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/**
* 判断email格式是否正确
* @param $email
*/
function is_email($email) {
return strlen($email) > 6 && preg_match("/^[\w\-\.]+@[\w\-\.]+(\.\w+)+$/", $email);
}
/**
* iconv 编辑转换
*/
if (!function_exists('iconv')) {
function iconv($in_charset, $out_charset, $str) {
$in_charset = strtoupper($in_charset);
$out_charset = strtoupper($out_charset);
if (function_exists('mb_convert_encoding')) {
return mb_convert_encoding($str, $out_charset, $in_charset);
} else {
app_base::load_sys_func('iconv');
$in_charset = strtoupper($in_charset);
$out_charset = strtoupper($out_charset);
if ($in_charset == 'UTF-8' && ($out_charset == 'GBK' || $out_charset == 'GB2312')) {
return utf8_to_gbk($str);
}
if (($in_charset == 'GBK' || $in_charset == 'GB2312') && $out_charset == 'UTF-8') {
return gbk_to_utf8($str);
}
return $str;
}
}
}
/**
* 代码广告展示函数
* @param intval $siteid 所属站点
* @param intval $id 广告ID
* @return 返回广告代码
*/
function show_ad($siteid, $id) {
$siteid = intval($siteid);
$id = intval($id);
if(!$id || !$siteid) return false;
$p = app_base::load_model('poster_model');
$r = $p->get_one(array('spaceid'=>$id, 'siteid'=>$siteid), 'disabled, setting', 'id ASC');
if ($r['disabled']) return '';
if ($r['setting']) {
$c = string2array($r['setting']);
} else {
$r['code'] = '';
}
return $c['code'];
}
/**
* 获取当前的站点ID
*/
function get_siteid() {
static $siteid;
if (!empty($siteid)) return $siteid;
if (defined('IN_ADMIN')) {
if ($d = param::get_cookie('siteid')) {
$siteid = $d;
} else {
return '';
}
} else {
$data = getcache('sitelist', 'commons');
if(!is_array($data)) return '1';
$site_url = SITE_PROTOCOL.SITE_URL;
foreach ($data as $v) {
if ($v['url'] == $site_url.'/') $siteid = $v['siteid'];
}
}
if (empty($siteid)) $siteid = 1;
return $siteid;
}
/**
* 获取用户昵称
* 不传入userid取当前用户nickname,如果nickname为空取username
* 传入field，取用户$field字段信息
*/
function get_nickname($userid='', $field='') {
$return = '';
if(is_numeric($userid)) {
$member_db = app_base::load_model('member_model');
$memberinfo = $member_db->get_one(array('userid'=>$userid));
if(!empty($field) && $field != 'nickname' && isset($memberinfo[$field]) &&!empty($memberinfo[$field])) {
$return = $memberinfo[$field];
} else {
$return = isset($memberinfo['nickname']) && !empty($memberinfo['nickname']) ? $memberinfo['nickname'].'('.$memberinfo['username'].')' : $memberinfo['username'];
}
} else {
if (param::get_cookie('_nickname')) {
$return .= '('.param::get_cookie('_nickname').')';
} else {
$return .= '('.param::get_cookie('_username').')';
}
}
return $return;
}
/**
* 获取用户信息
* 不传入$field返回用户所有信息,
* 传入field，取用户$field字段信息
*/
function get_memberinfo($userid, $field='') {
if(!is_numeric($userid)) {
return false;
} else {
static $memberinfo;
if (!isset($memberinfo[$userid])) {
$member_db = app_base::load_model('member_model');
$memberinfo[$userid] = $member_db->get_one(array('userid'=>$userid));
}
if(!empty($field) && !empty($memberinfo[$userid][$field])) {
return $memberinfo[$userid][$field];
} else {
return $memberinfo[$userid];
}
}
}
/**
* 通过 username 值，获取用户所有信息
* 获取用户信息
* 不传入$field返回用户所有信息,
* 传入field，取用户$field字段信息
*/
function get_memberinfo_buyusername($username, $field='') {
if(empty($username)){return false;}
static $memberinfo;
if (!isset($memberinfo[$username])) {
$member_db = app_base::load_model('member_model');
$memberinfo[$username] = $member_db->get_one(array('username'=>$username));
}
if(!empty($field) && !empty($memberinfo[$username][$field])) {
return $memberinfo[$username][$field];
} else {
return $memberinfo[$username];
}
}
/**
* 调用关联菜单
* @param $linkageid 联动菜单id
* @param $id 生成联动菜单的样式id
* @param $defaultvalue 默认值
*/
function menu_linkage($linkageid = 0, $id = 'linkid', $defaultvalue = 0, $defaultlabel = array()) {
$linkageid = intval($linkageid);
$datas = array();
$datas = getcache($linkageid,'linkage');
$infos = $datas['data'];
if($datas['style']=='1') {
$title = $datas['title'];
$container = 'content'.create_randomnum(100, 999).date('is');
if(!defined('DIALOG_INIT_1')) {
define('DIALOG_INIT_1', 1);
$string .= '';
//TODO $string .= '';
}
if(!defined('LINKAGE_INIT_1')) {
define('LINKAGE_INIT_1', 1);
$string .= '';
}
$var_div = $defaultvalue && (ROUTE_A=='edit' || ROUTE_A=='account_manage_info' || ROUTE_A=='info_publish' || ROUTE_A=='orderinfo') ? menu_linkage_level($defaultvalue,$linkageid,$infos) : $datas['title'];
$var_input = $defaultvalue && (ROUTE_A=='edit' || ROUTE_A=='account_manage_info' || ROUTE_A=='info_publish') ? '' : '';
$string .= '
'.$var_div.'
'.$var_input.' ';
$string .= '';
} elseif($datas['style']=='2') {
if(!defined('LINKAGE_INIT_1')) {
define('LINKAGE_INIT_1', 1);
$string .= '';
}
$default_txt = '';
if($defaultvalue) {
$default_txt = menu_linkage_level($defaultvalue,$linkageid,$infos);
$default_txt = '["'.str_replace(' > ','","',$default_txt).'"]';
}
$string .= $defaultvalue && (ROUTE_A=='edit' || ROUTE_A=='account_manage_info' || ROUTE_A=='info_publish') ? '' : '';
for($i=1;$i<=$datas['setting']['level'];$i++) { $txt = isset($defaultlabel[$i]) ? $defaultlabel[$i] : '请选择'; $string .='' . $txt . '';
}
$string .= '';
} else {
$title = $defaultvalue ? $infos[$defaultvalue]['name'] : $datas['title'];
$colObj = create_randomnum(100, 999).date('is');
$string = '';
if(!defined('LINKAGE_INIT')) {
define('LINKAGE_INIT', 1);
$string .= '';
if(defined('IN_ADMIN')) {
$string .= '';
} else {
$string .= '';
}
}
$string .= '
';
$string .= '';
}
return $string;
}
/**
* 联动菜单层级
*/
function menu_linkage_level($linkageid,$keyid,$infos,$result=array()) {
if(array_key_exists($linkageid,$infos)) {
$result[]=$infos[$linkageid]['name'];
return menu_linkage_level($infos[$linkageid]['parentid'],$keyid,$infos,$result);
}
krsort($result);
return implode(' > ',$result);
}
/**
* 通过catid获取显示菜单完整结构
* @param $menuid 菜单ID
* @param $cache_file 菜单缓存文件名称
* @param $cache_path 缓存文件目录
* @param $key 取得缓存值的键值名称
* @param $parentkey 父级的ID
* @param $linkstring 链接字符
*/
function menu_level($menuid, $cache_file, $cache_path = 'commons', $key = 'catname', $parentkey = 'parentid', $linkstring = ' > ', $result=array()) {
$menu_arr = getcache($cache_file, $cache_path);
if (array_key_exists($menuid, $menu_arr)) {
$result[] = $menu_arr[$menuid][$key];
return menu_level($menu_arr[$menuid][$parentkey], $cache_file, $cache_path, $key, $parentkey, $linkstring, $result);
}
krsort($result);
return implode($linkstring, $result);
}
/**
* 通过id获取显示联动菜单
* @param $linkageid 联动菜单ID
* @param $keyid 菜单keyid
* @param $space 菜单间隔符
* @param $tyoe 1 返回间隔符链接，完整路径名称 3 返回完整路径数组，2返回当前联动菜单名称，4 直接返回ID
* @param $result 递归使用字段1
* @param $infos 递归使用字段2
*/
function get_linkage($linkageid, $keyid, $space = '>', $type = 1, $result = array(), $infos = array()) {
if($space=='' || !isset($space))$space = '>';
if(!$infos) {
$datas = getcache($keyid,'linkage');
$infos = $datas['data'];
}
if($type == 1 || $type == 3 || $type == 4) {
if(array_key_exists($linkageid,$infos)) {
$result[]= ($type == 1) ? $infos[$linkageid]['name'] : (($type == 4) ? $linkageid :$infos[$linkageid]);
return get_linkage($infos[$linkageid]['parentid'], $keyid, $space, $type, $result, $infos);
} else {
if(count($result)>0) {
krsort($result);
if($type == 1 || $type == 4) $result = implode($space,$result);
return $result;
} else {
return $result;
}
}
} else {
return $infos[$linkageid]['name'];
}
}
/**
* IE浏览器判断
*/
function is_ie() {
$useragent = strtolower($_SERVER['HTTP_USER_AGENT']);
if((strpos($useragent, 'opera') !== false) || (strpos($useragent, 'konqueror') !== false)) return false;
if(strpos($useragent, 'msie ') !== false) return true;
return false;
}
/**
* 文件下载
* @param $filepath 文件路径
* @param $filename 文件名称
*/
function file_down($filepath, $filename = '') {
if(!$filename) $filename = basename($filepath);
if(is_ie()) $filename = rawurlencode($filename);
$filetype = fileext($filename);
$filesize = sprintf("%u", filesize($filepath));
if(ob_get_length() !== false) @ob_end_clean();
header('Pragma: public');
header('Last-Modified: '.gmdate('D, d M Y H:i:s') . ' GMT');
header('Cache-Control: no-store, no-cache, must-revalidate');
header('Cache-Control: pre-check=0, post-check=0, max-age=0');
header('Content-Transfer-Encoding: binary');
header('Content-Encoding: none');
header('Content-type: '.$filetype);
header('Content-Disposition: attachment; filename="'.$filename.'"');
header('Content-length: '.$filesize);
readfile($filepath);
exit;
}
/**
* 判断字符串是否为utf8编码，英文和半角字符返回ture
* @param $string
* @return bool
*/
function is_utf8($string) {
return preg_match('%^(?:
[\x09\x0A\x0D\x20-\x7E] # ASCII
| [\xC2-\xDF][\x80-\xBF] # non-overlong 2-byte
| \xE0[\xA0-\xBF][\x80-\xBF] # excluding overlongs
| [\xE1-\xEC\xEE\xEF][\x80-\xBF]{2} # straight 3-byte
| \xED[\x80-\x9F][\x80-\xBF] # excluding surrogates
| \xF0[\x90-\xBF][\x80-\xBF]{2} # planes 1-3
| [\xF1-\xF3][\x80-\xBF]{3} # planes 4-15
| \xF4[\x80-\x8F][\x80-\xBF]{2} # plane 16
)*$%xs', $string);
}
/**
* 组装生成ID号
* @param $modules 模块名
* @param $contentid 内容ID
* @param $siteid 站点ID
*/
function id_encode($modules,$contentid, $siteid) {
return urlencode($modules.'-'.$contentid.'-'.$siteid);
}
/**
* 解析ID
* @param $id 评论ID
*/
function id_decode($id) {
return explode('-', $id);
}
/**
* 对用户的密码进行加密
* @param $password
* @param $encrypt //传入加密串，在修改密码时做认证
* @return array/password
*/
function password($password, $encrypt='') {
$pwd = array();
$pwd['encrypt'] = $encrypt ? $encrypt : create_randomstr();
$pwd['password'] = md5(md5(trim($password)).$pwd['encrypt']);
return $encrypt ? $pwd['password'] : $pwd;
}
/**
* 生成随机字符串
* @param string $lenth 长度
* @return string 字符串
*/
function create_randomstr($lenth = 6) {
//openssl_random_pseudo_bytes
$fp = @fopen('/dev/urandom','rb');
$pr_bits = '';
if ($fp !== FALSE) {
$pr_bits .= @fread($fp,$lenth/2);
@fclose($fp);
}
return bin2hex($pr_bits);
//return random($lenth, '123456789abcdefghijklmnpqrstuvwxyzABCDEFGHIJKLMNPQRSTUVWXYZ');
}
/**
* 生成随机数
* @param string $lenth 长度
* @return string 字符串
*/
function create_randomnum($min,$max) {
//openssl_random_pseudo_bytes
$difference = $max-$min;
$bytesNeeded = ceil($difference/256);
$fp = @fopen('/dev/urandom','rb');
if ($fp !== FALSE) {
$randomBytes = @fread($fp,$bytesNeeded);
@fclose($fp);
}
$sum = 0;
for ($a = 0; $a < $bytesNeeded; $a++){ $sum += ord($randomBytes[$a]); } $sum = $sum % ($difference); return $sum + $min; //return random($lenth, '123456789abcdefghijklmnpqrstuvwxyzABCDEFGHIJKLMNPQRSTUVWXYZ'); } 以上就是关于“php常用自定义函数_判断email格式是否正确_iconv 编辑转换_联动菜单层级”这篇文章的内容，希望分享的内容对大家有帮助，若想了解更多相关的知识内容，请关注3搜网技术频道。
