Question

I have problem that it cant detect every word in string. similar to filter or tag or category or sort of..

$title = "What iS YouR NAME?";

$english = Array( 'Name', 'Vacation' );

if(in_array(strtolower($title),$english)){
    $language = 'english';
} else if(in_array(strtolower($title),$france)){
    $language = 'france';
} else if(in_array(strtolower($title),$spanish)){
    $language = 'spanish';
} else if(in_array(strtolower($title),$chinese)){
    $language = 'chinese';
} else if(in_array(strtolower($title),$japanese)){
    $language = 'japanese';
} else {
    $language = null;
}

output is null.. =/

Answer 1

No real problem here… the string in $title isn’t in any of the arrays you are testing with, even in lower case.

Try testing every word in each language tab against the string instead.

$english = Array( 'Name', 'Vacation' );
$languages = array('english'=>$english,
                   'france'=>$france,
                   'spanish'=>$spanish,
                   'chinese'=>$chinese,
                   'japenese'=>$japenese);

while($line = mysql_fetch_assoc($result)) {
    $title = $line['title'];
    //$lower_title = strtolower($title); stristr() instead.

    $language_found = false;

    foreach($languages as $language_name=>$language) {
        idx = 0;
        while(($language_found === false) && idx < count($language)) {
            $word = $language[$idx];
            if(stristr($title, $word) !== false) {
                $language_found = $language_name;
            }
            $idx++;
        }
    }

    // got language name or false...
}

You could also breaking the string using explode of course and testing each word in the created array for each language.