<?php

namespace utiliy;

include_once "../../global.inc.php";
include_once PATH_UTILITTY . "/StringManager.php";

/**
 * The ArrayManager provides some array-methods
 * @author stubbfel
 * @since 26.06.2013
 */
class ArrayManager {

    /**
     * Method remove all empty itmes of an array
     * @param array $queryArgs
     * @return array
     */
    public static function removeEmptyItmes($array) {
        foreach ($array as $key => $value) {
            if (empty($value)) {
                unset($array[$key]);
            }
        }
        return $array;
    }

    /**
     * Method convert an array to a where-string like $fieldname = $array[i] $operator
     * @param array $pidList
     * @return string
     */
    public static function toSqlWhereString($array, $operator = "", $fieldname = "") {
        $arrayStr = StringManager::$emptyString;
        foreach ($array as $value) {
            $arrayStr .= $fieldname . StringManager::$quotes . $value . StringManager::$quotes . $operator;
        }
        $result = substr($arrayStr, 0, strlen($arrayStr) - strlen($operator));
        return $result;
    }

    /**
     * Method check if  all items of the array are only digits and < PHP_INT_MAX
     * @param array $poly
     * @return boolean
     */
    public static function validIntList($list) {
        foreach ($list as $value) {

            if (!ctype_digit($value) || PHP_INT_MAX < $value) {
                return FALSE;
            }
        }
        return TRUE;
    }

    /**
     * Method check if  all items of the array are only digits and < PHP_INT_MAX
     * @param array $poly
     * @return boolean
     */
    public static function validAlphaNumList($list) {
        foreach ($list as $value) {

            if (!ctype_alnum($value) || !\utiliy\StringManager::validSQLString($value)) {
                return FALSE;
            }
        }
        return TRUE;
    }

}

?>