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Editorial Team
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Asked: 2026-06-04T07:19:53+00:00

I am trying to right some some JavaScript to define a variable using PHP.

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I am trying to right some some JavaScript to define a variable using PHP. The variable has a little jQuery in it which should get rendered by the client. I say “should” but really mean I want it to. What should I do to make o2 the same as o1 (i.e. covert the jQuery)?

Thank you!

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
<meta http-equiv="content-type" content="text/html; charset=ISO-8859-1" /> 
<title></title> 
<script src="http://code.jquery.com/jquery-latest.js" type="text/javascript"></script> 
<script>
$(function() {
    var o1={"foo":{"bar": "abc/index.php?="+$("#id").val()}};
    console.log(o1);
<?php
$d='abc/index.php';
$json='{"foo":{"bar": "'.$d.'?id=\"+$(\"#id\").val()"}}';
//echo($json);
$json=json_decode($json);
//echo(print_r($json,1));
$json=json_encode($json);
//echo($json);

echo("var o2=".$json.";");
?>

console.log(o2);
});

</script>

</head>

<body>
<input type="hidden" id="id" value="123" />
</body> 
</html>
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1 Answer

  1. Editorial Team

    You have this:

    <input type="hidden" id="id" value="123" />

    So I can assume that you are getting that id from a db right? Maybe like this:

    <input type="hidden" id="id" value="<?php echo $row[id];?>" />

    If this is the case do the following (I tested and works):

    You don’t need hidden inputs to do it.

    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
<meta http-equiv="content-type" content="text/html; charset=ISO-8859-1" /> 
<title></title> 
<script src="http://code.jquery.com/jquery-latest.js" type="text/javascript"></script> 
<script>
$(function() {

    <?php
        //From your SQL query you obtained
        //$row['id'] = 123;
        $id = $row['id'];
    ?>

    var o1={"foo":{"bar": "abc/index.php?=" + <?php echo $id ?>}};
    console.log(o1);

    <?php
    $d='abc/index.php';
    $json='{"foo":{"bar": "'.$d.'?='.$id.'"}}';
    //echo($json);
    $json=json_decode($json);
    //echo(print_r($json,1));
    $json=json_encode($json);
    //echo($json);
    echo("var o2=".$json.';');
    ?>

    console.log(o2);
});
</script>
</head>
<body>
</body> 
</html>
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