CODEWITHSUNDEEP
phpformspost
Joel
Joel

Reputation: 2721

How do I set form name from php variable and use that in $_POST

This is a basic question I'm sure....

I have a normal form, but one of the fields is a Country dropdown menu that I am populating with an external xml script:

<?php 
//Build countries dropdown from GeoNames database
$xmlcountries = 'http://ws.geonames.org/countryInfo';
echo '<select name="custom_country" id="custom_country">';
$countries = simplexml_load_file($xmlcountries);
echo '<option value="">Your country</option>';
foreach ($countries->country as $country) {
    echo '<option value="'.$country->geonameId.'|'.$country->countryName.'">'.$country->countryName.'</option>';
}
echo '</select>';

?>

My form is this:

<form action="update.php" method="post">
    Country:<br />
    <input type="text" name="Country" size="100" /><br />
    State:<br />
    <input type="text" name="State" size="100" /><br />
    City:<br />
    <input type="text" name="City" size="100" /><br />
    <input type="submit" value="Update Database" />
</form>

I'd like the above $country variable to take the place of the name="Country" field in the form. How do I do that?

To be clear-when I submit the form, I want the value from the country dropdown to populate the $_POST['Country'].

Upvotes: 1

Views: 461

Answers (3)

Ja͢ck
Ja͢ck

Reputation: 173572

It seems like you just want to replace:

<input type="text" name="Country" size="100" /><br />

With this:

<?php

echo '<select name="Country" id="custom_country">';
$countries = simplexml_load_file($xmlcountries);
echo '<option value="">Your country</option>';
foreach ($countries->country as $country) {
    echo '<option value="'.$country->geonameId.'|'.$country->countryName.'">'.$country->countryName.'</option>';
}
echo '</select><br />';

?>

Upvotes: 2

KBoek
KBoek

Reputation: 5975

<?php 
...
echo '<select name="custom_country" id="custom_country" onchange="document.getElementById(\'Country\').value = this.value">';
?>

<input id="Country" type="text" name="Country" size="100" readonly="readonly" />

Upvotes: 1

1321941
1321941

Reputation: 2170

<input type="text" name="Country" value="<?php echo $country; ?>" size="100" /><br />

The value parameter will prefill that field with whatever you specify, in this case country.

Beware unless you tell it otherwise, this can be changed by the user, so that may be an issue for you depending on how you are using.

The value attribute is used differently for different input types:

For "button", "reset", and "submit" - it defines the text on the button For "text", "password", and "hidden" - it defines the initial (default) value of the input field For "checkbox", "radio", "image" - it defines the value associated with the input (this is also the value that is sent on submit) More Info

Upvotes: 1

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