3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = '$𝄞𝄞'; foreach ($string as $char) { var_dump(mb_strlen($char); }

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)
5.4.340.0080.03912.01
5.4.320.0040.03912.50
5.4.310.0070.03712.50
5.4.300.0070.04212.50
5.4.290.0060.04212.49
5.4.280.0100.03212.39
5.4.270.0070.03912.39
5.4.260.0070.03812.39
5.4.250.0050.03812.39
5.4.240.0080.03512.39
5.4.230.0080.03512.39
5.4.220.0070.03512.39
5.4.210.0050.03612.38
5.4.200.0040.03912.39
5.4.190.0030.03812.38
5.4.180.0050.03612.38
5.4.170.0050.03612.39
5.4.160.0110.03112.39
5.4.150.0080.03412.38
5.4.140.0070.03512.07
5.4.130.0060.03612.05
5.4.120.0050.03712.02
5.4.110.0090.03612.01
5.4.100.0050.03912.01
5.4.90.0060.03712.02
5.4.80.0060.03812.02
5.4.70.0100.03112.01
5.4.60.0110.04712.01
5.4.50.0080.03512.01
5.4.40.0110.03112.00
5.4.30.0070.03611.99
5.4.20.0090.03711.99
5.4.10.0180.04411.99
5.4.00.0130.04811.48
5.3.290.0060.04012.80
5.3.280.0090.04012.71
5.3.270.0080.04912.72
5.3.260.0090.04912.72
5.3.250.0070.03612.72
5.3.240.0040.04812.72
5.3.230.0090.03612.71
5.3.220.0090.03312.68
5.3.210.0080.03612.68
5.3.200.0080.03412.68
5.3.190.0060.03912.68
5.3.180.0020.04212.67
5.3.170.0060.03712.66
5.3.160.0060.04012.68
5.3.150.0050.03812.67
5.3.140.0040.04212.66
5.3.130.0040.04112.66
5.3.120.0040.04712.66
5.3.110.0060.03812.66
5.3.100.0090.03412.12
5.3.90.0060.03712.09
5.3.80.0070.03512.08
5.3.70.0040.04012.08
5.3.60.0050.04012.07
5.3.50.0080.03812.00
5.3.40.0050.03712.00
5.3.30.0080.03711.95
5.3.20.0050.04511.73
5.3.10.0050.03611.70
5.3.00.0050.03711.68
5.2.170.0070.0309.18
5.2.160.0040.0319.18
5.2.150.0100.0259.18
5.2.140.0050.0319.18
5.2.130.0070.0279.14
5.2.120.0020.0319.14
5.2.110.0020.0319.14
5.2.100.0020.0319.14
5.2.90.0090.0249.14
5.2.80.0070.0319.14
5.2.70.0050.0309.14
5.2.60.0040.0329.09
5.2.50.0080.0269.05
5.2.40.0040.0299.04
5.2.30.0030.0319.01
5.2.20.0070.0279.00
5.2.10.0070.0268.93
5.2.00.0060.0278.78
5.1.60.0060.0268.07
5.1.50.0090.0198.06
5.1.40.0020.0268.05
5.1.30.0020.0278.39
5.1.20.0060.0248.42
5.1.10.0050.0248.14
5.1.00.0050.0258.15
5.0.50.0040.0206.63
5.0.40.0020.0206.48
5.0.30.0060.0316.29
5.0.20.0050.0176.26
5.0.10.0040.0196.24
5.0.00.0030.0316.23
4.4.90.0030.0164.78
4.4.80.0010.0174.75
4.4.70.0020.0164.76
4.4.60.0040.0144.75
4.4.50.0030.0154.77
4.4.40.0030.0244.70
4.4.30.0020.0164.76
4.4.20.0050.0134.84
4.4.10.0050.0134.85
4.4.00.0040.0234.76
4.3.110.0030.0154.67
4.3.100.0030.0154.67
4.3.90.0040.0134.63
4.3.80.0050.0224.58
4.3.70.0030.0154.63
4.3.60.0030.0144.63
4.3.50.0010.0174.63
4.3.40.0030.0264.54
4.3.30.0030.0163.28
4.3.20.0030.0163.26
4.3.10.0010.0173.21
4.3.00.0000.0276.70

preferences:
141.28 ms | 1394 KiB | 7 Q