create a drop down list from a multi dimensional array - php

Question

I have a multi dimensional array created from a mysql query. with each index holding an array containing customer information. I want to create a drop down list from this with the value being customer ID and the text being customer name but I don't know how to access the arrays inside the main array.
I have the following function which I used to create other drop down lists from single arrays but when I try to use it with a multi dimensional array all it returns is the index numbers. (i get a list of 0, 1, 2, 3)
function createDropDown($name = '', $options = array()) {
$dropDown = '<select name="'.$name.'">';
foreach ($options as $option => $value) {
$dropDown .= '<option value='.$value.'>'.$option.'</option>';
}
$dropDown .= '</select>';
return $dropDown;
}
EDIT
its 2 dimensional, an array holding arrays of customer details.
my query is ran on a different page so I save the results into a session variable with this.
$searchtext = $_POST['searchDB'];
$query = "SELECT * FROM customer WHERE First_Name LIKE '%$searchtext%'";
$data = mysql_query($query) or die(mysql_error());
$Customers = array();
while($row = mysql_fetch_assoc($data)){
$Customers[] = $row;
}
$anymatches = mysql_num_rows($data);
if ($anymatches != 0) {
$_SESSION['names']=$Customers;
}
print_r($array) gives me the following:
Array ( [0] => Array ( [ID] => 25 [First_Name] => Maggy [Surname] => barrows [Company_Name] => squiggle [Telephone] => 12121212 [Alt_Telephone] => 4343434 [notes] => ) )

Answer 1

Like that:
function createDropDown($name = '', $options = array()) {
$dropDown = '<select name="'.$name.'">';
foreach ($options as $option => $value) {
$dropDown .= '<option value='.$value['ID'].'>'.$value['First_Name'].' '.$value['Surname'].'</option>';
}
$dropDown .= '</select>';
return $dropDown;
}

Answer 2

function createDropDown($name = '', $options = array()) {
$dropDown = '<select name="'.$name.'">';
foreach ($options as $option ) {
$dropDown .= '<option value="'.$option["name"].'">'.$option["name"].'</option>';
}
$dropDown .= '</select>';
return $dropDown;
}
Try something like the above replaceing "name" with the field name of what you want for the value and label

Answer 3

In your foreach, the $option => $value might be easier to understand as $key => $option. The $key is the index of the option, and the $option is the value you set.
If $value is a single-dimension array, you can just access its values by their indices ($option['id'] and $option['name'], for example).
If your options are single-dimensional, you can just access them with something like:
foreach($options as $option) {
$dropDown .= '<option value="' . $option['id'] . '">' . $option['name'] . '</option>';
}

Answer 4

Since you are dealing with a 2 dimensional array, or in other words one array nested within another you have to run another foreach loop like this:
function createDropDown($name = '', $options = array()) {
$dropDown = '<select name="'.$name.'">';
foreach ($options as $customer) {
foreach($customer as $info) {
$dropDown .= '<option value='.$info["id"].'>'.$info["name"].'</option>';
}
}
$dropDown .= '</select>';
return $html;
}
I'm not sure what your actual indexes within your nested array are, so you may have to tweak the above code a little bit. Good luck!