zero value problem

[harrylmh]

I found a problem when dealing with zeros in forms. Post values containing 0 just won't be not empty.

Check this script:

<?php
if (empty($HTTP_POST_VARS["choose"]))
	echo "No value<br>";
else
{
	echo "There's a value! - $HTTP_POST_VARS[choose]<br>";
}
?>
<form method="post" action="got_value.php">
	<select name="choose">
		<option value="0">Zero</option>
		<option value="1">One</option>
	</select>
	<input type="submit" value="submit">
</form>

Try selecting Zero and submit. Then try One.

What's the problem???

Thank you.

 

[Gonzo]

Here use this

<?php
if (isset($HTTP_POST_VARS["choose"]) || $HTTP_POST_VARS["choose"] == "0") {
    echo "There's a value! - $HTTP_POST_VARS[choose]<br>";
} else {
    echo "No value<br>";
}
?>
<form method="post" action="test.php">
    <select name="choose">
        <option value="0">Zero</option>
        <option value="1">One</option>
    </select>
    <input type="submit" value="submit">
</form>

 

[harrylmh]

It works now, thank you very much Gonzo!!!