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run code in 200+ php & hhvm versions
Bugs & Features
<?php echo "lorem Ipsum dolor sit Amet"; $array1=array("abc","def"); $array2=array("ghi","jkl"); $a1=array("red","green"); $a2=array("blue","yellow"); print_r(array_merge($a1,$a2)); print_r(array_merge($array1,$array2)); ?>
Output for 5.6.0 - 5.6.30, 7.0.0 - 7.3.0rc3
lorem Ipsum dolor sit AmetArray ( [0] => red [1] => green [2] => blue [3] => yellow ) Array ( [0] => abc [1] => def [2] => ghi [3] => jkl )
Output for hhvm-3.15.4

Process exited with code 137.