3v4l.org

run code in 150+ php & hhvm versions
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<?php $a = array( 1=>" vahid ", 2=>" arash ", 3=>" farzam " ); foreach($a as $b){ foreach($a as $c){ echo $c; } }
Output for 4.3.0 - 7.1.0
vahid arash farzam vahid arash farzam vahid arash farzam