PHP - Changing Array Values

Hi
I have an array which looks like this when i do a print_r():

Array ( => Array ( [path] => 1 [order] => 2 ) [1] => Array ( [path] => 2 [order] => 1 ) [2] => Array ( [path] => 3 [order] => 2 ) )

In this instance, I want to change the values of the order key. So I do something like this so that the last array has a path of 3 and an order of 1, and the others have orders of 2

   foreach ($old_images as $old_image){
      if($old_image['path']==3){
         $old_image['order']="1";
      }
      else{
         $old_image['order']="2";
      }
   }

When i step through, i see that the order is changed, but when i do a print_r(), i get the same result. So even though im resetting the order value of the inside arrays, the multidimensional array does not change....
any ideas?

Ok I am testing foreach in an array as my practice. I wonder how can I assign values in the key of the array..

Here's the code


Code: [Select]
<?php


                $username = me_mysql_prep(trim($_POST['username']));
$first_name = me_mysql_prep(trim($_POST['first_name']));
$last_name = me_mysql_prep($_POST['last_name']);
$email = me_mysql_prep($_POST['email']);
$position = me_mysql_prep($_POST['Position']);
$password = me_mysql_prep($_POST['password']);
$hashed_password = sha1($password);



$required_fields = array($username,$first_name,$last_name, $email, $position, $password);



foreach($required as $key => $value)
{
if($value == "")
{
echo $key . " Cannot be empty<br>";
}

}


?>

So the result would be like this...

IF username, first name and last name are EMPTY it will echo:

Quote

username cannot be empty
first name cannot be empty
last name cannot be empty



Anyone?

Hi,

I'm using the following code:

<td>$row[color]</td>

and the possible values for this field are 1, 2 and 3. But I want the return to be red for 1, blue for 2, and green for 3.

How do I write it so that instead of getting a row of 1's, 2's and 3's, I change those numbers to their corresponding colors?

Thanks!

Hi all,

I'm a first time poster here and I would really appreciate some guidance with my latest php challenge! I've spent the entire day googling and reading and to be honest I think I'm really over my head and need the assistance of someone experienced to advise the best way to go!

I have a multi dimensional array that looks like (see below); the array is created by CodeIgniter's database library (the rows returned from a select query) but I think this is a generic PHP question as opposed to having anything to do with CI because it related to working with arrays.

I'm wondering how I might go about searching the array below for the key problem_id and a value equal to a variable which I would provide. Then, when it finds an array with a the matching key and variable, it outputs the other values in that part of the array too.

For example, using the sample data below. How would you recommend that I search the array for all the arrays that have the key problem_id and the value 3 and then have it output the value of the key problem_update_date  and the value of the key problem_update_text. Then keep searching to find the next occurrence?

Thanks in advance, as above, I've been searching really hard for the answer and believe i'm over my head!

Output of print_r($updates);

CI_DB_mysql_result Object
(
    [conn_id] => Resource id #30
    [result_id] => Resource id #35
    [result_array] => Array
        (
        )

    [result_object] => Array
        (
        )

    [current_row] => 0
    [num_rows] => 5
    [row_data] => 
)


Output of print_r($updates->result_array());

Array
(
    [0] => Array
        (
            [problem_update_id] => 1
            [problem_id] => 3
            [problem_update_date] => 2010-10-01
            [problem_update_text] => Some details about a paricular issue
            [problem_update_active] => 1
        )

    [1] => Array
        (
            [problem_update_id] => 4
            [problem_id] => 3
            [problem_update_date] => 2010-10-01
            [problem_update_text] => Another update about the problem with an ID of 3
            [problem_update_active] => 1
        )

    [2] => Array
        (
            [problem_update_id] => 5
            [problem_id] => 4
            [problem_update_date] => 2010-10-12
            [problem_update_text] => An update about the problem with an ID of four
            [problem_update_active] => 1
        )

    [3] => Array
        (
            [problem_update_id] => 6
            [problem_id] => 4
            [problem_update_date] => 2010-10-12
            [problem_update_text] => An update about the problem with an ID of 6
            [problem_update_active] => 1
        )

    [4] => Array
        (
            [problem_update_id] => 7
            [problem_id] => 3
            [problem_update_date] => 2010-10-12
            [problem_update_text] => Some new update about the problem with the ID of 3
            [problem_update_active] => 1
        )

)

Can be those <input ...> types with values changed from a script ?. Imagine it like we have an admin and we want to change some input values with a generated form on that page instead of going source and changing 1 by 1 ?