因为循环不能正常工作 - 有时会跳过它

Question

I have a product called customized gift box with different sizes like 5,9,12 etc.

When the users select items to the gift box and add to cart, I am fetching those chocolate names too with the Quantity of the chocolate.

In the code below, I have written if the product name includes customized then fetch the related chocolate using session in a for loop.

And the For loop is working properly but, sometimes it doesn't.

How can this be resolved?

<?php 
if(stristr($this->getProductUrl(),"customized")){
?>
<div>
<?php
echo "<br/>";

$itid = $_item->getId();
echo $itid;
$strrep = str_replace(' ','_',$this->htmlEscape($this->getProductName()));
for($k=1;$k<=sizeof($_SESSION[$strrep."item".$itid]);$k++){
  if($_SESSION[$strrep."item".$itid][$k]!=""){
    echo "&nbsp;&nbsp;&nbsp;<font size='1px'>".$_SESSION[$strrep."qty".$itid][$k]." x ".$_SESSION[$strrep."item".$itid][$k]."</font><br/>";
  }
}
?>

</div>

Answer 1

Your for loop starts with 1 and finishes with the sizeof's element. Array indices are zero based in PHP so you should do

for ($k=0;$k<count($_SESSION[$strrep."item".$itid]);$k++){
  ...
}

instead. I also replaced sizeof() by count() but that is a matter of preference ...