3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $mlbCities = array( 'Carolina', 'Atlanta', 'New Orleans', 'Philadelphia', 'St. Louis', 'Washington', 'Houston', 'Tennessee', 'New England', 'NY Jets', 'Cincinnati', 'Green Bay', 'Arizona', 'Jacksonville', 'Oakland', 'Kansas City', 'Minnesota', 'Detroit', 'Tampa Bay', 'Buffalo', 'Seattle', 'San Francisco', 'Pittsburgh', 'Chicago', 'Baltimore', 'San Diego', 'Cleveland', 'Denver', 'NY Giants', 'Dallas', 'Indianapolis', 'Miami' ); $string = 'San Francisco Giants'; $fl_array = preg_grep(/$string/, $mlbCities); var_dump($fl_array); ?>
Output for 5.3.0 - 5.4.30
Parse error: syntax error, unexpected '/', expecting ')' in /in/MH4bK on line 39
Process exited with code 255.