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[0].ucwords(str_replace('_', '', $u[1])); } , '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)
8.3.40.0120.00319.04
8.3.30.0140.00020.15
8.3.20.0000.00820.20
8.3.10.0040.00420.99
8.3.00.0080.00022.38
8.2.170.0090.00622.96
8.2.160.0070.01022.43
8.2.150.0000.00824.18
8.2.140.0060.00324.66
8.2.130.0040.00426.16
8.2.120.0000.00720.90
8.2.110.0080.00019.33
8.2.100.0040.00817.97
8.2.90.0030.00519.17
8.2.80.0030.00517.97
8.2.70.0050.00517.63
8.2.60.0000.00817.93
8.2.50.0000.00818.07
8.2.40.0030.00518.28
8.2.30.0000.00919.37
8.2.20.0050.00317.77
8.2.10.0040.00417.90
8.2.00.0000.00817.91
8.1.270.0040.00423.99
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0090.00023.96
8.1.230.0000.01120.97
8.1.220.0000.00818.77
8.1.210.0050.00319.16
8.1.200.0030.00617.23
8.1.190.0000.00817.52
8.1.180.0000.00818.10
8.1.170.0040.00418.66
8.1.160.0000.00718.79
8.1.150.0050.00318.68
8.1.140.0000.00717.52
8.1.130.0070.00017.80
8.1.120.0080.00017.53
8.1.110.0040.00417.46
8.1.100.0070.00017.59
8.1.90.0000.00717.55
8.1.80.0050.00317.58
8.1.70.0030.00317.55
8.1.60.0000.00917.72
8.1.50.0030.00617.67
8.1.40.0050.00317.64
8.1.30.0040.00417.65
8.1.20.0080.00017.70
8.1.10.0060.00317.68
8.1.00.0040.00417.49
8.0.300.0060.00319.89
8.0.290.0040.00417.18
8.0.280.0000.00718.26
8.0.270.0030.00317.21
8.0.260.0000.00716.91
8.0.250.0070.00017.05
8.0.240.0080.00016.94
8.0.230.0000.00717.08
8.0.220.0080.00016.97
8.0.210.0070.00017.04
8.0.200.0070.00017.06
8.0.190.0040.00417.07
8.0.180.0050.00216.89
8.0.170.0080.00016.98
8.0.160.0070.00016.98
8.0.150.0030.00316.97
8.0.140.0080.00416.94
8.0.130.0000.00513.45
8.0.120.0050.00316.95
8.0.110.0040.00417.01
8.0.100.0040.00417.00
8.0.90.0080.00016.81
8.0.80.0000.01516.94
8.0.70.0000.00717.10
8.0.60.0060.00316.98
8.0.50.0030.00516.87
8.0.30.0110.00817.07
8.0.20.0140.01217.40
8.0.10.0050.00317.06
8.0.00.0080.01116.98
7.4.330.0020.00216.78
7.4.320.0000.00616.66
7.4.300.0040.00416.78
7.4.290.0040.00416.77
7.4.280.0000.00716.65
7.4.270.0050.00316.72
7.4.260.0030.00313.43
7.4.250.0000.00916.71
7.4.240.0020.00516.64
7.4.230.0040.00416.70
7.4.220.0110.00716.54
7.4.210.0090.00716.64
7.4.200.0030.00316.64
7.4.190.0030.00316.66
7.4.160.0070.01016.89
7.4.150.0110.00817.40
7.4.140.0110.00617.86
7.4.130.0110.01116.66
7.4.120.0060.01316.69
7.4.110.0070.01016.80
7.4.100.0120.00616.64
7.4.90.0140.00316.48
7.4.80.0070.01019.39
7.4.70.0090.00916.40
7.4.60.0070.01316.75
7.4.50.0000.00816.68
7.4.40.0060.00922.77
7.4.30.0100.01416.66
7.4.00.0070.01015.06
7.3.330.0000.00513.38
7.3.320.0000.00713.38
7.3.310.0070.00016.45
7.3.300.0030.00316.40
7.3.290.0090.00616.40
7.3.280.0110.00616.41
7.3.270.0120.00617.40
7.3.260.0130.01318.24
7.3.250.0110.00916.62
7.3.240.0080.00816.69
7.3.230.0030.01516.79
7.3.210.0140.00416.45
7.3.200.0180.00619.39
7.3.190.0120.00616.48
7.3.180.0080.00816.32
7.3.170.0030.01316.70
7.3.160.0120.00816.56
7.3.120.0130.00714.90
7.3.110.0130.00714.61
7.3.100.0100.00714.85
7.3.90.0030.01415.08
7.3.80.0090.00615.17
7.3.70.0090.00915.04
7.3.60.0030.00915.06
7.3.50.0080.00814.96
7.3.40.0040.01215.05
7.3.30.0110.00015.01
7.3.20.0040.01116.93
7.3.10.0070.00716.79
7.3.00.0040.01216.80
7.2.330.0110.00716.81
7.2.320.0170.00416.84
7.2.310.0100.01416.80
7.2.300.0000.01716.64
7.2.290.0140.00416.88
7.2.240.0040.01514.80
7.2.230.0030.01315.29
7.2.220.0120.00815.32
7.2.210.0090.00615.10
7.2.200.0100.00715.38
7.2.190.0040.01115.01
7.2.180.0070.01014.98
7.2.170.0040.01415.18
7.2.160.0040.00815.14
7.2.150.0110.00417.28
7.2.140.0070.00717.15
7.2.130.0060.00817.11
7.2.120.0060.00816.85
7.2.110.0060.00917.00
7.2.100.0060.00717.03
7.2.90.0050.00816.90
7.2.80.0090.00317.21
7.2.70.0040.00916.87
7.2.60.0080.00616.94
7.2.50.0050.00717.18
7.2.40.0050.00817.02
7.2.30.0050.00917.05
7.2.20.0030.01116.94
7.2.10.0070.00617.06
7.2.00.0030.01017.67
7.1.330.0110.00716.19
7.1.320.0070.01115.83
7.1.310.0030.01315.79
7.1.300.0030.01315.88
7.1.290.0090.00616.18
7.1.280.0040.00816.07
7.1.270.0030.00716.06
7.1.260.0110.00315.95
7.1.250.0070.00515.76
7.1.240.0150.00015.81
7.1.230.0030.00915.91
7.1.220.0050.00515.90
7.1.210.0040.01116.11
7.1.200.0060.00016.14
7.1.190.0030.01016.13
7.1.180.0040.00815.66
7.1.170.0090.00316.05
7.1.160.0070.00715.95
7.1.150.0030.00315.96
7.1.140.0030.00916.04
7.1.130.0050.00316.01
7.1.120.0050.00815.88
7.1.110.0040.00716.13
7.1.100.0060.00416.96
7.1.90.0040.00815.85
7.1.80.0090.00615.70
7.1.70.0030.01016.52
7.1.60.0050.01217.57
7.1.50.0030.01016.56
7.1.40.0070.00715.93
7.1.30.0030.00315.93
7.1.20.0000.00715.84
7.1.10.0060.00615.94
7.1.00.0060.03719.16
7.0.320.0000.00915.59
7.0.310.0060.00615.40
7.0.300.0000.01115.57
7.0.290.0070.00015.63
7.0.280.0030.00715.70
7.0.270.0100.00315.52
7.0.260.0060.00615.33
7.0.250.0030.00615.70
7.0.240.0040.00815.22
7.0.230.0030.00515.63
7.0.220.0080.00415.61
7.0.210.0000.01215.57
7.0.200.0080.00616.33
7.0.190.0000.00615.53
7.0.180.0050.00315.59
7.0.170.0000.01315.59
7.0.160.0030.01015.56
7.0.150.0040.00715.58
7.0.140.0090.03718.87
7.0.130.0000.01415.43
7.0.120.0040.00815.66
7.0.110.0060.00315.53
7.0.100.0050.04617.70
7.0.90.0100.03817.82
7.0.80.0070.04617.63
7.0.70.0080.04117.67
7.0.60.0070.04517.72
7.0.50.0060.04617.91
7.0.40.0050.04516.77
7.0.30.0050.03316.82
7.0.20.0140.03716.70
7.0.10.0100.03816.84
7.0.00.0080.03216.67
5.6.380.0000.01114.73
5.6.370.0090.00314.41
5.6.360.0030.00314.20
5.6.350.0030.00914.58
5.6.340.0040.00714.62
5.6.330.0070.00314.59
5.6.320.0060.00614.50
5.6.310.0030.00914.32
5.6.300.0100.00314.63
5.6.290.0040.01214.52
5.6.280.0090.03417.61
5.6.270.0000.00914.41
5.6.260.0070.00314.17
5.6.250.0030.02817.61
5.6.240.0070.03817.50
5.6.230.0100.04017.51
5.6.220.0120.03817.59
5.6.210.0080.02417.57
5.6.200.0100.04217.77
5.6.190.0050.03917.84
5.6.180.0020.04617.75
5.6.170.0050.04517.62
5.6.160.0070.03417.60
5.6.150.0120.04017.74
5.6.140.0050.04017.80
5.6.130.0080.03217.58
5.6.120.0080.04317.89
5.6.110.0080.03217.69
5.6.100.0080.04217.76
5.6.90.0050.04717.65
5.6.80.0080.04417.41
5.6.70.0110.03817.34
5.6.60.0050.03417.40
5.6.50.0100.04217.43
5.6.40.0080.04017.36
5.6.30.0070.04317.33
5.6.20.0060.04117.21
5.6.10.0050.04417.41
5.6.00.0080.04017.38
5.5.380.0070.04315.75
5.5.370.0050.04515.96
5.5.360.0050.03815.76
5.5.350.0090.03815.87
5.5.340.0050.04416.01
5.5.330.0020.03615.94
5.5.320.0080.04316.14
5.5.310.0070.03815.97
5.5.300.0030.03416.07
5.5.290.0020.04416.00
5.5.280.0030.04916.07
5.5.270.0070.04515.90
5.5.260.0120.02916.10
5.5.250.0030.04515.86
5.5.240.0030.04115.76
5.5.230.0050.04415.66
5.5.220.0080.04115.74
5.5.210.0160.04015.70
5.5.200.0070.03815.64
5.5.190.0100.03715.65
5.5.180.0050.03215.72
5.5.170.0030.00914.45
5.5.160.0050.04215.63
5.5.150.0030.04715.52
5.5.140.0080.04215.61
5.5.130.0110.03315.75
5.5.120.0060.02715.67
5.5.110.0080.04215.72
5.5.100.0000.03215.60
5.5.90.0050.04115.59
5.5.80.0080.02915.68
5.5.70.0070.04415.67
5.5.60.0100.03815.64
5.5.50.0110.03315.70
5.5.40.0080.03815.63
5.5.30.0050.03315.68
5.5.20.0080.03815.72
5.5.10.0080.03515.68
5.5.00.0080.04215.59
5.4.450.0050.04015.27
5.4.440.0020.02715.36
5.4.430.0020.04315.45
5.4.420.0070.04015.29
5.4.410.0070.03315.20
5.4.400.0050.04415.07
5.4.390.0080.04015.11
5.4.380.0050.04115.12
5.4.370.0050.03815.19
5.4.360.0090.03815.21
5.4.350.0100.03415.12
5.4.340.0080.03715.12
5.4.330.0050.00011.17
5.4.320.0030.04115.05
5.4.310.0000.02915.06
5.4.300.0080.04615.13
5.4.290.0090.02515.13
5.4.280.0030.04515.27
5.4.270.0060.02515.06
5.4.260.0080.03715.20
5.4.250.0000.04615.25
5.4.240.0070.03715.27
5.4.230.0100.03415.09
5.4.220.0030.02815.07
5.4.210.0050.04215.18
5.4.200.0080.02315.05
5.4.190.0080.03315.11
5.4.180.0090.03715.09
5.4.170.0130.03215.19
5.4.160.0070.03815.15
5.4.150.0090.03014.97
5.4.140.0060.03813.77
5.4.130.0020.02513.90
5.4.120.0020.04313.72
5.4.110.0000.04713.88
5.4.100.0030.03813.76
5.4.90.0070.04013.67
5.4.80.0060.03913.86
5.4.70.0030.03813.77
5.4.60.0120.03513.69
5.4.50.0080.03313.85
5.4.40.0040.02513.76
5.4.30.0020.04013.78
5.4.20.0050.04013.86
5.4.10.0060.03813.83
5.4.00.0050.03513.58
5.3.290.0060.04012.90
5.3.280.0030.04612.81
5.3.270.0020.03712.88
5.3.260.0130.03712.80
5.3.250.0050.03312.90
5.3.240.0070.03312.83
5.3.230.0070.03212.84
5.3.220.0100.03812.78
5.3.210.0060.03812.81
5.3.200.0070.04012.79
5.3.190.0060.03812.87
5.3.180.0080.03912.83
5.3.170.0050.03512.85
5.3.160.0030.03812.84
5.3.150.0050.03312.85
5.3.140.0020.02512.79
5.3.130.0050.03612.87
5.3.120.0070.03412.77
5.3.110.0030.04212.82
5.3.100.0050.04012.56
5.3.90.0060.03812.59
5.3.80.0070.03912.50
5.3.70.0020.04312.54
5.3.60.0080.03812.61
5.3.50.0030.04312.58
5.3.40.0050.02212.53
5.3.30.0060.03712.43
5.3.20.0000.02612.38
5.3.10.0030.03812.39
5.3.00.0080.03712.38
5.2.170.0050.02011.72
5.2.160.0050.03011.72
5.2.150.0020.03511.72
5.2.140.0030.02811.72
5.2.130.0090.02811.72
5.2.120.0060.03211.72
5.2.110.0060.02011.72
5.2.100.0120.02711.72
5.2.90.0040.03411.72
5.2.80.0050.02511.72
5.2.70.0070.01711.72
5.2.60.0040.03211.72
5.2.50.0010.03511.72
5.2.40.0070.02511.72
5.2.30.0080.02811.72
5.2.20.0040.03211.72
5.2.10.0080.02611.72
5.2.00.0050.03411.72
5.1.60.0030.02911.72
5.1.50.0070.02711.72
5.1.40.0060.02511.72
5.1.30.0050.03011.72
5.1.20.0050.01511.72
5.1.10.0030.02511.72
5.1.00.0090.02711.72
5.0.50.0030.02511.72
5.0.40.0030.02311.72
5.0.30.0030.02511.72
5.0.20.0060.01211.72
5.0.10.0020.02511.72
5.0.00.0070.02811.72
4.4.90.0010.02011.72
4.4.80.0050.01711.72
4.4.70.0040.01711.72
4.4.60.0050.01811.72
4.4.50.0050.01611.72
4.4.40.0000.02111.72
4.4.30.0000.01311.72
4.4.20.0010.01811.72
4.4.10.0050.01711.72
4.4.00.0030.02611.72
4.3.110.0020.01811.72
4.3.100.0030.02011.72
4.3.90.0060.01511.72
4.3.80.0030.02511.72
4.3.70.0030.01811.72
4.3.60.0030.02011.72
4.3.50.0020.02111.72
4.3.40.0050.02311.72
4.3.30.0000.01611.72
4.3.20.0060.00811.72
4.3.10.0000.02111.72
4.3.00.0040.01711.72

preferences:
51.55 ms | 400 KiB | 5 Q