Foreach value from POST from form

Question

I post some data over to another page from a form  It s a shopping cart  and the form that s being submitted is being generated on the page before depending on how many items are in the cart  For example  if there s only 1 items then we only have the field name  item name 1  which should store a value like  Sticker  and  item price 1  which stores the price of that item  But if someone has 5 items  we would need  item name 2    item name 3   etc  to get the values for each item up to the fifth one   What would be the best way to loop through those items to get the values   Here s what I have  which obviously isn t working    extract   POST     x   1     Assuming there s always one item we re on this page  we set the variable to get into the loop  while    item name     x            echo    item name    x     x         I m still relatively new to this kind of usage  so I m not entirely how the best way to deal with it    Thanks

User · Answer

If your post keys have to be parsed and the keys are sequences with data, you can try this:

Post data example: Storeitem|14=data14

foreach($_POST as $key => $value){
    $key=Filterdata($key); $value=Filterdata($value);
    echo($key."=".$value."<br>");
}

then you can use strpos to isolate the end of the key separating the number from the key.

User · Answer

First  please do not use extract    it can be a security problem because it is easy to manipulate POST parameters  In addition  you don t have to use variable variable names  that sounds odd   instead   foreach   POST as  key   gt   value      echo  POST parameter   key  has   value        To ensure that you have only parameters beginning with  item name  you can check it like so    param name    item name   if substr  key  0  strlen  param name       param name         do something

User · Answer

i wouldn t do it this way  I d use name arrays in the form elements  so i d get the layout    POST  field   0   name      value     POST  field   0   price      value     POST  field   1   name      value     POST  field   1   price      value     then you could do an array slice to get the amount you need

User · Answer

Use array-like fields    lt input name  name for the items     gt    You can loop through the fields   foreach   POST  name for the items   as  item        do something with  item

[php] Foreach value from POST from form

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