3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a=1; $b=++a; echo printf("%d",$a+$b);

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)
5.4.310.0070.03912.50
5.4.300.0070.04312.49
5.4.290.0060.04312.49
5.4.280.0070.03512.39
5.4.270.0070.03912.39
5.4.260.0050.04312.39
5.4.250.0060.04312.39
5.4.240.0020.04312.39
5.4.230.0080.04712.38
5.4.220.0070.03812.38
5.4.210.0100.04212.38
5.4.200.0070.04212.38
5.4.190.0110.03412.38
5.4.180.0050.04012.38
5.4.170.0050.03712.38
5.4.160.0070.03412.38
5.4.150.0060.03612.38
5.4.140.0080.04312.07
5.4.130.0090.03212.05
5.4.120.0040.03712.01
5.4.110.0060.03512.01
5.4.100.0060.03812.01
5.4.90.0050.04212.01
5.4.80.0040.04112.01
5.4.70.0050.03512.01
5.4.60.0040.03712.00
5.4.50.0060.03612.01
5.4.40.0060.03312.00
5.4.30.0040.04311.99
5.4.20.0070.03811.98
5.4.10.0080.03712.00
5.4.00.0060.03911.48
5.3.290.0080.03812.80
5.3.280.0070.04312.71
5.3.270.0080.04412.72
5.3.260.0070.04012.72
5.3.250.0080.04012.72
5.3.240.0040.04612.72
5.3.230.0070.04512.71
5.3.220.0070.04612.68
5.3.210.0080.04012.68
5.3.200.0090.03712.68
5.3.190.0040.04512.68
5.3.180.0060.03812.68
5.3.170.0060.03512.67
5.3.160.0060.04212.67
5.3.150.0070.04112.67
5.3.140.0080.04212.66
5.3.130.0090.04112.66
5.3.120.0070.03912.65
5.3.110.0060.04712.66
5.3.100.0080.03912.12
5.3.90.0080.04312.09
5.3.80.0090.04212.07
5.3.70.0080.03912.07
5.3.60.0050.04612.06
5.3.50.0030.04312.00
5.3.40.0060.04012.00
5.3.30.0050.03511.95
5.3.20.0080.03511.73
5.3.10.0060.04611.70
5.3.00.0030.03811.68
5.2.170.0050.0319.18
5.2.160.0030.0409.19
5.2.150.0090.0399.18
5.2.140.0060.0369.18
5.2.130.0070.0349.14
5.2.120.0090.0339.14
5.2.110.0050.0359.14
5.2.100.0040.0419.15
5.2.90.0070.0299.14
5.2.80.0030.0319.14
5.2.70.0040.0329.14
5.2.60.0000.0429.09
5.2.50.0060.0379.06
5.2.40.0050.0299.04
5.2.30.0050.0379.01
5.2.20.0060.0319.00
5.2.10.0030.0308.93
5.2.00.0080.0278.78
5.1.60.0040.0318.07
5.1.50.0040.0298.06
5.1.40.0080.0258.05
5.1.30.0050.0298.40
5.1.20.0040.0318.42
5.1.10.0060.0338.14
5.1.00.0060.0298.14
5.0.50.0020.0276.62
5.0.40.0030.0216.48
5.0.30.0050.0336.29
5.0.20.0050.0186.26
5.0.10.0060.0236.24
5.0.00.0040.0376.23
4.4.90.0030.0164.78
4.4.80.0030.0244.76
4.4.70.0040.0194.76
4.4.60.0030.0204.75
4.4.50.0070.0184.77
4.4.40.0050.0244.71
4.4.30.0030.0234.75
4.4.20.0060.0124.85
4.4.10.0030.0204.85
4.4.00.0030.0264.76
4.3.110.0060.0204.67
4.3.100.0030.0154.67
4.3.90.0000.0174.63
4.3.80.0030.0324.59
4.3.70.0020.0214.63
4.3.60.0030.0184.63
4.3.50.0030.0184.63
4.3.40.0020.0254.54
4.3.30.0060.0193.28
4.3.20.0030.0203.27
4.3.10.0010.0203.21
4.3.00.0130.02310.99

preferences:
139.65 ms | 1394 KiB | 7 Q