next element in a associative php array

Question

This seems so easy but i cant figure it out

$users_emails = array(
'Spence' => '[email protected]', 
'Matt'   => '[email protected]', 
'Marc'   => '[email protected]', 
'Adam'   => '[email protected]', 
'Paul'   => '[email protected]');

I need to get the next element in the array but i cant figure it out... so for example

If i have

$users_emails['Spence']

I need to return [email protected] and if Its

$users_emails['Paul']

i need start from the top and return [email protected]

i tried this

$next_user = (next($users_emails["Spence"]));

and this also

 ($users_emails["Spence"] + 1 ) % count( $users_emails )

but they dont return what i am expecting

Is the name you're using in the key a one-time input, or do you need to print all the values out with their corresponding emails? — tkm256
– tkm256, Commented May 26, 2011 at 16:20
you have to move the array_pointer to next and prev your self read the Array functions and its there how to iterate array manually — Khurram Ijaz
– Khurram Ijaz, Commented May 26, 2011 at 16:25

shafiq.rst · Accepted Answer · 2019-04-20 08:19:18Z

7

reset($array);
while (list($key, $value) = each($array)) { ...

Reset() rewind the array pointer to the first element, each() returns the current element key and value as an array then move to the next element.

list($key, $value) = each($array);
// is the same thing as
$key = key($array); // get the current key
$value = current($array); // get the current value
next($array); // move the internal pointer to the next element

To navigate you can use next($array), prev($array), reset($array), end($array), while the data is read using current($array) and/or key($array).

Or you can use foreach if you loop over all of them

foreach ($array as $key => $value) { ...

edited Apr 20, 2019 at 8:19

shafiq.rst

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answered May 26, 2011 at 16:22

Lepidosteus

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Comments

Jonathan Kuhn · Accepted Answer · 2011-05-26 16:32:58Z

4

You could do something like this:

$users_emails = array(
'Spence' => '[email protected]', 
'Matt'   => '[email protected]', 
'Marc'   => '[email protected]', 
'Adam'   => '[email protected]', 
'Paul'   => '[email protected]');

$current = 'Spence';
$keys = array_keys($users_emails);
$ordinal = (array_search($current,$keys)+1)%count($keys);
$next = $keys[$ordinal];
print_r($users_emails[$next]);

However I think you might have an error in your logic and what you are doing can be done better, such as using a foreach loop.

edited May 26, 2011 at 16:32

answered May 26, 2011 at 16:25

Jonathan Kuhn

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Comments

cusimar9 · Accepted Answer · 2011-05-26 16:20:46Z

0

You would be better storing these in an indexed array to achieve the functionality you're looking for

answered May 26, 2011 at 16:20

cusimar9

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