Construct a new array out of an existing array in PHP - php

Question

I have an $accounts array with this data in it
array:2 [▼
0 => array:25 [▼
"email_address" => "bob#xyzcorp.com"
"account_id" => 111
"password" => "abc"
"account_type" => "admin"
"name_prefix" => "Mr"
"first_name" => "Bob"
"middle_names" => "X."
"last_name" => "Jones"
"name_suffix" => "Jr."
"non_person_name" => false
"DBA" => ""
"display_name" => "BobJ"
"address1" => "111 Park Ave"
"address2" => "Floor 4"
"address3" => "Suite 4011"
"city" => "New York"
"state" => "NY"
"postal_code" => "10022"
"nation_code" => "USA"
"phone1" => "212-555-1212"
"phone2" => ""
"phone3" => ""
"time_zone_offset_from_utc" => -5
"customer_type" => 2
"last_updated_utc_in_secs" => 200200300
]
1 => array:25 [▼
"email_address" => "tom#xyzcorp.com"
"account_id" => 112
"password" => "abd"
"account_type" => "mbn"
"name_prefix" => "Mr"
"first_name" => "Tom"
"middle_names" => "Z."
"last_name" => "Smith"
"name_suffix" => "Sr."
"non_person_name" => false
"DBA" => ""
"display_name" => "TomS"
"address1" => "112 Park Ave"
"address2" => "Floor 3"
"address3" => "Suite 3011"
"city" => "New York"
"state" => "NY"
"postal_code" => "10022"
"nation_code" => "USA"
"phone1" => "212-555-2323"
"phone2" => ""
"phone3" => ""
"time_zone_offset_from_utc" => -5
"customer_type" => 2
"last_updated_utc_in_secs" => 200200300
]
]
I want to construct a new array out of this array.
But the new array I only want to have 2 keys: email_address and the password.
I've tried:
$new_array = array();
$i = 0;
foreach ($accounts as $account) {
$new_array[$i++];
foreach ($account as $user) {
$new_array['email_address'] = $user['email_address'];
$new_array['password'] = $user['password'];
}
}
dd($new_array);
I hope someone can give me a little push here.

Answer 1

You're not adding new elements to $new_array. Each time through the foreach loop you overwrite the same two keys. The elements of $new_array should be arrays.
You also don't need the inner loop, because each account is just one user.
foreach ($accounts as $account) {
$new_array[] = array('email_address' => $account['email_address'],
'password' => $account['password']);
}
You don't need the variable $i, because $new_array[] = pushes a new element onto the array.

Answer 2

$new_array[$i++];
foreach ($account as $user) {
$new_array['email_address'] = $user['email_address'];
$new_array['password'] = $user['password'];
}
Your issue is here, you almost have it, but as you are using the array within the array, with the two sets of foreach loops, you thus need to have the same depth of structure if you want to preserve more than one records' password and email_address.
So, replace the above quote with:
$i++
$new_array[$i];
foreach ($account as $user) {
$new_array[$i]['email_address'] = $user['email_address'];
$new_array[$i]['password'] = $user['password'];
}
This will output
$new_array(
[0] ===> ['password'] --> {data}
===> ['email_address'] --> {data}
[1] ===> ['password'] --> {data}
===> ['email_address'] --> {data}
....
)
Edit:
This can further be reduced and tidied up as:
$i++
$new_array[$i];
$new_array[$i]['email_address'] = $account['email_address'];
$new_array[$i]['password'] = $account['password'];
Because you know the key of the value you want so you don't need to break the outer array apart to find anything, you can get it by direct reference to outerValue (account) and then key(email_address, etc).