Language name search - code point buckets

<?php
/**
 * Script to create the language data in JSON format for ULS.
 *
 * Copyright (C) 2012 Alolita Sharma, Amir Aharoni, Arun Ganesh, Brandon Harris,
 * Niklas Laxström, Pau Giner, Santhosh Thottingal, Siebrand Mazeland and other
 * contributors. See CREDITS for a list.
 *
 * UniversalLanguageSelector is dual licensed GPLv2 or later and MIT. You don’t
 * have to do anything special to choose one license or the other and you don’t
 * have to notify anyone which license you are using. You are free to use
 * UniversalLanguageSelector in commercial projects as long as the copyright
 * header is left intact. See files GPL-LICENSE and MIT-LICENSE for details.
 *
 * @file
 * @ingroup Extensions
 * @licence GNU General Public Licence 2.0 or later
 * @licence MIT License
 */

// Standard boilerplate to define $IP
if (getenv('MW_INSTALL_PATH') !== false) {
    $IP = getenv('MW_INSTALL_PATH');
} else {
    $dir = __DIR__;
    $IP = "$dir/../../..";
}
require_once ("$IP/maintenance/commandLine.inc");
$languages = Language::fetchLanguageNames(null, 'all');
$all = array();
$buckets = array();
foreach ($languages as $code => $name) {
    $all[$code][strtolower($name)] = true;
    $langnames = LanguageNames::getNames($code, 0, 2);
    foreach ($langnames as $code => $name) {
        $all[$code][] = strtolower($name);
    }
}

foreach ($all as $code => $names) {
    //$all[$code] = array_keys($names);
    foreach ($names as $index => $name) {
        $bucket = getBucket($name);
        $buckets[$bucket][$name] = $code;
        //echo "$bucketId = ( $name => $code )\n";
    }
}

function getBucket($name) {
    $codepoint = getCodepoint($name);
    if ($codepoint < 1000) {
        $bucket = $codepoint;
    } else {
        $bucket = $codepoint % 1000;
    }
    if (!isset($buckets[$bucket])) {
        $buckets[$bucket] = array();
    }
    return $bucket;
}

function getCodepoint($str) {
    $unicode = array();
    $values = array();
    $lookingFor = 1;
    for ($i = 0; $i < strlen($str); $i++) {
        $thisValue = ord($str[$i]);
        if ($thisValue < 128)
            return $thisValue;
        else {
            if (count($values) == 0)
                $lookingFor = ($thisValue < 224) ? 2 : 3;
            $values[] = $thisValue;
            if (count($values) == $lookingFor) {
                $number = ($lookingFor == 3) ? (($values[0] % 16) * 4096) + (($values[1] % 64) * 64) + ($values[2] % 64) : (($values[0] % 32) * 64) + ($values[1] % 64);
                return $number;
            } // if
        }// if
    }
}
/*
foreach ($buckets as $bucketId => $names) {
    echo "Bucket $bucketId = " . count($buckets[$bucketId]) . "\n";
}*/
echo "Total Buckets  " . count($buckets) . "\n";
file_put_contents('langnames.ser', serialize($buckets));
$serializedBuckets = file_get_contents('langnames.ser');
$buckets = unserialize($serializedBuckets);
// ===========================
$start = microtime();
$search = "ഹിന്ദി";
$bucket = $buckets[getBucket($search)];
foreach ($bucket as $name => $code) {
    if ($name === $search) {
        echo "$search is language " . $code ;
        $end = microtime();
        echo " (Time taken: ". ($end-$start). "ms)\n";
    }
}