3v4l.org

run code in 300+ PHP versions simultaneously
<?php $♫ = "music"; var_dump( $♫ ); // string(5) "music" var_dump($len = mb_strlen("♫", '8bit'); $string = "♫"; echo mb_substr($string, $len, 3);

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)
5.4.280.0100.03612.37
5.4.270.0070.03812.38
5.4.260.0070.03912.38
5.4.250.0070.06412.38
5.4.240.0110.06512.38
5.4.230.0080.04912.37
5.4.220.0120.05212.37
5.4.210.0070.04412.37
5.4.200.0080.04512.37
5.4.190.0070.04312.36
5.4.180.0080.04312.36
5.4.170.0050.04512.37
5.4.160.0090.04112.37
5.4.150.0100.04112.36
5.4.140.0070.04712.05
5.4.130.0090.04212.04
5.4.120.0060.04312.00
5.4.110.0100.04212.00
5.4.100.0070.04212.00
5.4.90.0070.04512.00
5.4.80.0100.06012.00
5.4.70.0100.03911.99
5.4.60.0070.04311.99
5.4.50.0070.04211.99
5.4.40.0060.04411.98
5.4.30.0040.04311.98
5.4.20.0080.04211.97
5.4.10.0090.04311.98
5.4.00.0070.04211.47
5.3.280.0060.04112.71
5.3.270.0070.04112.72
5.3.260.0060.04212.72
5.3.250.0100.03612.72
5.3.240.0080.03912.72
5.3.230.0100.04212.71
5.3.220.0080.04512.68
5.3.210.0090.04712.68
5.3.200.0110.05012.68
5.3.190.0090.04712.67
5.3.180.0090.04512.67
5.3.170.0100.04512.67
5.3.160.0120.04212.68
5.3.150.0100.04312.68
5.3.140.0110.04112.66
5.3.130.0100.04412.66
5.3.120.0120.04212.66
5.3.110.0090.04512.66
5.3.100.0100.04612.12
5.3.90.0090.05212.08
5.3.80.0100.04612.07
5.3.70.0110.04312.07
5.3.60.0090.04012.07
5.3.50.0100.04812.00
5.3.40.0130.04612.00
5.3.30.0130.03911.94
5.3.20.0100.04111.71
5.3.10.0110.04611.69
5.3.00.0070.04311.67
5.2.170.0070.0399.17
5.2.160.0080.0439.17
5.2.150.0070.0369.16
5.2.140.0090.0349.16
5.2.130.0080.0309.12
5.2.120.0060.0349.12
5.2.110.0070.0349.13
5.2.100.0070.0319.13
5.2.90.0050.0359.12
5.2.80.0070.0379.12
5.2.70.0140.0609.12
5.2.60.0060.0309.08
5.2.50.0050.0319.05
5.2.40.0070.0289.02
5.2.30.0060.0309.00
5.2.20.0070.0298.98
5.2.10.0040.0318.91
5.2.00.0050.0348.77
5.1.60.0030.0288.06
5.1.50.0070.0258.06
5.1.40.0060.0268.03
5.1.30.0040.0278.39
5.1.20.0080.0278.41
5.1.10.0060.0368.14
5.1.00.0090.0418.13
5.0.50.0020.0236.61
5.0.40.0040.0196.47
5.0.30.0050.0306.28
5.0.20.0050.0196.26
5.0.10.0070.0226.23
5.0.00.0050.0476.22
4.4.90.0050.0234.78
4.4.80.0040.0264.76
4.4.70.0030.0194.75
4.4.60.0070.0284.75
4.4.50.0040.0194.77
4.4.40.0040.0274.71
4.4.30.0020.0224.76
4.4.20.0050.0174.84
4.4.10.0020.0184.85
4.4.00.0040.0294.76
4.3.110.0050.0164.67
4.3.100.0050.0164.67
4.3.90.0030.0194.63
4.3.80.0030.0384.59
4.3.70.0050.0194.63
4.3.60.0040.0204.63
4.3.50.0040.0154.63
4.3.40.0040.0234.53
4.3.30.0010.0183.28
4.3.20.0020.0163.25
4.3.10.0040.0143.22
4.3.00.0030.0208.95

preferences:
140.26 ms | 1394 KiB | 7 Q