加載PHP代碼阻止網站內容

Question

我遇到以下代碼的問題。它只是阻止網站的其他部分加載，並沒有達到預期的功能。

有一個JS的主要PHP之前，它看起來如下：

<script type="text/javascript"> 
    //http://jsbin.com/ujuse/1/edit 
$(function() { 
    $("input[type='checkbox']").on('change', function() { 
     var boxes = []; 
     // You could save a little time and space by doing this: 
     var name = this.name; 
     // critical change on next line 
     $("input[type='checkbox'][name='"+this.name+"']:checked").each(function() { 
      boxes.push(this.value); 
     }); 
     if (boxes.length) { 
      $(".loadingItems").fadeIn(300); 
      // Change the name here as well 
      $(".indexMain").load('store/indexMain.php?'+this.name+'=' + boxes.join("+"), 
      function() { 
       $(".indexMain").fadeIn('slow'); 
       $(".loadingItems").fadeOut(300); 
      }); 

     } else { 
      $(".loadingItems").fadeIn(300); 
      $(".indexMain").load('store/indexMain.php', function() { 
       $(".indexMain").fadeIn('slow'); 
       $(".loadingItems").fadeOut(300); 
      }); 
     } 
    }); 
}); 
</script> 

---

<?php 
function echoCheckboxSet($con, $header, $divClass, $columnName, $setName) { 
$checkboxes = $con -> prepare("SELECT DISTINCT $columnName FROM item_descr ORDER BY $columnName ASC"); 
$checkboxes->execute(); 
?> 
<div class="bgFilterTitles"> 
    <h1 class="filterTitles"><?php echo $header;?></h1> 
</div> 
<div class="<?php echo $divClass; ?>"> 
<?php 
    while ($box = $checkboxes->fetch(PDO::FETCH_ASSOC)): 
    $boxColumnName = str_replace('_',' ',$box[$columnName]); 
?> 
     <input type='checkbox' class='regularCheckbox' name='<?php echo $setName; ?>' value='<?php echo $box[$columnName]; ?>' /> 
     <font class='similarItemsText'><?php echo $boxColumnName; ?></font> 
     <br /> 
<?php 
endwhile; 
?> 
</div> 
<?php 
} // end of echoCheckboxSet 

// Call our method twice, once for colors and once for prices 
echoCheckBoxSet("COLOR", "colors", "color_base1", "color"); 
echoCheckBoxSet("PRICE", "prices", "price", "price"); 
?> 

---

Warning: Missing argument 5 for echoCheckboxSet(), called in 
\store\indexLeftBar.php on line 58 and defined in \store\indexLeftBar.php on line 35 

    Fatal error: Call to a member function prepare() on a non-object in \store\indexLeftBar.php on line 36 

你看到的任何問題？

謝謝！

Answer 1

$con

被使用，但不能在範圍：

function echoCheckboxSet($header, $divClass, $columnName, $setName) { 
    $checkboxes = $con->.... 
} 

無論是在將它作爲一個參數（如下所示）的功能，或聲明爲global（後者不推薦）。

function echoCheckboxSet($con, $header, $divClass, $columnName, $setName) { 
    $checkboxes = $con->.... 
} 

$con = some_method_that_connects_to_your_db(); // <!-- Still need this 
echoCheckBoxSet($con, "COLOR", "colors", "color_base1", "color");