assign a value to the javascript variable

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assign a value to the javascript variable

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#1 by (4 votes)

4

The problem is the following php returns me several buttons with a hidden input to identify the button.

$nome = $mysqli->query("SELECT * FROM menbros ORDER BY id");
while ($row = $nome->fetch_assoc()) {
$nome = $row['identifier'];
$i    = $row['id'];
<input type='hidden' value='".$i."' id='troca'/>
<button type='button' onclick='troca()'>
}

I need the javascript variable to get the value of the input of the button that was clicked.

This form down returns the first input of the page but as I have several I need my variable to get the value of the input above the button clicked. var exchange = $ ("# exchange"). val ();

php javascript

asked by anonymous 06.11.2016 / 18:21

1 answer

In the specialized class should I use self or parent to access the variables? Divide string into substrings and search for them in another

score 4 · Accepted Answer

Do not use the same ID for different elements, ie IDs must be unique and there can only be one per page, without repetitions.

An alternative would look like this:

$nome = $mysqli->query("SELECT * FROM menbros ORDER BY id");
while ($row = $nome->fetch_assoc()) {
    $nome = $row['identifier'];
    $i    = $row['id'];
    echo "<button type='button' onclick='troca(this)' value='".$i."'>";
}

without input and without id . So you can get the value of the button directly ...

and in JavaScript:

function troca(btn) {
    alert('Botão nr: ' + btn.value);
}

assign a value to the javascript variable

1 answer

jsFiddle: link