#删除不为空的目录
function rrmdir($dir) { if (is_dir($dir)) { $objects = scandir($dir); foreach ($objects as $object) { if ($object != "." && $object != "..") { if (filetype($dir."/".$object) == "dir") rrmdir($dir."/".$object); else unlink($dir."/".$object);} } reset($objects); rmdir($dir); } }

#批量创建目录 function MakeDirectory($dir, $mode = 0755){umask(0);if (is_dir($dir) || @mkdir($dir,$mode)) return TRUE;if (!MakeDirectory(dirname($dir),$mode)) return FALSE;return @mkdir($dir,$mode);}

#批量创建目录
function recursive_mkdir($path, $mode = 0777) {$dirs = explode(DIRECTORY_SEPARATOR , $path);$count = count($dirs);$path = substr($path, 0, 1) === DIRECTORY_SEPARATOR ?  DIRECTORY_SEPARATOR : '.';umask(0);for ($i = 0; $i < $count; ++$i) {$path .= DIRECTORY_SEPARATOR . $dirs[$i];if (!is_dir($path) && !mkdir($path, $mode)) {return false;}}return true;}

/*** 多进程同时写入一个文件 不支持NFS文件系统* @param string $filename* @param string $str*/
function write($filename, $str) { $f = fopen ( $filename, "a" ); if (flock ( $f, LOCK_EX )) { fwrite ( $f, $str ); //sleep(5); flock ( $f, LOCK_UN ); } fclose ( $f ); } write("/home/v_jksong/lock.data", "sjk");

/*** 判断是否是合法整形 加强版* @param unknown_type $a* @return boolean*/
function is_intval($a) {return ((string)$a === (string)(int)$a);
}
// true for ("123", "0", "-1", 0, 11, 9011, 00, 0x12, true)
// false for (" ", "", 1.1, "123.1", "00", "0x123", "123a", "ada", "--1", "999999999999999999999999999999999", false, null, '1 ')

/*** 检测一维数组是否相等，如果(string)$v1 === (string)$v2 则为相等* @param unknown_type $a* @param unknown_type $b* @param unknown_type $assoc* @return boolean*/
function array_equal($a, $b, $assoc = true)
{$func = 'array_diff';if($assoc === true){$func = 'array_diff_assoc';}$diff_a_b = $func($a, $b);$diff_b_a = $func($b, $a);if(empty($diff_a_b) && empty($diff_b_a)){return true;}return false;
}

//解析 js中escap编码的字符串 
function js_unescape($str)
{$ret = '';$len = strlen($str);for ($i = 0; $i < $len; $i++) {if ($str[$i] == '%' && $str[$i+1] == 'u') {$val = hexdec(substr($str, $i+2, 4));if ($val < 0x7f) $ret .= chr($val);else if($val < 0x800) $ret .= chr(0xc0|($val>>6)).chr(0x80|($val&0x3f));else $ret .= chr(0xe0|($val>>12)).chr(0x80|(($val>>6)&0x3f)).chr(0x80|($val&0x3f));$i += 5;} else if ($str[$i] == '%') {$ret .= urldecode(substr($str, $i, 3));$i += 2;} else $ret .= $str[$i];}return $ret;
}echo js_unescape('%u4E03%u5915%u628A%u59B9%u5FC5%u5907%20%u56DB%u6B3ESUV%u6700%u9AD8%u964D6.5%u4E07_%u5927%u7CA4%u7F51_%u817E%u8BAF%u7F51');

/*** 获取ip地址，注意服务器是双网卡的情况* @param unknown_type $dest* @param unknown_type $port* @return unknown*/
function my_ip($dest='64.0.0.0', $port=80)
{$socket = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);socket_connect($socket, $dest, $port);socket_getsockname($socket, $addr, $port);socket_close($socket);return $addr;
}

/*** 用以取代file_get_contents函数，可以设置主机名以及超时时间等设置* @param $url 主机名* @param $path 路径* @param $port=80 端口* @param $timeout=10 超时设置，单位秒* @return integer/string -1:连接不上主机 -2:发送请求串失败*/
function get_file_contents($url,$path,$port=80,$timeout=10)
{$errno=null;$errstr=null;$fp=fsockopen($url,$port);if(!$fp){return -1;}$command='GET '.$path.' HTTP/1.1'."\r\n";$command.='Accept: */*'."\r\n";$command.='Accept-Language: zh-cn'."\r\n";$command.='Host: '.$url."\r\n";$command.='Connection: Close'."\r\n";$command.="\r\n";$flag=fwrite($fp,$command);if(!$flag){fclose($fp);return -2;}stream_set_timeout($fp,$timeout);$tmp_ret_str="";$flag=false;while(!feof($fp)){$tmp_cur_line=fgets($fp,2048);if($flag){$tmp_ret_str.=$tmp_cur_line;}if($tmp_cur_line=="\r\n"){$flag=true;}}fclose($fp);return $tmp_ret_str;
}

/*** URL取得相应数据的函数** @param string $url 完整URL* @param int $timeout 超时时间* @return string/errorno*/
function get_url_contents($url,$timeout=10)
{$command='wget --timeout '.$timeout.' -q -O- "'.$url.'"';$tmp_ret_str='';$fp=popen($command,"r");if($fp==false){return -1;}while(!feof($fp)){$tmp_ret_str.=fgets($fp);}pclose($fp);return $tmp_ret_str;
}

/*** 获取当前内存情况
* @return string
*/
function memory_usage($isEcho = 0)
{$memUsage = memory_get_usage();$unitArr = array("B", "K", "M", "G");$used =  @round($memUsage/pow(1024, ($i=floor(log($memUsage, 1024)))), 2)."".($unitArr[$i]);if($isEcho){ee($used);}return $used;
}