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Online Sandbox for SQL and PHP: Write, Run, Test, and Share SQL Queries and PHP Code

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<?php $s = [[1, 2, 3, 4, 4], [1, 2, 3], [3, 5, 6, 7]]; $arr = array_map("unserialize", array_unique(array_map("serialize", $s))); print_r($arr); ?>
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