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<?php $array =Array ( '0' => 'apple', '1' => 'Pear', '2' => 'orange', '3' => 'mango', '4' => '[banana]', '5' => 'Cantaloupe', '6' => 'Peach', ); $value_w_bracket = key(preg_grep('/\[\w+\]/i', $array)); $intermediate[0] = $array[$value_w_bracket]; unset($array[$value_w_bracket]); natcasesort($array); $final = array_merge($intermediate,$array); print_r($final); ?>

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