Detects arabic Language

LangDetectArabic.php

 <?php
function uniord($u) {
    // i formated this code from various online resources
    // Debendra Oli
    // https://github.com/debendraoli
    $k = mb_convert_encoding($u, 'UCS-2LE', 'UTF-8');
    $k1 = ord(substr($k, 0, 1));
    $k2 = ord(substr($k, 1, 1));
    return $k2 * 256 + $k1;
}
function is_arabic($str) {
    if(mb_detect_encoding($str) !== 'UTF-8') {
        $str = mb_convert_encoding($str,mb_detect_encoding($str),'UTF-8');
    }
    /*
    $str = str_split($str); <- this function is not mb safe, it splits by bytes, not characters. we cannot use it
    $str = preg_split('//u',$str); <- this function woulrd probably work fine but there was a bug reported in some php version so it pslits by bytes and not chars as well
    */
    preg_match_all('/.|\n/u', $str, $matches);
    $chars = $matches[0];
    $arabic_count = 0;
    $latin_count = 0;
    $total_count = 0;
    foreach($chars as $char) {
        //$pos = ord($char); we cant use that, its not binary safe 
        $pos = uniord($char);
        echo $char ." --> ".$pos.PHP_EOL;
        if($pos >= 1536 && $pos <= 1791) {
            $arabic_count++;
        } else if($pos > 123 && $pos < 123) {
            $latin_count++;
        }
        $total_count++;
    }
    if(($arabic_count/$total_count) > 0.6) {
        // 60% arabic chars, its probably arabic
        return true;
    }
    return false;
}
$arabic = is_arabic('عربية إخبارية تعمل على مدار اليوم. يمكنك مشاهدة بث القناة من خلال الموقع'); 
var_dump($arabic);
?>