How get post value in pagination

Question

I am working on search functionality with pagination in php.Below is my code but whenever I click on next link the search query is not taking variable which is passed through PO

Answer 1

There are a couple problems in your code.

First:

You are using the $_GET variable incorrectly. You have $_GET{'page'}, but you should be using it the same way as the$_POST variable, like this: $_GET['page']

Second:

You are interpreting the idea of POSTing and clicking links incorrectly. What you need to make with your next and previous buttons are a hidden form that has all the other variables you need. For example, the simplest way that won't involve changing a lot of your other code:

if( $page > 0 & $left_rec > $rec_limit)
{
    $last = $page - 2;
    // Previous button form
    echo "<form action='?page=$last' method='POST'>";
    echo "<input type='hidden' name='q' value='" . $_POST['q'] . "' />"; // This will be a field that saves information but won't appear on the page (though a user could see it if they view source)
    echo "<input type='submit' value='Previous Records' />";
    echo "</form>";
    echo " | "; // The delimiting character you were using, you'll need to style the input type='submit's to look more like a link if that's what you are going for
    // Next button form
    echo "<form action='?page=$page' method='POST'>";
    echo "<input type='hidden' name='q' value='" . $_POST['q'] . "' />"; // This will be a field that saves information but won't appear on the page (though a user could see it if they view source)
    echo "<input type='submit' value='Next  Records' />";
    echo "</form>";
}

This method will keep your variables in the request. Using a link essentially resets the $_POST variable. There are a ton of other possible solutions, but this is one will require the least amount of work to modify your example.

Answer 2

if you are creating sorting and searching functionality than I will suggest you to use $_SESSION variable rather than $_POST or $_GET it will help you manage your grid/data very well.