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run code in 150+ php & hhvm versions
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<?php $a = array( 1 => 'foo', 2 => 'bar' ); $b = array( 2 => 'bar', 1 => 'foo' ); var_dump($a == $b); var_dump($a === $b);
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
bool(true) bool(false)
Output for hhvm-3.10.0

Process exited with code 153.