3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = '2_guys'; var_dump( ++(++$a));

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)
5.4.350.0080.04012.01
5.4.340.0090.03512.01
5.4.320.0070.03712.50
5.4.310.0060.03812.49
5.4.300.0060.03812.50
5.4.290.0080.03712.49
5.4.280.0050.04212.39
5.4.270.0070.03912.39
5.4.260.0030.04012.39
5.4.250.0060.04112.39
5.4.240.0090.04012.39
5.4.230.0080.03712.38
5.4.220.0050.03912.38
5.4.210.0080.04112.38
5.4.200.0100.03812.38
5.4.190.0050.03912.38
5.4.180.0060.03912.38
5.4.170.0070.03912.39
5.4.160.0050.04412.38
5.4.150.0080.03712.38
5.4.140.0080.03912.07
5.4.130.0050.03912.05
5.4.120.0060.03812.02
5.4.110.0060.03712.01
5.4.100.0030.03812.01
5.4.90.0070.03512.01
5.4.80.0060.03912.01
5.4.70.0050.03412.01
5.4.60.0030.03712.01
5.4.50.0030.03712.01
5.4.40.0050.04511.99
5.4.30.0080.03311.99
5.4.20.0040.03811.98
5.4.10.0070.03511.99
5.4.00.0050.03611.48
5.3.290.0060.04112.80
5.3.280.0080.03712.71
5.3.270.0060.04212.72
5.3.260.0080.04112.71
5.3.250.0060.03712.72
5.3.240.0070.04912.72
5.3.230.0070.04212.71
5.3.220.0050.03812.68
5.3.210.0050.04112.68
5.3.200.0100.03312.68
5.3.190.0030.04012.68
5.3.180.0080.04212.67
5.3.170.0060.03912.67
5.3.160.0070.04212.67
5.3.150.0050.03812.68
5.3.140.0080.03712.66
5.3.130.0070.03912.66
5.3.120.0060.03912.66
5.3.110.0080.03812.66
5.3.100.0070.03612.12
5.3.90.0100.03812.09
5.3.80.0110.04212.07
5.3.70.0050.04012.07
5.3.60.0090.03812.06
5.3.50.0060.04412.00
5.3.40.0070.04312.00
5.3.30.0080.03511.95
5.3.20.0050.04611.73
5.3.10.0050.03411.70
5.3.00.0070.03511.68
5.2.170.0040.0389.18
5.2.160.0020.0369.18
5.2.150.0040.0339.18
5.2.140.0040.0329.17
5.2.130.0020.0319.14
5.2.120.0040.0309.14
5.2.110.0040.0379.14
5.2.100.0050.0279.14
5.2.90.0050.0319.14
5.2.80.0020.0329.14
5.2.70.0070.0329.14
5.2.60.0060.0299.09
5.2.50.0020.0339.06
5.2.40.0070.0269.03
5.2.30.0050.0319.02
5.2.20.0030.0369.00
5.2.10.0030.0358.93
5.2.00.0050.0318.78
5.1.60.0050.0308.07
5.1.50.0040.0288.07
5.1.40.0060.0308.05
5.1.30.0040.0268.40
5.1.20.0040.0278.41
5.1.10.0050.0258.14
5.1.00.0040.0298.14
5.0.50.0080.0196.63
5.0.40.0050.0186.48
5.0.30.0060.0286.29
5.0.20.0020.0216.26
5.0.10.0010.0236.24
5.0.00.0090.0356.23
4.4.90.0050.0174.78
4.4.80.0060.0174.76
4.4.70.0050.0144.75
4.4.60.0020.0164.75
4.4.50.0030.0234.77
4.4.40.0010.0284.71
4.4.30.0040.0144.76
4.4.20.0010.0174.85
4.4.10.0010.0184.85
4.4.00.0060.0324.76
4.3.110.0050.0194.67
4.3.100.0020.0184.67
4.3.90.0020.0164.63
4.3.80.0030.0264.59
4.3.70.0040.0144.63
4.3.60.0000.0184.62
4.3.50.0040.0134.62
4.3.40.0010.0254.54
4.3.30.0020.0163.29
4.3.20.0010.0173.27
4.3.10.0030.0153.22
4.3.00.0000.0239.89

preferences:
148.91 ms | 1398 KiB | 7 Q