MySQLi::free() - Code Metrics - Inspection of "Added support for server-side prepared statements." - nazar-pc/CleverStyle-Framework - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( dabf55...764bc6 )

by Nazar

created 2016-08-01 16:59 UTC

MySQLi::free() A

↳ Parent: MySQLi

Complexity

Conditions	2
Paths	2

Size

Total Lines	6
Code Lines	4

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	4
CRAP Score	2.1481

Importance

Changes	1
Bugs	1	Features	0

Metric	Value
cc	2
eloc	4
nc	2
nop	1
dl	0
loc	6
ccs	4
cts	6
cp	0.6667
crap	2.1481
rs	9.4285
c	1
b	1
f	0

<?php
/**
 * @package   CleverStyle Framework
 * @author    Nazar Mokrynskyi <[email protected]>
 * @copyright Copyright (c) 2011-2016, Nazar Mokrynskyi
 * @license   MIT License, see license.txt
 */
namespace cs\DB;
use
	mysqli_result;

class MySQLi extends _Abstract {
	/**
	 * @var \MySQLi Instance of DB connection
	 */
	protected $instance;
	/**
	 * @inheritdoc
	 */
	public function __construct ($database, $user = '', $password = '', $host = 'localhost', $prefix = '') {
		$start = microtime(true);
		/**
		 * Parsing of $host variable, detecting port and persistent connection
		 */
		list($host, $port) = $this->get_host_and_port($host);
		$this->instance = new \MySQLi($host, $user, $password, $database, $port);
		if (!is_object($this->instance) || $this->instance->connect_errno) {
			return;
		}
		$this->database = $database;
		/**
		 * Changing DB charset if necessary
		 */
		if ($this->instance->character_set_name() != 'utf8mb4') {
			$this->instance->set_charset('utf8mb4');
		}
		$this->connected       = true;
		$this->connecting_time = microtime(true) - $start;
		$this->db_type         = 'mysql';
		$this->prefix          = $prefix;
	}
	/**
	 * Parse host string into host and port separately
	 *
	 * Understands `p:` prefix for persistent connections
	 *
	 * @param string $host_string
	 *
	 * @return array
	 */
	protected function get_host_and_port ($host_string) {
		$host = explode(':', $host_string);
		$port = ini_get('mysqli.default_port') ?: 3306;
		switch (count($host)) {
			case 1:
				$host = $host[0];
				break;
			case 2:
				if ($host[0] == 'p') {
					$host = "$host[0]:$host[1]";
				} else {
					list($host, $port) = $host;
				}
				break;
			case 3:
				$port = $host[2];
				$host = "$host[0]:$host[1]";
		}
		return [$host, $port];
	}
	/**
	 * @inheritdoc
	 *
	 * @return false|mysqli_result
	 */
	protected function q_internal ($query, $parameters = []) {
		if (!$query) {
			return false;
		}
		for ($i = 0; $i < 2; ++$i) {
			if ($parameters) {
				$stmt = $this->instance->prepare($query);
				$stmt->bind_param(
					str_repeat('s', count($parameters)),
					...$parameters
				);
				$stmt->execute();
				$result = $stmt->get_result();
			} else {
				$result = $this->instance->query($query);
			}
			// In case of MySQL Client error - try to fix everything, but only once
			if (
				$result ||
				$this->instance->errno < 2000 ||
				!$this->instance->ping()
			) {
				break;
			}
		}
		/** @noinspection PhpUndefinedVariableInspection */
		return $result;
	}
	/**
	 * @inheritdoc
	 *
	 * @param false|mysqli_result $query_result
	 */
	public function f ($query_result, $single_column = false, $array = false, $indexed = false) {
		if (!($query_result instanceof mysqli_result)) {
			return false;
		}
		$result_type = $single_column || $indexed ? MYSQLI_NUM : MYSQLI_ASSOC;
		if ($array) {
			$result = [];
			while ($current = $query_result->fetch_array($result_type)) {
				$result[] = $single_column ? $current[0] : $current;
			}
			$this->free($query_result);
			return $result;
		}
		$result = $query_result->fetch_array($result_type);
		if ($result === null) {
			$result = false;
		}
		return $single_column && $result ? $result[0] : $result;
	}
	/**
	 * @inheritdoc
	 */
	public function id () {
		return $this->instance->insert_id;
	}
	/**
	 * @inheritdoc
	 */
	public function affected () {
		return $this->instance->affected_rows;
	}
	/**
	 * @inheritdoc
	 *
	 * @param false|mysqli_result $query_result
	 */
	public function free ($query_result) {
		if ($query_result instanceof mysqli_result) {
			$query_result->free();
		}
		return true;
	}
	/**
	 * @inheritdoc
	 */
	public function columns ($table, $like = false) {
		if (!$table) {
			return false;
		}
		if ($like) {
			$like    = $this->s($like);
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
			$columns = $this->qfas("SHOW COLUMNS FROM `$table` LIKE $like") ?: [];
		} else {
			$columns = $this->qfas("SHOW COLUMNS FROM `$table`") ?: [];
		}
		return $columns;
	}
	/**
	 * @inheritdoc
	 */
	public function tables ($like = false) {
		if ($like) {
			$like = $this->s($like);
			return $this->qfas("SHOW TABLES FROM `$this->database` LIKE $like") ?: [];
		} else {
			return $this->qfas("SHOW TABLES FROM `$this->database`") ?: [];
		}
	}
	/**
	 * @inheritdoc
	 */
	protected function s_internal ($string, $single_quotes_around) {
		$return = $this->instance->real_escape_string($string);
		return $single_quotes_around ? "'$return'" : $return;
	}
	/**
	 * @inheritdoc
	 */
	public function server () {
		return $this->instance->server_info;
	}
	/**
	 * @inheritdoc
	 */
	public function __destruct () {
		if ($this->connected && is_object($this->instance)) {
			$this->instance->close();
			$this->connected = false;
		}
	}
}


1		<?php
2		/**
3		* @package CleverStyle Framework
4		* @author Nazar Mokrynskyi <[email protected]>
5		* @copyright Copyright (c) 2011-2016, Nazar Mokrynskyi
6		* @license MIT License, see license.txt
7		*/
8		namespace cs\DB;
9		use
10		mysqli_result;
11
12		class MySQLi extends _Abstract {
13		/**
14		* @var \MySQLi Instance of DB connection
15		*/
16		protected $instance;
17		/**
18		* @inheritdoc
19		*/
20	22	public function __construct ($database, $user = '', $password = '', $host = 'localhost', $prefix = '') {
21	22	$start = microtime(true);
22		/**
23		* Parsing of $host variable, detecting port and persistent connection
24		*/
25	22	list($host, $port) = $this->get_host_and_port($host);
26	22	$this->instance = new \MySQLi($host, $user, $password, $database, $port);
27	22	if (!is_object($this->instance) \|\| $this->instance->connect_errno) {
28	1	return;
29		}
30	22	$this->database = $database;
31		/**
32		* Changing DB charset if necessary
33		*/
34	22	if ($this->instance->character_set_name() != 'utf8mb4') {
35	22	$this->instance->set_charset('utf8mb4');
36		}
37	22	$this->connected = true;
38	22	$this->connecting_time = microtime(true) - $start;
39	22	$this->db_type = 'mysql';
40	22	$this->prefix = $prefix;
41	22	}
42		/**
43		* Parse host string into host and port separately
44		*
45		* Understands `p:` prefix for persistent connections
46		*
47		* @param string $host_string
48		*
49		* @return array
50		*/
51	22	protected function get_host_and_port ($host_string) {
52	22	$host = explode(':', $host_string);
53	22	$port = ini_get('mysqli.default_port') ?: 3306;
54	22	switch (count($host)) {
55	22	case 1:
56	22	$host = $host[0];
57	22	break;
58	1	case 2:
59	1	if ($host[0] == 'p') {
60	1	$host = "$host[0]:$host[1]";
61		} else {
62	1	list($host, $port) = $host;
63		}
64	1	break;
65	1	case 3:
66	1	$port = $host[2];
67	1	$host = "$host[0]:$host[1]";
68		}
69	22	return [$host, $port];
70		}
71		/**
72		* @inheritdoc
73		*
74		* @return false\|mysqli_result
75		*/
76	22	protected function q_internal ($query, $parameters = []) {
77	22	if (!$query) {
78	1	return false;
79		}
80	22	for ($i = 0; $i < 2; ++$i) {
81	22	if ($parameters) {
82	1	$stmt = $this->instance->prepare($query);
83	1	$stmt->bind_param(
84	1	str_repeat('s', count($parameters)),
85	1	...$parameters
86		);
87	1	$stmt->execute();
88	1	$result = $stmt->get_result();
89		} else {
90	22	$result = $this->instance->query($query);
91		}
92		// In case of MySQL Client error - try to fix everything, but only once
93		if (
94	22	$result \|\|
95		$this->instance->errno < 2000 \|\|
96	22	!$this->instance->ping()
97		) {
98	22	break;
99		}
100		}
101		/** @noinspection PhpUndefinedVariableInspection */
102	22	return $result;
103		}
104		/**
105		* @inheritdoc
106		*
107		* @param false\|mysqli_result $query_result
108		*/
109	21	public function f ($query_result, $single_column = false, $array = false, $indexed = false) {
110	21	if (!($query_result instanceof mysqli_result)) {
111	1	return false;
112		}
113	21	$result_type = $single_column \|\| $indexed ? MYSQLI_NUM : MYSQLI_ASSOC;
114	21	if ($array) {
115	18	$result = [];
116	18	while ($current = $query_result->fetch_array($result_type)) {
117	18	$result[] = $single_column ? $current[0] : $current;
118		}
119	18	$this->free($query_result);
120	18	return $result;
121		}
122	20	$result = $query_result->fetch_array($result_type);
123	20	if ($result === null) {
124	15	$result = false;
125		}
126	20	return $single_column && $result ? $result[0] : $result;
127		}
128		/**
129		* @inheritdoc
130		*/
131	15	public function id () {
132	15	return $this->instance->insert_id;
133		}
134		/**
135		* @inheritdoc
136		*/
137	1	public function affected () {
138	1	return $this->instance->affected_rows;
139		}
140		/**
141		* @inheritdoc
142		*
143		* @param false\|mysqli_result $query_result
144		*/
145	18	public function free ($query_result) {
146	18	if ($query_result instanceof mysqli_result) {
147	18	$query_result->free();
148		}
149	18	return true;
150		}
151		/**
152		* @inheritdoc
153		*/
154	2	public function columns ($table, $like = false) {
155	2	if (!$table) {
156	1	return false;
157		}
158	2	if ($like) {
159	1	$like = $this->s($like);
		1 ignored issue – show Documentation introduced 2016-08-01 17:14 UTC by Report Bug Copy Issue Report `$like` is of type `boolean`, but the function expects a `string\|array<integer,string>`. It seems like the type of the argument is not accepted by the function/method which you are calling. In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug. We suggest to add an explicit type cast like in the following example: function acceptsInteger($int) { } $x = '123'; // string "123" // Instead of acceptsInteger($x); // we recommend to use acceptsInteger((integer) $x); Loading history...
160	1	$columns = $this->qfas("SHOW COLUMNS FROM `$table` LIKE $like") ?: [];
161		} else {
162	2	$columns = $this->qfas("SHOW COLUMNS FROM `$table`") ?: [];
163		}
164	2	return $columns;
165		}
166		/**
167		* @inheritdoc
168		*/
169	1	public function tables ($like = false) {
170	1	if ($like) {
171	1	$like = $this->s($like);
172	1	return $this->qfas("SHOW TABLES FROM `$this->database` LIKE $like") ?: [];
173		} else {
174	1	return $this->qfas("SHOW TABLES FROM `$this->database`") ?: [];
175		}
176		}
177		/**
178		* @inheritdoc
179		*/
180	22	protected function s_internal ($string, $single_quotes_around) {
181	22	$return = $this->instance->real_escape_string($string);
182	22	return $single_quotes_around ? "'$return'" : $return;
183		}
184		/**
185		* @inheritdoc
186		*/
187	1	public function server () {
188	1	return $this->instance->server_info;
189		}
190		/**
191		* @inheritdoc
192		*/
193	2	public function __destruct () {
194	2	if ($this->connected && is_object($this->instance)) {
195	2	$this->instance->close();
196	2	$this->connected = false;
197		}
198	2	}
199		}
200

nazar-pc / CleverStyle-Framework

Push — master ( dabf55...764bc6 )

MySQLi::free() A

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Duplication

Code Coverage

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