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Using JavaScript inside PHP code

Ok, so I have a reservation system I'm working on, and I have events created in a table that is populated by PHP if the administrator adds new events. I would like to run a script if the user is trying to write an event and then submit the form to php. I would like to do this because I want to find out if the user has a voucher and wants to pay by card or via paypal.

Here is a screenshot of the table, sorry only for the link, I need 10 reputation points.

http://thomasniven.com/table.jpg

PHP code that creates the tables:

<?php
$con = mysql_connect("localhost","root","");

if(!$con)
{
    die('Could not connect: ' . mysql_error());
}

mysql_select_db("flexiflash", $con);
 echo "<thead>";
 echo "<tr>";
 echo "<th>ID</th>";
 echo "<th>Venue</th>";
 echo "<th>Event</th>";
 echo "<th>Date</th>";
 echo "<th>Time</th>";
 echo "<th></th>";
 echo "</tr>";
 echo "</thead>";

$result = mysql_query("SELECT * FROM events");

while($row = mysql_fetch_array($result))
{
    echo "<tbody>";
    echo "<form class='table-form'  action='book_event.php' method='post' onsubmit='return check()'>";
    echo "<tr>";
    echo "<td>" . $row['Event_ID'] . "</td>";
    echo "<td>" . $row['Event_Venue'] . "</td>";
    echo "<td>" . $row['Event_Name'] . "</td>";
    echo "<td>" . $row['Event_Date'] . "</td>";
    echo "<td>" . $row['Event_Time'] . "</td>";
    echo "<td><input type='submit' class='sub_btn' name='submit' value='Book now'></td>";
    echo "</tr>";
    echo "</form>";
    echo "</tbody>";
}

mysql_close($con);
?>

IF YOU NEED ANY MORE INFORMATION TO LET ME KNOW

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1 answer

PHP - . JavaScript - . ? check()? ,

<?php

echo '<script>
function check() {
  //do something
  return true;
}
</script>';

?>

. . :)

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