3v4l.org

run code in 300+ PHP versions simultaneously
<?php // Your code here! echo strlen(mb_convert_encoding('俱', 'UTF-16')) ; echo strlen(mb_convert_encoding('𠀋', 'UTF-16')); ?>

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)
8.5.10.0110.00619.45
8.5.00.0130.01019.69
8.4.160.0060.00423.93
8.4.150.0020.00114.05
8.4.140.0120.00917.50
8.4.130.0100.00917.76
8.4.120.0130.00820.43
8.4.110.0110.01022.28
8.4.100.0160.00417.42
8.4.90.0100.01018.43
8.4.80.0100.00917.82
8.4.70.0110.01017.62
8.4.60.0160.00318.79
8.4.50.0060.00518.64
8.4.40.0140.00720.55
8.4.30.0080.01222.43
8.4.20.0160.00017.71
8.4.10.0030.00621.76
8.3.280.0150.00618.35
8.3.270.0100.01016.18
8.3.260.0110.00816.66
8.3.250.0060.00219.02
8.3.240.0100.00716.41
8.3.230.0100.00916.45
8.3.220.0130.00517.17
8.3.210.0060.00318.51
8.3.200.0050.00316.46
8.3.190.0120.00617.28
8.3.180.0130.00516.41
8.3.170.0040.00418.84
8.3.160.0120.00618.44
8.3.150.0040.00420.91
8.3.140.0080.00018.72
8.3.130.0050.00318.53
8.3.120.0110.00018.96
8.3.110.0030.00720.94
8.3.100.0060.01224.06
8.3.90.0040.01326.77
8.3.80.0080.00317.97
8.3.70.0110.01116.38
8.3.60.0040.01116.38
8.3.50.0090.00616.57
8.3.40.0100.00720.35
8.3.30.0110.00718.42
8.3.20.0040.00424.18
8.3.10.0070.00024.66
8.3.00.0040.00426.16
8.2.290.0090.01020.16
8.2.280.0030.00518.06
8.2.270.0040.00416.92
8.2.260.0070.01116.26
8.2.250.0040.00416.42
8.2.240.0040.00417.06
8.2.230.0130.00322.58
8.2.220.0040.00437.54
8.2.210.0000.00926.77
8.2.200.0090.00017.84
8.2.190.0150.00016.58
8.2.180.0180.00316.38
8.2.170.0160.00619.00
8.2.160.0090.00422.96
8.2.150.0030.00525.66
8.2.140.0090.00024.66
8.2.130.0040.00426.16
8.2.120.0060.00319.60
8.2.110.0060.00320.91
8.2.100.0090.00317.78
8.2.90.0000.00717.91
8.2.80.0000.00918.16
8.2.70.0000.00817.50
8.2.60.0150.00417.38
8.2.50.0120.00717.34
8.2.40.0160.00517.38
8.2.30.0160.00017.13
8.2.20.0160.00017.38
8.2.10.0090.00917.13
8.2.00.0160.00017.00
8.1.330.0110.00721.73
8.1.320.0140.00515.95
8.1.310.0060.00916.54
8.1.300.0000.01018.16
8.1.290.0040.00430.84
8.1.280.0120.00625.92
8.1.270.0000.00824.66
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0040.00423.92
8.1.230.0070.00420.95
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0060.00317.10
8.1.190.0080.00817.00
8.1.180.0110.00517.00
8.1.170.0130.00316.98
8.1.160.0130.00417.13
8.1.150.0100.01017.00
8.1.140.0090.00917.00
8.1.130.0100.00717.22
8.1.120.0070.01117.38
8.1.110.0150.00217.00
8.1.100.0120.00417.25
8.1.90.0120.00417.23
8.1.80.0130.00317.00
8.1.70.0050.01116.88
8.1.60.0060.01217.38
8.1.50.0140.00416.97
8.1.40.0110.00717.23
8.1.30.0070.01117.38
8.1.20.0160.00317.38
8.1.10.0120.00617.13
8.1.00.0140.00317.25
8.0.300.0070.00020.03
8.0.290.0040.00416.75
8.0.280.0070.01016.52
8.0.270.0120.00416.52
8.0.260.0090.00916.61
8.0.250.0130.00316.75
8.0.240.0170.00016.52
8.0.230.0090.00916.52
8.0.220.0130.00316.52
8.0.210.0130.00316.52
8.0.200.0080.00816.52
8.0.190.0100.00716.62
8.0.180.0170.00016.52
8.0.170.0100.00716.52
8.0.160.0160.00016.63
8.0.150.0120.00716.52
8.0.140.0150.00516.52
8.0.130.0150.00516.52
8.0.120.0140.00216.52
8.0.110.0130.00316.52
8.0.100.0160.00016.52
8.0.90.0140.00216.52
8.0.80.0080.00816.52
8.0.70.0120.00316.52
8.0.60.0080.00816.63
8.0.50.0080.00816.52
8.0.30.0110.00716.52
8.0.20.0130.00316.52
8.0.10.0100.00516.52

preferences:
93.5 ms | 403 KiB | 5 Q