/** * 获取当前页面完整URL地址 * * @author 52php.cnblogs.com */function http_get_page_url(){	global $_G;	if (empty($_G['pageUrl']))	{		$protocal = isset($_SERVER['SERVER_PORT']) && $_SERVER['SERVER_PORT'] == '443' ? 'https://' : 'http://';		$phpSelf = $_SERVER['PHP_SELF'] ? string_safe_replace($_SERVER['PHP_SELF']) : string_safe_replace($_SERVER['SCRIPT_NAME']);		$pathInfo = isset($_SERVER['PATH_INFO']) ? string_safe_replace($_SERVER['PATH_INFO']) : '';		$relateUrl = isset($_SERVER['REQUEST_URI']) ? string_safe_replace($_SERVER['REQUEST_URI']) : $phpSelf . (isset($_SERVER['QUERY_STRING']) ? '?' . string_safe_replace($_SERVER['QUERY_STRING']) : $pathInfo);		$_G['pageUrl'] = trim($protocal . (isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : '') . $relateUrl, '/');	}	// 删除 backUrl 参数	$_G['pageUrl'] = preg_replace('/&backUrl=[^&]+/', '', $_G['pageUrl']);	return $_G['pageUrl'];}

/** * 安全过滤函数 * * @param string $string * @return string */function string_safe_replace($string){	$string = str_replace('%20', '', $string);	$string = str_replace('%27', '', $string);	$string = str_replace('%2527', '', $string);	$string = str_replace('*', '', $string);	$string = str_replace('"', '"', $string);	$string = str_replace("'", '', $string);	$string = str_replace('"', '', $string);	$string = str_replace(';', '', $string);	$string = str_replace('<', '<', $string);	$string = str_replace('>', '>', $string);	$string = str_replace("{", '', $string);	$string = str_replace('}', '', $string);	$string = str_replace('\\', '', $string);	return $string;}

 

 

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