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run code in 300+ PHP versions simultaneously
<?php $a = array ( 0 => array ( 'php' => 5.3, ), 1 => array ( 'php' => 5.3, ), 2 => array ( 'php' => 5.3, ), ); foreach ($a as $k => $v) { foreach ($a as $k2 => $v2) { if ($v == $v2) { echo "EQUAL"; } } }
Output for git.master, git.master_jit, rfc.property-hooks
EQUALEQUALEQUALEQUALEQUALEQUALEQUALEQUALEQUAL

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