3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo(str_replace(" ", "","'a'=['a'=['r'=['d'=['v'=['a'=['r'=['k/']]],'w'=['o'=['l'=['f/']]]]'o'=['n/']]],'b'=['a'=['c'=['k/','u' = [ 's/' ] ], 'f' = [ 't/' ], 'l' = [ 'o' = [ 'n' = [ 'e/' ] ] ], 'n' = [ 'd' = [ 'o' = [ 'n\' = [ 'e' = [ 'd/' ], 'm' = [ 'e' = [ 'n' = [ 't/' ] ] ], 's/' ] ] ] ], 's' = [ 'e/' = [ 'd/', 'm' = [ 'e' = [ 'n' = [ 't/' ] ] ] ], 'h/' = [ 'e' = [ 'd/' ] ] ] 't' = [ 'e/' = [ 'd/', 'm' = [ 'e' = [ 'n' = [ 't/' ] ] ], 's/', ], 't' = [ 'o' = [ 'i' = [ 'r/' = [ 's/' ] ] ] ] ] ], 'b' = [ 'e/' = [ 's' = [ 's/' ], 'y/' = [ 's/' ] ], 'o' = [ 't/' = [ 's/' ] ], 'r' = [ 'e' = [ 'v' = [ 'i' = [ 'a' = [ 't' = [ 'e/' = [ 'd/', 's/' ], 'i' = [ 'n' = [ 'g/' ], 'o' = [ 'n/' = [ 's/' ] ] ] ] ] ] ] ] ] ], 'd' = [ 'i' = [ 'c' = [ 'a'= [ 't' = [ 'e/' = [ 'd/', 's/' ], 'i' = [ 'n' = [ 'g/' ], 'o' = [ 'n/' ] ] ] ] ] ], 'o' = [ 'm' = [ 'e' = [ 'n/' = [ 's/' ] ] 'i' = [ 'n' = [ 'a' = [ 'l/' ] ] ] ] ], 'u' = [ 'c' = [ 't/' = [ 'e' = [ 'd/' ], 'i' = [ 'n' = [ 'g/' ], 'o' = [ 'n/' = [ 's/' ] ] ], 'o' = [ 'r/' = [ 's/' ] ], 's/' ] ] ] ] 'e/' = [ 'a' = [ 'm/' ], 'l/' = [ 'e/' ], 'r' = [ 'd' = [ 'e' = [ 'e' = [ 'n/' ] ] ], 'r'= [ 'a' = [ 'n' = [ 't/' ], 't' = [ 'i' = [ 'o' = [ 'n/' = [ 's/' ] ] ] ] ] ] ], 't/' = [ 's/', 't' = [ 'e' = [ 'd/' ], 'i' = [ 'n' = [ 'g/' ] ] ] ], 'y' = [ 'a' = [ 'n' = [ 'c' = [ 'e/' ] ] ] ] ], 'h' = [ 'o' = [ 'r/' = [ 'r' = [ 'e' = [ 'd/', 'n' = [ 'c' = [ 'e/' ], 't/' ] ] ], 's/' ] ] ], 'i' = [ 'd' = [ 'e/' = [ 'd/', 's/' ], 'i' = [ 'n' = [ 'g/' ] ], 'j' = [ 'a' = [ 'n/' ] ] ], 'e' = [ 's/' ], 'l' = [ 'i' = [ 't' = [ 'i' = [ 'e' = [ 's/' ] ], 'y/' ] ] ] ], 'j' = [ 'e' = [ 'c' = [ 't/' = [ 'l' = [ 'y/' ] ] ] ], 'u' = [ 'r' = [ 'e/' = [ 'd/' ] ] ] ], 'l' = [ 'a' = [ 't' = [ 'e/' = [ 's/' ], 'i' = [ 'n' = [ 'g/' ], 'o' = [ 'n/' ], 'v' = [ 'e/' ] ] ] 'z' = [ 'e/' ] ], 'e/' = [ 'b' = [ 'o' = [ 'd' = [ 'i' = [ 'e' = [ 'd/' ] ] ] ] ], 'r/', 's' = [ 't/' ] ], 'o' = [ 'o' = [ 'm/' ] ], 'u' = [ 't' = [ 'i' = [ 'o' = [ 'n/' = [ 's/' ] ] ] ] ], 'y/' ], 'n' = [ 'e' = [ 'g' = [ 'a' = [ 't' = [ 'i' = [ 'o' = [ 'n/' ] ] ] ] ] ], 'o' = [ 'r' = [ 'm' = [ 'a' = [ 'l/ = [ 'i' = [ 't' = [ 'i' = [ 'e' = [ 's/' ] ], 'y/' ] ], 'l' = [ 'y/' ] ] ] ] ] ] ], 'o' = [ 'a' = [ 'r' = [ 'd/' ] ], 'd'= [ 'e/' = [ 's/' ] ], 'l' = [ 'i' = [ 's' = [ 'h/' = [ 'e' = [ 'd/', 's/' ], 'i' = [ 'n' = [ 'g/' ] ] ] ], 't' = [ 'i' = [ 'o' = [ 'n/' = [ 'i' = [ 's' = [ 't/' = [ 's/' ] ] ] ] ] ] ] ] ], 'm' = [ 'b/', 'i' = [ 'n' = [ 'a' = [ 'b' = [ 'l' = [ 'e/', 'y/' ] ], 't' = [ 'e/' = [ 'd/' ] 'i' = [ 'o' = [ 'n/' = [ 's/' ] ] ] ] ] ] ] ], 'r' = [ 'i' = [ 'g' = [ 'i' = [ 'n' = [ 'a' = [ 'l/' ], 'e' = [ 's/' ] ] ] ] ], 't/' = [ 'e' = [ 'd/' ], 'i' = [ 'n' = [ 'g/' ], 'o' = [ 'n/' = [ 'i' = [ 's' = [ 't/' = [ 's/' ] ] ], 's/' ] ], 'v' = [ 'e/' ] ], 's/' ] ], 'u' = [ 'n' = [ 'd/' = [ 'e' = [ 'd/' ], 'i' = [ 'n' = [ 'g/' ] ], 's/' ] ], 't/' ], 'v' = [ 'e'/ ] ], 'r' = [ 'a' = [ 'd'= [ 'e' = [ 'd/' ] ], 'h' = [ 'a' = [ 'm/' ] ], 's' = [ 'i' = [ 'o' = [ 'n/' = [ 's/' ] ], 'v' = [ 'e/' = [ 'l' = [ 'y/' ] 'n' = [ 'e' = [ 's' = [ 's/' ] ] ], 's/' ] ] ] ] ], 'e' = [ 'a' = [ 's' = [ 't/' ] ] ] 'i' = [ 'd' = [ 'g' = [ 'e/' = [ 'd/', 'm' = [ 'e' = [ 'n' = [ 't/' ] ] ] ], 'i' = [ 'n' = [ 'g/' ] ] ] ] ], 'o' = [ 'a' = [ 'd/' ], 'g' = [ 'a' = [ 't' = [ 'e/' = [ 'd/' ], 'i' = [ 'n' = [ 'g/' ], 'o' = [ 'n/' = [ 's/' ] ] ] ] ] ] ], 'u' = [ 'p' = [ 't/' = [ 'l' = [ 'y/' ], 'n' = [ 'e' = [ 's' = [ 's/' ] ] ] ] ] ] ],"));
based on POQel
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
'a'=['a'=['r'=['d'=['v'=['a'=['r'=['k/']]],'w'=['o'=['l'=['f/']]]]'o'=['n/']]],'b'=['a'=['c'=['k/','u'=['s/']],'f'=['t/'],'l'=['o'=['n'=['e/']]],'n'=['d'=['o'=['n\'=['e'=['d/'],'m'=['e'=['n'=['t/']]],'s/']]]],'s'=['e/'=['d/','m'=['e'=['n'=['t/']]]],'h/'=['e'=['d/']]]'t'=['e/'=['d/','m'=['e'=['n'=['t/']]],'s/',],'t'=['o'=['i'=['r/'=['s/']]]]]],'b'=['e/'=['s'=['s/'],'y/'=['s/']],'o'=['t/'=['s/']],'r'=['e'=['v'=['i'=['a'=['t'=['e/'=['d/','s/'],'i'=['n'=['g/'],'o'=['n/'=['s/']]]]]]]]]],'d'=['i'=['c'=['a'=['t'=['e/'=['d/','s/'],'i'=['n'=['g/'],'o'=['n/']]]]]],'o'=['m'=['e'=['n/'=['s/']]'i'=['n'=['a'=['l/']]]]],'u'=['c'=['t/'=['e'=['d/'],'i'=['n'=['g/'],'o'=['n/'=['s/']]],'o'=['r/'=['s/']],'s/']]]]'e/'=['a'=['m/'],'l/'=['e/'],'r'=['d'=['e'=['e'=['n/']]],'r'=['a'=['n'=['t/'],'t'=['i'=['o'=['n/'=['s/']]]]]]],'t/'=['s/','t'=['e'=['d/'],'i'=['n'=['g/']]]],'y'=['a'=['n'=['c'=['e/']]]]],'h'=['o'=['r/'=['r'=['e'=['d/','n'=['c'=['e/'],'t/']]],'s/']]],'i'=['d'=['e/'=['d/','s/'],'i'=['n'=['g/']],'j'=['a'=['n/']]],'e'=['s/'],'l'=['i'=['t'=['i'=['e'=['s/']],'y/']]]],'j'=['e'=['c'=['t/'=['l'=['y/']]]],'u'=['r'=['e/'=['d/']]]],'l'=['a'=['t'=['e/'=['s/'],'i'=['n'=['g/'],'o'=['n/'],'v'=['e/']]]'z'=['e/']],'e/'=['b'=['o'=['d'=['i'=['e'=['d/']]]]],'r/','s'=['t/']],'o'=['o'=['m/']],'u'=['t'=['i'=['o'=['n/'=['s/']]]]],'y/'],'n'=['e'=['g'=['a'=['t'=['i'=['o'=['n/']]]]]],'o'=['r'=['m'=['a'=['l/=['i'=['t'=['i'=['e'=['s/']],'y/']],'l'=['y/']]]]]]],'o'=['a'=['r'=['d/']],'d'=['e/'=['s/']],'l'=['i'=['s'=['h/'=['e'=['d/','s/'],'i'=['n'=['g/']]]],'t'=['i'=['o'=['n/'=['i'=['s'=['t/'=['s/']]]]]]]]],'m'=['b/','i'=['n'=['a'=['b'=['l'=['e/','y/']],'t'=['e/'=['d/']'i'=['o'=['n/'=['s/']]]]]]]],'r'=['i'=['g'=['i'=['n'=['a'=['l/'],'e'=['s/']]]]],'t/'=['e'=['d/'],'i'=['n'=['g/'],'o'=['n/'=['i'=['s'=['t/'=['s/']]],'s/']],'v'=['e/']],'s/']],'u'=['n'=['d/'=['e'=['d/'],'i'=['n'=['g/']],'s/']],'t/'],'v'=['e'/]],'r'=['a'=['d'=['e'=['d/']],'h'=['a'=['m/']],'s'=['i'=['o'=['n/'=['s/']],'v'=['e/'=['l'=['y/']'n'=['e'=['s'=['s/']]],'s/']]]]],'e'=['a'=['s'=['t/']]]'i'=['d'=['g'=['e/'=['d/','m'=['e'=['n'=['t/']]]],'i'=['n'=['g/']]]]],'o'=['a'=['d/'],'g'=['a'=['t'=['e/'=['d/'],'i'=['n'=['g/'],'o'=['n/'=['s/']]]]]]],'u'=['p'=['t/'=['l'=['y/'],'n'=['e'=['s'=['s/']]]]]]],
Output for hhvm-3.10.0

Process exited with code 153.