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<?php
2
/*
3
// create instance protocol://user:pass@host/db?charset=UTF8&persist=TRUE&timezone=Europe/Sofia
4
$db = DB::get('mysqli://root@127.0.0.1/test');
5
$db = DB::get('oracle://root:pass@VIRT/?charset=AL32UTF8');
6
// execute a non-resulting query (returns boolean true)
7
$db->query('UPDATE table SET value = 1 WHERE id = ?', array(1));
8
// get all results as array
9
$db->all('SELECT * FROM table WHERE id = ?', array(1), "array_key", bool_skip_key, "assoc"/"num");
10
// get one result
11
$db->one('SELECT * FROM table WHERE id = ?', array(1), "assoc"/"num");
12
// get a traversable object to pass to foreach, or use count(), or use direct access: [INDEX]
13
$db->get('SELECT * FROM table WHERE id = ?', array(1), "assoc"/"num")[1];
14
*/
15
 
16
namespace
17
{
18
	class db
19
	{
20
		private function __construct() {
21
		}
22
		public function __clone() {
23
			throw new \vakata\database\Exception('Cannot clone static DB');
24
		}
25
		public static function get($settings = null) {
26
			return new \vakata\database\DBC($settings);
27
		}
28
		public static function getc($settings = null, \vakata\cache\ICache $c = null) {
29
			if($c === null) { $c = \vakata\cache\cache::inst(); }
30
			return new \vakata\database\DBCCached($settings, $c);
31
		}
32
	}
33
}
34
 
35
namespace vakata\database
36
{
37
	class Exception extends \Exception
38
	{
39
	}
40
 
41
	class Settings
42
	{
43
		public $type		= null;
44
		public $username	= 'root';
45
		public $password	= null;
46
		public $database	= null;
47
		public $servername	= 'localhost';
48
		public $serverport	= null;
49
		public $persist		= false;
50
		public $timezone	= null;
51
		public $charset		= 'UTF8';
52
 
53
		public function __construct($settings) {
54
			$str = parse_url($settings);
55
			if(!$str) {
56
				throw new Exception('Malformed DB settings string: ' . $settings);
57
			}
58
			if(array_key_exists('scheme',$str)) {
59
				$this->type			= rawurldecode($str['scheme']);
60
			}
61
			if(array_key_exists('user',$str)) {
62
				$this->username		= rawurldecode($str['user']);
63
			}
64
			if(array_key_exists('pass',$str)) {
65
				$this->password		= rawurldecode($str['pass']);
66
			}
67
			if(array_key_exists('path',$str)) {
68
				$this->database		= trim(rawurldecode($str['path']),'/');
69
			}
70
			if(array_key_exists('host',$str)) {
71
				$this->servername	= rawurldecode($str['host']);
72
			}
73
			if(array_key_exists('port',$str)) {
74
				$this->serverport	= rawurldecode($str['port']);
75
			}
76
			if(array_key_exists('query',$str)) {
77
				parse_str($str['query'], $str);
78
				$this->persist = (array_key_exists('persist', $str) && $str['persist'] === 'TRUE');
79
				if(array_key_exists('charset', $str)) {
80
					$this->charset = $str['charset'];
81
				}
82
				if(array_key_exists('timezone', $str)) {
83
					$this->timezone = $str['timezone'];
84
				}
85
			}
86
		}
87
	}
88
 
89
	interface IDB
90
	{
91
		public function connect();
92
		public function query($sql, $vars);
93
		public function get($sql, $data, $key, $skip_key, $mode);
94
		public function all($sql, $data, $key, $skip_key, $mode);
95
		public function one($sql, $data, $mode);
96
		public function raw($sql);
97
		public function prepare($sql);
98
		public function execute($data);
99
		public function disconnect();
100
	}
101
 
102
	interface IDriver
103
	{
104
		public function prepare($sql);
105
		public function execute($data);
106
		public function query($sql, $data);
107
		public function nextr($result);
108
		public function seek($result, $row);
109
		public function nf($result);
110
		public function af();
111
		public function insert_id();
112
		public function real_query($sql);
113
		public function get_settings();
114
	}
115
 
116
	abstract class ADriver implements IDriver
117
	{
118
		protected $lnk = null;
119
		protected $settings = null;
120
 
121
		public function __construct(Settings $settings) {
122
			$this->settings = $settings;
123
		}
124
		public function __destruct() {
125
			if($this->is_connected()) {
126
				$this->disconnect();
127
			}
128
		}
129
		public function get_settings() {
130
			return $this->settings;
131
		}
132
 
133
		public function connect() {
134
		}
135
		public function is_connected() {
136
			return $this->lnk !== null;
137
		}
138
		public function disconnect() {
139
		}
140
		public function query($sql, $data = array()) {
141
			return $this->execute($this->prepare($sql), $data);
142
		}
143
		public function prepare($sql) {
144
			if(!$this->is_connected()) { $this->connect(); }
145
			return $sql;
146
		}
147
		public function execute($sql, $data = array()) {
148
			if(!$this->is_connected()) { $this->connect(); }
149
			if(!is_array($data)) { $data = array(); }
150
			$binder = '?';
151
			if(strpos($sql, $binder) !== false && is_array($data) && count($data)) {
152
				$tmp = explode($binder, $sql);
153
				if(!is_array($data)) { $data = array($data); }
154
				$data = array_values($data);
155
				if(count($data) >= count($tmp)) { $data = array_slice($data, 0, count($tmp)-1); }
156
				$sql = $tmp[0];
157
				foreach($data as $i => $v) {
158
					$sql .= $this->escape($v) . $tmp[($i + 1)];
159
				}
160
			}
161
			return $this->real_query($sql);
162
		}
163
 
164
		public function real_query($sql) {
165
			if(!$this->is_connected()) { $this->connect(); }
166
		}
167
		protected function escape($input) {
168
			if(is_array($input)) {
169
				foreach($input as $k => $v) {
170
					$input[$k] = $this->escape($v);
171
				}
172
				return implode(',',$input);
173
			}
174
			if(is_string($input)) {
175
				$input = addslashes($input);
176
				return "'".$input."'";
177
			}
178
			if(is_bool($input)) {
179
				return $input === false ? 0 : 1;
180
			}
181
			if(is_null($input)) {
182
				return 'NULL';
183
			}
184
			return $input;
185
		}
186
 
187
		public function nextr($result) {}
188
		public function nf($result) {}
189
		public function af() {}
190
		public function insert_id() {}
191
		public function seek($result, $row) {}
192
	}
193
 
194
	class Result implements \Iterator, \ArrayAccess, \Countable
195
	{
196
		protected $all  = null;
197
		protected $rdy  = false;
198
		protected $rslt	= null;
199
		protected $mode	= null;
200
		protected $fake	= null;
201
		protected $skip	= false;
202
 
203
		protected $fake_key	= 0;
204
		protected $real_key	= 0;
205
		public function __construct(Query $rslt, $key = null, $skip_key = false, $mode = 'assoc') {
206
			$this->rslt = $rslt;
207
			$this->mode = $mode;
208
			$this->fake = $key;
209
			$this->skip = $skip_key;
210
		}
211
		public function count() {
212
			return $this->rdy ? count($this->all) : $this->rslt->nf();
213
		}
214
		public function current() {
215
			if(!$this->count()) {
216
				return null;
217
			}
218
			if($this->rdy) {
219
				return current($this->all);
220
			}
221
			$tmp = $this->rslt->row();
222
			$row = array();
223
			switch($this->mode) {
224
				case 'num':
225
					foreach($tmp as $k => $v) {
226
						if(is_int($k)) {
227
							$row[$k] = $v;
228
						}
229
					}
230
					break;
231
				case 'both':
232
					$row = $tmp;
233
					break;
234
				case 'assoc':
235
				default:
236
					foreach($tmp as $k => $v) {
237
						if(!is_int($k)) {
238
							$row[$k] = $v;
239
						}
240
					}
241
					break;
242
			}
243
			if($this->fake) {
244
				$this->fake_key = $row[$this->fake];
245
			}
246
			if($this->skip) {
247
				unset($row[$this->fake]);
248
			}
249
			if(is_array($row) && count($row) === 1) {
250
				$row = current($row);
251
			}
252
			return $row;
253
		}
254
		public function key() {
255
			if($this->rdy) {
256
				return key($this->all);
257
			}
258
			return $this->fake ? $this->fake_key : $this->real_key;
259
		}
260
		public function next() {
261
			if($this->rdy) {
262
				return next($this->all);
263
			}
264
			$this->rslt->nextr();
265
			$this->real_key++;
266
		}
267
		public function rewind() {
268
			if($this->rdy) {
269
				return reset($this->all);
270
			}
271
			if($this->real_key !== null) {
272
				$this->rslt->seek(($this->real_key = 0));
273
			}
274
			$this->rslt->nextr();
275
		}
276
		public function valid() {
277
			if($this->rdy) {
278
				return current($this->all) !== false;
279
			}
280
			return $this->rslt->row() !== false && $this->rslt->row() !== null;
281
		}
282
 
283
		public function one() {
284
			$this->rewind();
285
			return $this->current();
286
		}
287
		public function get() {
288
			if(!$this->rdy) {
289
				$this->all = array();
290
				foreach($this as $k => $v) {
291
					$this->all[$k] = $v;
292
				}
293
				$this->rdy = true;
294
			}
295
			return $this->all;
296
		}
297
		public function offsetExists($offset) {
298
			if($this->rdy) {
299
				return isset($this->all[$offset]);
300
			}
301
			if($this->fake === null) {
302
				return $this->rslt->seek(($this->real_key = $offset));
303
			}
304
			$this->get();
305
			return isset($this->all[$offset]);
306
		}
307
		public function offsetGet($offset) {
308
			if($this->rdy) {
309
				return $this->all[$offset];
310
			}
311
			if($this->fake === null) {
312
				$this->rslt->seek(($this->real_key = $offset));
313
				$this->rslt->nextr();
314
				return $this->current();
315
			}
316
			$this->get();
317
			return $this->all[$offset];
318
		}
319
		public function offsetSet ($offset, $value ) {
320
			throw new Exception('Cannot set result');
321
		}
322
		public function offsetUnset ($offset) {
323
			throw new Exception('Cannot unset result');
324
		}
325
		public function __sleep() {
326
			$this->get();
327
			return array('all', 'rdy', 'mode', 'fake', 'skip');
328
		}
329
		public function __toString() {
330
			return print_r($this->get(), true);
331
		}
332
	}
333
 
334
	class Query
335
	{
336
		protected $drv = null;
337
		protected $sql = null;
338
		protected $prp = null;
339
		protected $rsl = null;
340
		protected $row = null;
341
		protected $num = null;
342
		protected $aff = null;
343
		protected $iid = null;
344
 
345
		public function __construct(IDriver $drv, $sql) {
346
			$this->drv = $drv;
347
			$this->sql = $sql;
348
			$this->prp = $this->drv->prepare($sql);
349
		}
350
		public function execute($vars = array()) {
351
			$this->rsl = $this->drv->execute($this->prp, $vars);
352
			$this->num = (is_object($this->rsl) || is_resource($this->rsl)) && is_callable(array($this->drv, 'nf')) ? (int)@$this->drv->nf($this->rsl) : 0;
353
			$this->aff = $this->drv->af();
354
			$this->iid = $this->drv->insert_id();
355
			return $this;
356
		}
357
		public function result($key = null, $skip_key = false, $mode = 'assoc') {
358
			return new Result($this, $key, $skip_key, $mode);
359
		}
360
		public function row() {
361
			return $this->row;
362
		}
363
		public function f($field) {
364
			return $this->row[$field];
365
		}
366
		public function nextr() {
367
			$this->row = $this->drv->nextr($this->rsl);
368
			return $this->row !== false && $this->row !== null;
369
		}
370
		public function seek($offset) {
371
			return @$this->drv->seek($this->rsl, $offset) ? true : false;
372
		}
373
		public function nf() {
374
			return $this->num;
375
		}
376
		public function af() {
377
			return $this->aff;
378
		}
379
		public function insert_id() {
380
			return $this->iid;
381
		}
382
	}
383
 
384
	class DBC implements IDB
385
	{
386
		protected $drv = null;
387
		protected $que = null;
388
 
389
		public function __construct($drv = null) {
390
			if(!$drv && defined('DATABASE')) {
391
				$drv = DATABASE;
392
			}
393
			if(!$drv) {
394
				$this->error('Could not create database (no settings)');
395
			}
396
			if(is_string($drv)) {
397
				$drv = new \vakata\database\Settings($drv);
398
			}
399
			if($drv instanceof Settings) {
400
				$tmp = '\\vakata\\database\\' . $drv->type . '_driver';
401
				if(!class_exists($tmp)) {
402
					$this->error('Could not create database (no driver: '.$drv->type.')');
403
				}
404
				$drv = new $tmp($drv);
405
			}
406
			if(!($drv instanceof IDriver)) {
407
				$this->error('Could not create database - wrong driver');
408
			}
409
			$this->drv = $drv;
410
		}
411
 
412
		public function connect() {
413
			if(!$this->drv->is_connected()) {
414
				try {
415
					$this->drv->connect();
416
				}
417
				catch (Exception $e) {
418
					$this->error($e->getMessage(), 1);
419
				}
420
			}
421
			return true;
422
		}
423
		public function disconnect() {
424
			if($this->drv->is_connected()) {
425
				$this->drv->disconnect();
426
			}
427
		}
428
 
429
		public function prepare($sql) {
430
			try {
431
				$this->que = new Query($this->drv, $sql);
432
				return $this->que;
433
			} catch (Exception $e) {
434
				$this->error($e->getMessage(), 2);
435
			}
436
		}
437
		public function execute($data = array()) {
438
			try {
439
				return $this->que->execute($data);
440
			} catch (Exception $e) {
441
				$this->error($e->getMessage(), 3);
442
			}
443
		}
444
		public function query($sql, $data = array()) {
445
			try {
446
				$this->que = new Query($this->drv, $sql);
447
				return $this->que->execute($data);
448
			}
449
			catch (Exception $e) {
450
				$this->error($e->getMessage(), 4);
451
			}
452
		}
453
		public function get($sql, $data = array(), $key = null, $skip_key = false, $mode = 'assoc') {
454
			return $this->query($sql, $data)->result($key, $skip_key, $mode);
455
		}
456
		public function all($sql, $data = array(), $key = null, $skip_key = false, $mode = 'assoc') {
457
			return $this->get($sql, $data, $key, $skip_key, $mode)->get();
458
		}
459
		public function one($sql, $data = array(), $mode = 'assoc') {
460
			return $this->query($sql, $data)->result(null, false, $mode)->one();
461
		}
462
		public function raw($sql) {
463
			return $this->drv->real_query($sql);
464
		}
465
		public function get_driver() {
466
			return $this->drv->get_settings()->type;
467
		}
468
 
469
		public function __call($method, $args) {
470
			if($this->que && is_callable(array($this->que, $method))) {
471
				try {
472
					return call_user_func_array(array($this->que, $method), $args);
473
				} catch (Exception $e) {
474
					$this->error($e->getMessage(), 5);
475
				}
476
			}
477
		}
478
 
479
		protected final function error($error = '') {
480
			$dirnm = defined('LOGROOT') ? LOGROOT : realpath(dirname(__FILE__));
481
			@file_put_contents(
482
				$dirnm . DIRECTORY_SEPARATOR . '_errors_sql.log',
483
				'[' . date('d-M-Y H:i:s') . '] ' . $this->settings->type . ' > ' . preg_replace("@[\s\r\n\t]+@", ' ', $error) . "\n",
484
				FILE_APPEND
485
			);
486
			throw new Exception($error);
487
		}
488
	}
489
 
490
	class DBCCached extends DBC
491
	{
492
		protected $cache_inst = null;
493
		protected $cache_nmsp = null;
494
		public function __construct($settings = null, \vakata\cache\ICache $c = null) {
495
			parent::__construct($settings);
496
			$this->cache_inst = $c;
497
			$this->cache_nmsp = 'DBCCached_' . md5(serialize($this->drv->get_settings()));
498
		}
499
		public function cache($expires, $sql, $data = array(), $key = null, $skip_key = false, $mode = 'assoc') {
500
			$arg = func_get_args();
501
			array_shift($arg);
502
			$key = md5(serialize($arg));
503
			if(!$this->cache_inst) {
504
				return call_user_func_array(array($this, 'all'), $arg);
505
			}
506
 
507
			$tmp = $this->cache_inst->get($key, $this->cache_nmsp);
508
			if(!$tmp) {
509
				$this->cache_inst->prep($key, $this->cache_nmsp);
510
				$tmp = call_user_func_array(array($this, 'all'), $arg);
511
				$this->cache_inst->set($key, $tmp, $this->cache_nmsp, $expires);
512
			}
513
			return $tmp;
514
		}
515
		public function clear() {
516
			if($this->cache_inst) {
517
				$this->cache_inst->clear($this->cache_nmsp);
518
			}
519
		}
520
	}
521
 
522
	class mysqli_driver extends ADriver
523
	{
524
		protected $iid = 0;
525
		protected $aff = 0;
526
		protected $mnd = false;
527
 
528
		public function __construct($settings) {
529
			parent::__construct($settings);
530
			if(!$this->settings->serverport) { $this->settings->serverport = 3306; }
531
			$this->mnd = function_exists('mysqli_fetch_all');
532
		}
533
 
534
		public function connect() {
535
			$this->lnk = new \mysqli(
536
				($this->settings->persist ? 'p:' : '') . $this->settings->servername,
537
				$this->settings->username,
538
				$this->settings->password,
539
				$this->settings->database,
540
				$this->settings->serverport
541
			);
542
			if($this->lnk->connect_errno) {
543
				throw new Exception('Connect error: ' . $this->lnk->connect_errno);
544
			}
545
			if(!$this->lnk->set_charset($this->settings->charset)) {
546
				throw new Exception('Charset error: ' . $this->lnk->connect_errno);
547
			}
548
			if($this->settings->timezone) {
549
				@$this->lnk->query("SET time_zone = '" . addslashes($this->settings->timezone) . "'");
550
			}
551
			return true;
552
		}
553
		public function disconnect() {
554
			if($this->is_connected()) {
555
				@$this->lnk->close();
556
			}
557
		}
558
		public function real_query($sql) {
559
			if(!$this->is_connected()) { $this->connect(); }
560
			$temp = $this->lnk->query($sql);
561
			if(!$temp) {
562
				throw new Exception('Could not execute query : ' . $this->lnk->error . ' <'.$sql.'>');
563
			}
564
			$this->iid = $this->lnk->insert_id;
565
			$this->aff = $this->lnk->affected_rows;
566
			return $temp;
567
		}
568
		public function nextr($result) {
569
			if($this->mnd) {
570
				return $result->fetch_array(MYSQL_BOTH);
571
			}
572
			else {
573
				$ref = $result->result_metadata();
574
				if(!$ref) { return false; }
575
				$tmp = mysqli_fetch_fields($ref);
576
				if(!$tmp) { return false; }
577
				$ref = array();
578
				foreach($tmp as $col) { $ref[$col->name] = null; }
579
				$tmp = array();
580
				foreach($ref as $k => $v) { $tmp[] =& $ref[$k]; }
581
				if(!call_user_func_array(array($result, 'bind_result'), $tmp)) { return false; }
582
				if(!$result->fetch()) { return false; }
583
				$tmp = array();
584
				$i = 0;
585
				foreach($ref as $k => $v) { $tmp[$i++] = $v; $tmp[$k] = $v; }
586
				return $tmp;
587
			}
588
		}
589
		public function seek($result, $row) {
590
			$temp = $result->data_seek($row);
591
			return $temp;
592
		}
593
		public function nf($result) {
594
			return $result->num_rows;
595
		}
596
		public function af() {
597
			return $this->aff;
598
		}
599
		public function insert_id() {
600
			return $this->iid;
601
		}
602
		public function prepare($sql) {
603
			if(!$this->is_connected()) { $this->connect(); }
604
			$temp = $this->lnk->prepare($sql);
605
			if(!$temp) {
606
				throw new Exception('Could not prepare : ' . $this->lnk->error . ' <'.$sql.'>');
607
			}
608
			return $temp;
609
		}
610
		public function execute($sql, $data = array()) {
611
			if(!$this->is_connected()) { $this->connect(); }
612
			if(!is_array($data)) { $data = array(); }
613
			if(is_string($sql)) {
614
				return parent::execute($sql, $data);
615
			}
616
 
617
			$data = array_values($data);
618
			if($sql->param_count) {
619
				if(count($data) < $sql->param_count) {
620
					throw new Exception('Prepared execute - not enough parameters.');
621
				}
622
				$ref = array('');
623
				foreach($data as $i => $v) {
624
					switch(gettype($v)) {
625
						case "boolean":
626
						case "integer":
627
							$data[$i] = (int)$v;
628
							$ref[0] .= 'i';
629
							$ref[$i+1] =& $data[$i];
630
							break;
631
						case "double":
632
							$ref[0] .= 'd';
633
							$ref[$i+1] =& $data[$i];
634
							break;
635
						case "array":
636
							$data[$i] = implode(',',$v);
637
							$ref[0] .= 's';
638
							$ref[$i+1] =& $data[$i];
639
							break;
640
						case "object":
641
						case "resource":
642
							$data[$i] = serialize($data[$i]);
643
							$ref[0] .= 's';
644
							$ref[$i+1] =& $data[$i];
645
							break;
646
						default:
647
							$ref[0] .= 's';
648
							$ref[$i+1] =& $data[$i];
649
							break;
650
					}
651
				}
652
				call_user_func_array(array($sql, 'bind_param'), $ref);
653
			}
654
			$rtrn = $sql->execute();
655
			if(!$this->mnd) {
656
				$sql->store_result();
657
			}
658
			if(!$rtrn) {
659
				throw new Exception('Prepared execute error : ' . $this->lnk->error);
660
			}
661
			$this->iid = $this->lnk->insert_id;
662
			$this->aff = $this->lnk->affected_rows;
663
			if(!$this->mnd) {
664
				return $sql->field_count ? $sql : $rtrn;
665
			}
666
			else {
667
				return $sql->field_count ? $sql->get_result() : $rtrn;
668
			}
669
		}
670
 
671
		protected function escape($input) {
672
			if(is_array($input)) {
673
				foreach($input as $k => $v) {
674
					$input[$k] = $this->escape($v);
675
				}
676
				return implode(',',$input);
677
			}
678
			if(is_string($input)) {
679
				$input = $this->lnk->real_escape_string($input);
680
				return "'".$input."'";
681
			}
682
			if(is_bool($input)) {
683
				return $input === false ? 0 : 1;
684
			}
685
			if(is_null($input)) {
686
				return 'NULL';
687
			}
688
			return $input;
689
		}
690
	}
691
 
692
	class mysql_driver extends ADriver
693
	{
694
		protected $iid = 0;
695
		protected $aff = 0;
696
		public function __construct($settings) {
697
			parent::__construct($settings);
698
			if(!$this->settings->serverport) { $this->settings->serverport = 3306; }
699
		}
700
		public function connect() {
701
			$this->lnk = ($this->settings->persist) ?
702
					@mysql_pconnect(
703
						$this->settings->servername.':'.$this->settings->serverport,
704
						$this->settings->username,
705
						$this->settings->password
706
					) :
707
					@mysql_connect(
708
						$this->settings->servername.':'.$this->settings->serverport,
709
						$this->settings->username,
710
						$this->settings->password
711
					);
712
 
713
			if($this->lnk === false || !mysql_select_db($this->settings->database, $this->lnk) || !mysql_query("SET NAMES '".$this->settings->charset."'", $this->lnk)) {
714
				throw new Exception('Connect error: ' . mysql_error());
715
			}
716
			if($this->settings->timezone) {
717
				@mysql_query("SET time_zone = '" . addslashes($this->settings->timezone) . "'", $this->lnk);
718
			}
719
			return true;
720
		}
721
		public function disconnect() {
722
			if(is_resource($this->lnk)) {
723
				mysql_close($this->lnk);
724
			}
725
		}
726
 
727
		public function real_query($sql) {
728
			if(!$this->is_connected()) { $this->connect(); }
729
			$temp = mysql_query($sql, $this->lnk);
730
			if(!$temp) {
731
				throw new Exception('Could not execute query : ' . mysql_error($this->lnk) . ' <'.$sql.'>');
732
			}
733
			$this->iid = mysql_insert_id($this->lnk);
734
			$this->aff = mysql_affected_rows($this->lnk);
735
			return $temp;
736
		}
737
		public function nextr($result) {
738
			return mysql_fetch_array($result, MYSQL_BOTH);
739
		}
740
		public function seek($result, $row) {
741
			$temp = @mysql_data_seek($result, $row);
742
			if(!$temp) {
743
				//throw new Exception('Could not seek : ' . mysql_error($this->lnk));
744
			}
745
			return $temp;
746
		}
747
		public function nf($result) {
748
			return mysql_num_rows($result);
749
		}
750
		public function af() {
751
			return $this->aff;
752
		}
753
		public function insert_id() {
754
			return $this->iid;
755
		}
756
 
757
		protected function escape($input) {
758
			if(is_array($input)) {
759
				foreach($input as $k => $v) {
760
					$input[$k] = $this->escape($v);
761
				}
762
				return implode(',',$input);
763
			}
764
			if(is_string($input)) {
765
				$input = mysql_real_escape_string($input, $this->lnk);
766
				return "'".$input."'";
767
			}
768
			if(is_bool($input)) {
769
				return $input === false ? 0 : 1;
770
			}
771
			if(is_null($input)) {
772
				return 'NULL';
773
			}
774
			return $input;
775
		}
776
	}
777
 
778
	class postgre_driver extends ADriver
779
	{
780
		protected $iid = 0;
781
		protected $aff = 0;
782
		public function __construct($settings) {
783
			parent::__construct($settings);
784
			if(!$this->settings->serverport) { $this->settings->serverport = 5432; }
785
		}
786
		public function connect() {
787
			$this->lnk = ($this->settings->persist) ?
788
					@pg_pconnect(
789
						"host=" . $this->settings->servername . " " .
790
						"port=" . $this->settings->serverport . " " .
791
						"user=" . $this->settings->username . " " .
792
						"password=" . $this->settings->password . " " .
793
						"dbname=" . $this->settings->database . " " .
794
						"options='--client_encoding=".strtoupper($this->settings->charset)."' "
795
					) :
796
					@pg_connect(
797
						"host=" . $this->settings->servername . " " .
798
						"port=" . $this->settings->serverport . " " .
799
						"user=" . $this->settings->username . " " .
800
						"password=" . $this->settings->password . " " .
801
						"dbname=" . $this->settings->database . " " .
802
						"options='--client_encoding=".strtoupper($this->settings->charset)."' "
803
					);
804
			if($this->lnk === false) {
805
				throw new Exception('Connect error');
806
			}
807
			if($this->settings->timezone) {
808
				@pg_query($this->lnk, "SET TIME ZONE '".addslashes($this->settings->timezone)."'");
809
			}
810
			return true;
811
		}
812
		public function disconnect() {
813
			if(is_resource($this->lnk)) {
814
				pg_close($this->lnk);
815
			}
816
		}
817
		public function real_query($sql) {
818
			return $this->query($sql);
819
		}
820
		public function prepare($sql) {
821
			if(!$this->is_connected()) { $this->connect(); }
822
			$binder = '?';
823
			if(strpos($sql, $binder) !== false) {
824
				$tmp = explode($binder, $sql);
825
				$sql = $tmp[0];
826
				foreach($tmp as $i => $v) {
827
					$sql .= '$' . ($i + 1);
828
					if(isset($tmp[($i + 1)])) {
829
						$sql .= $tmp[($i + 1)];
830
					}
831
				}
832
			}
833
			return $sql;
834
		}
835
		public function execute($sql, $data = array()) {
836
			if(!$this->is_connected()) { $this->connect(); }
837
			if(!is_array($data)) { $data = array(); }
838
			$temp = (is_array($data) && count($data)) ? pg_query_params($this->lnk, $sql, $data) : pg_query_params($this->lnk, $sql, array());
839
			if(!$temp) {
840
				throw new Exception('Could not execute query : ' . pg_last_error($this->lnk) . ' <'.$sql.'>');
841
			}
842
			if(preg_match('@^\s*(INSERT|REPLACE)\s+INTO@i', $sql)) {
843
				$this->iid = pg_query($this->lnk, 'SELECT lastval()');
844
				$this->aff = pg_affected_rows($temp);
845
			}
846
			return $temp;
847
		}
848
 
849
		public function nextr($result) {
850
			return pg_fetch_array($result, NULL, PGSQL_BOTH);
851
		}
852
		public function seek($result, $row) {
853
			$temp = @pg_result_seek($result, $row);
854
			if(!$temp) {
855
				//throw new Exception('Could not seek : ' . pg_last_error($this->lnk));
856
			}
857
			return $temp;
858
		}
859
		public function nf($result) {
860
			return pg_num_rows($result);
861
		}
862
		public function af() {
863
			return $this->aff;
864
		}
865
		public function insert_id() {
866
			return $this->iid;
867
		}
868
 
869
		// Функция mysql_query?
870
		//  - http://okbob.blogspot.com/2009/08/mysql-functions-for-postgresql.html
871
		//  - http://www.xach.com/aolserver/mysql-to-postgresql.html
872
		//  - REPLACE unixtimestamp / limit / curdate
873
	}
874
 
875
	class oracle_driver extends ADriver
876
	{
877
		protected $iid = 0;
878
		protected $aff = 0;
879
 
880
		public function connect() {
881
			$this->lnk = ($this->settings->persist) ?
882
					@oci_pconnect($this->settings->username, $this->settings->password, $this->settings->servername, $this->settings->charset) :
883
					@oci_connect ($this->settings->username, $this->settings->password, $this->settings->servername, $this->settings->charset);
884
			if($this->lnk === false) {
885
				throw new Exception('Connect error : ' . oci_error());
886
			}
887
			if($this->settings->timezone) {
888
				$this->real_query("ALTER session SET time_zone = '" . addslashes($this->settings->timezone) . "'");
889
			}
890
			return true;
891
		}
892
		public function disconnect() {
893
			if(is_resource($this->lnk)) {
894
				oci_close($this->lnk);
895
			}
896
		}
897
		public function real_query($sql) {
898
			if(!$this->is_connected()) { $this->connect(); }
899
			$temp = oci_parse($this->lnk, $sql);
900
			if(!$temp || !oci_execute($temp)) {
901
				throw new Exception('Could not execute real query : ' . oci_error($temp));
902
			}
903
			$this->aff = oci_num_rows($temp);
904
			return $temp;
905
		}
906
 
907
		public function prepare($sql) {
908
			if(!$this->is_connected()) { $this->connect(); }
909
			$binder = '?';
910
			if(strpos($sql, $binder) !== false && $vars !== false) {
911
				$tmp = explode($this->binder, $sql);
912
				$sql = $tmp[0];
913
				foreach($tmp as $i => $v) {
914
					$sql .= ':f' . $i;
915
					if(isset($tmp[($i + 1)])) {
916
						$sql .= $tmp[($i + 1)];
917
					}
918
				}
919
			}
920
			return oci_parse($this->lnk, $sql);
921
		}
922
		public function execute($sql, $data = array()) {
923
			if(!$this->is_connected()) { $this->connect(); }
924
			if(!is_array($data)) { $data = array(); }
925
			$data = array_values($data);
926
			foreach($data as $i => $v) {
927
				switch(gettype($v)) {
928
					case "boolean":
929
					case "integer":
930
						$data[$i] = (int)$v;
931
						oci_bind_by_name($sql, 'f'.$i, $data[$i], SQLT_INT);
932
						break;
933
					case "array":
934
						$data[$i] = implode(',',$v);
935
						oci_bind_by_name($sql, 'f'.$i, $data[$i]);
936
						break;
937
					case "object":
938
					case "resource":
939
						$data[$i] = serialize($data[$i]);
940
						oci_bind_by_name($sql, 'f'.$i, $data[$i]);
941
						break;
942
					default:
943
						oci_bind_by_name($sql, 'f'.$i, $data[$i]);
944
						break;
945
				}
946
			}
947
			$temp = oci_execute($sql);
948
			if(!$temp) {
949
				throw new Exception('Could not execute query : ' . oci_error($sql));
950
			}
951
			$this->aff = oci_num_rows($sql);
952
 
953
			/* TO DO: get iid
954
			if(!$seqname) { return $this->error('INSERT_ID not supported with no sequence.'); }
955
			$stm = oci_parse($this->link, 'SELECT '.strtoupper(str_replace("'",'',$seqname)).'.CURRVAL FROM DUAL');
956
			oci_execute($stm, $sql);
957
			$tmp = oci_fetch_array($stm);
958
			$tmp = $tmp[0];
959
			oci_free_statement($stm);
960
			*/
961
			return $sql;
962
		}
963
		public function nextr($result) {
964
			return oci_fetch_array($result, OCI_BOTH);
965
		}
966
		public function seek($result, $row) {
967
			$cnt = 0;
968
			while($cnt < $row) {
969
				if(oci_fetch_array($result, OCI_BOTH) === false) {
970
					return false;
971
				}
972
				$cnt++;
973
			}
974
			return true;
975
		}
976
		public function nf($result) {
977
			return oci_num_rows($result);
978
		}
979
		public function af() {
980
			return $this->aff;
981
		}
982
		public function insert_id() {
983
			return $this->iid;
984
		}
985
	}
986
 
987
	class ibase_driver extends ADriver
988
	{
989
		protected $iid = 0;
990
		protected $aff = 0;
991
		public function __construct($settings) {
992
			parent::__construct($settings);
993
			if(!is_file($this->settings->database) && is_file('/'.$this->settings->database)) {
994
				$this->settings->database = '/'.$this->settings->database;
995
			}
996
			$this->settings->servername = ($this->settings->servername === 'localhost' || $this->settings->servername === '127.0.0.1' || $this->settings->servername === '') ?
997
				'' :
998
				$this->settings->servername . ':';
999
		}
1000
		public function connect() {
1001
			$this->lnk = ($this->settings->persist) ?
1002
					@ibase_pconnect(
1003
						$this->settings->servername . $this->settings->database,
1004
						$this->settings->username,
1005
						$this->settings->password,
1006
						strtoupper($this->settings->charset)
1007
					) :
1008
					@ibase_connect(
1009
						$this->settings->servername . $this->settings->database,
1010
						$this->settings->username,
1011
						$this->settings->password,
1012
						strtoupper($this->settings->charset)
1013
					);
1014
			if($this->lnk === false) {
1015
				throw new Exception('Connect error: ' . ibase_errmsg());
1016
			}
1017
			return true;
1018
		}
1019
		public function disconnect() {
1020
			if(is_resource($this->lnk)) {
1021
				ibase_close($this->lnk);
1022
			}
1023
		}
1024
 
1025
		public function real_query($sql) {
1026
			if(!$this->is_connected()) { $this->connect(); }
1027
			$temp = ibase_query($sql, $this->lnk);
1028
			if(!$temp) {
1029
				throw new Exception('Could not execute query : ' . ibase_errmsg() . ' <'.$sql.'>');
1030
			}
1031
			//$this->iid = mysql_insert_id($this->lnk);
1032
			$this->aff = ibase_affected_rows($this->lnk);
1033
			return $temp;
1034
		}
1035
		public function prepare($sql) {
1036
			if(!$this->is_connected()) { $this->connect(); }
1037
			return ibase_prepare($this->lnk, $sql);
1038
		}
1039
		public function execute($sql, $data = array()) {
1040
			if(!$this->is_connected()) { $this->connect(); }
1041
			if(!is_array($data)) { $data = array(); }
1042
			$data = array_values($data);
1043
			foreach($data as $i => $v) {
1044
				switch(gettype($v)) {
1045
					case "boolean":
1046
					case "integer":
1047
						$data[$i] = (int)$v;
1048
						break;
1049
					case "array":
1050
						$data[$i] = implode(',',$v);
1051
						break;
1052
					case "object":
1053
					case "resource":
1054
						$data[$i] = serialize($data[$i]);
1055
						break;
1056
				}
1057
			}
1058
			array_unshift($data, $sql);
1059
			$temp = call_user_func_array("ibase_execute", $data);
1060
			if(!$temp) {
1061
				throw new Exception('Could not execute query : ' . ibase_errmsg() . ' <'.$sql.'>');
1062
			}
1063
			$this->aff = ibase_affected_rows($this->lnk);
1064
			return $temp;
1065
		}
1066
		public function nextr($result) {
1067
			return ibase_fetch_assoc($result, IBASE_TEXT);
1068
		}
1069
		public function seek($result, $row) {
1070
			return false;
1071
		}
1072
		public function nf($result) {
1073
			return false;
1074
		}
1075
		public function af() {
1076
			return $this->aff;
1077
		}
1078
		public function insert_id() {
1079
			return $this->iid;
1080
		}
1081
	}
1082
}