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  • how does foreach loop exactaly work in php

    @shristi.nawani
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    The foreach function in php will be used for a easy way to iterate over the loop and it is only used in array and objects or It will give you an error when you try to use it on a variable with different data type.

    1. Syntax:
    2.    foreach(array_expression as $value)
    2. <?php
    3.   if (isset($_GET['id']) && isset($_GET['product']) && isset($_GET['price'])) 
    4.     {
    5.      $id=$_GET['id'];
    6.      $Product=$_GET['product'];
    7.      $Price=$_GET['price'];
    8.     $arr = array('id'=>$id,'prod'=>$Product,'price'=>$Price);
    9.     $_SESSION['list'][]=$arr;
    10.     header('Location:cart.php');
    11.     }
    12. ?>
    13.  
    14. <?php 
    15. foreach($_SESSION['list'] as $value){
    16.     ?>
    17.     <tr>
    18.         <td><?php echo  $value['id']; ?></td>
    19.         <td><?php echo $value['prod']; ?> </td>
    20.         <td><?php echo $value['price']; ?> </td>
    21.     <tr> 
    22. <?php }
    23. ?>

    This loop gives and array_expression as a $_SESSION['name'] on every iteration, the value of the current element is assigned to $value. Every loop the value of the current element is assigned to $value. The internal array pointer is increased by one to the next element. The foreach loop runs for the all elements of an array.

    php html foreach array
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