Split strings with full name into just first name - php

Question

I know this question has been answered in here before, but the different functions suggested in the other questions have not been to any help for me - and I´ve tried some few.
I have for example this string with three names that outputs from my database every time it's being loaded:
$string = "Joe Hansen, Carl Clarkson Clinton, Miranda Cobweb Fisher-Caine";
I only want it to output:
$string = "Joe, Carl, Miranda";
I tried this one: click - but it only outputs the first name in some situations and not every time. Is there a easy solution to this one? I also tried explode and implode but did not get that to work either.

Answer 1

Something like this?
<?php
$string = "Joe Hansen, Carl Clarkson Clinton, Miranda Cobweb Fisher-Caine";
$names = explode(",", $string);
$firstNames = array_map(function($name) {
$split = explode(" ", trim($name));
return reset($split);
}, $names);
echo implode(", ", $firstNames);

Answer 2

First you can explode() string with comma , separated. Then go through the loop.
and get first name in the array with substr() and then implode with ,.
$string = "Joe Hansen, Carl Clarkson Clinton, Miranda Cobweb Fisher-Caine";
$names = explode(",", $string);
$firstNames = array();
foreach($names as $name){
$firstNames[] = substr(trim($name), 0, strpos(trim($name), " "));
}
echo implode(", ", $firstNames);

Answer 3

First explode the string on ,, loop through the array, then push the elements in a new array and implode it.
$string = "Joe Hansen, Carl Clarkson Clinton, Miranda Cobweb Fisher-Caine";
$new_string=explode(",",$string);
$slipt_arr=explode(" ",$new_string);
$final_arr=array();
foreach ($new_string as $value)
{
$elements=array_filter(explode(" ",$value));
array_push($final_arr,current($elements));
}
echo implode(", ",$final_arr);