1: <?php
2: /**
3: * Zend Framework
4: *
5: * LICENSE
6: *
7: * This source file is subject to the new BSD license that is bundled
8: * with this package in the file LICENSE.txt.
9: * It is also available through the world-wide-web at this URL:
10: * http://framework.zend.com/license/new-bsd
11: * If you did not receive a copy of the license and are unable to
12: * obtain it through the world-wide-web, please send an email
13: * to license@zend.com so we can send you a copy immediately.
14: *
15: * @category Zend
16: * @package Zend_Db
17: * @subpackage Statement
18: * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
19: * @license http://framework.zend.com/license/new-bsd New BSD License
20: * @version $Id: Mysqli.php 20096 2010-01-06 02:05:09Z bkarwin $
21: */
22:
23:
24: /**
25: * @see Zend_Db_Statement
26: */
27: require_once 'Zend/Db/Statement.php';
28:
29:
30: /**
31: * Extends for Mysqli
32: *
33: * @category Zend
34: * @package Zend_Db
35: * @subpackage Statement
36: * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
37: * @license http://framework.zend.com/license/new-bsd New BSD License
38: */
39: class Zend_Db_Statement_Mysqli extends Zend_Db_Statement
40: {
41:
42: /**
43: * Column names.
44: *
45: * @var array
46: */
47: protected $_keys;
48:
49: /**
50: * Fetched result values.
51: *
52: * @var array
53: */
54: protected $_values;
55:
56: /**
57: * @var array
58: */
59: protected $_meta = null;
60:
61: /**
62: * @param string $sql
63: * @return void
64: * @throws Zend_Db_Statement_Mysqli_Exception
65: */
66: public function _prepare($sql)
67: {
68: $mysqli = $this->_adapter->getConnection();
69:
70: $this->_stmt = $mysqli->prepare($sql);
71:
72: if ($this->_stmt === false || $mysqli->errno) {
73: /**
74: * @see Zend_Db_Statement_Mysqli_Exception
75: */
76: require_once 'Zend/Db/Statement/Mysqli/Exception.php';
77: throw new Zend_Db_Statement_Mysqli_Exception("Mysqli prepare error: " . $mysqli->error, $mysqli->errno);
78: }
79: }
80:
81: /**
82: * Binds a parameter to the specified variable name.
83: *
84: * @param mixed $parameter Name the parameter, either integer or string.
85: * @param mixed $variable Reference to PHP variable containing the value.
86: * @param mixed $type OPTIONAL Datatype of SQL parameter.
87: * @param mixed $length OPTIONAL Length of SQL parameter.
88: * @param mixed $options OPTIONAL Other options.
89: * @return bool
90: * @throws Zend_Db_Statement_Mysqli_Exception
91: */
92: protected function _bindParam($parameter, &$variable, $type = null, $length = null, $options = null)
93: {
94: return true;
95: }
96:
97: /**
98: * Closes the cursor and the statement.
99: *
100: * @return bool
101: */
102: public function close()
103: {
104: if ($this->_stmt) {
105: $r = $this->_stmt->close();
106: $this->_stmt = null;
107: return $r;
108: }
109: return false;
110: }
111:
112: /**
113: * Closes the cursor, allowing the statement to be executed again.
114: *
115: * @return bool
116: */
117: public function closeCursor()
118: {
119: if ($stmt = $this->_stmt) {
120: $mysqli = $this->_adapter->getConnection();
121: while ($mysqli->more_results()) {
122: $mysqli->next_result();
123: }
124: $this->_stmt->free_result();
125: return $this->_stmt->reset();
126: }
127: return false;
128: }
129:
130: /**
131: * Returns the number of columns in the result set.
132: * Returns null if the statement has no result set metadata.
133: *
134: * @return int The number of columns.
135: */
136: public function columnCount()
137: {
138: if (isset($this->_meta) && $this->_meta) {
139: return $this->_meta->field_count;
140: }
141: return 0;
142: }
143:
144: /**
145: * Retrieves the error code, if any, associated with the last operation on
146: * the statement handle.
147: *
148: * @return string error code.
149: */
150: public function errorCode()
151: {
152: if (!$this->_stmt) {
153: return false;
154: }
155: return substr($this->_stmt->sqlstate, 0, 5);
156: }
157:
158: /**
159: * Retrieves an array of error information, if any, associated with the
160: * last operation on the statement handle.
161: *
162: * @return array
163: */
164: public function errorInfo()
165: {
166: if (!$this->_stmt) {
167: return false;
168: }
169: return array(
170: substr($this->_stmt->sqlstate, 0, 5),
171: $this->_stmt->errno,
172: $this->_stmt->error,
173: );
174: }
175:
176: /**
177: * Executes a prepared statement.
178: *
179: * @param array $params OPTIONAL Values to bind to parameter placeholders.
180: * @return bool
181: * @throws Zend_Db_Statement_Mysqli_Exception
182: */
183: public function _execute(array $params = null)
184: {
185: if (!$this->_stmt) {
186: return false;
187: }
188:
189: // if no params were given as an argument to execute(),
190: // then default to the _bindParam array
191: if ($params === null) {
192: $params = $this->_bindParam;
193: }
194: // send $params as input parameters to the statement
195: if ($params) {
196: array_unshift($params, str_repeat('s', count($params)));
197: $stmtParams = array();
198: foreach ($params as $k => &$value) {
199: $stmtParams[$k] = &$value;
200: }
201: call_user_func_array(
202: array($this->_stmt, 'bind_param'),
203: $stmtParams
204: );
205: }
206:
207: // execute the statement
208: $retval = $this->_stmt->execute();
209: if ($retval === false) {
210: /**
211: * @see Zend_Db_Statement_Mysqli_Exception
212: */
213: require_once 'Zend/Db/Statement/Mysqli/Exception.php';
214: throw new Zend_Db_Statement_Mysqli_Exception("Mysqli statement execute error : " . $this->_stmt->error, $this->_stmt->errno);
215: }
216:
217:
218: // retain metadata
219: if ($this->_meta === null) {
220: $this->_meta = $this->_stmt->result_metadata();
221: if ($this->_stmt->errno) {
222: /**
223: * @see Zend_Db_Statement_Mysqli_Exception
224: */
225: require_once 'Zend/Db/Statement/Mysqli/Exception.php';
226: throw new Zend_Db_Statement_Mysqli_Exception("Mysqli statement metadata error: " . $this->_stmt->error, $this->_stmt->errno);
227: }
228: }
229:
230: // statements that have no result set do not return metadata
231: if ($this->_meta !== false) {
232:
233: // get the column names that will result
234: $this->_keys = array();
235: foreach ($this->_meta->fetch_fields() as $col) {
236: $this->_keys[] = $this->_adapter->foldCase($col->name);
237: }
238:
239: // set up a binding space for result variables
240: $this->_values = array_fill(0, count($this->_keys), null);
241:
242: // set up references to the result binding space.
243: // just passing $this->_values in the call_user_func_array()
244: // below won't work, you need references.
245: $refs = array();
246: foreach ($this->_values as $i => &$f) {
247: $refs[$i] = &$f;
248: }
249:
250: $this->_stmt->store_result();
251: // bind to the result variables
252: call_user_func_array(
253: array($this->_stmt, 'bind_result'),
254: $this->_values
255: );
256: }
257: return $retval;
258: }
259:
260:
261: /**
262: * Fetches a row from the result set.
263: *
264: * @param int $style OPTIONAL Fetch mode for this fetch operation.
265: * @param int $cursor OPTIONAL Absolute, relative, or other.
266: * @param int $offset OPTIONAL Number for absolute or relative cursors.
267: * @return mixed Array, object, or scalar depending on fetch mode.
268: * @throws Zend_Db_Statement_Mysqli_Exception
269: */
270: public function fetch($style = null, $cursor = null, $offset = null)
271: {
272: if (!$this->_stmt) {
273: return false;
274: }
275: // fetch the next result
276: $retval = $this->_stmt->fetch();
277: switch ($retval) {
278: case null: // end of data
279: case false: // error occurred
280: $this->_stmt->reset();
281: return false;
282: default:
283: // fallthrough
284: }
285:
286: // make sure we have a fetch mode
287: if ($style === null) {
288: $style = $this->_fetchMode;
289: }
290:
291: // dereference the result values, otherwise things like fetchAll()
292: // return the same values for every entry (because of the reference).
293: $values = array();
294: foreach ($this->_values as $key => $val) {
295: $values[] = $val;
296: }
297:
298: $row = false;
299: switch ($style) {
300: case Zend_Db::FETCH_NUM:
301: $row = $values;
302: break;
303: case Zend_Db::FETCH_ASSOC:
304: $row = array_combine($this->_keys, $values);
305: break;
306: case Zend_Db::FETCH_BOTH:
307: $assoc = array_combine($this->_keys, $values);
308: $row = array_merge($values, $assoc);
309: break;
310: case Zend_Db::FETCH_OBJ:
311: $row = (object) array_combine($this->_keys, $values);
312: break;
313: case Zend_Db::FETCH_BOUND:
314: $assoc = array_combine($this->_keys, $values);
315: $row = array_merge($values, $assoc);
316: return $this->_fetchBound($row);
317: break;
318: default:
319: /**
320: * @see Zend_Db_Statement_Mysqli_Exception
321: */
322: require_once 'Zend/Db/Statement/Mysqli/Exception.php';
323: throw new Zend_Db_Statement_Mysqli_Exception("Invalid fetch mode '$style' specified");
324: break;
325: }
326: return $row;
327: }
328:
329: /**
330: * Retrieves the next rowset (result set) for a SQL statement that has
331: * multiple result sets. An example is a stored procedure that returns
332: * the results of multiple queries.
333: *
334: * @return bool
335: * @throws Zend_Db_Statement_Mysqli_Exception
336: */
337: public function nextRowset()
338: {
339: /**
340: * @see Zend_Db_Statement_Mysqli_Exception
341: */
342: require_once 'Zend/Db/Statement/Mysqli/Exception.php';
343: throw new Zend_Db_Statement_Mysqli_Exception(__FUNCTION__.'() is not implemented');
344: }
345:
346: /**
347: * Returns the number of rows affected by the execution of the
348: * last INSERT, DELETE, or UPDATE statement executed by this
349: * statement object.
350: *
351: * @return int The number of rows affected.
352: */
353: public function rowCount()
354: {
355: if (!$this->_adapter) {
356: return false;
357: }
358: $mysqli = $this->_adapter->getConnection();
359: return $mysqli->affected_rows;
360: }
361:
362: }