common.php

<?php

include_once './config.php';
include_once './UtilityDB.php';
include_once './WebService.php';

define("MSG_INVALID_REQUEST_FORMAT", "Invalid request format.");
define("MSG_FATURE_NOT_SUPPORTED", "Feature not supported.");

//Generate Text Line Breaks
function GTLB($text){
    return mb_ereg_replace("\n", "<br>", $text);
}

//Create Short Text
function ST($text, $maxlength){
    if(mb_strlen($text, 'utf8')<=$maxlength){
        return $text;
    }
    return mb_substr($text, 0, $maxlength-3, 'utf8')."...";
}

/**
 * @brief get safe int value
 */
function safeGetInt($value, $defaultValue = 0)
{
    if(isset($value) && is_numeric($value)){
        return intval($value);
    }
    return $defaultValue;
}

/**
 * @brief get safe int array value
 */
function safeGetIntArray($values, $defaultValue)
{
    if(isset($values) && is_array($values)){
        $finalValues = array();
        foreach ($values as $value)
        {
            array_push($finalValues, intval($value));
        }
        return $finalValues;
    }
    
    return $defaultValue;
}

/**
 * @brief get safe string value
 */
function safeGetString($value, $defaultValue = 0)
{
    if(isset($value)){
        return $value;
    }
    return $defaultValue;
}

/**
 * @brief get cookie for key or empty string if cookie doesn't exist
 */
function safeGetCookie($key, $defaultValue = "")
{
    if(isset($_COOKIE[$key])){
        return $_COOKIE[$key];
    }
    return $defaultValue;
}

/**
 * @brief get session 
 */
function safeGetSession($key, $defaultValue = "")
{
    if(isset($_SESSION[$key])){
        return $_SESSION[$key];
    }
    return $defaultValue;
}

/**
 * @brief generate random code
 */
function genRandCode($length)
{
    $letters = "ABCDEFGHIJKLMNPQRSTXYZ12345678";
    $code = ""; 
    for ($i = 0; $i <$length; $i++) 
    { 
        $iletter = rand(0,  strlen($letters)-1);
        $code .= substr($letters, $iletter, 1); 
    }
    return $code;
}

/**
 * @brief generate random number
 */
function genRandNumber($length)
{
    $letters = "12345678";
    $code = ""; 
    for ($i = 0; $i <$length; $i++) 
    { 
        $iletter = rand(0,  strlen($letters)-1);
        $code .= substr($letters, $iletter, 1); 
    }
    return $code;
}

/**
 * @brief check if main text contains search text
 */
function HS($mainText, $searchText)
{
    return (mb_strpos($mainText, $searchText)!==false);
}

/**
 * @brief check if main text contains search text (case sensitive)
 */
function HSI($mainText, $searchText)
{
    return (mb_stripos($mainText, $searchText)!==false);
}

/**
 * @brief check if main text starts with search text
 */
function SW($mainText, $searchText)
{
    return (mb_strpos($mainText, $searchText)===0);
}

/**
 * @brief check if main text starts with search text (case sensitive)
 */
function SWI($mainText, $searchText)
{
    return (mb_stripos($mainText, $searchText)===0);
}

/**
 * @brief convert regular time into readable one 
 */
function time2text($timestamp)
{
    $totalSeconds = mktime() - $timestamp;
    $nHours = (int)($totalSeconds/3600);
    $nMinutes = (int)(($totalSeconds%3600)/60);
    $nSeconds = (int)($totalSeconds%60);
    if($nHours==0 && $nMinutes==0 && $nSeconds==0){
        return KW("write now");
    }
    else if($nHours==0 && $nMinutes==0){
        return "".$nSeconds." ".KW("seconds ago");
    }
    else if($nHours==0){
        return "".$nMinutes." ".KW("minutes ago");
    }
    else if($nHours<24){
        return "".$nHours." ".KW("hours ago");
    }

    return date("F j, Y, g:i a", (int)$timestamp);
}

/**
 * @brief find and replace string
 */
function replace($text, $oldpart, $newpart){
    return mb_ereg_replace($oldpart, $newpart, $text);
}

function server2ClientTime($time)
{
    return $time - 60 * safeGetSession("timeZoneOffset");
}

function client2ServerTime($time)
{
    return $time + 60 * safeGetSession("timeZoneOffset");
}

function reverse($sItems, $delimiter = ",")
{
    $items = explode(",", $sItems);
    $sItems = "";
    for($i=count($items)-1;$i>=0;$i--)
    {
        $sItems = $sItems.$items[$i].(($i==0)?"":",");
    }
    return $sItems;
}

function isEmptyObject($object)
{
    $vars = get_object_vars($object);
    foreach($vars as $key=>$value)
    {
        if(!empty($value))
            return false;
    }
    return true;
}

/**
 * @brief hash the password
 */
function hashPass($password){
    return hash("md5", $password);
}

/**
 * @brief convert rgba color 'rgba(..,..,..,..)' into hex #...... 
 */
function rgbaToHex($string){
	//rgba(240, 201, 201, 0.42)
	$string = str_replace('rgba(', '', $string);
	$string = str_replace(')', '', $string);
	$arr = explode(',', $string);
	$output = array();
	$i = 0;
	for($i = 0; $i<3; $i++){
		$output[$i] = dechex((int)$arr[$i]);
		if(strlen($output[$i])==1)
		{
			$output[$i] .= '0';
		}
	}
	$alpha = $arr[3];
	$hexCol = implode('', $output);
	
	$out = array();
	$out[0] = $hexCol;
    $out[1] = $alpha;
    $out[2] = dechex((int)($alpha * 0xFF));
	return $out;
}

define("MAIN_LETERS", " ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789\r\n\.\,\?\!\-\*\+\=\/\\\_\$\#\@\{\}\[\]\(\)\|\<\>\&\^\%ابتثجحخدذرزسشصضطظعغفقكلمنهويئؤءآأإةى");
define("SEARCH_LETERS", "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789ابتثجحخدذرزسشصضطظعغفقكلمنهويئؤءآأإةى");
define("SIMILER_LETERS_ALF", "أإآ");

function cleanHTML($content)
{
    $text = strip_tags($content);
    $text = html_entity_decode($text);
    $text = mb_ereg_replace("/[[:blank:]]+/"," ", $text);
    return mb_trim($text, " ");
}

function getSearchText($text)
{
    $text = mb_ereg_replace("[^".MAIN_LETERS."]", "", $text);
    $text = mb_ereg_replace("[^".SEARCH_LETERS."]", " ", $text);
    $text = mb_ereg_replace("[".SIMILER_LETERS_ALF."]","ا",$text);
    $text = mb_ereg_replace("/[[:blank:]]+/"," ", $text);
    return mb_trim($text, " ");
}

function getSearchTextWithoutNums($text)
{
    $text = mb_ereg_replace("[^".MAIN_LETERS."]", "", $text);
    $text = mb_ereg_replace("[^".SEARCH_LETERS."]", " ", $text);
    $text = mb_ereg_replace("[".SIMILER_LETERS_ALF."]","ا",$text);
    $text = mb_ereg_replace("[1234567890]","",$text);
    $text = mb_ereg_replace("/[[:blank:]]+/"," ", $text);
    return mb_trim($text, " ");
}

function echoTime($time, $msg = "")
{
    if($time>0)
    {
        $duration = (int)(1000.0 * microtime(true) - $time);
        echo "<p>$msg : $duration ms </p>";
    }
    $time = 1000.0 * microtime(true);
    return (int)$time;
}

function mb_trim($string, $trim_chars){
    return preg_replace('/^['.$trim_chars.']*(?U)(.*)['.$trim_chars.']*$/u', '\\1',$string);
}

function isMobileBrowser () {
    $user_agent = strtolower ( $_SERVER['HTTP_USER_AGENT'] );
    return preg_match("/(android|avantgo|blackberry|bolt|boost|cricket|docomo|fone|hiptop|mini|mobi|palm|phone|pie|tablet|up\.browser|up\.link|webos|wos)/i", $user_agent);
}

function getFiles($dir, $extFilter) 
{
    $filesPaths = array();
    $dir=$dir."/";
    $dir = str_replace("\\", "/", $dir);
    $dir = str_replace("//", "/", $dir);

    $dh = opendir($dir);
    if ($dh) 
    {
        while (($file = readdir($dh)) !== false) 
        {
            if($file=="."||$file=="..")continue;
            $filePath = $dir.$file;
            $path_parts = pathinfo($filePath);

            if(is_dir($filePath))
                $filesPaths = array_merge($filesPaths, getFiles($filePath, $extFilter));
            else if($extFilter=="*" || (isset($path_parts['extension']) && strstr($extFilter,".".$path_parts['extension'])))
                $filesPaths[] = $filePath;
        }
        closedir($dh);
    }
    return $filesPaths;
}

function generateSocial($url)
{
    ?>
    <div id="socialdiv" style="text-align: center;"></div>
    <script>
        $('#socialdiv').share({
            networks: ['facebook','googleplus','twitter','email'],
            urlToShare: '<?=$url?>'
        });
    </script>   
    <?php
}

function shortText($text, $limit = 23) {
    if(mb_strlen($text)<($limit+3))return $text;
    return mb_substr($text, 0, $limit, 'utf8')."...";
}