3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = "www3testabc"; $str = mb_ereg_replace("^www[0-9]*", "", $str); echo $str;

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)
8.3.60.0180.00016.63
8.3.50.0070.00718.18
8.3.40.0040.01118.79
8.3.30.0070.00718.65
8.3.20.0050.00320.47
8.3.10.0050.00322.03
8.3.00.0040.00417.50
8.2.180.0060.00918.29
8.2.170.0110.00722.96
8.2.160.0150.00019.33
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0040.00421.20
8.2.110.0030.00620.30
8.2.100.0040.00817.84
8.2.90.0000.00817.91
8.2.80.0000.00918.05
8.2.70.0040.00418.03
8.2.60.0050.00317.93
8.2.50.0040.00418.10
8.2.40.0000.00820.49
8.2.30.0030.00519.18
8.2.20.0030.00618.07
8.2.10.0000.00718.47
8.2.00.0000.00818.27
8.1.280.0120.00625.92
8.1.270.0070.00724.09
8.1.260.0000.00726.35
8.1.250.0040.00428.09
8.1.240.0090.00023.82
8.1.230.0090.00323.88
8.1.220.0000.00717.76
8.1.210.0000.00918.77
8.1.200.0060.00617.13
8.1.190.0040.00417.22
8.1.180.0070.00018.10
8.1.170.0040.00418.66
8.1.160.0030.00518.95
8.1.150.0000.00720.12
8.1.140.0050.00219.55
8.1.130.0040.00419.05
8.1.120.0080.00017.51
8.1.110.0020.00517.49
8.1.100.0030.00517.52
8.1.90.0070.00017.40
8.1.80.0000.00717.60
8.1.70.0000.00717.51
8.1.60.0000.00817.63
8.1.50.0040.00417.62
8.1.40.0000.00917.52
8.1.30.0000.00817.74
8.1.20.0070.00317.29
8.1.10.0040.00417.54
8.1.00.0060.00617.56
8.0.300.0070.00020.06
8.0.290.0040.00416.88
8.0.280.0070.00018.63
8.0.270.0070.00016.95
8.0.260.0000.00719.07
8.0.250.0070.00017.03
8.0.240.0080.00017.12
8.0.230.0000.00717.07
8.0.220.0030.00316.92
8.0.210.0030.00316.84
8.0.200.0030.00317.03
8.0.190.0040.00416.96
8.0.180.0070.00316.92
8.0.170.0000.00716.86
8.0.160.0030.00316.98
8.0.150.0080.00316.96
8.0.140.0000.00716.95
8.0.130.0000.00613.39
8.0.120.0040.00416.82
8.0.110.0000.00716.94
8.0.100.0040.00416.82
8.0.90.0070.00017.01
8.0.80.0080.00716.95
8.0.70.0000.00816.86
8.0.60.0050.00216.95
8.0.50.0000.00716.86
8.0.30.0100.01217.22
8.0.20.0100.00817.40
8.0.10.0040.00417.13
8.0.00.0030.01416.63
7.4.330.0070.00015.55
7.4.320.0000.00616.52
7.4.300.0000.00616.56
7.4.290.0030.00316.57
7.4.280.0080.00016.65
7.4.270.0030.00316.58
7.4.260.0070.00016.55
7.4.250.0040.00416.42
7.4.240.0070.00016.51
7.4.230.0000.00616.37
7.4.220.0130.00416.45
7.4.210.0110.00616.58
7.4.200.0030.00316.64
7.4.160.0090.00716.46
7.4.150.0140.00317.40
7.4.140.0080.01117.86
7.4.130.0100.01016.34
7.4.120.0110.01016.60
7.4.110.0070.01016.59
7.4.100.0120.00416.60
7.4.90.0160.00716.48
7.4.80.0070.01419.39
7.4.70.0100.01316.66
7.4.60.0130.00316.48
7.4.50.0040.01116.25
7.4.40.0100.00716.26
7.4.30.0070.01416.47
7.4.00.0030.00615.15
7.3.330.0000.00513.03
7.3.320.0000.00513.12
7.3.310.0000.00716.34
7.3.300.0000.00716.11
7.3.290.0070.00716.26
7.3.280.0100.00816.27
7.3.270.0150.00617.40
7.3.260.0060.01216.36
7.3.240.0090.01216.53
7.3.230.0130.00316.23
7.3.210.0120.00616.39
7.3.200.0060.01016.38
7.3.190.0040.01716.54
7.3.180.0090.00616.35
7.3.170.0120.00416.26
7.3.160.0070.00816.33
7.2.330.0070.01016.61
7.2.320.0170.00016.72
7.2.310.0110.00616.42
7.2.300.0150.00816.44
7.2.290.0070.01116.72
7.2.60.0070.01016.69
7.2.50.0080.00416.97
7.1.200.0150.00515.49
7.1.70.0030.00617.21
7.1.60.0070.00317.12
7.1.40.0200.01334.34
7.1.30.0270.01034.63
7.1.20.0270.00734.49
7.1.10.0100.00716.57
7.1.00.0070.00716.59
7.0.200.0060.00616.75
7.0.180.0030.01316.02
7.0.170.0030.01316.15
7.0.160.0070.00716.04
7.0.150.0070.01316.14
7.0.140.0030.01316.13
7.0.130.0070.01316.35
7.0.120.0030.01316.48
7.0.110.0000.01316.37
7.0.100.0100.00716.20
7.0.90.0030.01016.18
7.0.80.0030.01016.01
7.0.70.0000.01316.13
7.0.60.0100.01015.97
7.0.50.0030.01016.50
7.0.40.0000.01316.45
7.0.30.0000.01316.55
7.0.20.0030.00716.27
7.0.10.0070.00716.28
7.0.00.0000.01316.28

preferences:
63.73 ms | 400 KiB | 5 Q