Products ordering

$_product->getCollection()->addAttributeToSort('position')

Magento Product Collection By category id

<?php
$categoryid=2;
                               
                                $collection = Mage::getModel('catalog/category')->load($categoryid)
                                ->getProductCollection()
                                ->addAttributeToSelect('*') // add all attributes - optional
                                ->addAttributeToFilter('status', 1) // enabled
                                ->addAttributeToFilter('visibility', 4) //visibility in catalog,search
                                ->addAttributeToFilter('featured', 1)
                                ->setOrder('position', 'ASC')
                                ->setPageSize(6)
                                ->setCurPage(1);
                         foreach($collection as $_product){
   $productID=$_product->getId();
   $_product = Mage::getModel('catalog/product')->load($productID);
                                    echo $_product->getName();
}
?>

Round number function

ceil(32.65)

would return 33

text wordwrap demo

<?php

    $val="rem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.";

    $str=wordwrap($val,30,"<br>");

                                                

    echo substr($str,0,strpos($str,"<br>"))."..." ; 

?>

Magento database feache code

<?php
     $write = Mage::getSingleton('core/resource')->getConnection('core_write');

         $row = $write->fetchRow('SELECT * FROM colings_eav_attribute_option_value WHERE value="'.$lens_col.'"'); ?>

Attribute option value table name

eav_attribute_option_value