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Online Sandbox for SQL and PHP: Write, Run, Test, and Share SQL Queries and PHP Code
<?php
$array = array(
array("a" => "green", "b" => "yellow"),
array("a" => "blue", "b" => "purple"),
array("a" => "green", "b" => "yellow"),
);
$uniqueArray = array_map("unserialize",
array_unique(array_map("serialize", $array)));
print_r($uniqueArray);
?>