<?php
$bikini_size        = array();
$m_flip_flops_size  = array();
$m_shorts_size      = array();
$m_tshirt_size      = array();
$w_flip_flops_size  = array();
$w_shorts_size      = array();

if($_product->isConfigurable()){
    $allProducts = $_product->getTypeInstance(true)->getUsedProducts(null, $_product);
    foreach ($allProducts as $subproduct) {
        if ($subproduct->isSaleable() && floor($subproduct->getStockItem()->getQty()) > 0 ) {
            $bikini_size[]          = trim( $subproduct->getAttributeText('bikini_size') );
            $m_flip_flops_size[]    = trim( $subproduct->getAttributeText('m_flip_flops_size') );
            $m_shorts_size[]        = trim( $subproduct->getAttributeText('m_shorts_size') );
            $m_tshirt_size[]        = trim( $subproduct->getAttributeText('m_tshirt_size') );
            $w_flip_flops_size[]    = trim( $subproduct->getAttributeText('w_flip_flops_size') );
            $w_shorts_size[]        = trim( $subproduct->getAttributeText('w_shorts_size') );
        }
    }

    $bikini_size        = array_filter( $bikini_size );
    $m_flip_flops_size  = array_filter( $m_flip_flops_size );
    $m_shorts_size      = array_filter( $m_shorts_size );
    $m_tshirt_size      = array_filter( $m_tshirt_size );
    $w_flip_flops_size  = array_filter( $w_flip_flops_size );
    $w_shorts_size      = array_filter( $w_shorts_size );

    if(count($bikini_size)>0) {
        sort($bikini_size);
        ?>
        <div class="desc std bikini_size">
        Sizes: <? echo implode(", ", $bikini_size); ?>
        </div>
        <?
    }
    if(count($m_flip_flops_size)>0) {
        sort($m_flip_flops_size);
        ?>
        <div class="desc std m_flip_flops_size">
        Sizes: <? echo implode(", ", $m_flip_flops_size); ?>
        </div>
        <?
    }
    if(count($m_shorts_size)>0) {
        sort($m_shorts_size);
        ?>
        <div class="desc std m_shorts_size">
        Sizes: <? echo implode(", ", $m_shorts_size); ?>
        </div>
        <?
    }
    if(count($m_tshirt_size)>0) {
        sort($m_tshirt_size);
        ?>
        <div class="desc std m_tshirt_size">
        Sizes: <? echo implode(", ", $m_tshirt_size); ?>
        </div>
        <?
    }
    if(count($w_flip_flops_size)>0) {
        sort($w_flip_flops_size);
        ?>
        <div class="desc std w_flip_flops_size">
        Sizes: <? echo implode(", ", $w_flip_flops_size); ?>
        </div>
        <?
    }
    if(count($w_shorts_size)>0) {
        sort($w_shorts_size);
        ?>
        <div class="desc std w_shorts_size">
        Sizes: <? echo implode(", ", $w_shorts_size); ?>
        </div>
        <?
    }
}
?>