3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo($srting) {  $string = str_replace(' ', '', $string); // Remove all empty spaces   } echo "wat";

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)
5.4.310.0050.04412.52
5.4.300.0080.03612.52
5.4.290.0110.03512.51
5.4.280.0050.04412.41
5.4.270.0050.04112.41
5.4.260.0070.04012.41
5.4.250.0090.03912.41
5.4.240.0060.04212.41
5.4.230.0080.03712.40
5.4.220.0090.04012.40
5.4.210.0100.03612.40
5.4.200.0080.04612.40
5.4.190.0090.03312.39
5.4.180.0060.03912.40
5.4.170.0050.03812.41
5.4.160.0070.03612.40
5.4.150.0060.03612.39
5.4.140.0060.03712.09
5.4.130.0060.03612.07
5.4.120.0050.03912.04
5.4.110.0050.03712.03
5.4.100.0060.04712.03
5.4.90.0060.03912.03
5.4.80.0100.04312.03
5.4.70.0070.03912.03
5.4.60.0060.03412.02
5.4.50.0100.03012.02
5.4.40.0090.04612.02
5.4.30.0080.04212.02
5.4.20.0100.03512.00
5.4.10.0050.04012.01
5.4.00.0050.03811.50
5.3.280.0050.03812.71
5.3.270.0060.04012.73
5.3.260.0060.03912.72
5.3.250.0060.03712.72
5.3.240.0070.04312.71
5.3.230.0050.03912.71
5.3.220.0060.03712.68
5.3.210.0070.03812.68
5.3.200.0070.03512.68
5.3.190.0080.03512.68
5.3.180.0060.03712.68
5.3.170.0070.03712.67
5.3.160.0080.04912.68
5.3.150.0030.04512.68
5.3.140.0090.04212.66
5.3.130.0080.04112.66
5.3.120.0080.03712.65
5.3.110.0080.03712.66
5.3.100.0060.03812.13
5.3.90.0100.03312.11
5.3.80.0070.03512.09
5.3.70.0070.03612.09
5.3.60.0040.03912.09
5.3.50.0040.03812.02
5.3.40.0080.03412.02
5.3.30.0070.03511.98
5.3.20.0070.03911.76
5.3.10.0030.03711.73
5.3.00.0070.03511.72
5.2.170.0020.0339.22
5.2.160.0080.0279.22
5.2.150.0070.0299.21
5.2.140.0030.0329.21
5.2.130.0120.0369.18
5.2.120.0060.0319.17
5.2.110.0030.0329.18
5.2.100.0080.0269.18
5.2.90.0050.0369.17
5.2.80.0050.0359.18
5.2.70.0050.0349.17
5.2.60.0060.0299.13
5.2.50.0060.0299.09
5.2.40.0060.0279.08
5.2.30.0070.0289.05
5.2.20.0040.0299.04
5.2.10.0050.0288.95
5.2.00.0060.0278.81
5.1.60.0020.0288.09
5.1.50.0040.0348.08
5.1.40.0040.0288.07
5.1.30.0050.0288.42
5.1.20.0060.0258.44
5.1.10.0070.0338.16
5.1.00.0030.0288.16
5.0.50.0100.0226.64
5.0.40.0020.0266.49
5.0.30.0050.0386.31
5.0.20.0030.0276.29
5.0.10.0070.0186.25
5.0.00.0030.0396.25
4.4.90.0050.0134.78
4.4.80.0040.0144.75
4.4.70.0030.0154.76
4.4.60.0020.0164.75
4.4.50.0030.0144.77
4.4.40.0040.0234.71
4.4.30.0050.0224.76
4.4.20.0070.0114.84
4.4.10.0030.0164.85
4.4.00.0020.0294.76
4.3.110.0030.0174.66
4.3.100.0020.0174.67
4.3.90.0030.0194.64
4.3.80.0040.0234.58
4.3.70.0030.0144.63
4.3.60.0060.0224.63
4.3.50.0020.0164.63
4.3.40.0030.0274.54
4.3.30.0020.0163.30
4.3.20.0040.0143.27
4.3.10.0040.0143.24
4.3.00.0030.01715.90

preferences:
139.93 ms | 1394 KiB | 7 Q