在将变量与字符串进行比较时创建异常？

Question

下面的php代码摘录在我们的Magento网站上触发了精选制造商的"Call for Price“。那么，如何从这些供应商中“排除”选定的产品呢？例如，在我们的制造商"XMarks“中有10种产品，我不想显示"Call For Price”，而是显示销售价格、价目表价格和添加到购物车按钮。我该怎么做呢？我完全是个初学者。谢谢!

<p class="special-price">
<span class="price-label"><?php echo $this->__('Special Price:') ?></span>
<span class="price" id="product-price-<?php echo $_id ?><?php echo $this->getIdSuffix() ?>">
<?php if($manufacturerName == 'XMarks' || $manufacturerName == 'Maxtor' || $manufacturerName == 'Trixfx' || $manufacturerName == "Oouph" || $manufacturerName == "Groffer" || $manufacturerName == "Wofstern"){ ?>
<span class="olyprice">Call for Price</span><?php }

Answer 1

<p class="special-price">
<span class="price-label"><?php echo $this->__('Special Price:') ?></span>
<span class="price" id="product-price-<?php echo $_id ?><?php echo $this->getIdSuffix() ?>">
<?php 
function callPrice(){ echo '<span class="olyprice">Call for Price</span>';}

switch ($manufacturerName){
       case: 'XMarks'
        if(product != prduct)
        {
           callPrice();
        }
        break;
       case: 'Maxtor'
        if(product != prduct)
        {
          callPrice();
        }
        break;
    ...