Associate PHP index with another array

Question

I have 3 explode statements:

$emails = explode(',', $row['email']);
$firstnames = explode(',', $row['first_name']);
$lastnames = explode(',', $row['last_name']);

each explode produces three (3) arrays:

//emails
Array
(
    [0] => [email protected]
    [1] => [email protected]
    [2] => [email protected]
    [3] => [email protected]
)

//first name
Array
(
    [0] => Bill
    [1] => Jake
    [2] => John
    [3] => Bob
)

//last name
Array
(
    [0] => Jones
    [1] => Smith
    [2] => Johnson
    [3] => Bakers
)

I can get the one array easily like this: for example:

foreach ($emails as $email) {
    echo $email;
}

That will echo out the emails. But I want to add $firstname and $lastname into it. for example, I want to echo:

[email protected] Bill Jones

how can i do it?

Devon Bessemer · Accepted Answer · 2017-05-08 00:54:05Z

2

foreach can assign a key and value if you use the appropriate syntax:

foreach ($emails as $key => $email) {
    echo $email;
    echo $firstnames[$key];
    echo $lastnames[$key];
}

Next time, consult the manual: http://php.net/manual/en/control-structures.foreach.php as this is shown at the very top.

As Pyromonk pointed out, for is useful in situations where you have indexed arrays:

for ($i = 0, $n = count($emails); $i < $n; $i++) {
    echo $emails[$i];
    echo $firstnames[$i];
    echo $lastnames[$i];
}

edited May 8, 2017 at 0:54

answered May 8, 2017 at 0:49

Devon Bessemer

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1 Comment

Pyromonk Over a year ago

Alternatively, a for loop could be used instead of foreach, as it would make more sense in this context.

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