3v4l.org

run code in 300+ PHP versions simultaneously
<?php $html_string = '<!DOCTYPE html> <html> <body> <div id="foo"> This is a paragraph with <strong>Some nested tags</strong> </div> <div class="test" id="bar"> <div> And a nested div? </div> </div> <div class="baz test"> <p> Pretty normal HTML. </p> </div> </body> </html>'; $regex = '/<div[^>]*?(class="(.+?)"[^>]*)?>((?:.*?(?:(?!<div)|(?R))*)*)' . '<\/div>/sm'; if (preg_match_all($regex, $html_string, $matches))) { var_dump($matches); }

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)
5.4.310.0060.04612.50
5.4.300.0090.04112.50
5.4.290.0050.04412.50
5.4.280.0030.03812.39
5.4.270.0050.03612.39
5.4.260.0080.04212.39
5.4.250.0080.03412.39
5.4.240.0110.03612.39
5.4.230.0060.04012.38
5.4.220.0060.03612.38
5.4.210.0090.03812.38
5.4.200.0110.03212.38
5.4.190.0100.03812.38
5.4.180.0080.03412.38
5.4.170.0040.03712.38
5.4.160.0070.04312.38
5.4.150.0100.03812.38
5.4.140.0040.04412.07
5.4.130.0080.03612.05
5.4.120.0050.03512.02
5.4.110.0030.03812.01
5.4.100.0070.03412.01
5.4.90.0050.04612.01
5.4.80.0080.05212.01
5.4.70.0070.04912.01
5.4.60.0060.03412.00
5.4.50.0050.03612.01
5.4.40.0080.03212.00
5.4.30.0070.03411.99
5.4.20.0050.04411.99
5.4.10.0070.03211.99
5.4.00.0070.03511.48
5.3.280.0070.03612.71
5.3.270.0070.03712.73
5.3.260.0080.04112.72
5.3.250.0070.04412.72
5.3.240.0090.03912.72
5.3.230.0110.04512.71
5.3.220.0070.04812.68
5.3.210.0060.03912.68
5.3.200.0040.04512.68
5.3.190.0070.03612.68
5.3.180.0040.03812.67
5.3.170.0070.04012.67
5.3.160.0110.03412.67
5.3.150.0070.03512.68
5.3.140.0030.03912.66
5.3.130.0060.04312.66
5.3.120.0060.05112.66
5.3.110.0060.03812.66
5.3.100.0060.04312.12
5.3.90.0080.03812.08
5.3.80.0080.04512.07
5.3.70.0070.04112.07
5.3.60.0070.03912.07
5.3.50.0080.03412.00
5.3.40.0050.03712.00
5.3.30.0080.03211.95
5.3.20.0060.03611.73
5.3.10.0070.03411.70
5.3.00.0070.03811.68

preferences:
135.21 ms | 1394 KiB | 7 Q