CODEWITHSUNDEEP
phpjavascriptvariablesalert
Ivo San
Ivo San

Reputation: 1253

use variable from php as an alert for javascript

how can i use the variable from my php-sql to become the message for my javascript alert?

heres my code

<?php

    $select = "SELECT * FROM post";
    $result = mysql_query($select) or die("couldn't select table");


    while ($rows = mysql_fetch_array($result))
    {
        echo"<input type='button' class=term onclick='return terms()' value=Terms >";

        echo"<input type='hidden' value='$rows[terms]' id='term' name='term'>";
    }
?>  

<script language="JavaScript">
    function terms() 
    {
        var readers = document.getElementById("term"); 
        alert(readers.value);
    }
</script>

It works, the alert message displays. But I got the problem on displaying the right message for specific fetch of row. All got the same message (message from the first row).

I tried to use getElementByName but the alert doesn't pop-up, so i dont have to try making the input name="term[]" --------(into its array form)

Help please!

Upvotes: 0

Views: 6088

Answers (6)

Justin John
Justin John

Reputation: 9616

I think it will be find if you change this line of script

 echo"<input type='button' class=term onclick='terms()' value=Terms >";

onclick='terms()' here, instead of onclick='return terms()'

EDIT:

<?php   echo"<input type='button' class=term onclick='terms(this)' data-result ='". $rows['terms'] ."' value=Terms >"; ?>
      /* Remove the hidden field */
<script language="JavaScript">
    function terms(e) 
    {
        var readers = e.getAttribute('data-result'); 
        alert(readers);
    }
</script>

Upvotes: 1

pokopang
pokopang

Reputation: 507

You must give different id for each element. I think simple way to do that is by using auto increment for the id.

Upvotes: 0

luke
luke

Reputation: 407

I usually do the following:

<?php
  function alert($text){
    echo '<script type="text/javascript">alert("'.$text.'")</script>';
  }

  alert("test");
?>

Hope that helps.

Upvotes: 1

Michael Krelin - hacker
Michael Krelin - hacker

Reputation: 143081

All of your input elements have the same id. If you want to distinguish them, give them different identifiers. And pass the identifier to the terms function.

Upvotes: 0

pat34515
pat34515

Reputation: 1979

Change your second echo statement inside the while loop to:

echo"<input type='hidden' value='". $rows['terms'] ."' id='term' name='term'>";

Upvotes: 1

Ahmad
Ahmad

Reputation: 12727

You are overwriting the value or "term" in your HTML code after each iteration of While-loop. This way it will only get the last value

Upvotes: 0

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