How to handle dynamic input fields in post method using Php

[oceanwap]

I have created a script to allow user to input text inside a form using post method having user defined no of fields.
Here is the code:-

if(isset($_get['url_no']))
{
<form name="myform" action="'.$_SERVER['PHP_SELF'].'" method="post">
$counter = 1;
$url_no = 1;
while ($url_no <= $_GET['url_no'])
{
echo 'title:<input type = "text" name="title'.$counter.'" ><br/>
link:<input type = "text" name="url'.$counter.'" ><br/>
';
$url_no++;
$counter++;
}
<input type="submit" name="submit">
</form>
}

Now how I can process this form and generate set of anchor tags with user supplied title and url.

 

[masshuu]

i would say, make a hidden input, give it $_GET['url_no']
then when posted, check the hidden feild, and just use something like

$Count = $_POST['hiddenCount'];
$Data = "Your Links: <br />";
for($i = 0; $i < $Count; $i++)
{
   $Data .= '<a href="' . $_POST['url'.$i] . '>' .  $_POST['title'.$i] . '</a><br />';
}

alternatively, you could do:

$i = 0;
$Data = "Your Links: <br />";
while(isset( $_POST['url'.$i]))
{
   $Data .= '<a href="' . $_POST['url'.$i] . '>' .  $_POST['title'.$i] . '</a><br />';
   $i++;
}

which doesn't need to have a hidden value with the count.

 

[misson]

Use array syntax in the form input names to get the input as arrays:

<?php
for ($i=0; $i < $_GET['url_no']; ++$i) {
  ?><label for="title_<?php echo $i ?>">Title:</label><input name="title[]" id="title_<?php echo $i ?>" />
  <label for="url_<?php echo $i ?>">Link:</label><input name="url[]" id="url_<?php echo $i ?>" />
  <?php
}

You can use count or foreach in your loop over input elements.

for ($i=0; $i < count($_POST['title']); ++$i) {
   ... $_POST['title'][$i] ...
   ... $_POST['url'][$i] ...
}