├── ip2region.db ├── test.php ├── composer.json ├── README.md ├── Ip2Region.php └── LICENSE.md /ip2region.db: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/gytai/ip2region/master/ip2region.db -------------------------------------------------------------------------------- /test.php: -------------------------------------------------------------------------------- 1 | btreeSearch($ip); 9 | 10 | var_export($info, true); 11 | 12 | // array ( 13 | // 'city_id' => 2163, 14 | // 'region' => '中国|华南|广东省|深圳市|鹏博士', 15 | // ) -------------------------------------------------------------------------------- /composer.json: -------------------------------------------------------------------------------- 1 | { 2 | "type": "library", 3 | "name": "zoujingli/ip2region", 4 | "homepage": "https://github.com/zoujingli/Ip2Region", 5 | "description": "Ip2Region", 6 | "license": "Apache 2.0", 7 | "keywords": [ 8 | "Ip2Region" 9 | ], 10 | "require": { 11 | "php": ">=5.3.3" 12 | }, 13 | "autoload": { 14 | "classmap": [ 15 | "Ip2Region.php" 16 | ] 17 | } 18 | } 19 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | [![Latest Stable Version](https://poser.pugx.org/zoujingli/ip2region/v/stable)](https://packagist.org/packages/zoujingli/ip2region) 2 | [![Total Downloads](https://poser.pugx.org/zoujingli/ip2region/downloads)](https://packagist.org/packages/zoujingli/ip2region) 3 | [![Latest Unstable Version](https://poser.pugx.org/zoujingli/ip2region/v/unstable)](https://packagist.org/packages/zoujingli/ip2region) 4 | [![License](https://poser.pugx.org/zoujingli/ip2region/license)](https://packagist.org/packages/zoujingli/ip2region) 5 | 6 | 7 | 本库基于 [ip2region](https://github.com/lionsoul2014/ip2region) ，简单整合方便使用`composer`来管理。 8 | -- 9 | 10 | [ip2region](https://github.com/lionsoul2014/ip2region) - 最自由的ip地址查询库，ip到地区的映射库，提供Binary,B树和纯内存三种查询算法，妈妈再也不用担心我的ip地址定位。 11 | 12 | ### 1. 99.9%准确率，定时更新： 13 | 14 | 数据聚合了一些知名ip到地名查询提供商的数据，这些是他们官方的的准确率，经测试着实比纯真啥的准确多了。
15 | 每次聚合一下数据需要1-2天，会不定时更新。 16 | 17 | ### 2. 标准化的数据格式： 18 | 19 | 每条ip数据段都固定了格式：_城市Id|国家|区域|省份|城市|ISP_ 20 | 21 | 只有中国的数据精确到了城市，其他国家只能定位到国家，后前的选项全部是0，已经包含了全部你能查到的大大小小的国家。 22 | （请忽略前面的城市Id，个人项目需求） 23 | 24 | ### 3. 体积小： 25 | 26 | 数据库文件ip2region.db只有1.5M 27 | 28 | ### Composer 安装 29 | 30 | ``` 31 | composer require zoujingli/ip2region 32 | ``` 33 | 34 | ### ip2region 使用 35 | ```php 36 | 37 | $ip2region = new Ip2Region(); 38 | 39 | $ip = '101.105.35.57'; 40 | 41 | $info = $ip2region->btreeSearch($ip); 42 | 43 | var_export($info, true); 44 | 45 | // array ( 46 | // 'city_id' => 2163, 47 | // 'region' => '中国|华南|广东省|深圳市|鹏博士', 48 | // ) 49 | 50 | ``` 51 | -------------------------------------------------------------------------------- /Ip2Region.php: -------------------------------------------------------------------------------- 1 | 6 | * @date 2015-10-29 7 | */ 8 | 9 | defined('INDEX_BLOCK_LENGTH') or define('INDEX_BLOCK_LENGTH', 12); 10 | defined('TOTAL_HEADER_LENGTH') or define('TOTAL_HEADER_LENGTH', 4096); 11 | 12 | class Ip2Region { 13 | /** 14 | * db file handler 15 | */ 16 | private $dbFileHandler = NULL; 17 | 18 | /** 19 | * header block info 20 | */ 21 | private $HeaderSip = NULL; 22 | private $HeaderPtr = NULL; 23 | private $headerLen = 0; 24 | 25 | /** 26 | * super block index info 27 | */ 28 | private $firstIndexPtr = 0; 29 | private $lastIndexPtr = 0; 30 | private $totalBlocks = 0; 31 | 32 | /** 33 | * for memory mode only 34 | * the original db binary string 35 | */ 36 | private $dbBinStr = NULL; 37 | private $dbFile = NULL; 38 | 39 | /** 40 | * construct method 41 | * 42 | * @param ip2regionFile 43 | */ 44 | public function __construct($ip2regionFile = null) { 45 | $this->dbFile = is_null($ip2regionFile) ? __DIR__ . '/ip2region.db' : $ip2regionFile; 46 | } 47 | 48 | /** 49 | * all the db binary string will be loaded into memory 50 | * then search the memory only and this will a lot faster than disk base search 51 | * @Note: 52 | * invoke it once before put it to public invoke could make it thread safe 53 | * 54 | * @param $ip 55 | */ 56 | public function memorySearch($ip) { 57 | //check and load the binary string for the first time 58 | if ($this->dbBinStr == NULL) { 59 | $this->dbBinStr = file_get_contents($this->dbFile); 60 | if ($this->dbBinStr == false) { 61 | throw new Exception("Fail to open the db file {$this->dbFile}"); 62 | } 63 | 64 | $this->firstIndexPtr = self::getLong($this->dbBinStr, 0); 65 | $this->lastIndexPtr = self::getLong($this->dbBinStr, 4); 66 | $this->totalBlocks = ($this->lastIndexPtr - $this->firstIndexPtr) / INDEX_BLOCK_LENGTH + 1; 67 | } 68 | 69 | if (is_string($ip)) $ip = self::safeIp2long($ip); 70 | 71 | //binary search to define the data 72 | $l = 0; 73 | $h = $this->totalBlocks; 74 | $dataPtr = 0; 75 | while ($l <= $h) { 76 | $m = (($l + $h) >> 1); 77 | $p = $this->firstIndexPtr + $m * INDEX_BLOCK_LENGTH; 78 | $sip = self::getLong($this->dbBinStr, $p); 79 | if ($ip < $sip) { 80 | $h = $m - 1; 81 | } else { 82 | $eip = self::getLong($this->dbBinStr, $p + 4); 83 | if ($ip > $eip) { 84 | $l = $m + 1; 85 | } else { 86 | $dataPtr = self::getLong($this->dbBinStr, $p + 8); 87 | break; 88 | } 89 | } 90 | } 91 | 92 | //not matched just stop it here 93 | if ($dataPtr == 0) return NULL; 94 | 95 | //get the data 96 | $dataLen = (($dataPtr >> 24) & 0xFF); 97 | $dataPtr = ($dataPtr & 0x00FFFFFF); 98 | 99 | return array( 100 | 'city_id' => self::getLong($this->dbBinStr, $dataPtr), 101 | 'region' => substr($this->dbBinStr, $dataPtr + 4, $dataLen - 4) 102 | ); 103 | } 104 | 105 | /** 106 | * get the data block throught the specifield ip address or long ip numeric with binary search algorithm 107 | * 108 | * @param ip 109 | * @return mixed Array or NULL for any error 110 | */ 111 | public function binarySearch($ip) { 112 | //check and conver the ip address 113 | if (is_string($ip)) $ip = self::safeIp2long($ip); 114 | if ($this->totalBlocks == 0) { 115 | //check and open the original db file 116 | if ($this->dbFileHandler == NULL) { 117 | $this->dbFileHandler = fopen($this->dbFile, 'r'); 118 | if ($this->dbFileHandler == false) { 119 | throw new Exception("Fail to open the db file {$this->dbFile}"); 120 | } 121 | } 122 | 123 | fseek($this->dbFileHandler, 0); 124 | $superBlock = fread($this->dbFileHandler, 8); 125 | 126 | $this->firstIndexPtr = self::getLong($superBlock, 0); 127 | $this->lastIndexPtr = self::getLong($superBlock, 4); 128 | $this->totalBlocks = ($this->lastIndexPtr - $this->firstIndexPtr) / INDEX_BLOCK_LENGTH + 1; 129 | } 130 | 131 | //binary search to define the data 132 | $l = 0; 133 | $h = $this->totalBlocks; 134 | $dataPtr = 0; 135 | while ($l <= $h) { 136 | $m = (($l + $h) >> 1); 137 | $p = $m * INDEX_BLOCK_LENGTH; 138 | 139 | fseek($this->dbFileHandler, $this->firstIndexPtr + $p); 140 | $buffer = fread($this->dbFileHandler, INDEX_BLOCK_LENGTH); 141 | $sip = self::getLong($buffer, 0); 142 | if ($ip < $sip) { 143 | $h = $m - 1; 144 | } else { 145 | $eip = self::getLong($buffer, 4); 146 | if ($ip > $eip) { 147 | $l = $m + 1; 148 | } else { 149 | $dataPtr = self::getLong($buffer, 8); 150 | break; 151 | } 152 | } 153 | } 154 | 155 | //not matched just stop it here 156 | if ($dataPtr == 0) return NULL; 157 | 158 | 159 | //get the data 160 | $dataLen = (($dataPtr >> 24) & 0xFF); 161 | $dataPtr = ($dataPtr & 0x00FFFFFF); 162 | 163 | fseek($this->dbFileHandler, $dataPtr); 164 | $data = fread($this->dbFileHandler, $dataLen); 165 | 166 | return array( 167 | 'city_id' => self::getLong($data, 0), 168 | 'region' => substr($data, 4) 169 | ); 170 | } 171 | 172 | /** 173 | * get the data block associated with the specifield ip with b-tree search algorithm 174 | * @Note: not thread safe 175 | * 176 | * @param ip 177 | * @return Mixed Array for NULL for any error 178 | */ 179 | public function btreeSearch($ip) { 180 | if (is_string($ip)) $ip = self::safeIp2long($ip); 181 | 182 | //check and load the header 183 | if ($this->HeaderSip == NULL) { 184 | //check and open the original db file 185 | if ($this->dbFileHandler == NULL) { 186 | $this->dbFileHandler = fopen($this->dbFile, 'r'); 187 | if ($this->dbFileHandler == false) { 188 | throw new Exception("Fail to open the db file {$this->dbFile}"); 189 | } 190 | } 191 | 192 | fseek($this->dbFileHandler, 8); 193 | $buffer = fread($this->dbFileHandler, TOTAL_HEADER_LENGTH); 194 | 195 | //fill the header 196 | $idx = 0; 197 | $this->HeaderSip = array(); 198 | $this->HeaderPtr = array(); 199 | for ($i = 0; $i < TOTAL_HEADER_LENGTH; $i += 8) { 200 | $startIp = self::getLong($buffer, $i); 201 | $dataPtr = self::getLong($buffer, $i + 4); 202 | if ($dataPtr == 0) break; 203 | 204 | $this->HeaderSip[] = $startIp; 205 | $this->HeaderPtr[] = $dataPtr; 206 | $idx++; 207 | } 208 | 209 | $this->headerLen = $idx; 210 | } 211 | 212 | //1. define the index block with the binary search 213 | $l = 0; 214 | $h = $this->headerLen; 215 | $sptr = 0; 216 | $eptr = 0; 217 | while ($l <= $h) { 218 | $m = (($l + $h) >> 1); 219 | 220 | //perfetc matched, just return it 221 | if ($ip == $this->HeaderSip[$m]) { 222 | if ($m > 0) { 223 | $sptr = $this->HeaderPtr[$m - 1]; 224 | $eptr = $this->HeaderPtr[$m]; 225 | } else { 226 | $sptr = $this->HeaderPtr[$m]; 227 | $eptr = $this->HeaderPtr[$m + 1]; 228 | } 229 | 230 | break; 231 | } 232 | 233 | //less then the middle value 234 | if ($ip < $this->HeaderSip[$m]) { 235 | if ($m == 0) { 236 | $sptr = $this->HeaderPtr[$m]; 237 | $eptr = $this->HeaderPtr[$m + 1]; 238 | break; 239 | } else if ($ip > $this->HeaderSip[$m - 1]) { 240 | $sptr = $this->HeaderPtr[$m - 1]; 241 | $eptr = $this->HeaderPtr[$m]; 242 | break; 243 | } 244 | $h = $m - 1; 245 | } else { 246 | if ($m == $this->headerLen - 1) { 247 | $sptr = $this->HeaderPtr[$m - 1]; 248 | $eptr = $this->HeaderPtr[$m]; 249 | break; 250 | } else if ($ip <= $this->HeaderSip[$m + 1]) { 251 | $sptr = $this->HeaderPtr[$m]; 252 | $eptr = $this->HeaderPtr[$m + 1]; 253 | break; 254 | } 255 | $l = $m + 1; 256 | } 257 | } 258 | 259 | //match nothing just stop it 260 | if ($sptr == 0) return NULL; 261 | 262 | //2. search the index blocks to define the data 263 | $blockLen = $eptr - $sptr; 264 | fseek($this->dbFileHandler, $sptr); 265 | $index = fread($this->dbFileHandler, $blockLen + INDEX_BLOCK_LENGTH); 266 | 267 | $dataptr = 0; 268 | $l = 0; 269 | $h = $blockLen / INDEX_BLOCK_LENGTH; 270 | while ($l <= $h) { 271 | $m = (($l + $h) >> 1); 272 | $p = (int)($m * INDEX_BLOCK_LENGTH); 273 | $sip = self::getLong($index, $p); 274 | if ($ip < $sip) { 275 | $h = $m - 1; 276 | } else { 277 | $eip = self::getLong($index, $p + 4); 278 | if ($ip > $eip) { 279 | $l = $m + 1; 280 | } else { 281 | $dataptr = self::getLong($index, $p + 8); 282 | break; 283 | } 284 | } 285 | } 286 | 287 | //not matched 288 | if ($dataptr == 0) return NULL; 289 | 290 | //3. get the data 291 | $dataLen = (($dataptr >> 24) & 0xFF); 292 | $dataPtr = ($dataptr & 0x00FFFFFF); 293 | 294 | fseek($this->dbFileHandler, $dataPtr); 295 | $data = fread($this->dbFileHandler, $dataLen); 296 | 297 | return array( 298 | 'city_id' => self::getLong($data, 0), 299 | 'region' => substr($data, 4) 300 | ); 301 | } 302 | 303 | 304 | /** 305 | * safe self::safeIp2long function 306 | * 307 | * @param ip 308 | * */ 309 | public static function safeIp2long($ip) { 310 | $ip = ip2long($ip); 311 | 312 | // convert signed int to unsigned int if on 32 bit operating system 313 | if ($ip < 0 && PHP_INT_SIZE == 4) { 314 | $ip = sprintf("%u", $ip); 315 | } 316 | 317 | return $ip; 318 | } 319 | 320 | 321 | /** 322 | * read a long from a byte buffer 323 | * 324 | * @param b 325 | * @param offset 326 | */ 327 | public static function getLong($b, $offset) { 328 | $val = ( 329 | (ord($b[$offset++])) | 330 | (ord($b[$offset++]) << 8) | 331 | (ord($b[$offset++]) << 16) | 332 | (ord($b[$offset]) << 24) 333 | ); 334 | 335 | // convert signed int to unsigned int if on 32 bit operating system 336 | if ($val < 0 && PHP_INT_SIZE == 4) { 337 | $val = sprintf("%u", $val); 338 | } 339 | 340 | return $val; 341 | } 342 | 343 | /** 344 | * destruct method, resource destroy 345 | */ 346 | public function __destruct() { 347 | if ($this->dbFileHandler != NULL) { 348 | fclose($this->dbFileHandler); 349 | } 350 | 351 | $this->dbBinStr = NULL; 352 | $this->HeaderSip = NULL; 353 | $this->HeaderPtr = NULL; 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