<?php $array = array(); $array['references1'] = 'Foo1 ◻◻◻◻◻◻◻◻◻◻◻◻'; $array['references2'] = 'Foo2 ◻◻◻◻◻◻◻◻◻◻◻◻'; var_export( preg_replace('/[^!-~\s]+/', '', $array) );
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