3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = function($string) { return preg_replace_callback( '/_([a-z])/i', function ($string) { return strtoupper($string[1]); }, ucfirst(strtolower($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)
8.3.60.0000.01418.43
8.3.50.0140.00922.05
8.3.40.0040.01118.90
8.3.30.0030.01019.13
8.3.20.0040.00420.18
8.3.10.0040.00420.73
8.3.00.0060.00319.38
8.2.180.0060.00916.46
8.2.170.0110.00422.96
8.2.160.0100.00320.52
8.2.150.0000.00824.18
8.2.140.0030.00524.66
8.2.130.0080.00026.16
8.2.120.0040.00422.26
8.2.110.0070.00320.35
8.2.100.0070.00418.04
8.2.90.0080.00018.16
8.2.80.0060.00317.97
8.2.70.0100.00717.84
8.2.60.0000.00818.03
8.2.50.0080.00018.07
8.2.40.0040.00418.22
8.2.30.0030.00518.07
8.2.20.0030.00617.81
8.2.10.0040.00418.15
8.2.00.0040.00417.77
8.1.280.0110.01125.92
8.1.270.0000.00823.96
8.1.260.0020.00526.35
8.1.250.0040.00428.09
8.1.240.0080.00322.21
8.1.230.0070.00420.97
8.1.220.0040.00417.78
8.1.210.0050.00318.89
8.1.200.0060.00317.47
8.1.190.0080.00017.48
8.1.180.0040.00418.10
8.1.170.0040.00418.84
8.1.160.0040.00421.92
8.1.150.0000.00718.79
8.1.140.0040.00417.61
8.1.130.0070.00017.77
8.1.120.0000.00717.60
8.1.110.0040.00417.62
8.1.100.0000.00717.49
8.1.90.0050.00217.66
8.1.80.0040.00417.60
8.1.70.0050.00217.59
8.1.60.0030.00617.80
8.1.50.0000.00817.57
8.1.40.0000.00717.59
8.1.30.0030.00617.63
8.1.20.0000.00817.86
8.1.10.0040.00417.62
8.1.00.0080.00017.71
8.0.300.0070.00020.02
8.0.290.0040.00416.75
8.0.280.0070.00018.38
8.0.270.0000.00717.25
8.0.260.0060.00017.39
8.0.250.0000.00717.09
8.0.240.0030.00317.00
8.0.230.0000.00717.02
8.0.220.0030.00317.03
8.0.210.0000.00716.94
8.0.200.0070.00017.13
8.0.190.0080.00317.13
8.0.180.0040.00417.08
8.0.170.0060.00316.97
8.0.160.0050.00316.95
8.0.150.0040.00417.05
8.0.140.0060.00317.01
8.0.130.0050.00013.49
8.0.120.0000.00816.89
8.0.110.0040.00416.94
8.0.100.0070.00017.15
8.0.90.0000.00817.11
8.0.80.0090.00617.04
8.0.70.0070.00016.95
8.0.60.0090.00017.00
8.0.50.0070.00016.90
8.0.30.0090.01117.22
8.0.20.0100.00917.50
8.0.10.0000.00816.97
8.0.00.0130.00816.77
7.4.330.0050.00015.17
7.4.320.0060.00016.82
7.4.300.0000.00716.73
7.4.290.0000.00716.74
7.4.280.0040.00416.81
7.4.270.0000.00716.74
7.4.260.0070.00016.75
7.4.250.0040.00416.75
7.4.240.0060.00216.78
7.4.230.0030.00316.70
7.4.220.0160.01016.86
7.4.210.0060.00916.75
7.4.200.0040.00416.63
7.4.160.0150.00716.77
7.4.150.0070.01817.40
7.4.140.0080.00917.86
7.4.130.0090.00916.70
7.4.120.0080.00816.61
7.4.110.0150.00616.85
7.4.100.0000.01616.80
7.4.90.0100.00716.60
7.4.80.0090.00919.39
7.4.70.0100.00716.97
7.4.60.0070.01016.79
7.4.50.0000.00416.48
7.4.40.0090.01416.77
7.4.30.0100.00716.85
7.4.00.0110.00715.04
7.3.330.0000.00613.42
7.3.320.0000.00513.46
7.3.310.0070.00016.43
7.3.300.0000.00716.32
7.3.290.0060.00916.31
7.3.280.0110.00916.42
7.3.270.0040.01517.40
7.3.260.0110.01416.44
7.3.250.0130.00616.57
7.3.240.0100.00716.40
7.3.230.0090.01316.63
7.3.210.0070.01016.51
7.3.200.0100.01319.39
7.3.190.0090.00816.44
7.3.180.0120.00316.74
7.3.170.0090.01216.52
7.3.160.0030.01416.80
7.2.330.0140.00316.78
7.2.320.0130.00416.73
7.2.310.0060.01616.73
7.2.300.0110.01116.84
7.2.290.0090.01216.65
7.2.60.0000.00717.05
7.2.00.0200.00819.09
7.1.200.0120.00316.01
7.1.100.0030.01218.09
7.1.70.0000.00817.52
7.1.60.0130.01019.32
7.1.50.0130.00616.92
7.1.00.0070.07322.37
7.0.200.0000.00916.59
7.0.140.0000.07722.15
7.0.60.0070.03719.93
7.0.50.0100.06717.88
7.0.40.0070.08720.06
7.0.30.0470.07020.10
7.0.20.0130.05020.08
7.0.10.0100.06320.11
7.0.00.0130.06020.27
5.6.280.0070.08721.12
5.6.210.0070.08020.56
5.6.200.0100.08018.24
5.6.190.0030.04320.48
5.6.180.0430.06720.52
5.6.170.0230.05720.45
5.6.160.0000.09320.52
5.6.150.0070.07318.19
5.6.140.0100.08318.17
5.6.130.0070.05018.18
5.6.120.0070.04020.80
5.6.110.0130.08320.90
5.6.100.0030.07721.02
5.6.90.0030.07321.14
5.6.80.0030.06720.54
5.5.350.0230.07320.41
5.5.340.0100.08017.98
5.5.330.0070.04020.57
5.5.320.0230.04020.24
5.5.310.0370.07020.19
5.5.300.0070.03717.97
5.5.290.0030.08318.04
5.5.280.0030.08720.84
5.5.270.0070.05720.73
5.5.260.0130.06320.63
5.5.250.0070.05720.70
5.5.240.0200.07320.29
5.4.450.0970.04319.47
5.4.440.1000.05019.57
5.4.430.0800.05019.16
5.4.420.0670.00019.42
5.4.410.0670.00019.28
5.4.400.0630.00019.03
5.4.390.0730.00019.24
5.4.380.0700.00019.16
5.4.370.0600.00019.13
5.4.360.0600.00019.04
5.4.350.0630.00019.25
5.4.340.0630.00019.12
5.4.320.0110.03512.51
5.4.310.0060.04012.50
5.4.300.0080.03612.51
5.4.290.0090.03712.50
5.4.280.0080.03812.40
5.4.270.0080.03612.40
5.4.260.0090.03912.40
5.4.250.0060.04312.40
5.4.240.0100.04212.40
5.4.230.0100.04212.39
5.4.220.0060.04312.39
5.4.210.0110.03912.39
5.4.200.0080.05012.39
5.4.190.0080.04612.39
5.4.180.0070.04212.39
5.4.170.0070.03612.39
5.4.160.0040.04012.40
5.4.150.0060.04012.39
5.4.140.0070.03712.07
5.4.130.0080.03512.06
5.4.120.0090.03612.02
5.4.110.0090.04312.02
5.4.100.0110.03612.02
5.4.90.0070.04212.02
5.4.80.0090.04312.01
5.4.70.0090.04012.02
5.4.60.0070.03812.01
5.4.50.0100.03712.01
5.4.40.0090.04412.00
5.4.30.0100.04612.00
5.4.20.0110.03812.00
5.4.10.0060.04111.99
5.4.00.0080.04111.48
5.3.290.0060.03912.80
5.3.280.0080.04312.71
5.3.270.0130.04612.73
5.3.260.0070.04012.72
5.3.250.0070.04312.72
5.3.240.0050.04012.72
5.3.230.0100.03412.71
5.3.220.0040.03912.68
5.3.210.0060.04012.68
5.3.200.0070.04612.68
5.3.190.0050.04012.68
5.3.180.0090.04512.68
5.3.170.0070.04112.67
5.3.160.0110.03112.67
5.3.150.0070.04212.67
5.3.140.0050.03612.66
5.3.130.0040.04112.66
5.3.120.0090.04012.66
5.3.110.0070.03812.66
5.3.100.0080.03612.13
5.3.90.0050.03712.11
5.3.80.0100.03312.11
5.3.70.0100.03812.11
5.3.60.0040.04112.09
5.3.50.0070.03612.04
5.3.40.0050.03812.04
5.3.30.0060.03811.99
5.3.20.0070.04611.78
5.3.10.0030.03811.74
5.3.00.0020.03911.74
5.2.170.0040.0309.18
5.2.160.0040.0289.18
5.2.150.0070.0279.18
5.2.140.0020.0349.18
5.2.130.0060.0289.14
5.2.120.0060.0279.14
5.2.110.0000.0339.15
5.2.100.0030.0329.14
5.2.90.0040.0309.14
5.2.80.0060.0359.14
5.2.70.0040.0309.14
5.2.60.0050.0319.09
5.2.50.0050.0329.06
5.2.40.0060.0339.04
5.2.30.0040.0339.01
5.2.20.0070.0279.00
5.2.10.0070.0278.93
5.2.00.0070.0328.79
5.1.60.0030.0258.07
5.1.50.0070.0218.07
5.1.40.0050.0248.05
5.1.30.0050.0308.40
5.1.20.0050.0258.42
5.1.10.0040.0338.14
5.1.00.0040.0258.14
5.0.50.0040.0206.63
5.0.40.0020.0226.48
5.0.30.0030.0346.29
5.0.20.0040.0196.27
5.0.10.0040.0266.23
5.0.00.0030.0376.23
4.4.90.0030.0154.78
4.4.80.0010.0174.75
4.4.70.0040.0174.75
4.4.60.0030.0144.75
4.4.50.0020.0164.77
4.4.40.0020.0264.71
4.4.30.0040.0144.76
4.4.20.0050.0174.84
4.4.10.0010.0214.84
4.4.00.0020.0254.76
4.3.110.0030.0154.66
4.3.100.0030.0174.67
4.3.90.0050.0164.63
4.3.80.0050.0304.59
4.3.70.0050.0124.63
4.3.60.0020.0154.63
4.3.50.0030.0154.63
4.3.40.0030.0304.54
4.3.30.0030.0153.29
4.3.20.0020.0173.26
4.3.10.0010.0213.22
4.3.00.0000.01716.50

preferences:
51.82 ms | 401 KiB | 5 Q