Get variable from query string

Question

I was trying to get variable in Query String from URL. But somehow, its just got one variable instead of getting all variables from querystring. I really don't know what goes wrong with my code. Here is the code I want to print out error from the invalidate form:

<?php       
            displayForm();
            function displayForm(){
                ?>                    
                <form action="./prod_add_action.php" method="post" name="addproductForm">
                    <fieldset>
                        <legend>Online Ordering System Setup</legend>                        
                        <label for="product_name">Product Name: </label><input type="text" name="product_name" value="" /><?php echo $_GET["name_error"]; ?>
                        <label for="product_date">Product Date: </label><input type="text" name="product_date" value="" /><?php echo $_GET["date_error"]; ?>
                        <label for="product_price">Product Price: </label><input type="text" name="product_price" value="" /><?php echo $_GET["price_error"]; ?>
                        <input name="add_button" type="submit" value="Add" />
                        <input name="reset_button" type="reset" value="Clear" />
                    </fieldset>
                </form>
                <?php
            }
            ?>

And here is the code I created the querystring:

$query_string = "name_error=" .urlencode($name_error) ."&amp;date_error=" .urlencode($date_error) ."&amp;price_error=" .urlencode($price_error);
            header("Location: ./prod_add.php?$query_string");
            exit();

In the first code, the page only print the first $_GET['name_error'], while it should be include $_GET['date_error'] and $_GET['price_error. '] This is the address:

http://example.com/prod_add.php?name_error=Product+name+must+be+characters+only&date_error=Product+date+must+be+input+as+this+formate+DD-MM-YYYY&price_error=Product+price+must+be+float+number+only

iiro · Accepted Answer · 2012-05-22 09:21:50Z

3

You should use & instead of &'s ?

$query_string = "name_error=" .urlencode($name_error) ."&date_error=" .urlencode($date_error) ."&price_error=" .urlencode($price_error);
            header("Location: ./prod_add.php?$query_string");
            exit();

answered May 22, 2012 at 9:21

iiro

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2 Comments

petschekr Over a year ago

Yah, no need to HTML escape &s in a URL if they are being used for what they are supposed to be used for (separating data).

babygau Over a year ago

yEAH, I can see it now, that's my bad. Thank you so much, it's fixed :)

Vishal · Accepted Answer · 2012-05-22 09:25:58Z

1

Change & to & as:

$query_string = "name_error=" . urlencode($name_error) . "&date_error=" . urlencode($date_error) . "&price_error=" . urlencode($price_error);
header("Location: ./prod_add.php?$query_string");
exit();

answered May 22, 2012 at 9:25

Vishal

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