如果變量不爲空，則顯示div

Question

如果$ row_thumbs ['Listino 9']中包含的價格不爲空，我想用「添加到購物車」按鈕顯示此div。如何才能完成？ jQuery的？

<div id="button" style="padding: 10px 0px 10px 0px;">  
     <form name="eCart1_1_ATC_<?php echo $row_thumbs["Cod."]; ?>" method="POST" action="<?php echo $_SERVER["PHP_SELF"]; ?><?php echo (isset($_SERVER["QUERY_STRING"]) && $_SERVER["QUERY_STRING"] != "")?"?".$_SERVER["QUERY_STRING"]:""; ?>"> 
     <input type="hidden" name="eCart1_1_ID_Add" value="<?php echo $row_thumbs["Cod."]; ?>" > 
     <input type="hidden" name="eCart1_1_Quantity_Add" value="1" size="2" > 
     <input type="image" src="images/acquista.png" width="95" border="0" class="eC_ImageButton" value="Aggiungi al carrello" name="eCart1_1_ATC"></form>  
     </div> 

Answer 1

取消對第一線，則該按鈕將顯示，請確保該腳本在服務器上運行，也是我永遠不會讓空間$ row_thumbs [「ListinoHERE9」]

<?php 

    //$row_thumbs['Listino_9']='cheater'; 

    if($row_thumbs['Listino_9']!='') { 
     echo '<div class="button"> B U T T O N</div>'; 
    } 
?> 
<style type="text/css"> 
.button { 
    padding:5px; 
    width:100px; 
    background-color:gray; 
} 
.button:hover { 
    cursor:pointer; 
    background-color:orange; 

} 
</style> 
<script src="http://code.jquery.com/jquery-latest.js"></script> 
<script type="text/javascript"> 

$(document).ready(function(){ 
    $('.button').click(function(){ 
     $('.show-div-if-button-gets-clicked').toggle(); 
    }); 
}); 
</script> 

<div class="show-div-if-button-gets-clicked" style="display:none;"> 
    <form name="eCart1_1_ATC_<?php echo $row_thumbs["Cod."]; ?>" method="POST" action="<?php echo $_SERVER["PHP_SELF"]; ?><?php echo (isset($_SERVER["QUERY_STRING"]) && $_SERVER["QUERY_STRING"] != "")?"?".$_SERVER["QUERY_STRING"]:""; ?>"> 
    <input type="hidden" name="eCart1_1_ID_Add" value="<?php echo $row_thumbs["Cod."]; ?>" > 
    <input type="hidden" name="eCart1_1_Quantity_Add" value="1" size="2" > 
    <input type="image" src="images/acquista.png" width="95" border="0" class="eC_ImageButton" value="Aggiungi al carrello" name="eCart1_1_ATC"></form>  
</div>