3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo preg_replace_callback('/(_?[a-z]+)/', function($u) { //var_dump($u); return str_replace('_', '', ucwords($u[0])); } , 'rob_tr');

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)
8.3.60.0160.00318.43
8.3.50.0100.00921.27
8.3.40.0140.00018.73
8.3.30.0130.00320.30
8.3.20.0000.00820.34
8.3.10.0050.00320.89
8.3.00.0000.00822.45
8.2.180.0100.00716.63
8.2.170.0070.00722.96
8.2.160.0140.00422.38
8.2.150.0030.00524.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0050.00321.05
8.2.110.0060.00322.20
8.2.100.0110.00018.03
8.2.90.0030.00619.05
8.2.80.0000.00817.97
8.2.70.0060.00317.63
8.2.60.0040.00417.93
8.2.50.0000.00818.07
8.2.40.0030.00618.21
8.2.30.0000.00719.39
8.2.20.0060.00317.90
8.2.10.0080.00017.90
8.2.00.0080.00017.77
8.1.280.0040.01125.92
8.1.270.0040.00423.99
8.1.260.0080.00026.35
8.1.250.0000.00728.09
8.1.240.0060.00319.56
8.1.230.0040.00817.58
8.1.220.0040.00417.74
8.1.210.0030.00518.77
8.1.200.0000.00917.47
8.1.190.0030.00617.35
8.1.180.0030.00618.10
8.1.170.0060.00318.81
8.1.160.0040.00418.86
8.1.150.0040.00418.74
8.1.140.0040.00417.48
8.1.130.0030.00317.70
8.1.120.0040.00417.57
8.1.110.0030.00617.51
8.1.100.0070.00017.54
8.1.90.0020.00517.56
8.1.80.0000.00717.44
8.1.70.0000.00717.52
8.1.60.0000.00917.74
8.1.50.0080.00017.61
8.1.40.0000.00817.61
8.1.30.0000.00817.55
8.1.20.0000.00817.64
8.1.10.0030.00517.60
8.1.00.0000.00817.53
8.0.300.0000.00818.77
8.0.290.0030.00616.75
8.0.280.0080.00018.41
8.0.270.0040.00417.10
8.0.260.0030.00316.84
8.0.250.0030.00316.98
8.0.240.0000.00917.03
8.0.230.0000.00816.94
8.0.220.0070.00016.93
8.0.210.0000.00716.96
8.0.200.0040.00417.00
8.0.190.0030.00516.94
8.0.180.0030.00516.85
8.0.170.0000.00716.99
8.0.160.0070.00017.05
8.0.150.0000.00716.97
8.0.140.0030.00716.98
8.0.130.0050.00013.50
8.0.120.0030.00516.94
8.0.110.0080.00016.96
8.0.100.0040.00416.86
8.0.90.0070.00016.94
8.0.80.0090.00617.00
8.0.70.0040.00416.93
8.0.60.0040.00416.87
8.0.50.0040.00416.96
8.0.30.0090.00917.20
8.0.20.0180.00417.44
8.0.10.0000.00717.12
8.0.00.0090.01016.93
7.4.330.0000.00516.81
7.4.320.0000.00616.76
7.4.300.0030.00316.56
7.4.290.0000.00716.76
7.4.280.0070.00016.78
7.4.270.0000.00716.76
7.4.260.0040.00413.44
7.4.250.0040.00416.71
7.4.240.0000.00716.79
7.4.230.0030.00316.79
7.4.220.0100.01016.79
7.4.210.0080.00916.70
7.4.200.0030.00316.78
7.4.190.0000.00816.81
7.4.160.0130.00316.70
7.4.150.0130.00317.40
7.4.140.0100.01017.86
7.4.130.0110.00916.59
7.4.120.0100.00616.60
7.4.110.0070.01016.59
7.4.100.0080.00816.59
7.4.90.0070.01116.60
7.4.80.0060.01219.39
7.4.70.0060.01216.63
7.4.60.0140.00316.66
7.4.50.0040.00416.71
7.4.40.0060.00922.77
7.4.30.0100.01216.82
7.4.00.0090.00915.26
7.3.330.0050.00013.45
7.3.320.0000.00613.22
7.3.310.0030.00316.31
7.3.300.0070.00016.33
7.3.290.0070.01016.38
7.3.280.0120.00416.36
7.3.270.0100.00717.40
7.3.260.0100.01018.24
7.3.250.0090.01116.66
7.3.240.0120.00616.88
7.3.230.0170.00016.41
7.3.210.0090.00616.70
7.3.200.0110.00719.39
7.3.190.0090.01216.48
7.3.180.0090.00616.38
7.3.170.0070.01416.72
7.3.160.0000.01616.57
7.3.120.0040.01214.67
7.3.10.0040.00816.46
7.3.00.0070.00716.39
7.2.330.0140.00616.80
7.2.320.0070.01716.73
7.2.310.0090.00916.94
7.2.300.0040.01416.79
7.2.290.0080.00816.75
7.2.130.0090.00916.74
7.2.120.0080.00817.04
7.2.110.0150.00816.86
7.2.100.0140.00516.73
7.2.90.0130.01317.05
7.2.80.0150.00316.83
7.2.70.0140.01116.76
7.2.60.0080.01117.01
7.2.50.0100.00716.38
7.2.40.0100.01016.66
7.2.30.0140.01316.70
7.2.20.0110.00616.98
7.2.10.0080.01717.05
7.2.00.0140.01116.97
7.1.250.0070.00715.64
7.1.200.0160.00715.63
7.1.100.0030.01018.29
7.1.70.0030.00616.99
7.1.60.0070.01719.17
7.1.50.0040.01817.07
7.1.00.0030.05722.47
7.0.200.0050.00316.77
7.0.140.0100.06722.04
7.0.70.0100.07021.66
7.0.60.0200.06721.80
7.0.50.0100.05022.11
7.0.40.0070.04020.03
7.0.30.0070.04020.17
7.0.20.0130.07720.04
7.0.10.0100.05320.07
7.0.00.0100.08320.05
5.6.280.0030.07320.90
5.6.220.0130.06020.68
5.6.210.0030.08320.64
5.6.200.0030.06021.12
5.6.190.0100.07721.09
5.6.180.0300.05021.04
5.6.170.0200.06721.01
5.6.160.0030.09020.98
5.6.150.0100.06021.08
5.6.140.0100.06021.11
5.6.130.0070.09021.04
5.6.120.0130.05021.03
5.6.110.0100.08020.95
5.6.100.0100.08321.10
5.6.90.0070.09021.00
5.6.80.0100.03720.34
5.6.70.0070.09020.55
5.6.60.0030.07320.30
5.6.50.0100.03720.53
5.6.40.0070.03720.36
5.6.30.0030.04020.32
5.6.20.0000.04320.29
5.6.10.0070.04020.36
5.6.00.0100.03320.42
5.5.360.0070.07720.38
5.5.350.0100.07720.45
5.5.340.0030.06020.75
5.5.330.0030.07020.78
5.5.320.0070.07020.92
5.5.310.0100.04020.80
5.5.300.0100.08020.75
5.5.290.0000.08720.92
5.5.280.0000.06320.80
5.5.270.0130.07020.75
5.5.260.0070.06720.77
5.5.250.0070.08020.70
5.5.240.0000.09020.15
5.5.230.0070.04020.14
5.5.220.0070.03720.15
5.5.210.0070.03720.25
5.5.200.0030.04320.19
5.5.190.0030.04020.18
5.5.180.0030.04720.11
5.5.160.0100.03320.18
5.5.150.0070.03720.11
5.5.140.0030.03320.15
5.5.130.0030.08320.21
5.5.120.0070.08320.08
5.5.110.0030.04720.13
5.5.100.0070.06720.03
5.5.90.0100.04020.08
5.5.80.0070.03720.13
5.5.70.0000.04320.16
5.5.60.0030.04020.08
5.5.50.0070.03719.94
5.5.40.0070.03720.03
5.5.30.0070.04320.19
5.5.20.0130.06720.11
5.5.10.0100.03720.07
5.5.00.0070.03720.11
5.4.450.0100.07319.49
5.4.440.0130.07019.18
5.4.430.0000.08319.53
5.4.420.0070.08019.44
5.4.410.0030.06019.14
5.4.400.0030.03718.92
5.4.390.0070.07319.04
5.4.380.0070.04319.13
5.4.370.0070.03719.18
5.4.360.0030.04019.12
5.4.350.0070.03719.18
5.4.340.0100.03319.16
5.4.320.0030.03719.13
5.4.310.0000.04319.23
5.4.300.0100.04319.09
5.4.290.0100.07719.04
5.4.280.0030.05719.18
5.4.270.0030.07719.22
5.4.260.0070.07018.90
5.4.250.0030.04719.02
5.4.240.0100.03718.94
5.4.230.0100.03719.08
5.4.220.0030.03719.02
5.4.210.0130.02719.02
5.4.200.0000.04019.12
5.4.190.0100.03319.02
5.4.180.0100.04719.19
5.4.170.0070.04019.11
5.4.160.0000.04018.93
5.4.150.0070.07018.92
5.4.140.0070.03716.34
5.4.130.0070.03716.41
5.4.120.0030.03316.19
5.4.110.0030.05016.27
5.4.100.0030.03016.34
5.4.90.0030.03316.47
5.4.80.0000.03316.37
5.4.70.0000.03716.41
5.4.60.0070.03316.31
5.4.50.0070.03016.25
5.4.40.0000.03716.30
5.4.30.0070.03016.41
5.4.20.0000.03316.33
5.4.10.0030.03316.47
5.4.00.0030.04015.84
5.3.290.0030.04014.78
5.3.280.0000.04014.73
5.3.270.0070.03314.70
5.3.260.0030.04014.53
5.3.250.0000.05314.66
5.3.240.0000.04014.57
5.3.230.0030.03714.72
5.3.220.0130.06714.54
5.3.210.0000.03314.66
5.3.200.0070.02714.54
5.3.190.0030.03714.53
5.3.180.0070.03314.53
5.3.170.0030.03714.48
5.3.160.0070.03014.55
5.3.150.0070.02714.48
5.3.140.0000.04014.50
5.3.130.0030.03714.53
5.3.120.0030.03714.51
5.3.110.0000.04014.61
5.3.100.0030.03014.07
5.3.90.0000.03013.94
5.3.80.0070.03314.08
5.3.70.0000.04013.94
5.3.60.0070.03014.11
5.3.50.0000.03713.85
5.3.40.0000.06713.95
5.3.30.0200.05713.82
5.3.20.0030.03713.71
5.3.10.0030.07313.76
5.3.00.0070.05713.54
5.2.170.0000.02712.23
5.2.160.0000.03012.23
5.2.150.0070.02012.23
5.2.140.0000.05712.23
5.2.130.0000.03712.23
5.2.120.0070.02712.23
5.2.110.0030.02312.23
5.2.100.0030.03312.23
5.2.90.0030.06312.23
5.2.80.0030.04312.23
5.2.70.0000.07312.23
5.2.60.0000.03012.23
5.2.50.0030.05712.23
5.2.40.0070.02712.23
5.2.30.0030.02712.23
5.2.20.0030.06312.23
5.2.10.0030.06012.23
5.2.00.0070.06012.23
5.1.60.0030.05312.23
5.1.50.0100.04712.23
5.1.40.0030.05312.23
5.1.30.0100.05012.23
5.1.20.0100.05012.23
5.1.10.0030.05312.23
5.1.00.0030.04012.23
5.0.50.0000.04312.23
5.0.40.0000.04012.23
5.0.30.0030.06312.23
5.0.20.0070.04012.23
5.0.10.0030.04312.23
5.0.00.0070.06312.23
4.4.90.0000.01712.23
4.4.80.0000.02012.23
4.4.70.0000.01712.23
4.4.60.0000.03712.23
4.4.50.0000.02012.23
4.4.40.0030.05012.23
4.4.30.0030.03012.23
4.4.20.0000.03712.23
4.4.10.0000.03712.23
4.4.00.0000.05312.23
4.3.110.0030.02712.23
4.3.100.0000.03312.23
4.3.90.0000.03712.23
4.3.80.0000.04712.23
4.3.70.0000.02712.23
4.3.60.0000.02312.23
4.3.50.0000.04012.23
4.3.40.0030.04712.23
4.3.30.0030.03712.23
4.3.20.0000.03712.23
4.3.10.0000.03712.23
4.3.00.0000.03012.23

preferences:
46.74 ms | 401 KiB | 5 Q