[Solved] “\u00e1n” to “á” in PHP [closed]

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EDIT

Now, I’ve figured out the correct, working answer based on the article I found. Here is it:

function unicode2utf8($str) {
    $a=json_decode(str_replace("\n","<br>",'["'.$str.'"]'));
    return str_replace("<br>","\n",$a[0]);
}

PHP:

echo unicode2utf8("Tom\u00e1nsson\n Eriksen\n Gilverto\n");

Output:

Tománsson
 Eriksen
 Gilverto

ORIGINAL

I’ve found an article about the same problem here ( http://www.welefen.com/php-unicode-to-utf8.html )

The solution is the following function

function unicode2utf8($str){
    if(!$str) return $str;
    $decode = json_decode($str);
    if($decode) return $decode;
    $str="["" . $str . '"]';
    $decode = json_decode($str);
    if(count($decode) == 1){
            return $decode[0];
    }
    return $str;
}

I’ve tried it with 

echo unicode2utf8("\u00e1");

Output:

á

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solved “\u00e1n” to “á” in PHP [closed]