PHP：会话二维数组-跟踪已浏览产品-PHP:Session2-DimensionalArray-TrackViewedProducts

It's more or less right - just 2 lines need to be changed.

它或多或少是正确的 - 只需要更改2行。

1. There's no need for the extra array() around array_unshift and array_pop.

array_unshift和array_pop周围不需要额外的array()。

2. When you use array_unshift you're pushing an array of items (not the id/codes individually) - I think you mean array_unshift($RView, array($prodid,$name,...))

当你使用array_unshift时,你正在推送一个项目数组(而不是单独的id /代码) - 我认为你的意思是array_unshift($ RView,array($ prodid,$ name,...))

3. What if $RView doesn't have 5 elements? In that case you're accessing undefined array indices (which may or may not show an error). Change it to a foreach loop: e.g.
   foreach ($Rview as $prod) echo $prod['Name']...

如果$ RView没有5个元素怎么办?在这种情况下,您正在访问未定义的数组索引(可能会也可能不会显示错误)。将其更改为foreach循环:例如foreach($ Rview as $ prod)echo $ prod ['Name'] ...

It should work after you make these changes. You might want to clean up the coding style a bit, though :)

进行这些更改后,它应该可以正常工作。你可能想稍微清理编码风格,但:)

EDIT: Oh, I see, when you're referencing the array in the for loop it doesn't know that the array has "ProdID" and "Name" indices. When you make an array you have to define the indexes using the => operator.

编辑:哦,我知道,当你在for循环中引用数组时,它不知道数组有“ProdID”和“Name”索引。创建数组时,必须使用=>运算符定义索引。

• Add indexes to the array when you array_unshift:
  array_unshift($RView, array("ProdID" => $row_rsProd["ProdID"], "Name"...))

  在array_unshift中为数组添加索引:array_unshift($ RView,array(“ProdID”=> $ row_rsProd [“ProdID”],“Name”......))

• If row_rsProd isn't too big, you can just tack the entire row_rsprod onto $RView.
  so change array_unshift(...) to just $RView[] = $row_rsProd
  This way the indexes are preserved.

  如果row_rsProd不是太大,你可以将整个row_rsprod添加到$ RView上。所以将array_unshift(...)改为$ RView [] = $ row_rsProd这样就保留了索引。

• Alternatively you can change the indicies in the for loop to match. Right now the array you unshift onto $RView is 0-based - $RView[0][0] is the product ID for the first product, etc.
  So you can change the stuff in the foreach loop to
  echo "
• ..." $prod[0] $prod[1] $prod[2]

或者,您可以更改for循环中的标记以匹配。现在你卸载到$ RView的数组是基于0的 - $ RView [0] [0]是第一个产品的产品ID,等等。所以你可以改变foreach循环中的东西来回显“

• 。 ..“$ prod [0] $ prod [1] $ prod [2]

Hope that helps!

希望有所帮助!