<?php
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include_once(__DIR__."/error.inc.php");
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class Utils {
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static public function notEmptyStr($var)
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{
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return is_string($var) && ($var != "");
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}
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static public function checkNotEmptyStr($var, $name)
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{
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if (!self::notEmptyStr($var))
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throw new ParameterError($name . " can not be empty string");
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}
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static public function checkIsUInt($var, $name)
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{
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if (!(is_int($var) && $var >= 0))
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throw new ParameterError($name . " need unsigned int");
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}
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static public function checkNotEmptyArray($var, $name)
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{
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if (!is_array($var) || count($var) == 0) {
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throw new ParameterError($name . " can not be empty array");
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}
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}
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static public function setIfNotNull($var, $name, &$args)
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{
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if (!is_null($var)) {
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$args[$name] = $var;
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}
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}
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static public function arrayGet($array, $key, $default=null)
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{
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if (array_key_exists($key, $array))
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return $array[$key];
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return $default;
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}
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/**
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* 数组 转 对象
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*
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* @param array $arr 数组
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* @return object
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*/
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function Array2Object($arr) {
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if (gettype($arr) != 'array') {
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return;
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}
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foreach ($arr as $k => $v) {
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if (gettype($v) == 'array' || getType($v) == 'object') {
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$arr[$k] = (object)self::Array2Object($v);
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}
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}
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return (object)$arr;
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}
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/**
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* 对象 转 数组
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*
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* @param object $obj 对象
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* @return array
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*/
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function Object2Array($object) {
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if (is_object($object) || is_array($object)) {
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$array = array();
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foreach ($object as $key => $value) {
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if ($value == null) continue;
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$array[$key] = self::Object2Array($value);
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}
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return $array;
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}
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else {
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return $object;
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}
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}
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//数组转XML
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function Array2Xml($rootName, $arr)
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{
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$xml = "<".$rootName.">";
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foreach ($arr as $key=>$val) {
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if (is_numeric($val)) {
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$xml.="<".$key.">".$val."</".$key.">";
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} else {
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$xml.="<".$key."><![CDATA[".$val."]]></".$key.">";
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}
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}
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$xml.="</".$rootName.">";
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return $xml;
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}
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//将XML转为array
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function Xml2Array($xml)
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{
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//禁止引用外部xml实体
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libxml_disable_entity_loader(true);
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$values = json_decode(json_encode(simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA)), true);
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return $values;
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}
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} // class Utils
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