3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo preg_replace_callback('/([a-z])(_[a-z])/', function($u) { var_dump($u); return $u[1].ucwords(str_replace('_', '', $u[2])); } , 'rob_tr_yuui'); echo PHP_EOL; echo preg_replace('/([a-z])(_[a-z])/', '$1$2', 'rob_tr_yuui');

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)
8.3.60.0150.00618.43
8.3.50.0120.00921.09
8.3.40.0090.00619.09
8.3.30.0070.00720.38
8.3.20.0080.00020.16
8.3.10.0040.00421.13
8.3.00.0080.00022.43
8.2.180.0090.00916.63
8.2.170.0110.00622.96
8.2.160.0100.00322.37
8.2.150.0050.00324.18
8.2.140.0000.01124.66
8.2.130.0040.00426.16
8.2.120.0040.00421.07
8.2.110.0100.00021.24
8.2.100.0060.00617.84
8.2.90.0000.00819.40
8.2.80.0040.00417.97
8.2.70.0030.00617.88
8.2.60.0000.00817.80
8.2.50.0080.00018.07
8.2.40.0040.00418.28
8.2.30.0040.00419.36
8.2.20.0060.00317.77
8.2.10.0040.00417.79
8.2.00.0040.00417.98
8.1.280.0030.01225.92
8.1.270.0040.00423.99
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0050.00521.16
8.1.230.0040.00817.52
8.1.220.0000.00817.74
8.1.210.0000.00918.77
8.1.200.0030.00617.35
8.1.190.0040.00417.35
8.1.180.0040.00418.10
8.1.170.0050.00318.84
8.1.160.0060.00318.93
8.1.150.0050.00318.75
8.1.140.0050.00217.47
8.1.130.0030.00317.82
8.1.120.0050.00317.47
8.1.110.0030.00617.59
8.1.100.0040.00417.53
8.1.90.0000.00717.46
8.1.80.0040.00417.54
8.1.70.0000.00717.56
8.1.60.0040.00417.65
8.1.50.0000.00717.61
8.1.40.0060.00317.65
8.1.30.0060.00317.75
8.1.20.0030.00517.75
8.1.10.0030.00617.59
8.1.00.0000.00817.55
8.0.300.0000.00818.77
8.0.290.0000.00716.75
8.0.280.0030.00318.46
8.0.270.0000.00717.27
8.0.260.0000.00716.92
8.0.250.0070.00017.01
8.0.240.0040.00417.07
8.0.230.0030.00317.04
8.0.220.0060.00016.89
8.0.210.0040.00416.88
8.0.200.0030.00316.97
8.0.190.0000.00817.05
8.0.180.0000.00816.89
8.0.170.0000.00817.04
8.0.160.0070.00017.04
8.0.150.0040.00416.92
8.0.140.0040.00716.94
8.0.130.0030.00313.45
8.0.120.0040.00416.98
8.0.110.0080.00017.00
8.0.100.0040.00416.95
8.0.90.0000.00717.04
8.0.80.0070.00717.01
8.0.70.0000.00716.97
8.0.60.0000.00716.99
8.0.50.0070.00016.86
8.0.30.0100.00916.93
8.0.20.0100.00817.40
8.0.10.0000.00717.16
8.0.00.0100.01017.04
7.4.330.0000.00516.85
7.4.320.0030.00316.75
7.4.300.0060.00016.68
7.4.290.0070.00016.70
7.4.280.0030.00316.56
7.4.270.0070.00016.77
7.4.260.0030.00313.43
7.4.250.0030.00516.62
7.4.240.0040.00316.75
7.4.230.0000.00716.41
7.4.220.0100.00716.75
7.4.210.0090.00816.65
7.4.200.0040.00416.76
7.4.190.0000.00716.85
7.4.160.0090.00916.43
7.4.150.0200.00417.40
7.4.140.0110.01017.86
7.4.130.0050.01316.66
7.4.120.0120.00616.67
7.4.110.0160.00316.84
7.4.100.0100.00716.65
7.4.90.0110.01116.60
7.4.80.0150.00919.39
7.4.70.0100.01016.59
7.4.60.0140.00516.37
7.4.50.0000.00816.55
7.4.40.0110.00422.77
7.4.30.0090.00916.61
7.4.00.0120.00415.05
7.3.330.0020.00213.42
7.3.320.0060.00013.52
7.3.310.0030.00316.48
7.3.300.0080.00016.34
7.3.290.0110.00316.38
7.3.280.0110.00616.40
7.3.270.0110.00717.40
7.3.260.0090.01518.24
7.3.250.0130.00916.48
7.3.240.0060.01216.48
7.3.230.0090.01216.54
7.3.210.0110.00516.45
7.3.200.0130.00919.39
7.3.190.0150.00716.39
7.3.180.0090.00616.53
7.3.170.0150.00916.48
7.3.160.0040.01716.43
7.3.120.0070.00715.28
7.2.330.0150.00716.82
7.2.320.0110.01216.86
7.2.310.0090.01916.86
7.2.300.0080.01416.78
7.2.290.0060.01316.65
7.2.00.0080.00419.63
7.1.100.0040.00818.41
7.1.70.0050.00517.49
7.1.60.0030.02019.17
7.1.50.0140.00717.16
7.1.00.0000.05722.42
7.0.200.0040.00416.69
7.0.140.0000.07722.07
7.0.100.0230.07719.94
7.0.90.0030.08320.00
7.0.80.0100.08019.88
7.0.70.0230.06719.89
7.0.60.0130.03719.88
7.0.50.0130.07720.13
7.0.40.0100.06720.02
7.0.30.0130.08320.12
7.0.20.0200.07320.03
7.0.10.0070.08720.01
7.0.00.0130.07319.93
5.6.280.0030.07321.07
5.6.250.0030.04720.75
5.6.240.0070.05020.68
5.6.230.0070.04320.66
5.6.220.0070.08020.67
5.6.210.0030.07020.67
5.6.200.0100.05321.08
5.6.190.0070.08321.05
5.6.180.0030.09021.07
5.6.170.0100.08021.02
5.6.160.0170.06320.95
5.6.150.0130.06020.99
5.6.140.0100.08020.92
5.6.130.0170.07321.00
5.6.120.0070.08321.09
5.6.110.0130.04721.15
5.6.100.0030.09320.98
5.6.90.0000.04720.98
5.6.80.0100.08720.31
5.6.70.0100.07320.45
5.6.60.0130.08720.31
5.6.50.0030.08020.51
5.6.40.0030.08720.37
5.6.30.0100.07320.38
5.6.20.0130.07720.39
5.6.10.0170.05720.43
5.6.00.0230.06720.44
5.5.380.0070.07020.31
5.5.370.0100.04320.55
5.5.360.0130.08020.35
5.5.350.0030.06320.37
5.5.340.0130.07320.82
5.5.330.0030.04320.86
5.5.320.0130.04020.91
5.5.310.0130.07020.63
5.5.300.0230.06320.88
5.5.290.0100.08020.72
5.5.280.0130.05720.84
5.5.270.0130.06320.84
5.5.260.0100.08320.77
5.5.250.0070.07320.66
5.5.240.0070.07020.25
5.5.230.0070.08020.23
5.5.220.0030.07320.26
5.5.210.0030.04020.12
5.5.200.0130.07720.27
5.5.190.0070.06020.26
5.5.180.0030.08020.21
5.5.160.0100.04720.26
5.5.150.0070.07020.17
5.5.140.0200.06320.22
5.5.130.0070.07320.16
5.5.120.0030.07720.07
5.5.110.0030.07020.23
5.5.100.0070.07320.12
5.5.90.0030.08020.06
5.5.80.0170.07320.04
5.5.70.0070.05019.99
5.5.60.0070.07720.03
5.5.50.0100.07720.14
5.5.40.0030.04020.04
5.5.30.0100.08020.12
5.5.20.0200.05719.95
5.5.10.0030.08720.03
5.5.00.0130.06019.99
5.4.450.0070.08719.36
5.4.440.0070.08019.29
5.4.430.0070.07019.50
5.4.420.0100.07719.35
5.4.410.0100.03319.32
5.4.400.0170.06018.88
5.4.390.0100.08019.07
5.4.380.0100.07019.21
5.4.370.0100.07319.25
5.4.360.0070.04719.09
5.4.350.0100.07018.95
5.4.340.0170.04719.18
5.4.320.0070.06319.18
5.4.310.0130.06019.14
5.4.300.0100.07018.84
5.4.290.0070.08018.90
5.4.280.0130.07719.13
5.4.270.0030.05019.17
5.4.260.0070.07319.13
5.4.250.0130.07318.94
5.4.240.0030.04319.20
5.4.230.0130.06718.84
5.4.220.0030.07719.18
5.4.210.0000.08018.87
5.4.200.0100.03318.89
5.4.190.0030.04719.20
5.4.180.0000.07719.20
5.4.170.0070.07719.17
5.4.160.0100.07318.82
5.4.150.0100.06318.85
5.4.140.0000.08016.38
5.4.130.0030.07716.18
5.4.120.0070.04016.13
5.4.110.0070.07016.55
5.4.100.0030.03716.46
5.4.90.0070.06316.44
5.4.80.0030.07316.41
5.4.70.0100.05716.42
5.4.60.0000.06716.47
5.4.50.0070.06016.48
5.4.40.0030.05016.41
5.4.30.0100.07016.33
5.4.20.0170.06716.51
5.4.10.0200.06316.45
5.4.00.0030.07315.78
5.3.290.0200.06714.77
5.3.280.0100.06714.52
5.3.270.0030.08314.52
5.3.260.0070.04714.73
5.3.250.0170.07014.62
5.3.240.0070.06714.70
5.3.230.0100.07714.74
5.3.220.0070.08014.50
5.3.210.0130.06314.50
5.3.200.0070.04014.66
5.3.190.0170.06314.70
5.3.180.0070.06314.65
5.3.170.0030.04314.63
5.3.160.0170.04314.52
5.3.150.0070.06714.64
5.3.140.0070.07714.61
5.3.130.0130.03714.51
5.3.120.0070.07314.55
5.3.110.0100.06714.55
5.3.100.0070.06014.00
5.3.90.0170.06313.96
5.3.80.0100.05314.13
5.3.70.0030.07713.99
5.3.60.0070.06314.14
5.3.50.0130.07014.08
5.3.40.0130.06314.00
5.3.30.0100.05713.89
5.3.20.0000.04313.74
5.3.10.0170.05713.58
5.3.00.0030.03713.69
5.2.170.0030.06010.96
5.2.160.0070.03011.00
5.2.150.0030.03310.93
5.2.140.0070.05711.14
5.2.130.0130.02311.06
5.2.120.0170.05011.16
5.2.110.0100.05711.16
5.2.100.0070.06011.14
5.2.90.0070.03311.02
5.2.80.0100.06311.14
5.2.70.0030.06011.05
5.2.60.0100.06010.89
5.2.50.0000.05311.09
5.2.40.0070.04310.95
5.2.30.0170.05311.00
5.2.20.0130.05010.95
5.2.10.0070.02710.76
5.2.00.0070.05710.64
5.1.60.0070.02710.02
5.1.50.0130.03010.01
5.1.40.0000.0279.96
5.1.30.0070.02710.40
5.1.20.0030.05010.39
5.1.10.0100.03010.05
5.1.00.0030.0279.90
5.0.50.0000.0438.39
5.0.40.0000.0508.25
5.0.30.0030.0678.22
5.0.20.0100.0278.28
5.0.10.0070.0408.13
5.0.00.0000.0338.23
4.4.90.0070.0308.13
4.4.80.0000.0378.13
4.4.70.0000.0238.13
4.4.60.0000.0308.13
4.4.50.0000.0378.13
4.4.40.0000.0538.13
4.4.30.0070.0278.13
4.4.20.0030.0278.13
4.4.10.0030.0278.13
4.4.00.0000.0308.13
4.3.110.0030.0278.13
4.3.100.0070.0108.13
4.3.90.0030.0308.13
4.3.80.0070.0508.13
4.3.70.0070.0238.13
4.3.60.0100.0138.13
4.3.50.0070.0438.13
4.3.40.0100.0338.13
4.3.30.0000.0238.13
4.3.20.0000.0278.13
4.3.10.0030.0378.13
4.3.00.0000.0278.13

preferences:
48.19 ms | 401 KiB | 5 Q