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@ 2015-12-10T12:39:46Z

<?php
$requiredColumns = array(
            'category',
            'products_id',
            'brand',
            'supplier',
            'stock_min',
            'stock_max',
            'stock_target',
            'warehouse',
            'status'
        );
        
        $letters = range('A', 'Z');
        
foreach ($this->requiredColumns as $key => $cvalue) {
            $cell_name = $letters[$key] . "1";
            echo $cell_name;
}

Output
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range: documentation ( source)

preferences:dark modelive preview

43.1 ms | 402 KiB | 5 Q