3v4l.org

run code in 500+ PHP versions simultaneously
<?php namespace A { // class xBefore {} } namespace A { use y as xAfter; use y as xBefore; class y {} } namespace A { class xAfter {} }

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)
8.5.80.0100.00717.60
8.5.70.0130.00416.55
8.5.60.0050.01016.56
8.5.50.0120.00516.40
8.5.30.0150.00218.11
8.5.20.0090.00419.87
8.5.10.0110.00716.37
8.5.00.0040.00522.72
8.4.230.0130.00819.43
8.4.220.0080.01021.17
8.4.210.0110.00719.42
8.4.180.0090.01521.92
8.4.170.0140.00823.90
8.4.160.0120.01023.85
8.4.150.0090.00316.80
8.4.140.0100.01017.21
8.4.130.0170.00417.83
8.4.120.0100.00820.53
8.4.110.0120.00917.68
8.4.100.0380.01017.52
8.4.90.0440.00717.34
8.4.80.0290.00417.63
8.4.70.0180.00417.31
8.4.60.0340.00717.26
8.4.50.0300.00917.69
8.4.40.0420.01317.34
8.4.30.0580.00816.88
8.4.20.0430.00817.03
8.4.10.0340.00417.10
8.3.320.0110.00918.34
8.3.310.0110.01018.23
8.3.300.0110.01020.71
8.3.290.0130.01020.70
8.3.280.0140.00718.30
8.3.270.0130.00616.50
8.3.260.0090.00916.30
8.3.250.0060.00218.84
8.3.240.0200.00416.22
8.3.230.0190.00216.61
8.3.220.0150.00616.42
8.3.210.0180.00416.49
8.3.200.0170.00416.40
8.3.190.0150.00616.34
8.3.180.0370.01016.46
8.3.170.0400.00916.39
8.3.160.0420.01016.36
8.3.150.0320.00416.19
8.3.140.0350.00716.54
8.3.130.0140.00616.26
8.3.120.0300.00816.47
8.3.110.0310.00316.45
8.3.100.0200.00316.21
8.3.90.0230.00216.39
8.3.80.0410.00616.43
8.3.70.0380.01216.42
8.3.60.0450.00816.39
8.3.50.0450.00616.34
8.3.40.0360.01117.24
8.3.30.0310.00717.20
8.3.20.0190.00317.34
8.3.10.0240.00617.18
8.3.00.0290.01017.41
8.2.320.0120.00717.85
8.2.310.0120.00717.95
8.2.300.0100.01118.00
8.2.290.0390.01016.73
8.2.280.0370.00616.65
8.2.270.0350.00816.24
8.2.260.0140.00516.66
8.2.250.0320.00516.23
8.2.240.0380.00616.74
8.2.230.0370.00616.01
8.2.220.0230.00316.14
8.2.210.0140.00416.61
8.2.200.0210.00316.01
8.2.190.0390.00516.36
8.2.180.0310.01116.34
8.2.170.0370.00817.43
8.2.160.0370.00517.55
8.2.150.0210.00317.64
8.2.140.0180.01117.47
8.2.130.0350.00517.29
8.2.120.0340.00617.31
8.2.110.0270.00617.31
8.2.100.0240.01117.66
8.2.90.0300.00717.28
8.2.80.0310.00217.30
8.2.70.0360.00817.18
8.2.60.0340.00917.56
8.2.50.0480.00617.23
8.2.40.0340.01017.37
8.2.30.0240.00517.29
8.2.20.0140.00417.49
8.2.10.0150.00317.39
8.2.00.0120.00617.48
8.1.340.0110.00817.52

preferences:
56.7 ms | 872 KiB | 5 Q