3v4l.org

run code in 300+ PHP versions simultaneously
<?php function camelize($string) { return preg_replace_callback('/(_|\.|^)+(.)/', function ($match) { return ('.' === $match[1] ? '_' : '').strtoupper($match[2]); }, $string); } var_dump(camelize('_code'));

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)
8.3.70.0100.00618.56
8.3.60.0110.00418.56
8.3.50.0090.00922.12
8.3.40.0070.00718.79
8.3.30.0080.00619.06
8.3.20.0040.00420.16
8.3.10.0040.00423.70
8.3.00.0070.00317.84
8.2.180.0090.00918.28
8.2.170.0040.01122.96
8.2.160.0030.01020.38
8.2.150.0090.00024.18
8.2.140.0030.00524.66
8.2.130.0000.00726.16
8.2.120.0000.00722.20
8.2.110.0040.00719.37
8.2.100.0060.00618.03
8.2.90.0000.00819.27
8.2.80.0040.00417.97
8.2.70.0000.00817.63
8.2.60.0000.01017.91
8.2.50.0040.00418.07
8.2.40.0040.00418.34
8.2.30.0040.00418.06
8.2.20.0040.00417.82
8.2.10.0040.00418.14
8.2.00.0000.00917.81
8.1.280.0090.00625.92
8.1.270.0030.00523.97
8.1.260.0020.00526.35
8.1.250.0000.00728.09
8.1.240.0060.00321.17
8.1.230.0070.00419.07
8.1.220.0040.00417.88
8.1.210.0080.00018.77
8.1.200.0040.00717.36
8.1.190.0030.00517.48
8.1.180.0000.00818.10
8.1.170.0060.00318.76
8.1.160.0070.00021.94
8.1.150.0000.00718.73
8.1.140.0000.00717.54
8.1.130.0030.00317.79
8.1.120.0070.00017.54
8.1.110.0040.00417.61
8.1.100.0070.00017.42
8.1.90.0030.00617.53
8.1.80.0070.00017.54
8.1.70.0040.00417.55
8.1.60.0040.00417.71
8.1.50.0030.00517.66
8.1.40.0040.00417.46
8.1.30.0060.00317.65
8.1.20.0030.00617.65
8.1.10.0000.00717.57
8.1.00.0070.00017.58
8.0.300.0070.00018.77
8.0.290.0040.00416.75
8.0.280.0070.00018.34
8.0.270.0000.00717.09
8.0.260.0030.00317.09
8.0.250.0000.00817.09
8.0.240.0000.00616.96
8.0.230.0000.00717.03
8.0.220.0050.00217.01
8.0.210.0070.00016.95
8.0.200.0050.00317.01
8.0.190.0060.00317.01
8.0.180.0000.00716.88
8.0.170.0030.00516.91
8.0.160.0030.00516.84
8.0.150.0040.00416.94
8.0.140.0000.00716.90
8.0.130.0060.00013.40
8.0.120.0040.00416.92
8.0.110.0000.00716.95
8.0.100.0000.00716.93
8.0.90.0000.00716.99
8.0.80.0100.00616.95
8.0.70.0000.00816.94
8.0.60.0000.00716.95
8.0.50.0040.00416.84
8.0.30.0100.00917.05
8.0.20.0110.01217.49
8.0.10.0080.00017.15
8.0.00.0060.01416.99
7.4.330.0050.00015.05
7.4.320.0030.00316.66
7.4.300.0030.00316.61
7.4.290.0050.00316.65
7.4.280.0000.00916.74
7.4.270.0030.00316.78
7.4.260.0000.00716.77
7.4.250.0040.00416.73
7.4.240.0020.00516.80
7.4.230.0030.00316.81
7.4.220.0070.01816.76
7.4.210.0000.02116.84
7.4.200.0030.00316.78
7.4.160.0130.00316.46
7.4.150.0120.01217.40
7.4.140.0100.01217.86
7.4.130.0070.00916.67
7.4.120.0120.00416.76
7.4.110.0090.01116.81
7.4.100.0140.00316.63
7.4.90.0030.01316.50
7.4.80.0130.00419.39
7.4.70.0130.00316.83
7.4.60.0100.00616.64
7.4.50.0040.00416.77
7.4.40.0120.00616.56
7.4.30.0070.01016.69
7.4.00.0060.01215.12
7.3.330.0000.00513.32
7.3.320.0050.00213.46
7.3.310.0050.00216.51
7.3.300.0070.00016.41
7.3.290.0100.01016.41
7.3.280.0060.01116.39
7.3.270.0070.01717.40
7.3.260.0110.00816.45
7.3.250.0050.01216.70
7.3.240.0140.00616.88
7.3.230.0170.00016.54
7.3.210.0140.00416.44
7.3.200.0100.00719.39
7.3.190.0070.01516.66
7.3.180.0100.00716.55
7.3.170.0150.00616.50
7.3.160.0060.01616.65
7.3.10.0080.00616.62
7.3.00.0040.01116.99
7.2.330.0170.00316.85
7.2.320.0030.01216.83
7.2.310.0030.01316.83
7.2.300.0060.01516.82
7.2.290.0070.01616.69
7.2.130.0030.00617.18
7.2.120.0050.00916.93
7.2.110.0090.01016.69
7.2.100.0150.00716.92
7.2.90.0140.00916.95
7.2.80.0070.01316.93
7.2.70.0120.00916.79
7.2.60.0150.00617.06
7.2.50.0110.00816.96
7.2.40.0170.00417.05
7.2.30.0140.00817.00
7.2.20.0150.00617.07
7.2.10.0080.01016.95
7.2.00.0090.01117.80
7.1.250.0070.00315.62
7.1.230.0060.00916.16
7.1.220.0080.00815.87
7.1.210.0300.00015.91
7.1.200.0160.00915.74
7.1.190.0180.00316.07
7.1.180.0240.00416.04
7.1.170.0000.01415.93
7.1.160.0200.00016.03
7.1.150.0120.01115.71
7.1.140.0220.00416.02
7.1.130.0070.00715.67
7.1.120.0170.00915.76
7.1.110.0080.00815.87
7.1.100.0110.00517.20
7.1.90.0120.00515.82
7.1.80.0210.00515.82
7.1.70.0110.00216.80
7.1.60.0240.00917.72
7.1.50.0100.00716.66
7.1.40.0210.00316.23
7.1.30.0220.00616.04
7.1.20.0190.00316.30
7.1.10.0360.00816.00
7.1.00.0120.04019.18
7.0.310.0150.00315.43
7.0.300.0200.00715.39
7.0.290.0160.00615.47
7.0.280.0140.00715.51
7.0.270.0230.00015.19
7.0.260.0220.00015.57
7.0.250.0080.00415.80
7.0.240.0160.00415.67
7.0.230.0160.00915.53
7.0.220.0210.00315.53
7.0.210.0350.00615.35
7.0.200.0170.00616.24
7.0.190.0430.00015.38
7.0.180.0150.00815.61
7.0.170.0180.00715.31
7.0.160.0140.01115.72
7.0.150.0190.00415.52
7.0.140.0120.03718.76
7.0.130.0150.00415.52
7.0.120.0060.00915.46
7.0.110.0130.01015.68
7.0.100.0330.00315.54
7.0.90.0170.01015.59
7.0.80.0120.00815.61
7.0.70.0080.00815.37
7.0.60.0120.04817.84
7.0.50.0140.02016.69
7.0.40.0120.04416.84
7.0.30.0320.03816.89
7.0.20.0180.04316.94
7.0.10.0050.02716.84
7.0.00.0060.03316.94
5.6.380.0000.01714.69
5.6.370.0130.00314.28
5.6.360.0120.00514.46
5.6.350.0120.00314.16
5.6.340.0090.00614.50
5.6.330.0100.00514.83
5.6.320.0090.00614.06
5.6.310.0040.00714.65
5.6.300.0110.00414.33
5.6.290.0040.00914.25
5.6.280.0100.03617.89
5.6.270.0110.00714.47
5.6.260.0080.00814.25
5.6.250.0120.00414.82
5.6.240.0040.01114.31
5.6.230.0090.00414.77
5.6.220.0120.00614.32
5.6.210.0050.04317.36
5.6.200.0100.04316.27
5.6.190.0100.02317.43
5.6.180.0080.03217.43
5.6.170.0250.03317.40
5.6.160.0080.02517.23
5.6.150.0090.02816.20
5.6.140.0070.02716.34
5.6.130.0080.03116.34
5.6.120.0110.02917.71
5.6.110.0070.04217.68
5.6.100.0090.03017.76
5.6.90.0060.02617.74
5.6.80.0110.02017.42
5.6.70.0100.00314.53
5.6.60.0090.00914.32
5.6.50.0160.00313.95
5.6.40.0030.01014.27
5.6.30.0090.00614.38
5.6.20.0130.00314.28
5.6.10.0080.00514.48
5.6.00.0090.00614.44
5.5.380.0060.00311.06
5.5.370.0000.01111.34
5.5.360.0070.00411.13
5.5.350.0140.03915.91
5.5.340.0100.04214.72
5.5.330.0130.03315.82
5.5.320.0260.03615.92
5.5.310.0190.03015.74
5.5.300.0080.02814.47
5.5.290.0070.02014.79
5.5.280.0050.04515.92
5.5.270.0100.02915.98
5.5.260.0120.03816.21
5.5.250.0130.01815.89
5.5.240.0050.05015.83
5.5.230.0000.00911.29
5.5.220.0070.00411.27
5.5.210.0080.00411.36
5.5.200.0070.00411.34
5.5.190.0100.00511.22
5.5.180.0080.00611.28
5.5.170.0050.01014.29
5.5.160.0070.00311.13
5.5.150.0120.00011.34
5.5.140.0080.00411.09
5.5.130.0000.01211.28
5.5.120.0060.00311.11
5.5.110.0020.00611.34
5.5.100.0050.00511.45
5.5.90.0090.00211.32
5.5.80.0090.00311.39
5.5.70.0080.00011.22
5.5.60.0020.00611.35
5.5.50.0000.00911.25
5.5.40.0090.00011.03
5.5.30.0090.00011.38
5.5.20.0050.00611.09
5.5.10.0050.00911.02
5.5.00.0090.00411.10
5.4.450.0160.02815.45
5.4.440.0170.02515.24
5.4.430.0150.02915.29
5.4.420.0370.00015.37
5.4.410.0360.00215.23
5.4.400.0320.00315.01
5.4.390.0340.00114.96
5.4.380.0380.00015.18
5.4.370.0320.00515.14
5.4.360.0340.00115.12
5.4.350.0350.00215.07
5.4.340.0060.01911.58
5.4.330.0110.00310.84
5.4.320.0080.02611.80
5.4.310.0080.02811.81
5.4.300.0080.02511.74
5.4.290.0040.02611.83
5.4.280.0070.02011.77
5.4.270.0080.02011.85
5.4.260.0060.03411.59
5.4.250.0060.02811.67
5.4.240.0070.01911.60
5.4.230.0060.02611.83
5.4.220.0080.02611.67
5.4.210.0070.01811.59
5.4.200.0060.02211.68
5.4.190.0070.01911.76
5.4.180.0070.02211.65
5.4.170.0070.02211.76
5.4.160.0040.02411.79
5.4.150.0090.01811.64
5.4.140.0050.02211.46
5.4.130.0060.02011.56
5.4.120.0070.01911.51
5.4.110.0060.02711.56
5.4.100.0060.02511.64
5.4.90.0070.02211.54
5.4.80.0050.02511.66
5.4.70.0070.02311.62
5.4.60.0030.02111.55
5.4.50.0070.01911.42
5.4.40.0080.01811.52
5.4.30.0060.02011.62
5.4.20.0070.01911.62
5.4.10.0090.02411.62
5.4.00.0060.02611.17
5.3.290.0070.02411.75
5.3.280.0060.02311.63
5.3.270.0080.02111.73
5.3.260.0040.02511.64
5.3.250.0070.02211.65
5.3.240.0060.02511.46
5.3.230.0110.02311.62
5.3.220.0090.02611.64
5.3.210.0070.02311.63
5.3.200.0120.02211.47
5.3.190.0090.02511.50
5.3.180.0070.02611.68
5.3.170.0090.02011.72
5.3.160.0050.02111.71
5.3.150.0100.02311.64
5.3.140.0060.02811.71
5.3.130.0100.02511.63
5.3.120.0040.02511.64
5.3.110.0080.02111.61
5.3.100.0050.02411.25
5.3.90.0060.02511.27
5.3.80.0050.03311.39
5.3.70.0040.02211.30
5.3.60.0020.02411.39
5.3.50.0070.02111.30
5.3.40.0080.02011.19
5.3.30.0090.01811.27
5.3.20.0070.02111.21
5.3.10.0050.02411.11
5.3.00.0040.02211.15
5.2.170.0040.0189.26
5.2.160.0060.0149.20
5.2.150.0070.0159.14
5.2.140.0070.0149.26
5.2.130.0050.0179.30
5.2.120.0070.0159.22
5.2.110.0050.0219.23
5.2.100.0070.0159.22
5.2.90.0050.0199.10
5.2.80.0060.0209.19
5.2.70.0080.0179.08
5.2.60.0040.0199.06
5.2.50.0040.0179.13
5.2.40.0050.0179.16
5.2.30.0060.0159.15
5.2.20.0020.0189.01
5.2.10.0040.0208.98
5.2.00.0060.0178.76
5.1.60.0060.0178.40
5.1.50.0050.0138.40
5.1.40.0060.0168.39
5.1.30.0080.0178.57
5.1.20.0070.0158.57
5.1.10.0060.0158.43
5.1.00.0030.0278.44
5.0.50.0010.0167.68
5.0.40.0030.0137.60
5.0.30.0020.0187.51
5.0.20.0030.0137.50
5.0.10.0040.0117.48
5.0.00.0050.0157.48
4.4.90.0030.0116.74
4.4.80.0030.0146.73
4.4.70.0050.0086.73
4.4.60.0010.0126.73
4.4.50.0030.0116.74
4.4.40.0040.0146.71
4.4.30.0040.0086.74
4.4.20.0050.0086.78
4.4.10.0020.0106.78
4.4.00.0000.0176.73
4.3.110.0040.0086.69
4.3.100.0030.0116.69
4.3.90.0030.0096.67
4.3.80.0020.0156.65
4.3.70.0040.0086.67
4.3.60.0020.0096.67
4.3.50.0060.0096.67
4.3.40.0050.0126.62
4.3.30.0050.0076.01
4.3.20.0010.0105.99
4.3.10.0020.0115.98
4.3.00.0030.0127.92

preferences:
39.15 ms | 401 KiB | 5 Q