Get highest en lowest value from attribute

Question

On the category page I have an attribute showing values, that attribute can have multiple values and will show all the values separated by commas. Is there a way to get the highest value from the attribute and also the lowest?

What is have to display the values:

<?php if ($_product->getResource()->getAttribute('scherm_breedte')->getFrontend()->getValue($_product)): ?>
    <strong>Breedte</strong>: <?php echo $_product->getResource()->getAttribute('scherm_breedte')->getFrontend()->getValue($_product); ?>
<?php endif; ?>

Answer 1

Basically its not a Magento question rather a PHP question.

Try like this

$attribtesData = $_product->getResource()->getAttribute('scherm_breedte')->getFrontend()->getValue($_product);
    $attributeDataArray = explode(",",$attribtesData);

    echo 'Max attribute Value = '.max($attributeDataArray);
    echo 'Min attribute Value = '.min($attributeDataArray);

Hope this helps you.