How to cast array elements to strings in PHP?

Question

If I have a array with objects:

$a = array($objA, $objB);

(each object has a __toString()-method)

How can I cast all array elements to string so that array $a contains no more objects but their string representation? Is there a one-liner or do I have to manually loop through the array?

Answer 1

Are you looking for implode?

$array = array('lastname', 'email', 'phone');

$comma_separated = implode(",", $array);

echo $comma_separated; // lastname,email,phone

Answer 2

I can't test it right now, but can you check what happens when you implode() such an array? The _toString should be invoked.

Answer 3

A one-liner:

$a = array_map('strval', $a);

Enjoy! ;)

Answer 4

Not tested, but something like this should do it?

foreach($a as $key => $value) {
    $new_arr[$key]=$value->__toString();
}
$a=$new_arr;

Answer 5

Is there any reason why you can't do the following?

$a = array(
    $objA->__toString(),
    $objB->__toString(),
);