3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = "KS and this isn’t a test of symbols ‘ and I still don’t understan ‘causes"; var_dump($str); str = iconv("utf-8", "utf-8//IGNORE", $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)
5.4.270.0060.03812.36
5.4.260.0040.03912.36
5.4.250.0050.03912.36
5.4.240.0050.03612.36
5.4.230.0090.03412.35
5.4.220.0050.03812.36
5.4.210.0040.03712.35
5.4.200.0090.03612.35
5.4.190.0030.03912.35
5.4.180.0050.03712.35
5.4.170.0030.03812.36
5.4.160.0090.03212.35
5.4.150.0060.03612.34
5.4.140.0070.03612.04
5.4.130.0090.03212.02
5.4.120.0040.03811.98
5.4.110.0080.03411.98
5.4.100.0050.03811.98
5.4.90.0040.03811.98
5.4.80.0070.03411.98
5.4.70.0070.03311.97
5.4.60.0090.03111.97
5.4.50.0040.03611.98
5.4.40.0070.03311.96
5.4.30.0050.04611.96
5.4.20.0060.04911.96
5.4.10.0050.03511.96
5.4.00.0080.03811.46
5.3.280.0070.03812.71
5.3.270.0080.03812.72
5.3.260.0050.04112.72
5.3.250.0070.03812.72
5.3.240.0080.03512.72
5.3.230.0050.04412.70
5.3.220.0080.04112.68
5.3.210.0080.03712.68
5.3.200.0060.03612.68
5.3.190.0060.04112.68
5.3.180.0070.04312.68
5.3.170.0050.03812.67
5.3.160.0080.03512.68
5.3.150.0080.03812.68
5.3.140.0080.03412.66
5.3.130.0070.05012.66
5.3.120.0040.04512.66
5.3.110.0060.04212.66
5.3.100.0070.03812.12
5.3.90.0060.03612.08
5.3.80.0080.04312.07
5.3.70.0080.03412.07
5.3.60.0110.03212.06
5.3.50.0070.03812.00
5.3.40.0060.03612.00
5.3.30.0030.04011.94
5.3.20.0080.04111.70
5.3.10.0070.03611.66
5.3.00.0090.04011.65

preferences:
142.43 ms | 1394 KiB | 7 Q