.3.10.0080.03711.74
5.3.00.0100.03411.73
5.2.170.0050.0309.18
5.2.160.0050.0309.18
5.2.150.0040.0319.18
5.2.140.0080.0269.18
5.2.130.0050.0309.14
5.2.120.0010.0339.14
5.2.110.0030.0319.15
5.2.100.0030.0319.14
5.2.90.0040.0319.14
5.2.80.0080.0309.14
5.2.70.0090.0279.14
5.2.60.0050.0339.09
5.2.50.0070.0279.05
5.2.40.0060.0279.03
5.2.30.0040.0319.01
5.2.20.0050.0349.00
5.2.10.0060.0288.93
5.2.00.0040.0308.78
5.1.60.0080.0268.06
5.1.50.0070.0248.06
5.1.40.0090.0228.05
5.1.30.0030.0298.39
5.1.20.0040.0288.41
5.1.10.0060.0308.14
5.1.00.0040.0278.14
5.0.50.0060.0196.62
5.0.40.0040.0186.48
5.0.30.0030.0326.29
5.0.20.0040.0206.26
5.0.10.0010.0226.23
5.0.00.0020.0326.23
4.4.90.0020.0164.78
4.4.80.0020.0164.76
4.4.70.0040.0154.75
4.4.60.0020.0164.76
4.4.50.0020.0164.77
4.4.40.0040.0244.71
4.4.30.0020.0164.76
4.4.20.0030.0164.85
4.4.10.0050.0144.85
4.4.00.0030.0304.76
4.3.110.0030.0214.67
4.3.100.0050.0194.66
4.3.90.0030.0174.64
4.3.80.0000.0294.59
4.3.70.0040.0144.63
4.3.60.0050.0144.63
4.3.50.0030.0164.63
4.3.40.0060.0234.54
4.3.30.0030.0153.28
4.3.20.0040.0153.26
4.3.10.0030.0143.22
4.3.00.0100.01016.50

preferences:
141.01 ms | 1394 KiB | 7 Q