3v4l.org

run code in 300+ PHP versions simultaneously
<?php function to_camel_case($str) { $str = strtolower($str); return preg_replace_callback('/_([a-z])/', function(array $match) { return strtoupper($match[1]); }, $str); } echo to_camel_case($key = 'me_ApetEce_COM-ER_algo_jajjajaj');

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)
8.3.40.0150.00019.00
8.3.30.0070.00720.18
8.3.20.0000.00820.35
8.3.10.0040.00421.09
8.3.00.0080.00022.40
8.2.170.0100.00622.96
8.2.160.0110.00322.37
8.2.150.0040.00424.18
8.2.140.0050.00324.66
8.2.130.0000.00826.16
8.2.120.0080.00020.89
8.2.110.0000.00922.36
8.2.100.0070.00418.22
8.2.90.0050.00317.88
8.2.80.0040.00417.97
8.2.70.0050.00318.16
8.2.60.0040.00418.05
8.2.50.0040.00418.10
8.2.40.0030.00620.27
8.2.30.0040.00419.46
8.2.20.0000.00817.93
8.2.10.0030.00617.96
8.2.00.0000.01017.78
8.1.270.0050.00323.99
8.1.260.0080.00026.35
8.1.250.0080.00028.09
8.1.240.0050.00522.24
8.1.230.0000.01119.01
8.1.220.0080.00317.74
8.1.210.0040.00418.77
8.1.200.0100.00017.48
8.1.190.0080.00017.35
8.1.180.0040.00418.10
8.1.170.0030.00618.70
8.1.160.0040.00418.84
8.1.150.0080.00018.75
8.1.140.0000.00717.52
8.1.130.0040.00417.86
8.1.120.0040.00417.66
8.1.110.0050.00317.48
8.1.100.0000.00717.58
8.1.90.0050.00217.52
8.1.80.0000.00717.63
8.1.70.0000.00717.56
8.1.60.0080.00017.64
8.1.50.0000.00817.67
8.1.40.0030.00517.70
8.1.30.0040.00417.68
8.1.20.0050.00317.82
8.1.10.0040.00417.75
8.1.00.0000.00817.71
8.0.300.0040.00419.77
8.0.290.0080.00016.75
8.0.280.0000.00818.46
8.0.270.0000.00717.27
8.0.260.0040.00417.02
8.0.250.0030.00317.13
8.0.240.0060.00317.13
8.0.230.0030.00317.03
8.0.220.0040.00416.96
8.0.210.0000.00716.99
8.0.200.0030.00316.98
8.0.190.0040.00417.14
8.0.180.0000.00717.05
8.0.170.0030.00417.06
8.0.160.0030.00316.97
8.0.150.0000.00816.97
8.0.140.0100.00016.96
8.0.130.0030.00313.52
8.0.120.0060.00317.01
8.0.110.0030.00516.95
8.0.100.0040.00417.07
8.0.90.0070.00017.02
8.0.80.0070.01017.09
8.0.70.0000.00716.85
8.0.60.0000.00717.00
8.0.50.0000.00816.99
8.0.30.0090.00917.11
8.0.20.0130.00617.40
8.0.10.0000.00717.19
8.0.00.0140.00816.86
7.4.330.0000.00516.79
7.4.320.0070.00016.75
7.4.300.0030.00316.75
7.4.290.0030.00316.61
7.4.280.0070.00016.70
7.4.270.0070.00016.64
7.4.260.0030.00313.46
7.4.250.0050.00516.69
7.4.240.0000.00716.64
7.4.230.0030.00316.90
7.4.220.0180.00016.74
7.4.210.0110.00616.77
7.4.200.0070.00016.92
7.4.190.0040.00416.75
7.4.160.0080.00816.63
7.4.150.0090.00917.40
7.4.140.0140.00417.86
7.4.130.0110.00816.57
7.4.120.0100.00716.68
7.4.110.0100.00716.66
7.4.100.0140.01116.63
7.4.90.0100.01416.81
7.4.80.0110.00719.39
7.4.70.0040.01216.61
7.4.60.0130.00316.55
7.4.50.0090.00016.61
7.4.40.0040.01222.77
7.4.30.0030.01416.72
7.4.10.0120.00915.02
7.4.00.0020.01415.23
7.3.330.0020.00213.30
7.3.320.0030.00313.28
7.3.310.0070.00016.47
7.3.300.0040.00416.30
7.3.290.0130.00716.37
7.3.280.0080.00916.41
7.3.270.0190.00017.40
7.3.260.0070.01418.24
7.3.250.0100.01116.50
7.3.240.0080.00816.38
7.3.230.0130.00316.67
7.3.210.0040.01416.56
7.3.200.0090.00919.39
7.3.190.0070.01416.86
7.3.180.0100.00616.54
7.3.170.0140.00716.51
7.3.160.0160.00316.35
7.3.130.0030.01514.66
7.3.120.0060.00814.98
7.3.110.0030.01515.02
7.3.100.0070.00714.80
7.3.90.0030.01314.89
7.3.80.0100.00615.05
7.3.70.0000.01615.04
7.3.60.0030.00714.99
7.3.50.0030.00614.91
7.3.40.0070.00714.56
7.3.30.0080.00814.96
7.3.20.0030.01016.57
7.3.10.0080.00516.80
7.3.00.0100.00516.52
7.2.330.0070.01116.97
7.2.320.0090.01516.89
7.2.310.0030.00716.89
7.2.300.0090.00916.79
7.2.290.0060.01016.64
7.2.260.0030.01315.22
7.2.250.0070.01015.37
7.2.240.0060.01115.25
7.2.230.0070.01015.04
7.2.220.0000.01815.47
7.2.210.0090.00615.33
7.2.200.0000.01314.95
7.2.190.0000.01915.27
7.2.180.0030.01015.17
7.2.170.0060.00615.27
7.2.160.0090.00315.21
7.2.150.0030.00917.08
7.2.140.0030.00817.18
7.2.130.0080.00916.98
7.2.120.0050.00817.09
7.2.110.0110.00517.13
7.2.100.0060.00817.05
7.2.90.0110.00517.11
7.2.80.0050.00917.01
7.2.70.0120.00817.11
7.2.60.0080.01017.07
7.2.50.0060.01317.07
7.2.40.0090.00316.89
7.2.30.0110.00517.04
7.2.20.0070.00817.16
7.2.10.0080.00717.11
7.2.00.0040.01017.87
7.1.330.0060.00615.68
7.1.320.0100.00715.93
7.1.310.0060.00815.92
7.1.300.0000.01415.88
7.1.290.0060.00615.58
7.1.280.0080.00315.85
7.1.270.0000.01516.14
7.1.260.0080.00815.77
7.1.250.0020.00915.92
7.1.240.0040.01116.10
7.1.230.0070.00416.07
7.1.220.0040.00816.10
7.1.210.0080.00316.13
7.1.200.0040.01116.15
7.1.190.0060.01016.11
7.1.180.0030.01216.06
7.1.170.0040.00415.62
7.1.160.0120.00316.04
7.1.150.0030.01215.93
7.1.140.0040.00815.89
7.1.130.0040.01115.86
7.1.120.0030.00915.77
7.1.110.0060.00916.00
7.1.100.0060.00617.08
7.1.90.0040.00715.88
7.1.80.0070.01115.92
7.1.70.0090.00516.77
7.1.60.0110.00817.65
7.1.50.0090.00516.60
7.1.40.0000.01415.82
7.1.30.0100.00715.85
7.1.20.0100.00715.75
7.1.10.0070.00715.94
7.1.00.0030.02319.03
7.0.330.0150.00015.63
7.0.320.0150.00015.78
7.0.310.0030.00915.63
7.0.300.0070.00415.54
7.0.290.0150.00015.60
7.0.280.0000.01015.54
7.0.270.0110.00415.59
7.0.260.0060.00915.48
7.0.250.0090.00615.46
7.0.240.0040.00915.64
7.0.230.0040.00715.53
7.0.220.0090.00615.57
7.0.210.0060.01015.25
7.0.200.0160.00115.97
7.0.190.0040.00815.53
7.0.180.0060.00315.77
7.0.170.0080.00415.58
7.0.160.0130.00015.55
7.0.150.0070.00315.46
7.0.140.0040.04118.68
7.0.130.0090.00315.51
7.0.120.0040.01115.71
7.0.110.0100.00715.71
7.0.100.0070.04517.85
7.0.90.0050.04617.68
7.0.80.0050.04717.77
7.0.70.0110.04017.78
7.0.60.0050.04717.80
7.0.50.0110.04218.00
7.0.40.0050.04316.66
7.0.30.0050.04316.77
7.0.20.0080.03316.93
7.0.10.0090.04316.84
7.0.00.0070.04316.76
5.6.400.0110.00414.15
5.6.390.0040.00414.25
5.6.380.0090.00614.73
5.6.370.0030.01014.18
5.6.360.0040.00714.66
5.6.350.0080.00314.58
5.6.340.0030.00914.57
5.6.330.0070.00714.51
5.6.320.0030.00614.63
5.6.310.0030.01213.92
5.6.300.0040.01114.52
5.6.290.0090.00614.30
5.6.280.0050.04017.80
5.6.270.0070.00714.19
5.6.260.0030.01014.84
5.6.250.0030.04717.35
5.6.240.0070.04617.54
5.6.230.0080.04317.56
5.6.220.0060.04117.63
5.6.210.0030.02517.61
5.6.200.0090.04117.68
5.6.190.0130.03517.77
5.6.180.0100.03917.85
5.6.170.0050.05017.73
5.6.160.0050.04717.82
5.6.150.0080.04217.62
5.6.140.0050.04817.78
5.6.130.0080.04117.62
5.6.120.0100.04317.65
5.6.110.0080.04317.78
5.6.100.0050.04417.85
5.6.90.0050.03017.70
5.6.80.0090.02517.42
5.6.70.0050.04517.34
5.6.60.0070.02217.32
5.6.50.0030.04317.25
5.6.40.0050.04317.40
5.6.30.0080.04117.24
5.6.20.0100.03817.30
5.6.10.0050.04617.20
5.6.00.0050.02717.23
5.5.380.0030.04317.38
5.5.370.0070.02217.46
5.5.360.0110.04317.38
5.5.350.0080.03317.32
5.5.340.0030.05117.56
5.5.330.0070.04517.57
5.5.320.0100.04217.54
5.5.310.0100.03917.73
5.5.300.0080.04017.58
5.5.290.0050.03017.52
5.5.280.0070.04717.54
5.5.270.0100.04017.61
5.5.260.0060.04717.63
5.5.250.0070.04317.57
5.5.240.0080.04517.31
5.5.230.0070.03417.20
5.5.220.0050.02817.02
5.5.210.0070.04117.09
5.5.200.0070.04417.15
5.5.190.0050.02717.19
5.5.180.0100.04017.34
5.5.170.0060.00614.22
5.5.160.0070.02717.15
5.5.150.0070.02917.24
5.5.140.0040.04817.24
5.5.130.0100.03817.28
5.5.120.0080.03417.27
5.5.110.0060.02217.16
5.5.100.0070.04217.28
5.5.90.0080.04017.18
5.5.80.0070.03717.27
5.5.70.0050.02817.15
5.5.60.0050.02817.05
5.5.50.0080.02317.13
5.5.40.0050.02416.98
5.5.30.0040.02717.19
5.5.20.0050.02317.15
5.5.10.0050.02817.21
5.5.00.0050.02317.23
5.4.450.0070.04215.70
5.4.440.0060.04315.52
5.4.430.0100.04115.51
5.4.420.0050.04015.64
5.4.410.0030.04615.63
5.4.400.0100.03815.52
5.4.390.0050.04415.49
5.4.380.0040.03815.55
5.4.370.0070.02015.53
5.4.360.0060.04315.50
5.4.350.0060.04115.51
5.4.340.0070.03815.45
5.4.330.0000.01111.84
5.4.320.0060.02715.53
5.4.310.0030.03715.47
5.4.300.0030.04215.48
5.4.290.0040.04415.50
5.4.280.0080.03815.44
5.4.270.0030.04215.51
5.4.260.0050.03715.36
5.4.250.0030.04415.46
5.4.240.0030.02315.48
5.4.230.0090.02315.50
5.4.220.0020.02315.34
5.4.210.0020.02215.48
5.4.200.0030.02215.36
5.4.190.0060.02215.48
5.4.180.0030.02315.36
5.4.170.0050.02415.35
5.4.160.0030.02515.50
5.4.150.0050.02115.36
5.4.140.0030.02114.12
5.4.130.0080.01914.15
5.4.120.0060.02314.04
5.4.110.0000.02914.16
5.4.100.0080.02014.13
5.4.90.0110.02814.13
5.4.80.0080.03314.18
5.4.70.0050.02514.17
5.4.60.0080.03514.04
5.4.50.0090.01514.07
5.4.40.0080.03014.17
5.4.30.0010.02414.09
5.4.20.0030.02214.07
5.4.10.0000.02614.14
5.4.00.0070.03013.87
5.3.290.0060.04013.28
5.3.280.0000.03113.21
5.3.270.0050.02313.25
5.3.260.0050.02313.19
5.3.250.0060.01913.21
5.3.240.0030.02313.28
5.3.230.0050.04013.23
5.3.220.0090.02413.26
5.3.210.0080.01913.23
5.3.200.0070.02013.27
5.3.190.0020.03313.24
5.3.180.0100.02313.22
5.3.170.0030.03113.24
5.3.160.0070.01713.17
5.3.150.0020.02713.17
5.3.140.0020.02413.18
5.3.130.0050.02113.22
5.3.120.0070.02013.23
5.3.110.0060.02013.27
5.3.100.0060.01912.92
5.3.90.0040.02312.93
5.3.80.0030.02012.94
5.3.70.0020.02412.93
5.3.60.0080.02112.99
5.3.50.0050.02012.94
5.3.40.0020.03712.92
5.3.30.0070.02112.90
5.3.20.0060.02212.76
5.3.10.0060.02012.80
5.3.00.0020.02212.73
5.2.170.0000.03311.16
5.2.160.0000.05711.16
5.2.150.0100.03011.04
5.2.140.0030.03011.12
5.2.130.0000.03011.09
5.2.120.0100.02711.02
5.2.110.0000.03311.10
5.2.100.0000.04310.98
5.2.90.0030.02711.10
5.2.80.0000.03310.98
5.2.70.0000.04011.13
5.2.60.0000.03010.93
5.2.50.0030.02711.13
5.2.40.0000.05311.08
5.2.30.0000.03010.98
5.2.20.0000.03311.09
5.2.10.0070.02310.77
5.2.00.0030.02710.72
5.1.60.0030.0239.83
5.1.50.0000.02710.05
5.1.40.0030.0239.81
5.1.30.0000.02710.26
5.1.20.0030.02010.34
5.1.10.0030.04310.11
5.1.00.0000.04310.11
5.0.50.0000.0209.15
5.0.40.0000.0209.15
5.0.30.0000.0679.15
5.0.20.0070.0379.15
5.0.10.0030.0479.15
5.0.00.0030.0639.15
4.4.90.0000.0309.15
4.4.80.0000.0139.15
4.4.70.0030.0139.15
4.4.60.0000.0179.15
4.4.50.0000.0139.15
4.4.40.0000.0239.15
4.4.30.0000.0179.15
4.4.20.0030.0139.15
4.4.10.0000.0179.15
4.4.00.0000.0339.15
4.3.110.0030.0339.15
4.3.100.0070.0309.15
4.3.90.0070.0209.15
4.3.80.0000.0539.15
4.3.70.0000.0379.15
4.3.60.0030.0379.15
4.3.50.0100.0309.15
4.3.40.0000.0479.15
4.3.30.0030.0309.15
4.3.20.0000.0409.15
4.3.10.0000.0379.15
4.3.00.0000.0379.15

preferences:
43.78 ms | 400 KiB | 5 Q