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Editorial Team
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Asked: 2026-05-27T17:58:04+00:00

EDIT: Here’s the "better" one. First Page <!DOCTYPE HTML> <html> <head> <link rel="stylesheet" type="text/css"

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EDIT: Here’s the "better" one.

First Page

<!DOCTYPE HTML>
<html>
<head>
<link rel="stylesheet" type="text/css" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1/themes/redmond/jquery-ui.css">
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
<script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1/jquery-ui.min.js"></script>
</head>
<body>
<form id="routeME" name="routeME" action="routeME.php" method="post">
<input id="key" name="key" type="hidden">
<input id="funcA" name="funcA" type="button" value="A">
<input id="funcB" name="funcB" type="button" value="B">
<input id="funcC" name="funcC" type="button" value="C">
</form>

<script type="text/javascript">

$('form#routeME :button').click(function() {
   $('#key').val($(this).attr('id'));
   $('form#routeME').submit();
});

</script>
</body>
</html>

Landing Page

<?php

$value = $_POST['key'];

if (isset($value)) call_user_func($value);

function funcA(){
    echo 'function A NEW!';
    }
function funcB(){
    echo 'function B NEW!';
    }
function funcC(){
    echo 'function C NEW!';
    }
?>

Below is the first posting…

If you have an HTML form and you POST it to a .php page, how can you pick up what the link or class was that was clicked on? I’m trying to run a .php function on the landing page depending on what link was clicked on in a JQuery function on the POSTing page. Here’s what I’m doing right now.

First Page

<!DOCTYPE HTML>
<html>
<head>
<link rel="stylesheet" type="text/css" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1/themes/redmond/jquery-ui.css">
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
<script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1/jquery-ui.min.js"></script>
<script type="text/javascript">

$(document).ready(function(){
    $("#funcA").click(function(){
        $('form#routeME').attr({action: "routeME.php"});
        $('#key').val('A');
        $('form#routeME').submit();
    });
    $("#funcB").click(function(){
        $('form#routeME').attr({action: "routeME.php"});
        $('#key').val('B');
        $('form#routeME').submit();

    });
    $("#funcC").click(function(){
        $('form#routeME').attr({action: "routeME.php"});
        $('#key').val('C');
        $('form#routeME').submit();
    });
});
</script>
</head>

<body>

<form id="routeME" name="routeME" action="routeME.php" method="post">

<input id="key" name="key" type="hidden">

<input id="funcA" name="funcA" type="button" value="A">
<input id="funcB" name="funcB" type="button" value="B">
<input id="funcC" name="funcC" type="button" value="C">

</form>
</body>
</html>

PHP Landing page

<?php

$value = $_POST['key'];
//echo $value;

if (($value=='A')) {
    A();
    } else if (($value=='B')) {
        B();
        }else if (($value=='C')) {
            C();
            }

function A(){
    echo 'function A!';
    }
function B(){
    echo 'function B!';
    }
function C(){
    echo 'function C!';
    }

?>

It’s doing what I want in a round about way but is there a better way to get what I want??

Thanks!

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1 Answer

  1. Editorial Team

    I believe you’re looking for the call_user_func function

    if (isset($value)) call_user_func($value);

    call_user_func Calls the function with the name passed by $value, so if you submitted ‘A’, your script would run the A() function.

    EDIT: If you happen to know what “range” of functions to call, you could do a check I’ve commonly used.

    if (isset($value))
{
    $array = array('function_1', 'function_2', 'function_3');
    if (in_array($value, $array))
    {
        /* The $value is expected, so try to run the function */
        call_user_func($value);
    }
    else die("Invalid function passed!");
}
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