Accent / PHP / Javascript / Uncaught SyntaxError意外标识符

Question

I have a problem with my PHP/JavaScript and accent. When I give a variable who contain an accent, the JavaScript's console say : Uncaught SyntaxError Unexpected Identifier.

PHP:

foreach($credit as $k => $v)
{
    $id = $credit[$k]->id_credit;
    $nom = $credit[$k]->nom_credit;
    $prix = $credit[$k]->prix_credit;
    echo "<a onClick='modification(".$id.",".$nom.",".$prix.");'>" . Image::resize('images/credit/' . $credit[$k]->id_credit . "." . $credit[$k]->format_image_credit,100,100) . "</a>";
}

JavaScript:

function modification(id,nom,prix)
{
    var div = document.getElementById('modifCredit').style.display = 'block';
    alert(id + " " + nom + " " + prix);
}

Without $nom, all works. And If I replace :

 $nom = $credit[$k]->nom_credit;

By :

$nom = "example";

I got :

Uncaught ReferenceError: example is not define.

Answer 1

I think your php code results in something like

<a onClick='modification(3, example, 25);'>

which makes the javascript interpreter believe that "example" is the name of a variable. You need to enclose it in quotes so that javascript interprets it as a string.

<a onClick='modification(3, "example", 25);'>

I assume $id and $prix are always numbers, and numbers should not be quoted and will not appear as variable names to the javascript interpreter.

The reason why you get a different error message when $nom contains an accent is that a variable name with an accent is invalid, and the interpreter discovers the invalid identifier before it discovers that the variable is undefined.