<?php

/** common libs  **/

//应用版本比较
function updateAppVersion($appVersion1, $appVersion2)
{
    $releaseVersion = explode(".",$appVersion1);
    $deviceVersion = explode(".",$appVersion2);

    $len = count($deviceVersion);
    if(count($releaseVersion)>count($deviceVersion))
    {
        $len = count($releaseVersion);
    }

    for($i = 0;$i<$len;$i++){
        echo "[i=".$i."][r=".$releaseVersion[$i]."][d=".$deviceVersion[$i]."]";
        if(!isset($releaseVersion[$i])){
            return false;
        }
        else if(!isset($deviceVersion[$i])){
            return true;
        }
        else if($releaseVersion[$i]>$deviceVersion[$i]){
            return true;
        }
        else if($releaseVersion[$i]<$deviceVersion[$i]){
            return false;
        }
    }
    return false;
}


/** Array helper **/

function array_except($array, $key) 
{
	return array_diff_key($array, array_flip((array) $key));
}

if (! function_exists('objectToArray') )
{
    function objectToArray($d) 
    {
        if( is_object($d) ) 
        {
            $d = get_object_vars($d);
        }
        if( is_array($d) )
        {
            return array_map(__FUNCTION__, $d);
        } else
        {
            return $d;
        }
    }   
}


/* String Helper */

function start_with($haystack, $needle)
{
	return strpos($haystack, $needle) === 0;
}

function ends_with($haystack, $needle)
{
	return $needle == substr($haystack, strlen($haystack) - strlen($needle));
}


/* Common Helper */

function with($object)	
{
	return $object;
}

function value($value)
{
	return $object instanceof Closure ? $value() : $value;
}