Home/ Questions/Q 7069951
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-28T05:30:29+00:00

I am attempting to get all the data from a MySQL db with PHP,

  • 0

I am attempting to get all the data from a MySQL db with PHP, initialise a 2D java array and populate it with the PHP data.

I am having trouble embedding JS in the PHP. I have marked up what is working and what isn’t.

As you will see, some of the embedded java works but not all.

Any thoughts?

<body>

<?php
    $con = mysql_connect("XXXXXX.COM","guest","password");
    mysql_select_db("HHG", $con);

    if (!$con)
    {
        die('Could not connect: ' . mysql_error());
    }
    else 
    {
        $result = mysql_query("SELECT * FROM articles", $con);
        $numrows = mysql_num_rows($result);
        echo "DB connection OK <br/>";
        echo "Found ";
        echo $numrows;
        echo " records <br/><br/>";
    } // EVERYTHING WORKS UP TO HERE
?> 


<script type="text/javascript">

document.write("THIS IS THE FISRT JS DOING SOMETHING"); // THIS DOES NOTHING
numrows = <?php echo $numrows; ?>; // THIS DOES NOTHING
string [][] hhgdata = new string[numrows][4]; // THIS DOES NOTHING
document.write("Records = " + numrows + "<br/>"); // THIS DOES NOTHING

</script>

<?
    $counter = 1;
    while ($row = mysql_fetch_assoc($result))
    {
        echo $row["idimg"]; echo "<br/>";  //THIS WORKS
        $hhgtitle = $row["hhgtitle"]; //THIS WORKS
        echo $hhgtitle; echo "<br/>"; //THIS WORKS

        ?>

        <script type="text/javascript"> //THIS WORKS
            counter = <?php echo $counter; ?>; //THIS WORKS
            document.write("counter = " + counter + "<br/><br/>"); //THIS WORKS

            hhgtitle = <?php echo $hhgtitle; ?>; // THIS DOES NOTHING
            document.write("Title: "); // THIS DOES NOTHING
            hhgdata[counter][1]= hhgtitle; // THIS DOES NOTHING
            document.write(hhgdata[counter][1]); // THIS DOES NOTHING
        </script>

        <?
        $counter++; // THIS WORKS
    }
?>

</body>
Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    You are mixing up Java and JavaScript. For example this is Java syntax, you can’t write this within a script tag which should only contain JavaScript:

    string [][] hhgdata = new string[numrows][4];

    The JavaScript arrays are dynamic, this should be enough:

    var hhgdata = [];

    When you want to add another array into it, as you seem to be doing later in your code, just do this:

    hhgdata[counter] = [];

    And then assign to the inner array:

    hhgdata[counter][1] = hhgtitle;

    You are also creating multiple assigning an unquoted string literal to variable with this (assuming $hhgtitle contains a string):

    hhgtitle = <?php echo $hhgtitle; ?>;

    It should be something like this:

    hhgtitle = <?php echo '"' . $hhgtitle .'"'; ?>;

    Finally, while it’s not incorrect, your PHP while loop is creating multiple script elements in your HTML.

    EDIT

    I have made the changes described above as well as in comments, copy-paste exactly and see how it goes:

    <body>

<?php
    $con = mysql_connect("XXXXXX.COM","guest","password");
    mysql_select_db("HHG", $con);

    if (!$con)
    {
        die('Could not connect: ' . mysql_error());
    }
    else 
    {
        $result = mysql_query("SELECT * FROM articles", $con);
        $numrows = mysql_num_rows($result);
        echo "DB connection OK <br/>";
        echo "Found ";
        echo $numrows;
        echo " records <br/><br/>";
    } // EVERYTHING WORKS UP TO HERE
?> 

<script type="text/javascript">
    document.write("THIS IS THE FISRT JS DOING SOMETHING"); // THIS DOES NOTHING
    numrows = <?php echo $numrows; ?>; // THIS DOES NOTHING
    var hhgdata = new Array(numrows); // THIS DOES NOTHING
    document.write("Records = " + numrows + "<br/>"); // THIS DOES NOTHING
</script>

<?php
    $counter = 1;
    while ($row = mysql_fetch_assoc($result))
    {
        echo $row["idimg"]; echo "<br/>";  //THIS WORKS
        $hhgtitle = $row["hhgtitle"]; //THIS WORKS
        echo $hhgtitle; echo "<br/>"; //THIS WORKS
?>
<script type="text/javascript"> //THIS WORKS
    var counter = <?php echo $counter; ?>; //THIS WORKS
    document.write("counter = " + counter); //THIS WORKS
    hhgtitle = <?php echo '"' . $hhgtitle . '"'; ?>; // THIS DOES NOTHING
    document.write("Title: "); // THIS DOES NOTHING
    hhgdata[counter] = [];
    hhgdata[counter][1]= hhgtitle; // THIS DOES NOTHING
    document.write("<br />hhgdata[counter][1]: " + hhgdata[counter][1]); // THIS DOES NOTHING
</script>
<?php
        $counter++; // THIS WORKS
    }
?>

</body>
    • 0