3v4l.org

run code in 300+ PHP versions simultaneously
<?php $callBack = function($matches){ str_replace('_', '', $matches[0]); return ucwords($matches[0]); }; $stupidName = 'stupid_function_name'; $newName = preg_replace_callback('(_[a-z])', $callBack, $stupidName);

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)
8.3.70.0090.00618.43
8.3.60.0110.00416.63
8.3.50.0080.01022.23
8.3.40.0140.00318.92
8.3.30.0080.00818.78
8.3.20.0040.00420.16
8.3.10.0050.00323.61
8.3.00.0090.00022.39
8.2.190.0140.00418.41
8.2.180.0070.01316.63
8.2.170.0130.00322.96
8.2.160.0100.01019.45
8.2.150.0070.00024.18
8.2.140.0030.00524.66
8.2.130.0040.00422.18
8.2.120.0080.00026.35
8.2.110.0090.00021.30
8.2.100.0070.00418.14
8.2.90.0030.00619.22
8.2.80.0000.00817.97
8.2.70.0060.00317.88
8.2.60.0030.00617.93
8.2.50.0000.00818.10
8.2.40.0080.00020.55
8.2.30.0060.00319.34
8.2.20.0000.00717.96
8.2.10.0060.00318.05
8.2.00.0040.00418.00
8.1.280.0100.01025.92
8.1.270.0070.00023.79
8.1.260.0000.00728.09
8.1.250.0080.00028.09
8.1.240.0000.00923.97
8.1.230.0110.00020.30
8.1.220.0040.00417.74
8.1.210.0030.00618.77
8.1.200.0030.00617.48
8.1.190.0030.00617.35
8.1.180.0000.00918.10
8.1.170.0090.00018.62
8.1.160.0000.00722.15
8.1.150.0040.00419.02
8.1.140.0040.00419.54
8.1.130.0000.00717.77
8.1.120.0000.00717.59
8.1.110.0040.00417.55
8.1.100.0030.00717.67
8.1.90.0000.00817.66
8.1.80.0000.00717.66
8.1.70.0000.00717.66
8.1.60.0030.00517.77
8.1.50.0050.00317.67
8.1.40.0040.00417.50
8.1.30.0040.00417.88
8.1.20.0070.00017.74
8.1.10.0080.00017.54
8.1.00.0040.00417.46
8.0.300.0040.00418.77
8.0.290.0000.00816.75
8.0.280.0040.00418.41
8.0.270.0000.00717.21
8.0.260.0030.00317.41
8.0.250.0000.00716.93
8.0.240.0000.00617.03
8.0.230.0040.00417.05
8.0.220.0050.00216.96
8.0.210.0000.00716.96
8.0.200.0000.00617.05
8.0.190.0040.00417.08
8.0.180.0000.00717.05
8.0.170.0000.00716.98
8.0.160.0000.00716.96
8.0.150.0050.00217.03
8.0.140.0060.00316.90
8.0.130.0000.00613.41
8.0.120.0040.00416.92
8.0.110.0040.00416.86
8.0.100.0030.00616.84
8.0.90.0000.00716.89
8.0.80.0040.01216.97
8.0.70.0040.00416.98
8.0.60.0000.00716.83
8.0.50.0040.00417.00
8.0.30.0090.00817.18
8.0.20.0100.01117.40
8.0.10.0000.00717.13
8.0.00.0060.01716.65
7.4.330.0000.00515.08
7.4.320.0030.00316.70
7.4.300.0060.00016.81
7.4.290.0040.00416.82
7.4.280.0080.00016.70
7.4.270.0000.00716.73
7.4.260.0000.00716.79
7.4.250.0040.00416.72
7.4.240.0050.00316.58
7.4.230.0030.00316.89
7.4.220.0060.01216.80
7.4.210.0150.00016.82
7.4.200.0000.00716.60
7.4.160.0080.01016.66
7.4.150.0130.00717.40
7.4.140.0090.00917.86
7.4.130.0120.00816.76
7.4.120.0110.00916.75
7.4.110.0100.00816.51
7.4.100.0110.00616.76
7.4.90.0150.00616.62
7.4.80.0090.01219.39
7.4.70.0090.00916.64
7.4.60.0140.00316.46
7.4.50.0070.01116.47
7.4.40.0030.01316.53
7.4.30.0140.00416.52
7.4.00.0110.00314.96
7.3.330.0030.00313.27
7.3.320.0000.00513.38
7.3.310.0030.00516.32
7.3.300.0070.00016.28
7.3.290.0080.00716.36
7.3.280.0090.00816.36
7.3.270.0170.00017.40
7.3.260.0100.00816.69
7.3.250.0080.01016.56
7.3.240.0090.00816.56
7.3.230.0090.00916.67
7.3.210.0120.00316.52
7.3.200.0100.00716.82
7.3.190.0080.00916.53
7.3.180.0090.00916.82
7.3.170.0100.01316.41
7.3.160.0030.01316.46
7.3.120.0060.01215.09
7.3.110.0120.00615.06
7.3.100.0070.01115.14
7.3.90.0030.01215.16
7.3.80.0060.00314.88
7.3.70.0120.00015.06
7.3.60.0030.00615.08
7.3.50.0060.00614.83
7.3.40.0100.00314.54
7.3.30.0070.00715.01
7.3.20.0030.00816.62
7.3.10.0000.01416.84
7.3.00.0000.01016.83
7.2.330.0030.01416.59
7.2.320.0100.00716.89
7.2.310.0140.00616.73
7.2.300.0070.01016.75
7.2.290.0160.00616.86
7.2.250.0070.01115.20
7.2.240.0000.02114.97
7.2.230.0100.01015.38
7.2.220.0100.00315.11
7.2.210.0120.00015.30
7.2.200.0000.01215.30
7.2.190.0100.00315.25
7.2.180.0000.00915.18
7.2.170.0100.00615.15
7.2.60.0060.00916.84
7.1.330.0090.00615.70
7.1.320.0080.00015.79
7.1.310.0030.00715.71
7.1.300.0060.00915.62
7.1.290.0040.00816.14
7.1.280.0030.00615.91
7.1.270.0000.01315.79
7.1.260.0070.00416.08
7.1.200.0040.00715.66
7.1.70.0070.00717.40
7.1.60.0040.00817.44
7.1.00.0000.08022.32
7.0.200.0310.00014.89
7.0.111.0200.08020.03
7.0.100.0370.06319.95
7.0.90.0330.07019.85
7.0.80.0170.06319.92
7.0.70.0370.04719.97
7.0.60.0300.05319.95
7.0.50.0470.06320.43
7.0.40.0470.04720.39
7.0.30.0470.07320.32
7.0.20.0470.05720.16
7.0.10.0470.05720.43
7.0.00.0400.05720.38
5.6.250.0230.05020.68
5.6.240.0070.06720.65
5.6.230.0070.06020.66
5.6.220.0000.06720.61
5.6.210.0130.07720.71
5.6.200.0130.06020.98
5.6.190.0070.06020.95
5.6.180.0200.05721.05
5.6.170.0130.08021.12
5.6.160.0100.06021.14
5.6.150.0170.05721.09
5.6.140.0130.05320.95
5.6.130.0130.06721.05
5.6.120.0000.07020.96
5.6.110.0230.07721.08
5.6.100.0070.06320.93
5.6.90.0130.06321.20
5.6.80.0030.06320.25
5.6.70.0270.05020.33
5.6.60.0070.07720.59
5.6.50.0130.06720.65
5.6.40.0100.08020.50
5.6.30.0270.06020.44
5.6.20.0170.07720.62
5.6.10.0330.04020.28
5.6.00.0170.05320.29

preferences:
65.11 ms | 401 KiB | 5 Q