Цена договорная - Общие вопросы и ошибки

<?php
 if ($this->product->getPriceCalculate() == 0) {
    echo ' договорная.';
 }else{
    print formatprice($this->product->getPriceCalculate());
 }?>

echo $this->product->getPriceCalculate() == 0 ? ' договорная.' : formatprice($this->product->getPriceCalculate());

<?php if ($product->_display_price){?>
	            <div class = "jshop_price">
	                <?php if ($this->config->product_list_show_price_description) print _JSHOP_PRICE.": ";?>
	                <?php if ($product->show_price_from) print _JSHOP_FROM." ";?>
	                <span><?php print formatprice($product->product_price);?><?php print $product->_tmp_var_price_ext;?></span>
	            </div>
	        <?php }?>

<?php
 if ($this->product->getPriceCalculate() == 0) {
    echo ' договорная.';
 }else{
    print formatprice($this->product->getPriceCalculate());
 }?>

<?php if ($product->_display_price){?>
            <div class = "jshop_price">
                <?php if ($this->config->product_list_show_price_description) print _JSHOP_PRICE.": ";?>
                <?php if ($product->show_price_from) print _JSHOP_FROM." ";?>
                <span><?php print formatprice($product->product_price);?><?php print $product->_tmp_var_price_ext;?></span>
            </div>
        <?php }?>

<?php
 if ($product->getPriceCalculate() == 0) {
    echo ' договорная.';
 }else{
    print formatprice($product->getPriceCalculate());
 }?>

<?php if ($product->product_price() == 0) { echo ' договорная.';}else{ print formatprice($product->product_price());}?>

<div class = "jshop_price">
	                <?php if ($this->config->product_list_show_price_description) print _JSHOP_PRICE.": ";?>
	                <?php if ($product->show_price_from) print _JSHOP_FROM." ";?>
	                <span><?php echo $product->product_price == 0 ? ' договорная.' : formatprice($product->product_price);?><?php print $product->_tmp_var_price_ext;?></span>
	            </div>