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run code in 150+ php & hhvm versions
Bugs & Features
<?php $tags = "test bla thingy uh wadsa"; $tags = preg_replace('/[\ ]*/', ',', $tags); echo $tags;
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
,t,e,s,t,,b,l,a,,t,h,i,n,g,y,,u,h,,w,a,d,s,a,
Output for hhvm-3.10.0

Process exited with code 153.