3v4l.org

run code in 300+ PHP versions simultaneously
<?php   $pattern = '/(?:(?:\+?1\s*(?:[.-]\s*)?)?(?:\(\s*([2-9]1[02-9]|[2-9][02-8]1|[2-9][02-8][02-9])\s*\)|([2-9]1[02-9]|[2-9][02-8]1|[2-9][02-8][02-9]))\s*(?:[.-]\s*)?)?([2-9]1[02-9]|[2-9][02-9]1|[2-9][02-9]{2})\s*(?:[.-]\s*)?([0-9]{4})(?:\s*(?:#|x\.?|ext\.?|extension)\s*(\d+))?$/'; preg_match($pattern, 'foo');

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)
5.4.320.0040.03812.49
5.4.310.0050.03812.49
5.4.300.0040.03912.50
5.4.290.0070.04212.49
5.4.280.0070.03512.39
5.4.270.0070.03712.39
5.4.260.0070.03812.39
5.4.250.0050.03812.39
5.4.240.0040.03712.39
5.4.230.0070.03612.38
5.4.220.0050.03612.38
5.4.210.0100.03712.38
5.4.200.0050.04112.38
5.4.190.0040.04112.38
5.4.180.0090.03612.38
5.4.170.0050.03812.38
5.4.160.0070.04212.38
5.4.150.0050.04012.38
5.4.140.0070.03612.07
5.4.130.0040.03712.05
5.4.120.0040.03512.02
5.4.110.0070.03812.01
5.4.100.0040.03612.01
5.4.90.0090.03512.01
5.4.80.0060.04012.01
5.4.70.0050.03712.01
5.4.60.0040.03712.01
5.4.50.0080.03512.01
5.4.40.0050.03612.00
5.4.30.0070.03511.99
5.4.20.0050.03511.99
5.4.10.0030.03811.99
5.4.00.0080.03811.48
5.3.290.0080.03912.80
5.3.280.0070.03912.71
5.3.270.0060.03912.72
5.3.260.0040.04212.72
5.3.250.0090.03712.72
5.3.240.0090.03512.72
5.3.230.0070.03912.71
5.3.220.0100.03412.68
5.3.210.0050.04312.68
5.3.200.0040.03812.68
5.3.190.0040.03812.67
5.3.180.0070.04112.67
5.3.170.0070.03612.66
5.3.160.0060.04012.67
5.3.150.0080.03712.67
5.3.140.0070.03612.66
5.3.130.0090.04112.66
5.3.120.0070.03912.66
5.3.110.0040.04312.66
5.3.100.0070.03912.12
5.3.90.0050.03812.08
5.3.80.0070.03812.08
5.3.70.0050.03812.08
5.3.60.0070.04012.06
5.3.50.0060.03512.00
5.3.40.0070.03612.00
5.3.30.0090.03411.95
5.3.20.0060.04111.73
5.3.10.0070.03311.70
5.3.00.0080.03611.68
5.2.170.0050.0309.18
5.2.160.0060.0319.18
5.2.150.0040.0319.18
5.2.140.0030.0329.18
5.2.130.0030.0309.14
5.2.120.0050.0279.14
5.2.110.0040.0319.14
5.2.100.0050.0279.14
5.2.90.0060.0279.14
5.2.80.0050.0309.14
5.2.70.0050.0309.14
5.2.60.0090.0299.09
5.2.50.0040.0309.06
5.2.40.0050.0329.03
5.2.30.0040.0299.02
5.2.20.0040.0299.00
5.2.10.0050.0298.93
5.2.00.0040.0308.78
5.1.60.0050.0268.07
5.1.50.0050.0238.06
5.1.40.0040.0258.04
5.1.30.0070.0278.40
5.1.20.0070.0268.42
5.1.10.0050.0258.14
5.1.00.0050.0258.14
5.0.50.0020.0216.62
5.0.40.0040.0196.48
5.0.30.0040.0346.29
5.0.20.0030.0196.26
5.0.10.0060.0206.24
5.0.00.0050.0336.23
4.4.90.0040.0164.78
4.4.80.0030.0144.76
4.4.70.0020.0174.76
4.4.60.0040.0144.76
4.4.50.0030.0154.77
4.4.40.0040.0254.71
4.4.30.0030.0164.76
4.4.20.0040.0144.84
4.4.10.0030.0164.85
4.4.00.0020.0254.76
4.3.110.0040.0164.67
4.3.100.0030.0164.67
4.3.90.0020.0154.63
4.3.80.0040.0234.58
4.3.70.0030.0144.63
4.3.60.0040.0144.63
4.3.50.0040.0144.63
4.3.40.0030.0244.54
4.3.30.0040.0153.28
4.3.20.0020.0163.26
4.3.10.0010.0163.22
4.3.00.0000.0237.35

preferences:
140.01 ms | 1394 KiB | 7 Q