MySQLiDriver::getReferences() - Code Metrics - Inspection of "tests :fire: & coverage :bikini:" - chillerlan/php-database - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 612476...c205d6 )

by smiley

created 2017-06-02 01:49 UTC

MySQLiDriver::getReferences() A

↳ Parent: MySQLiDriver

Complexity

Conditions	4
Paths	4

Size

Total Lines	19
Code Lines	11

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	19
rs	9.2
c	0
b	0
f	0
cc	4
eloc	11
nc	4
nop	1

<?php
/**
 * Class MySQLiDriver
 *
 * @filesource   MySQLiDriver.php
 * @created      04.11.2015
 * @package      chillerlan\Database\Drivers\MySQLi
 * @author       Smiley <[email protected]>
 * @copyright    2015 Smiley
 * @license      MIT
 */

namespace chillerlan\Database\Drivers;

use chillerlan\Database\DBException;
use chillerlan\Database\DBResult;
use mysqli;

/**
 *
 */
class MySQLiDriver extends DBDriverAbstract{

	/**
	 * Holds the database resource object
	 *
	 * @var mysqli
	 */
	protected $db;

	/**
	 * Establishes a database connection and returns the connection object
	 *
	 * @return \chillerlan\Database\Drivers\DBDriverInterface
	 * @throws DBException
	 */
	public function connect():DBDriverInterface{

		if($this->db instanceof mysqli){
			return $this;
		}

		try{
			$this->db = mysqli_init();


			$this->db->options(MYSQLI_OPT_CONNECT_TIMEOUT, $this->options->mysqli_timeout);

			// @codeCoverageIgnoreStart
			if($this->options->use_ssl){
				$this->db->ssl_set(
					$this->options->ssl_key,
					$this->options->ssl_cert,
					$this->options->ssl_ca,
					$this->options->ssl_capath,
					$this->options->ssl_cipher
				);
			}
			// @codeCoverageIgnoreEnd

			$this->db->real_connect(
				$this->options->host,
				$this->options->username,
				$this->options->password,
				$this->options->database,
				(int)$this->options->port,
				$this->options->socket
			);

			/**
			 * @see https://mathiasbynens.be/notes/mysql-utf8mb4 How to support full Unicode in MySQL
			 */
			$this->db->set_charset($this->options->mysql_charset);

			return $this;
		}
		catch(\Exception $e){
			throw new DBException('db error: [MySQLiDriver]: '.$e->getMessage());
		}

	}

	/**
	 * Closes a database connection
	 *
	 * @return bool
	 */
	public function disconnect():bool{
		return $this->db->close();
	}

	/**
	 * Returns info about the used php client
	 *
	 * @return string php's database client string
	 */
	public function getClientInfo():string{
		return $this->db->client_info;
	}

	/**
	 * Returns info about the database server
	 *
	 * @return string database's serverinfo string
	 */
	public function getServerInfo():string{
		return $this->db->server_info;
	}

	/**
	 * @param $data
	 *
	 * @return string
	 */
	public function escape($data){
		return $this->db->real_escape_string($data);
	}

	/**
	 * @param string      $sql
	 * @param string|null $index
	 * @param bool        $assoc
	 *
	 * @return bool|\chillerlan\Database\DBResult|\mysqli_result

	 */
	protected function __raw(string $sql, string $index = null, bool $assoc = true){
		$result = $this->db->query($sql);

		if(is_bool($result)){
			return $result;
		}

		$r = $this->getResult([$result, 'fetch_'.($assoc ? 'assoc' : 'row')], [], $index, $assoc);

		$result->free();

		return $r;
	}

	/**
	 * @param string      $sql
	 * @param array       $values
	 * @param string|null $index
	 * @param bool        $assoc
	 *
	 * @return bool|\chillerlan\Database\DBResult
	 */
	protected function __prepared(string $sql, array $values = [], string $index = null, bool $assoc = true){
		$stmt = $this->db->stmt_init();
		$stmt->prepare($sql);

		if(count($values) > 0){
			call_user_func_array([$stmt, 'bind_param'], $this->getReferences($values));
		}

		$stmt->execute();

		$result = $stmt->result_metadata();

		if(is_bool($result)){
			return true; // @todo: returning $result causes trouble on prepared INSERT first line. why???
		}

		// get the columns and their references
		// http://php.net/manual/mysqli-stmt.bind-result.php
		$cols = [];
		$refs = [];

		foreach($result->fetch_fields() as $k => &$field){
foreach ($array as &$itemValue) { }
			$refs[] = &$cols[$assoc ? $field->name : $k];
		}

		call_user_func_array([$stmt, 'bind_result'], $refs);

		// fetch the data
		$output = new DBResult;
		$i      = 0;

		while($stmt->fetch()){
			$row = [];
			$key = $i;

			foreach($cols as $field => &$data){
				$row[$field] = $data;
			}

			if($assoc && !empty($index)){
				$key = $row[$index] ?? $i;
			}

			$output[$key] = $row;
			$i++;
		}

		// KTHXBYE!
		$stmt->free_result();
		$stmt->close();

		return $i === 0 ? true : $output;

		/*

				$this->addStats([
					'affected_rows' => $stmt->affected_rows,
					'error'         => $stmt->error_list,
					'insert_id'     => $stmt->insert_id,
					'sql'           => $sql,
					'values'        => $values,
					'types'         => $types,
					'index'         => $index,
					'assoc'         => $assoc,
				]);
		*/
	}

	/**
	 * @param string $sql
	 * @param array  $values
	 *
	 * @return bool
	 */
	protected function __multi(string $sql, array $values){
		$stmt = $this->db->stmt_init();
		$stmt->prepare($sql);

		foreach($values as $row){
			call_user_func_array([$stmt, 'bind_param'], $this->getReferences($row));

			$stmt->execute();
		}

		$stmt->close();

		return true;
	}

	/**
	 * @param string $sql
	 * @param array  $data
	 * @param        $callback
	 *
	 * @return bool
	 */
	protected function __multi_callback(string $sql, array $data, $callback){
		$stmt = $this->db->stmt_init();
		$stmt->prepare($sql);

		foreach($data as $row){
			if($row = call_user_func_array($callback, [$row])){
				call_user_func_array([$stmt, 'bind_param'], $this->getReferences($row));

				$stmt->execute();
			}
		}

		$stmt->close();

		return true;
	}


	/**
	 * Copies an array to an array of referenced values
	 *
	 * @param array $row
	 *
	 * @return array
	 * @see http://php.net/manual/mysqli-stmt.bind-param.php
	 */
	protected function getReferences(array $row){
		$references = [];
		$types      = [];

		foreach($row as &$field){

			switch(gettype($field)){
				case 'integer': $types[] = 'i'; break;
switch ($expr) {
    case "A": { //wrong
        doSomething();
        break;
    }
    case "B"; //wrong
        doSomething();
        break;
    case "C": //right
        doSomething();
        break;
}
				case 'double' : $types[] = 'd'; break; // @codeCoverageIgnore
switch ($expr) {
    case "A": { //wrong
        doSomething();
        break;
    }
    case "B"; //wrong
        doSomething();
        break;
    case "C": //right
        doSomething();
        break;
}
				default:        $types[] = 's'; break;
switch ($expr) {
    default:
        doSomething(); //right
        break;
}


switch ($expr) {
    default:

        doSomething(); //wrong
        break;
}
			}

			$references[] = &$field;
		}

		array_unshift($references, implode('', $types));

		return $references;
	}

}


Push — master ( 612476...c205d6 )

MySQLiDriver::getReferences() A

Complexity

Size

Duplication

Importance

Available Fixes

1. Do not assign by reference

2. Assign to a local variable first

3. Return a reference

1			<?php
2			/**
3			* Class MySQLiDriver
4			*
5			* @filesource MySQLiDriver.php
6			* @created 04.11.2015
7			* @package chillerlan\Database\Drivers\MySQLi
8			* @author Smiley <[email protected]>
9			* @copyright 2015 Smiley
10			* @license MIT
11			*/
12
13			namespace chillerlan\Database\Drivers;
14
15			use chillerlan\Database\DBException;
16			use chillerlan\Database\DBResult;
17			use mysqli;
18
19			/**
20			*
21			*/
22			class MySQLiDriver extends DBDriverAbstract{
23
24			/**
25			* Holds the database resource object
26			*
27			* @var mysqli
28			*/
29			protected $db;
30
31			/**
32			* Establishes a database connection and returns the connection object
33			*
34			* @return \chillerlan\Database\Drivers\DBDriverInterface
35			* @throws DBException
36			*/
37			public function connect():DBDriverInterface{
38
39			if($this->db instanceof mysqli){
40			return $this;
41			}
42
43			try{
44			$this->db = mysqli_init();
			0 ignored issues – show Documentation Bug introduced 2016-02-22 23:15 UTC by Report Bug Copy Issue Report It seems like `mysqli_init()` of type `object<mysql>` is incompatible with the declared type `object<mysqli>` of property `$db`. Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property. Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property.. Loading history...
45
46			$this->db->options(MYSQLI_OPT_CONNECT_TIMEOUT, $this->options->mysqli_timeout);
47
48			// @codeCoverageIgnoreStart
49			if($this->options->use_ssl){
50			$this->db->ssl_set(
51			$this->options->ssl_key,
52			$this->options->ssl_cert,
53			$this->options->ssl_ca,
54			$this->options->ssl_capath,
55			$this->options->ssl_cipher
56			);
57			}
58			// @codeCoverageIgnoreEnd
59
60			$this->db->real_connect(
61			$this->options->host,
62			$this->options->username,
63			$this->options->password,
64			$this->options->database,
65			(int)$this->options->port,
66			$this->options->socket
67			);
68
69			/**
70			* @see https://mathiasbynens.be/notes/mysql-utf8mb4 How to support full Unicode in MySQL
71			*/
72			$this->db->set_charset($this->options->mysql_charset);
73
74			return $this;
75			}
76			catch(\Exception $e){
77			throw new DBException('db error: [MySQLiDriver]: '.$e->getMessage());
78			}
79
80			}
81
82			/**
83			* Closes a database connection
84			*
85			* @return bool
86			*/
87			public function disconnect():bool{
88			return $this->db->close();
89			}
90
91			/**
92			* Returns info about the used php client
93			*
94			* @return string php's database client string
95			*/
96			public function getClientInfo():string{
97			return $this->db->client_info;
98			}
99
100			/**
101			* Returns info about the database server
102			*
103			* @return string database's serverinfo string
104			*/
105			public function getServerInfo():string{
106			return $this->db->server_info;
107			}
108
109			/**
110			* @param $data
111			*
112			* @return string
113			*/
114			public function escape($data){
115			return $this->db->real_escape_string($data);
116			}
117
118			/**
119			* @param string $sql
120			* @param string\|null $index
121			* @param bool $assoc
122			*
123			* @return bool\|\chillerlan\Database\DBResult\|\mysqli_result
			0 ignored issues – show Documentation introduced 2017-06-01 16:51 UTC by Report Bug Copy Issue Report Consider making the return type a bit more specific; maybe use `boolean\|DBResult`. This check looks for the generic type `array` as a return type and suggests a more specific type. This type is inferred from the actual code. Loading history...
124			*/
125			protected function __raw(string $sql, string $index = null, bool $assoc = true){
126			$result = $this->db->query($sql);
127
128			if(is_bool($result)){
129			return $result;
130			}
131
132			$r = $this->getResult([$result, 'fetch_'.($assoc ? 'assoc' : 'row')], [], $index, $assoc);
133
134			$result->free();
135
136			return $r;
137			}
138
139			/**
140			* @param string $sql
141			* @param array $values
142			* @param string\|null $index
143			* @param bool $assoc
144			*
145			* @return bool\|\chillerlan\Database\DBResult
146			*/
147			protected function __prepared(string $sql, array $values = [], string $index = null, bool $assoc = true){
148			$stmt = $this->db->stmt_init();
149			$stmt->prepare($sql);
150
151			if(count($values) > 0){
152			call_user_func_array([$stmt, 'bind_param'], $this->getReferences($values));
153			}
154
155			$stmt->execute();
156
157			$result = $stmt->result_metadata();
158
159			if(is_bool($result)){
160			return true; // @todo: returning $result causes trouble on prepared INSERT first line. why???
161			}
162
163			// get the columns and their references
164			// http://php.net/manual/mysqli-stmt.bind-result.php
165			$cols = [];
166			$refs = [];
167
168			foreach($result->fetch_fields() as $k => &$field){
			0 ignored issues – show Bug introduced 2016-03-04 01:33 UTC by Report Bug Copy Issue Report The expression `$result->fetch_fields()` cannot be used as a reference. Let?s assume that you have the following `foreach` statement: foreach ($array as &$itemValue) { } `$itemValue` is assigned by reference. This is possible because the expression (in the example `$array`) can be used as a reference target. However, if we were to replace `$array` with something different like the result of a function call as in foreach (getArray() as &$itemValue) { } then assigning by reference is not possible anymore as there is no target that could be modified. Available Fixes 1. Do not assign by reference foreach (getArray() as $itemValue) { } 2. Assign to a local variable first $array = getArray(); foreach ($array as &$itemValue) {} 3. Return a reference function &getArray() { $array = array(); return $array; } foreach (getArray() as &$itemValue) { } Loading history...
169			$refs[] = &$cols[$assoc ? $field->name : $k];
170			}
171
172			call_user_func_array([$stmt, 'bind_result'], $refs);
173
174			// fetch the data
175			$output = new DBResult;
176			$i = 0;
177
178			while($stmt->fetch()){
179			$row = [];
180			$key = $i;
181
182			foreach($cols as $field => &$data){
183			$row[$field] = $data;
184			}
185
186			if($assoc && !empty($index)){
187			$key = $row[$index] ?? $i;
188			}
189
190			$output[$key] = $row;
191			$i++;
192			}
193
194			// KTHXBYE!
195			$stmt->free_result();
196			$stmt->close();
197
198			return $i === 0 ? true : $output;
199
200			/*
			0 ignored issues – show Unused Code Comprehensibility introduced 2017-06-01 16:51 UTC by Report Bug Copy Issue Report `59%` of this comment could be valid code. Did you maybe forget this after debugging? Sometimes obsolete code just ends up commented out instead of removed. In this case it is better to remove the code once you have checked you do not need it. The code might also have been commented out for debugging purposes. In this case it is vital that someone uncomments it again or your project may behave in very unexpected ways in production. This check looks for comments that seem to be mostly valid code and reports them. Loading history...
201			$this->addStats([
202			'affected_rows' => $stmt->affected_rows,
203			'error' => $stmt->error_list,
204			'insert_id' => $stmt->insert_id,
205			'sql' => $sql,
206			'values' => $values,
207			'types' => $types,
208			'index' => $index,
209			'assoc' => $assoc,
210			]);
211			*/
212			}
213
214			/**
215			* @param string $sql
216			* @param array $values
217			*
218			* @return bool
219			*/
220			protected function __multi(string $sql, array $values){
221			$stmt = $this->db->stmt_init();
222			$stmt->prepare($sql);
223
224			foreach($values as $row){
225			call_user_func_array([$stmt, 'bind_param'], $this->getReferences($row));
226
227			$stmt->execute();
228			}
229
230			$stmt->close();
231
232			return true;
233			}
234
235			/**
236			* @param string $sql
237			* @param array $data
238			* @param $callback
239			*
240			* @return bool
241			*/
242			protected function __multi_callback(string $sql, array $data, $callback){
243			$stmt = $this->db->stmt_init();
244			$stmt->prepare($sql);
245
246			foreach($data as $row){
247			if($row = call_user_func_array($callback, [$row])){
248			call_user_func_array([$stmt, 'bind_param'], $this->getReferences($row));
249
250			$stmt->execute();
251			}
252			}
253
254			$stmt->close();
255
256			return true;
257			}
258
259
260			/**
261			* Copies an array to an array of referenced values
262			*
263			* @param array $row
264			*
265			* @return array
266			* @see http://php.net/manual/mysqli-stmt.bind-param.php
267			*/
268			protected function getReferences(array $row){
269			$references = [];
270			$types = [];
271
272			foreach($row as &$field){
273
274			switch(gettype($field)){
275			case 'integer': $types[] = 'i'; break;
			0 ignored issues – show Coding Style introduced 2017-06-02 01:52 UTC by Report Bug Copy Issue Report `case` statements should be defined using a colon. As per the PSR-2 coding standard, case statements should not be wrapped in curly braces. There is no need for braces, since each case is terminated by the next `break`. There is also the option to use a semicolon instead of a colon, this is discouraged because many programmers do not even know it works and the colon is universal between programming languages. switch ($expr) { case "A": { //wrong doSomething(); break; } case "B"; //wrong doSomething(); break; case "C": //right doSomething(); break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history...
276			case 'double' : $types[] = 'd'; break; // @codeCoverageIgnore
			0 ignored issues – show Coding Style introduced 2017-06-02 01:52 UTC by Report Bug Copy Issue Report `case` statements should be defined using a colon. As per the PSR-2 coding standard, case statements should not be wrapped in curly braces. There is no need for braces, since each case is terminated by the next `break`. There is also the option to use a semicolon instead of a colon, this is discouraged because many programmers do not even know it works and the colon is universal between programming languages. switch ($expr) { case "A": { //wrong doSomething(); break; } case "B"; //wrong doSomething(); break; case "C": //right doSomething(); break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history...
277			default: $types[] = 's'; break;
			0 ignored issues – show Coding Style introduced 2017-06-02 01:52 UTC by Report Bug Copy Issue Report The default body in a switch statement must start on the line following the statement. According to the PSR-2, the body of a default statement must start on the line immediately following the statement. switch ($expr) { default: doSomething(); //right break; } switch ($expr) { default: doSomething(); //wrong break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history... Coding Style introduced 2017-06-02 01:52 UTC by Report Bug Copy Issue Report Terminating statement must be on a line by itself As per the PSR-2 coding standard, the `break` (or other terminating) statement must be on a line of its own. switch ($expr) { case "A": doSomething(); break; //wrong case "B": doSomething(); break; //right case "C:": doSomething(); return true; //right } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history...
278			}
279
280			$references[] = &$field;
281			}
282
283			array_unshift($references, implode('', $types));
284
285			return $references;
286			}
287
288			}
289

chillerlan / php-database

Push — master ( 612476...c205d6 )

MySQLiDriver::getReferences() A

Complexity

Size

Duplication

Importance

Available Fixes

1. Do not assign by reference

2. Assign to a local variable first

3. Return a reference

Duplication Side-by-Side

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