PHP - UTF8 编码的 json 上的 strpos()？

Question

I have the JSON-output Kirchhellener Stra\ße .. the \ß is a UTF8-encoded german letter ß ..I want to search the output for the word Straße and replace it, but I can't figure out how?

$street = json_decode($bit->long_name); // here the `Kirchhellener Stra\u00dfe` is put into $street

$check_strasse1 = strpos($street, 'Straße');
$check_strasse2 = strpos($street, 'Stra\u00dfe');

if($check_strasse1 !== false || $check_strasse2 !== false) {    
    echo "oki";             
    $street = str_replace('Strasse', 'Str.', $street);
    $street = str_replace('Stra\u00dfe', 'Str.', $street);
} else {    
    echo "nope";        
}

How can I detect it the $street has Straße in it?

Answer 1

To work with UTF-8 encoded strings in PHP, you must use mbstring extension. In this case, the function you're looking for is mb_strpos() .

Or, in this case, you can just use preg_replace() :

preg_replace('/Straße/u', 'Str.', $street);

The u modifier ensures that UTF-8 encoding is used when matching the string. You don't need to check if the string is present, because if it's not, it will not be replaced. You can also skip the \ß variant, as json_decode() will convert this literal into the proper UTF-8 character.