3v4l.org

run code in 300+ PHP versions simultaneously
<?php $count=0; echo(str_replace(' ', '', 'a b c ', $count)); echo(str_replace(' ', '', 'a b c ', $count++)); echo($count);

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)
8.3.60.0140.00716.61
8.3.50.0090.00921.89
8.3.40.0110.01118.71
8.3.30.0090.00919.11
8.3.20.0040.00420.31
8.3.10.0050.00323.54
8.3.00.0050.00220.64
8.2.180.0090.00616.75
8.2.170.0170.00322.96
8.2.160.0030.01022.25
8.2.150.0150.00024.18
8.2.140.0030.00524.66
8.2.130.0040.00426.16
8.2.120.0040.00422.25
8.2.110.0070.00322.18
8.2.100.0030.00618.73
8.1.280.0080.00625.92
8.1.270.0040.00423.88
8.1.260.0000.00826.35
8.1.250.0000.00828.09
8.1.240.0050.00518.70
8.1.230.0060.00318.42
5.4.170.0100.03712.34
5.4.160.0090.04312.33
5.4.150.0080.04012.33
5.4.140.0100.03812.01
5.4.130.0100.03812.00
5.4.120.0120.03411.96
5.4.110.0110.03511.96
5.4.100.0090.03811.95
5.4.90.0080.03911.95
5.4.80.0110.04611.95
5.4.70.0090.03611.95
5.4.60.0100.03611.95
5.4.50.0060.04011.95
5.4.40.0090.03811.94
5.4.30.0110.03711.93
5.4.20.0070.04111.93
5.4.10.0110.03511.93
5.4.00.0080.03811.43
5.3.270.0070.04412.72
5.3.260.0110.04012.72
5.3.250.0180.05112.72
5.3.240.0110.03912.72
5.3.230.0110.03912.71
5.3.220.0120.03712.68
5.3.210.0090.04112.68
5.3.200.0100.03912.68
5.3.190.0100.03912.68
5.3.180.0110.03912.67
5.3.170.0100.03712.67
5.3.160.0130.04612.67
5.3.150.0090.04212.67
5.3.140.0120.03812.66
5.3.130.0110.04112.66
5.3.120.0100.04012.66
5.3.110.0100.04012.66
5.3.100.0090.04112.12
5.3.90.0090.03912.09
5.3.80.0130.04612.07
5.3.70.0080.04112.07
5.3.60.0100.03812.06
5.3.50.0080.04212.00
5.3.40.0090.04012.00
5.3.30.0090.03711.94
5.3.20.0100.03711.71
5.3.10.0100.03611.67
5.3.00.0070.04011.66
5.2.170.0070.0329.17
5.2.160.0060.0329.17
5.2.150.0080.0329.16
5.2.140.0090.0409.16
5.2.130.0080.0309.12
5.2.120.0080.0319.12
5.2.110.0090.0329.13
5.2.100.0070.0309.13
5.2.90.0070.0319.12
5.2.80.0060.0339.12
5.2.70.0070.0319.12
5.2.60.0070.0319.07
5.2.50.0080.0309.04
5.2.40.0080.0319.01
5.2.30.0080.0308.99
5.2.20.0080.0318.98
5.2.10.0070.0328.90
5.2.00.0080.0318.77
5.1.60.0060.0258.05
5.1.50.0070.0288.05
5.1.40.0050.0268.04
5.1.30.0100.0438.38
5.1.20.0080.0268.41
5.1.10.0060.0318.13
5.1.00.0050.0328.13
5.0.50.0070.0236.61
5.0.40.0060.0206.47
5.0.30.0060.0356.28
5.0.20.0070.0196.25
5.0.10.0070.0196.23
5.0.00.0050.0336.22
4.4.90.0050.0164.78
4.4.80.0040.0164.75
4.4.70.0050.0164.75
4.4.60.0040.0174.75
4.4.50.0040.0164.77
4.4.40.0030.0274.71
4.4.30.0030.0174.76
4.4.20.0030.0174.84
4.4.10.0040.0184.85
4.4.00.0050.0274.76
4.3.110.0040.0184.67
4.3.100.0040.0174.67
4.3.90.0050.0164.63
4.3.80.0030.0264.59
4.3.70.0130.0284.63
4.3.60.0030.0164.63
4.3.50.0050.0154.63
4.3.40.0020.0274.54
4.3.30.0020.0173.29
4.3.20.0020.0173.27
4.3.10.0040.0153.23
4.3.00.0130.01315.48

preferences:
36.7 ms | 401 KiB | 5 Q