3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo preg_replace_callback('/(_?[a-z]+)/', function($u) { //var_dump($u); return str_replace('', '_', strtoupper($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)
8.3.60.0070.00718.43
8.3.50.0140.00921.14
8.3.40.0040.01118.91
8.3.30.0110.00420.29
8.3.20.0040.00420.21
8.3.10.0080.00020.91
8.3.00.0080.00022.52
8.2.180.0070.00718.66
8.2.170.0070.00722.96
8.2.160.0070.00722.44
8.2.150.0090.00024.18
8.2.140.0030.00624.66
8.2.130.0070.00026.16
8.2.120.0080.00021.07
8.2.110.0090.00019.27
8.2.100.0110.00017.91
8.2.90.0060.00319.05
8.2.80.0050.00318.05
8.2.70.0040.00717.75
8.2.60.0050.00317.77
8.2.50.0080.00018.07
8.2.40.0110.00018.28
8.2.30.0050.00219.34
8.2.20.0000.00717.73
8.2.10.0040.00417.88
8.2.00.0000.00817.90
8.1.280.0060.01325.92
8.1.270.0080.00023.99
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0150.00322.59
8.1.230.0040.00820.95
8.1.220.0030.00518.77
8.1.210.0040.00419.05
8.1.200.0040.00417.48
8.1.190.0080.00017.30
8.1.180.0060.00618.10
8.1.170.0080.00018.78
8.1.160.0000.00818.76
8.1.150.0050.00318.71
8.1.140.0000.00717.54
8.1.130.0000.00717.84
8.1.120.0030.00517.58
8.1.110.0000.00717.43
8.1.100.0040.00417.45
8.1.90.0070.00017.56
8.1.80.0040.00417.45
8.1.70.0000.00717.50
8.1.60.0060.00317.59
8.1.50.0050.00317.49
8.1.40.0000.00917.63
8.1.30.0040.00417.61
8.1.20.0050.00317.61
8.1.10.0030.00617.60
8.1.00.0000.00717.58
8.0.300.0030.00619.89
8.0.290.0030.00617.05
8.0.280.0030.00318.45
8.0.270.0050.00217.22
8.0.260.0080.00016.91
8.0.250.0030.00317.07
8.0.240.0030.00516.97
8.0.230.0000.00816.86
8.0.220.0070.00016.83
8.0.210.0070.00017.01
8.0.200.0000.00617.04
8.0.190.0030.00517.07
8.0.180.0050.00317.00
8.0.170.0000.00917.03
8.0.160.0000.00816.95
8.0.150.0000.00716.96
8.0.140.0060.00316.93
8.0.130.0030.00313.45
8.0.120.0000.00816.98
8.0.110.0080.00016.91
8.0.100.0040.00416.97
8.0.90.0040.00416.90
8.0.80.0000.01416.90
8.0.70.0040.00416.85
8.0.60.0000.00716.99
8.0.50.0000.00816.85
8.0.30.0120.00717.22
8.0.20.0110.00717.40
8.0.10.0040.00417.04
8.0.00.0100.01016.95
7.4.330.0050.00016.73
7.4.320.0030.00316.75
7.4.300.0040.00316.74
7.4.290.0000.00716.77
7.4.280.0050.00316.77
7.4.270.0000.00716.67
7.4.260.0000.00613.49
7.4.250.0070.00016.63
7.4.240.0040.00416.69
7.4.230.0040.00416.50
7.4.220.0100.01016.86
7.4.210.0050.01116.69
7.4.200.0040.00416.55
7.4.190.0070.00016.57
7.4.160.0100.00716.61
7.4.150.0150.00917.40
7.4.140.0130.01317.86
7.4.130.0100.00716.63
7.4.120.0130.00516.74
7.4.110.0100.00716.73
7.4.100.0100.00616.63
7.4.90.0120.01216.75
7.4.80.0110.01119.39
7.4.70.0180.00016.87
7.4.60.0100.00916.50
7.4.50.0030.00516.61
7.4.40.0090.00622.77
7.4.30.0120.00916.55
7.4.00.0120.00314.93
7.3.330.0020.00213.32
7.3.320.0000.00713.46
7.3.310.0030.00316.31
7.3.300.0080.00016.33
7.3.290.0090.01016.39
7.3.280.0110.00416.38
7.3.270.0140.00917.40
7.3.260.0110.01518.24
7.3.250.0120.00916.53
7.3.240.0100.00616.47
7.3.230.0090.01316.89
7.3.210.0100.00716.79
7.3.200.0160.00619.39
7.3.190.0120.01316.46
7.3.180.0060.00916.86
7.3.170.0150.00716.68
7.3.160.0030.01316.54
7.3.120.0080.00814.91
7.2.330.0150.00416.71
7.2.320.0000.02416.66
7.2.310.0000.01816.99
7.2.300.0000.01716.89
7.2.290.0110.01116.91
7.2.60.0030.01317.14
7.2.00.0070.00719.79
7.1.200.0070.00715.89
7.1.100.0030.01018.55
7.1.70.0000.00717.28
7.1.60.0110.01419.17
7.1.50.0090.01317.07
7.1.00.0100.05722.47
7.0.200.0000.01016.87
7.0.140.0030.07322.12
7.0.120.0070.03021.95
7.0.110.0030.03322.06
7.0.100.0000.04322.07
7.0.90.0070.07022.11
7.0.80.0030.07722.13
7.0.70.0070.07322.14
7.0.60.0100.06022.05
7.0.50.0100.06722.13
7.0.40.0000.04320.05
7.0.30.0030.06319.98
7.0.20.0000.04320.15
7.0.10.0070.07020.00
7.0.00.0130.05020.02
5.6.280.0000.07720.81
5.6.270.0070.02720.80
5.6.260.0000.03320.84
5.6.250.0100.07021.03
5.6.240.0030.07021.07
5.6.230.0000.07321.04
5.6.220.0000.05720.68
5.6.210.0070.03320.85
5.6.200.0070.09720.88
5.6.190.0030.08020.78
5.6.180.0030.06320.88
5.6.170.0070.03720.95
5.6.160.0070.07320.87
5.6.150.0000.07720.75
5.6.140.0070.03321.02
5.6.130.0070.04720.80
5.6.120.0000.08020.96
5.6.110.0070.08321.02
5.6.100.0030.08720.96
5.6.90.0070.04020.75
5.6.80.0100.07720.13
5.6.70.0000.03720.36
5.6.60.0030.05020.33
5.6.50.0000.04320.12
5.6.40.0130.05720.36
5.6.30.0030.06320.14
5.6.20.0100.07720.05
5.6.10.0070.04020.14
5.6.00.0070.08020.29
5.5.380.0030.05317.52
5.5.370.0000.04017.55
5.5.360.0000.04317.71
5.5.350.0000.05717.55
5.5.340.0000.05317.91
5.5.330.0030.08317.91
5.5.320.0000.06317.96
5.5.310.0000.08718.10
5.5.300.0000.04018.10
5.5.290.0000.04018.07
5.5.280.0030.03718.10
5.5.270.0070.08018.04
5.5.260.0100.08017.96
5.5.250.0030.03718.04
5.5.240.0070.07017.51
5.5.230.0070.03017.48
5.5.220.0000.07717.30
5.5.210.0000.03717.43
5.5.200.0070.07017.43
5.5.190.0000.08017.58
5.5.180.0030.07317.61
5.5.160.0030.07017.45
5.5.150.0030.07017.45
5.5.140.0070.06317.26
5.5.130.0070.06317.26
5.5.120.0000.07017.28
5.5.110.0000.08717.57
5.5.100.0070.06017.18
5.5.90.0070.07317.16
5.5.80.0030.06317.18
5.5.70.0000.07717.31
5.5.60.0030.08017.12
5.5.50.0000.07017.29
5.5.40.0030.03717.46
5.5.30.0070.07317.31
5.5.20.0070.04717.16
5.5.10.0070.07317.31
5.5.00.0030.07317.36
5.4.450.0030.05019.26
5.4.440.0070.06019.28
5.4.430.0100.05319.45
5.4.420.0000.04019.30
5.4.410.0070.06019.34
5.4.400.0100.05319.14
5.4.390.0000.03718.93
5.4.380.0030.03719.04
5.4.370.0030.05319.04
5.4.360.0070.07019.13
5.4.350.0030.04718.95
5.4.340.0070.07318.98
5.4.320.0100.05319.13
5.4.310.0000.07318.96
5.4.300.0030.06719.09
5.4.290.0000.05019.29
5.4.280.0030.08018.98
5.4.270.0000.07719.04
5.4.260.0070.06319.17
5.4.250.0030.06319.18
5.4.240.0030.06718.93
5.4.230.0030.04718.93
5.4.220.0030.03318.96
5.4.210.0000.06718.95
5.4.200.0000.06019.28
5.4.190.0030.06018.89
5.4.180.0030.06319.13
5.4.170.0070.06018.91
5.4.160.0000.06018.93
5.4.150.0000.07719.16
5.4.140.0070.07316.48
5.4.130.0030.04016.45
5.4.120.0000.05716.32
5.4.110.0000.07016.45
5.4.100.0000.04316.61
5.4.90.0070.06316.59
5.4.80.0000.05016.40
5.4.70.0000.06316.35
5.4.60.0070.06016.58
5.4.50.0030.05016.46
5.4.40.0070.04716.23
5.4.30.0000.04016.47
5.4.20.0030.07016.49
5.4.10.0000.07016.38
5.4.00.0000.05315.75
5.3.290.0070.07014.80
5.3.280.0000.06014.63
5.3.270.0000.07014.68
5.3.260.0000.08014.59
5.3.250.0070.06714.83
5.3.240.0000.07714.68
5.3.230.0000.05714.68
5.3.220.0070.06714.51
5.3.210.0000.03714.70
5.3.200.0000.05314.54
5.3.190.0000.03714.79
5.3.180.0000.03714.54
5.3.170.0030.05714.52
5.3.160.0000.05714.60
5.3.150.0000.03714.57
5.3.140.0030.07314.57
5.3.130.0030.04314.68
5.3.120.0000.07014.77
5.3.110.0000.07314.78
5.3.100.0030.07314.04
5.3.90.0070.07014.03
5.3.80.0000.07014.01
5.3.70.0000.04013.87
5.3.60.0000.07313.86
5.3.50.0030.03714.00
5.3.40.0070.07014.00
5.3.30.0000.06313.90
5.3.20.0030.04713.64
5.3.10.0030.07313.79
5.3.00.0100.05013.77
5.2.170.0070.04711.05
5.2.160.0000.06311.08
5.2.150.0030.06011.20
5.2.140.0000.07011.08
5.2.130.0030.05011.25
5.2.120.0030.04011.04
5.2.110.0000.02711.03
5.2.100.0030.02711.04
5.2.90.0070.03011.06
5.2.80.0000.04011.03
5.2.70.0030.06010.88
5.2.60.0000.04010.83
5.2.50.0100.03310.80
5.2.40.0000.05310.94
5.2.30.0030.04310.75
5.2.20.0070.06010.88
5.2.10.0000.04310.81
5.2.00.0000.03710.64
5.1.60.0000.02710.14
5.1.50.0000.02310.14
5.1.40.0070.04010.14
5.1.30.0070.03310.23
5.1.20.0030.03010.49
5.1.10.0000.05310.14
5.1.00.0070.04310.23
5.0.50.0000.04310.14
5.0.40.0000.04710.14
5.0.30.0030.02710.14
5.0.20.0000.03010.14
5.0.10.0000.03310.14
5.0.00.0030.05710.14
4.4.90.0000.03710.14
4.4.80.0030.03010.14
4.4.70.0000.02710.14
4.4.60.0030.03010.14
4.4.50.0000.03710.14
4.4.40.0000.02710.14
4.4.30.0000.02010.14
4.4.20.0030.03010.14
4.4.10.0000.03710.14
4.4.00.0000.02310.14
4.3.110.0000.02710.14
4.3.100.0000.01310.14
4.3.90.0030.02010.14
4.3.80.0000.05010.14
4.3.70.0000.03310.14
4.3.60.0000.03310.14
4.3.50.0000.03710.14
4.3.40.0000.02310.14
4.3.30.0070.02310.14
4.3.20.0000.02310.14
4.3.10.0000.01310.14
4.3.00.0000.02710.14

preferences:
37.51 ms | 401 KiB | 5 Q