MySQL::getFieldType() - Code Metrics - Inspection of "Fix length of SET values" - dshafik/php7-mysql-shim - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 0c0c29...3b7e97 )

by Davey

created 2015-12-06 18:03 UTC

MySQL::getFieldType() D

↳ Parent: MySQL

Complexity

Conditions	33
Paths	33

Size

Total Lines	44
Code Lines	41

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	5
CRAP Score	762.5449

Metric	Value
dl	0
loc	44
ccs	5
cts	40
cp	0.125
rs	4.5202
cc	33
eloc	41
nc	33
nop	1
crap	762.5449

How to fix Complexity

<?php
namespace {

    if (!function_exists('\mysql_connect')) {
        define('MYSQL_CLIENT_COMPRESS', MYSQLI_CLIENT_COMPRESS);
        define('MYSQL_CLIENT_IGNORE_SPACE', MYSQLI_CLIENT_IGNORE_SPACE);
        define('MYSQL_CLIENT_INTERACTIVE', MYSQLI_CLIENT_INTERACTIVE);
        define('MYSQL_CLIENT_SSL', MYSQLI_CLIENT_SSL);

        function mysql_connect(
            $hostname = null,
            $username = null,
            $password = null,
            $new = false,
            $flags = 0
        ) {
            if ($new !== false) {
                trigger_error('Argument $new is no longer supported in PHP > 7', E_USER_WARNING);
            }

            $hash = sha1($hostname . $username . $flags);
            if ($hostname{1} != ':' && isset(\Dshafik\MySQL::$connections[$hash])) {
                \Dshafik\MySQL::$last_connection = \Dshafik\MySQL::$connections[$hash]['conn'];
                \Dshafik\MySQL::$connections[$hash]['refcount'] += 1;
                return \Dshafik\MySQL::$connections[$hash]['conn'];
            }

            if ($flags === 0) {
                \Dshafik\MySQL::$last_connection = $conn = mysqli_connect($hostname, $username, $password);
                $conn->hash = $hash;
                \Dshafik\MySQL::$connections[$hash] = ['refcount' => 1, 'conn' => $conn];

                return $conn;
            }

            try {
                \Dshafik\MySQL::$last_connection = $conn = mysqli_init();

                mysqli_real_connect(
                    $conn,
                    $hostname,
                    $username,
                    $password,
                    '',
                    null,
                    '',
                    $flags
                );

                // @codeCoverageIgnoreStart
                // PHPUnit turns the warning from mysqli_real_connect into an exception, so this never runs
                if ($conn === false) {
                    return false;
                }
                // @codeCoverageIgnoreEnd

                $conn->hash = $hash;
                \Dshafik\MySQL::$connections[$hash] = ['refcount' => 1, 'conn' => $conn];

                return $conn;
            } catch (\Throwable $e) {
                trigger_error($e->getMessage(), E_USER_WARNING);
                // @codeCoverageIgnoreStart
                // PHPUnit turns the warning into an exception, so this never runs
                return false;
                // @codeCoverageIgnoreEnd
            }
        }

        function mysql_pconnect(
            $hostname = null,
            $username = null,
            $password = null,
            $flags = 0
        ) {
            $hostname = 'p:' . $hostname;
            return mysql_connect($hostname, $username, $password, false, $flags);
        }

        function mysql_close(\mysqli $link = null)
        {
            $isDefault = ($link === null);

            $link = \Dshafik\MySQL::getConnection($link, __FUNCTION__);
            if ($link === null) {
                // @codeCoverageIgnoreStart
                // PHPUnit Warning -> Exception
                return false;
                // @codeCoverageIgnoreEnd
            }

            if (isset(\Dshafik\MySQL::$connections[$link->hash])) {
                \Dshafik\MySQL::$connections[$link->hash]['refcount'] -= 1;
            }

            $return = true;
            if (\Dshafik\MySQL::$connections[$link->hash]['refcount'] == 0) {
                $return = mysqli_close($link);
                unset(\Dshafik\MySQL::$connections[$link->hash]);
            }

            if ($isDefault) {
                Dshafik\MySQL::$last_connection = null;
            }

            return $return;
        }

        function mysql_select_db($databaseName, \mysqli $link = null)
        {
            $link = \Dshafik\MySQL::getConnection($link);

            return mysqli_query(
                $link,
                "USE " . mysqli_real_escape_string($link, $databaseName)
            ) !== false;
        }

        function mysql_query($query, \mysqli $link = null)
        {
            return mysqli_query(\Dshafik\MySQL::getConnection($link), $query);
        }

        function mysql_unbuffered_query($query, \mysqli $link = null)
        {
            $link = \Dshafik\MySQL::getConnection($link);
            if (mysqli_real_query($link, $query)) {
                return mysqli_use_result($link);
            }

            return false;
        }

        function mysql_db_query($databaseName, $query, \mysqli $link = null)
        {
            if (mysql_select_db($databaseName, $link)) {
                return mysql_query($query, $link);
            }
            return false;
        }

        function mysql_list_dbs(\mysqli $link = null)
        {
            return mysql_query("SHOW DATABASES", $link);
        }

        function mysql_list_tables($databaseName, \mysqli $link = null)
        {
            $link = \Dshafik\MySQL::getConnection($link);
            return mysql_query("SHOW TABLES FROM " . mysql_real_escape_string($databaseName, $link), $link);
        }

        function mysql_list_fields($databaseName, $tableName, \mysqli $link = null)
        {
            $link = \Dshafik\MySQL::getConnection($link);
            $result = mysql_query(
                "SHOW FULL COLUMNS FROM " .
                mysqli_real_escape_string($link, $databaseName) . "." .
                mysqli_real_escape_string($link, $tableName),
                $link
            );
            if ($result instanceof \mysqli_result) {
                $result->table = $tableName;
            }
            return $result;
        }

        function mysql_list_processes(\mysqli $link = null)
        {
            return mysql_query("SHOW PROCESSLIST", $link);
        }

        function mysql_error(\mysqli $link = null)
        {
            return mysqli_error(\Dshafik\MySQL::getConnection($link));
        }

        function mysql_errno(\mysqli $link = null)
        {
            return mysqli_errno(\Dshafik\MySQL::getConnection($link));
        }

        function mysql_affected_rows(\mysqli $link = null)
        {
            return mysqli_affected_rows(\Dshafik\MySQL::getConnection($link));
        }

        function mysql_insert_id($link = null) /*|*/
        {
            return mysqli_insert_id(\Dshafik\MySQL::getConnection($link));
        }

        function mysql_result(\mysqli_result $result, $row, $field = 0)
        {
            if (!mysqli_data_seek($result, $row)) {
                return false;
            }

            if ($row = mysqli_fetch_array($result) === false) {
                return false;
            }

            if (isset($row[$field])) {
                return $row[$field];
            }

            return false;
        }

        function mysql_num_rows(\mysqli_result $result)
        {
            $previous = error_reporting(0);
            $rows = mysqli_num_rows($result);
            error_reporting($previous);

            return $rows;
        }

        function mysql_num_fields($result)
        {
            if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
                return false;
            }
            return mysqli_num_fields($result);
        }

        function mysql_fetch_row($result) /* : array|null */
        {
            if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
                return false;
            }
            return mysqli_fetch_row($result);
        }

        function mysql_fetch_array($result) /* : array|null */
        {
            if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
                return false;
            }
            return mysqli_fetch_array($result);
        }

        function mysql_fetch_assoc($result) /* : array|null */
        {
            if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
                return false;
            }
            return mysqli_fetch_assoc($result);
        }

        function mysql_fetch_object($result, $class = null, array $params = []) /* : object|null */
        {
            if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
                return false;
            }

            if ($class == null) {
                return mysqli_fetch_object($result);
            }

            return mysqli_fetch_object($result, $class, $params);
        }

        function mysql_data_seek($result, $offset)
        {
            if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
                return false;
            }
            return mysqli_data_seek($result, $offset);
        }

        function mysql_fetch_lengths($result) /* : array|*/
        {
            if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
                return false;
            }
            return mysqli_fetch_lengths($result);
        }

        function mysql_fetch_field($result) /* : object|*/
        {
            if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
                return false;
            }
            return mysqli_fetch_field($result);
        }

        function mysql_field_seek($result, $field)
        {
            if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
                return false;
            }
            return mysqli_field_seek($result, $field);
        }

        function mysql_free_result($result)
        {
            if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
                return false;
            }
            return mysqli_free_result($result);
        }

        function mysql_field_name($result, $field)
        {
            if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
                return false;
            }
            return \Dshafik\MySQL::mysqlFieldInfo($result, $field, 'name');
        }

        function mysql_field_table($result, $field)
        {
            if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
                return false;
            }
            return \Dshafik\MySQL::mysqlFieldInfo($result, $field, 'table');
        }

        function mysql_field_len($result, $field)
        {
            if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
                return false;
            }
            return \Dshafik\MySQL::mysqlFieldInfo($result, $field, 'length');
        }

        function mysql_field_type($result, $field)
        {
            if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
                return false;
            }
            return \Dshafik\MySQL::mysqlFieldInfo($result, $field, 'type');
        }

        function mysql_field_flags($result, $field)
        {
            if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
                return false;
            }
            return \Dshafik\MySQL::mysqlFieldInfo($result, $field, 'flags');
        }

        function mysql_escape_string($unescapedString)
        {
            return mysql_real_escape_string($unescapedString, null);
        }

        function mysql_real_escape_string($unescapedString, \mysqli $link = null)
        {
            return mysqli_escape_string(\Dshafik\MySQL::getConnection($link), $unescapedString);
        }

        function mysql_stat(\mysqli $link = null)
        {
            return mysqli_stat(\Dshafik\MySQL::getConnection($link));
        }

        function mysql_thread_id(\mysqli $link = null)
        {
            return mysqli_thread_id(\Dshafik\MySQL::getConnection($link));
        }

        function mysql_client_encoding(\mysqli $link = null)
        {
            return mysqli_character_set_name(\Dshafik\MySQL::getConnection($link));
        }

        function mysql_ping(\mysqli $link = null)
        {
            return mysqli_ping($link);
        }

        function mysql_get_client_info(\mysqli $link = null)
        {
            return mysqli_get_client_info(\Dshafik\MySQL::getConnection($link));
        }

        function mysql_get_host_info(\mysqli $link = null)
        {
            return mysqli_get_host_info(\Dshafik\MySQL::getConnection($link));
        }

        function mysql_get_proto_info(\mysqli $link = null)
        {
            return mysqli_get_proto_info(\Dshafik\MySQL::getConnection($link));
        }

        function mysql_get_server_info(\mysqli $link = null)
        {
            return mysqli_get_server_info(\Dshafik\MySQL::getConnection($link));
        }

        function mysql_info(\mysqli $link = null)
        {
            return mysqli_info(\Dshafik\MySQL::getConnection($link));
        }

        function mysql_set_charset($charset, \mysqli $link = null)
        {
            return mysqli_set_charset(\Dshafik\MySQL::getConnection($link), $charset);
        }

        function mysql_db_name($result)
        {
            if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
                return false;
            }
            return mysqli_fetch_row($result)['Database'];
        }

        function mysql_table_name($result)
        {
            if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
                return false;
            }
            return mysqli_fetch_row($result)['Table'];
        }

        /* Aliases */

        function mysql_fieldname(... $args)
        {
            return mysql_field_name(... $args);

        }

        function mysql_fieldtable(... $args)
        {
            return mysql_field_table(... $args);

        }

        function mysql_fieldlen(... $args)
        {
            return mysql_field_len(... $args);

        }

        function mysql_fieldtype(... $args)
        {
            return mysql_field_type(... $args);

        }

        function mysql_fieldflags(... $args)
        {
            return mysql_field_flags(... $args);
        }

        function mysql_selectdb(... $args)
        {
            return mysql_select_db(... $args);
        }

        function mysql_freeresult(... $args)
        {
            return mysql_free_result(... $args);
        }

        function mysql_numfields(... $args)
        {
            return mysql_num_fields(... $args);
        }

        function mysql_numrows(... $args)
        {
            return mysql_num_rows(... $args);
        }

        function mysql_listdbs(... $args)
        {
            return mysql_list_dbs(... $args);
        }

        function mysql_listtables(... $args)
        {
            return mysql_list_tables(... $args);
        }

        function mysql_listfields(... $args)
        {
            return mysql_list_fields(... $args);
        }

        function mysql_dbname(... $args)
        {
            return mysql_db_name(... $args);
        }

        function mysql_tablename(... $args)
        {
            return mysql_table_name(... $args);
        }
    }
}

namespace Dshafik {

    class MySQL
    {
        public static $last_connection = null;
        public static $connections = [];

        public static function getConnection($link = null, $func = null)
        {
            if ($link !== null) {
                return $link;
            }

            if (static::$last_connection === null) {
                $err = "A link to the server could not be established";
                if ($func !== null) {
                    $err = $func . "(): no MySQL-Link resource supplied";
                }
                trigger_error($err, E_USER_WARNING);
                return false;
            }

            return static::$last_connection;
        }

        public static function mysqlFieldInfo(\mysqli_result $result, $field, $what)
        {
            if (!\mysqli_data_seek($result, $field)) {
                trigger_error(
                    sprintf(
                        "mysql_field_name(): Field %d is invalid for MySQL result index %s",
                        $field,
                        spl_object_hash($result)
                    ),
                    E_USER_WARNING
                );
                // @codeCoverageIgnoreStart
                // PHPUnit turns the warning into an exception, so this never runs
                return false;
                // @codeCoverageIgnoreEnd
            }

            $field = \mysql_fetch_assoc($result);

            switch ($what) {
                case "name":
                    return $field['Field'];
                case "table":
                    return $result->table;
                case "length":
                case "type":
                    $matches = [];
                    preg_match("/(?<type>[a-z]+)(?:\((?<length>.+)\))?/", $field['Type'], $matches);
                    if (!isset($matches[$what])) {
                        $matches[$what] = null;
                    }
                    if ($what == 'length') {
                        return static::getFieldLength($matches[$what], $field['Type']);
                    }
                    return static::getFieldType($matches[$what]);
                case "flags":
                    $flags = [];
                    if ($field['Null'] == "NO") {
                        $flags[] = "not_null";
                    }

                    if ($field['Key'] == 'PRI') {
                        $flags[] = "primary_key";
                    }

                    if (strpos($field['Extra'], "auto_increment") !== false) {
                        $flags[] = "auto_increment";
                    }

                    if ($field['Key'] == 'UNI') {
                        $flags[] = "unique_key";
                    }

                    if ($field['Key'] == 'MUL') {
                        $flags[] = "multiple_key";
                    }

                    $type = strtolower($field['Type']);
                    if (in_array(substr($type, -4), ["text", "blob"])) {
                        $flags[] = "blob";
                    }

                    if (substr($type, 0, 4) == "enum") {
                        $flags[] = "enum";
                    }

                    if (substr($type, 0, 3) == "set") {
                        $flags[] = "set";
                    }

                    return implode(" ", $flags);
            }

            return false;
        }

        public static function checkValidResult($result, $function)
        {
            if (!($result instanceof \mysqli_result)) {
                trigger_error(
                    $function . "() expects parameter 1 to be resource, " . gettype($result) . " given",
                    E_USER_WARNING
                );
                return false;
            }
        }

        protected static function getFieldLength($what, $type)
        {
            if (is_numeric($what)) {
                return (int) $what;
            }

            switch ($type) {
                case "text":
                case "blob":
                    return 65535;
                case "longtext":
                case "longblob":
                    return 4294967295;
                case "tinytext":
                case "tinyblob":
                    return 255;
                case "mediumtext":
                case "mediumblob":
                    return 16777215;
            }

            if (strtolower(substr($type, 0, 3)) == "set") {
                return (int)strlen($what)
                - 2                                         // Remove open and closing quotes
                - substr_count($what, "'")              // Remove quotes
                + substr_count($what, "'''")            // Re-add escaped quotes
                + (
                    substr_count(
                        str_replace("''", "", $what), // Remove escaped quotes
                        "'"
                    )
                    / 2                                 // We have two quotes per value
                )
                - 1;                                    // But we have one less comma than values
            }

            if (strtolower(substr($type, 0, 4) == "enum")) {
                $values = str_getcsv($what, ",", "'", "'");
                return (int) max(array_map('strlen', $values));
            }
        }

        protected static function getFieldType($what)
        {
            switch (strtolower($what)) {
                case "char":
                case "varchar":
                case "binary":
                case "varbinary":
                case "enum":
                case "set":
                    return "string";
                case "text":
                case "tinytext":
                case "mediumtext":
                case "longtext":
                case "blob":
                case "tinyblob":
                case "mediumblob":
                case "longblob":
                    return "blob";
                case "integer":
                case "bit":
                case "int":
                case "smallint":
                case "tinyint":
                case "mediumint":
                case "bigint":
                    return "int";
                case "decimal":
                case "numeric":
                case "float":
                case "double":
                    return "real";
                case "date":
                case "time":
                case "timestamp":
                case "year":
                case "datetime":
                case "null":
                case "geometry":
                    return $what;
                default:
                    return "unknown";
            }
        }
    }
}


1		<?php
2		namespace {
3
4		if (!function_exists('\mysql_connect')) {
5		define('MYSQL_CLIENT_COMPRESS', MYSQLI_CLIENT_COMPRESS);
6		define('MYSQL_CLIENT_IGNORE_SPACE', MYSQLI_CLIENT_IGNORE_SPACE);
7		define('MYSQL_CLIENT_INTERACTIVE', MYSQLI_CLIENT_INTERACTIVE);
8		define('MYSQL_CLIENT_SSL', MYSQLI_CLIENT_SSL);
9
10		function mysql_connect(
11		$hostname = null,
12		$username = null,
13		$password = null,
14		$new = false,
15		$flags = 0
16		) {
17	32	if ($new !== false) {
18	1	trigger_error('Argument $new is no longer supported in PHP > 7', E_USER_WARNING);
19		}
20
21	31	$hash = sha1($hostname . $username . $flags);
22	31	if ($hostname{1} != ':' && isset(\Dshafik\MySQL::$connections[$hash])) {
23	10	\Dshafik\MySQL::$last_connection = \Dshafik\MySQL::$connections[$hash]['conn'];
24	10	\Dshafik\MySQL::$connections[$hash]['refcount'] += 1;
25	10	return \Dshafik\MySQL::$connections[$hash]['conn'];
26		}
27
28	22	if ($flags === 0) {
29	20	\Dshafik\MySQL::$last_connection = $conn = mysqli_connect($hostname, $username, $password);
30	19	$conn->hash = $hash;
31	19	\Dshafik\MySQL::$connections[$hash] = ['refcount' => 1, 'conn' => $conn];
32
33	19	return $conn;
34		}
35
36		try {
37	2	\Dshafik\MySQL::$last_connection = $conn = mysqli_init();
38
39	2	mysqli_real_connect(
40		$conn,
41		$hostname,
42		$username,
43		$password,
44	2	'',
45	2	null,
46	2	'',
47		$flags
48		);
49
50		// @codeCoverageIgnoreStart
51		// PHPUnit turns the warning from mysqli_real_connect into an exception, so this never runs
52		if ($conn === false) {
53		return false;
54		}
55		// @codeCoverageIgnoreEnd
56
57	1	$conn->hash = $hash;
58	1	\Dshafik\MySQL::$connections[$hash] = ['refcount' => 1, 'conn' => $conn];
59
60	1	return $conn;
61	1	} catch (\Throwable $e) {
62	1	trigger_error($e->getMessage(), E_USER_WARNING);
63		// @codeCoverageIgnoreStart
64		// PHPUnit turns the warning into an exception, so this never runs
65		return false;
66		// @codeCoverageIgnoreEnd
67		}
68		}
69
70		function mysql_pconnect(
71		$hostname = null,
72		$username = null,
73		$password = null,
74		$flags = 0
75		) {
76	1	$hostname = 'p:' . $hostname;
77	1	return mysql_connect($hostname, $username, $password, false, $flags);
78		}
79
80		function mysql_close(\mysqli $link = null)
81		{
82	33	$isDefault = ($link === null);
83
84	33	$link = \Dshafik\MySQL::getConnection($link, __FUNCTION__);
85	33	if ($link === null) {
86		// @codeCoverageIgnoreStart
87		// PHPUnit Warning -> Exception
88		return false;
89		// @codeCoverageIgnoreEnd
90		}
91
92	33	if (isset(\Dshafik\MySQL::$connections[$link->hash])) {
93	29	\Dshafik\MySQL::$connections[$link->hash]['refcount'] -= 1;
94		}
95
96	33	$return = true;
97	33	if (\Dshafik\MySQL::$connections[$link->hash]['refcount'] == 0) {
98	24	$return = mysqli_close($link);
99	24	unset(\Dshafik\MySQL::$connections[$link->hash]);
100		}
101
102	33	if ($isDefault) {
103	33	Dshafik\MySQL::$last_connection = null;
104		}
105
106	33	return $return;
107		}
108
109		function mysql_select_db($databaseName, \mysqli $link = null)
110		{
111	18	$link = \Dshafik\MySQL::getConnection($link);
112
113	18	return mysqli_query(
114		$link,
115	18	"USE " . mysqli_real_escape_string($link, $databaseName)
116	18	) !== false;
117		}
118
119		function mysql_query($query, \mysqli $link = null)
120		{
121	26	return mysqli_query(\Dshafik\MySQL::getConnection($link), $query);
122		}
123
124		function mysql_unbuffered_query($query, \mysqli $link = null)
125		{
126	4	$link = \Dshafik\MySQL::getConnection($link);
127	4	if (mysqli_real_query($link, $query)) {
128	3	return mysqli_use_result($link);
129		}
130
131	1	return false;
132		}
133
134		function mysql_db_query($databaseName, $query, \mysqli $link = null)
135		{
136	2	if (mysql_select_db($databaseName, $link)) {
137	1	return mysql_query($query, $link);
138		}
139	1	return false;
140		}
141
142		function mysql_list_dbs(\mysqli $link = null)
143		{
144	1	return mysql_query("SHOW DATABASES", $link);
145		}
146
147		function mysql_list_tables($databaseName, \mysqli $link = null)
148		{
149	2	$link = \Dshafik\MySQL::getConnection($link);
150	2	return mysql_query("SHOW TABLES FROM " . mysql_real_escape_string($databaseName, $link), $link);
151		}
152
153		function mysql_list_fields($databaseName, $tableName, \mysqli $link = null)
154		{
155	2	$link = \Dshafik\MySQL::getConnection($link);
156	2	$result = mysql_query(
157		"SHOW FULL COLUMNS FROM " .
158	2	mysqli_real_escape_string($link, $databaseName) . "." .
159	2	mysqli_real_escape_string($link, $tableName),
160		$link
161		);
162	2	if ($result instanceof \mysqli_result) {
163	2	$result->table = $tableName;
164		}
165	2	return $result;
166		}
167
168		function mysql_list_processes(\mysqli $link = null)
169		{
170		return mysql_query("SHOW PROCESSLIST", $link);
171		}
172
173		function mysql_error(\mysqli $link = null)
174		{
175	18	return mysqli_error(\Dshafik\MySQL::getConnection($link));
176		}
177
178		function mysql_errno(\mysqli $link = null)
179		{
180		return mysqli_errno(\Dshafik\MySQL::getConnection($link));
181		}
182
183		function mysql_affected_rows(\mysqli $link = null)
184		{
185	1	return mysqli_affected_rows(\Dshafik\MySQL::getConnection($link));
186		}
187
188		function mysql_insert_id($link = null) /\|/
189		{
190		return mysqli_insert_id(\Dshafik\MySQL::getConnection($link));
191		}
192
193		function mysql_result(\mysqli_result $result, $row, $field = 0)
194		{
195		if (!mysqli_data_seek($result, $row)) {
196		return false;
197		}
198
199		if ($row = mysqli_fetch_array($result) === false) {
200		return false;
201		}
202
203		if (isset($row[$field])) {
204		return $row[$field];
205		}
206
207		return false;
208		}
209
210		function mysql_num_rows(\mysqli_result $result)
211		{
212	6	$previous = error_reporting(0);
213	6	$rows = mysqli_num_rows($result);
214	6	error_reporting($previous);
215
216	6	return $rows;
217		}
218
219		function mysql_num_fields($result)
220		{
221	2	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
222		return false;
223		}
224	1	return mysqli_num_fields($result);
225		}
226
227		function mysql_fetch_row($result) /* : array\|null */
228		{
229	4	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
230		return false;
231		}
232	4	return mysqli_fetch_row($result);
233		}
234
235		function mysql_fetch_array($result) /* : array\|null */
236		{
237	1	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
238		return false;
239		}
240	1	return mysqli_fetch_array($result);
241		}
242
243		function mysql_fetch_assoc($result) /* : array\|null */
244		{
245	5	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
246		return false;
247		}
248	5	return mysqli_fetch_assoc($result);
249		}
250
251		function mysql_fetch_object($result, $class = null, array $params = []) /* : object\|null */
252		{
253	1	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
254		return false;
255		}
256
257	1	if ($class == null) {
258	1	return mysqli_fetch_object($result);
259		}
260
261		return mysqli_fetch_object($result, $class, $params);
262		}
263
264		function mysql_data_seek($result, $offset)
265		{
266		if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
267		return false;
268		}
269		return mysqli_data_seek($result, $offset);
270		}
271
272		function mysql_fetch_lengths($result) /* : array\|*/
273		{
274		if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
275		return false;
276		}
277		return mysqli_fetch_lengths($result);
278		}
279
280		function mysql_fetch_field($result) /* : object\|*/
281		{
282		if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
283		return false;
284		}
285		return mysqli_fetch_field($result);
286		}
287
288		function mysql_field_seek($result, $field)
289		{
290		if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
291		return false;
292		}
293		return mysqli_field_seek($result, $field);
294		}
295
296		function mysql_free_result($result)
297		{
298	1	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
299		return false;
300		}
301	1	return mysqli_free_result($result);
302		}
303
304		function mysql_field_name($result, $field)
305		{
306	2	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
307		return false;
308		}
309	2	return \Dshafik\MySQL::mysqlFieldInfo($result, $field, 'name');
310		}
311
312		function mysql_field_table($result, $field)
313		{
314	1	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
315		return false;
316		}
317	1	return \Dshafik\MySQL::mysqlFieldInfo($result, $field, 'table');
318		}
319
320		function mysql_field_len($result, $field)
321		{
322	1	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
323		return false;
324		}
325	1	return \Dshafik\MySQL::mysqlFieldInfo($result, $field, 'length');
326		}
327
328		function mysql_field_type($result, $field)
329		{
330	1	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
331		return false;
332		}
333	1	return \Dshafik\MySQL::mysqlFieldInfo($result, $field, 'type');
334		}
335
336		function mysql_field_flags($result, $field)
337		{
338	1	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
339		return false;
340		}
341	1	return \Dshafik\MySQL::mysqlFieldInfo($result, $field, 'flags');
342		}
343
344		function mysql_escape_string($unescapedString)
345		{
346		return mysql_real_escape_string($unescapedString, null);
347		}
348
349		function mysql_real_escape_string($unescapedString, \mysqli $link = null)
350		{
351	2	return mysqli_escape_string(\Dshafik\MySQL::getConnection($link), $unescapedString);
352		}
353
354		function mysql_stat(\mysqli $link = null)
355		{
356		return mysqli_stat(\Dshafik\MySQL::getConnection($link));
357		}
358
359		function mysql_thread_id(\mysqli $link = null)
360		{
361		return mysqli_thread_id(\Dshafik\MySQL::getConnection($link));
362		}
363
364		function mysql_client_encoding(\mysqli $link = null)
365		{
366		return mysqli_character_set_name(\Dshafik\MySQL::getConnection($link));
367		}
368
369		function mysql_ping(\mysqli $link = null)
370		{
371		return mysqli_ping($link);
372		}
373
374		function mysql_get_client_info(\mysqli $link = null)
375		{
376		return mysqli_get_client_info(\Dshafik\MySQL::getConnection($link));
377		}
378
379		function mysql_get_host_info(\mysqli $link = null)
380		{
381		return mysqli_get_host_info(\Dshafik\MySQL::getConnection($link));
382		}
383
384		function mysql_get_proto_info(\mysqli $link = null)
385		{
386		return mysqli_get_proto_info(\Dshafik\MySQL::getConnection($link));
387		}
388
389		function mysql_get_server_info(\mysqli $link = null)
390		{
391		return mysqli_get_server_info(\Dshafik\MySQL::getConnection($link));
392		}
393
394		function mysql_info(\mysqli $link = null)
395		{
396		return mysqli_info(\Dshafik\MySQL::getConnection($link));
397		}
398
399		function mysql_set_charset($charset, \mysqli $link = null)
400		{
401		return mysqli_set_charset(\Dshafik\MySQL::getConnection($link), $charset);
402		}
403
404		function mysql_db_name($result)
405		{
406		if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
407		return false;
408		}
409		return mysqli_fetch_row($result)['Database'];
410		}
411
412		function mysql_table_name($result)
413		{
414		if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
415		return false;
416		}
417		return mysqli_fetch_row($result)['Table'];
418		}
419
420		/* Aliases */
421
422		function mysql_fieldname(... $args)
423		{
424		return mysql_field_name(... $args);
		1 ignored issue – show Bug introduced 2015-12-06 07:19 UTC by Report Bug Copy Issue Report The call to `mysql_field_name()` misses a required argument `$field`. This check looks for function calls that miss required arguments. Loading history...
425		}
426
427		function mysql_fieldtable(... $args)
428		{
429		return mysql_field_table(... $args);
		1 ignored issue – show Bug introduced 2015-12-06 07:19 UTC by Report Bug Copy Issue Report The call to `mysql_field_table()` misses a required argument `$field`. This check looks for function calls that miss required arguments. Loading history...
430		}
431
432		function mysql_fieldlen(... $args)
433		{
434		return mysql_field_len(... $args);
		1 ignored issue – show Bug introduced 2015-12-06 07:19 UTC by Report Bug Copy Issue Report The call to `mysql_field_len()` misses a required argument `$field`. This check looks for function calls that miss required arguments. Loading history...
435		}
436
437		function mysql_fieldtype(... $args)
438		{
439		return mysql_field_type(... $args);
		1 ignored issue – show Bug introduced 2015-12-06 07:19 UTC by Report Bug Copy Issue Report The call to `mysql_field_type()` misses a required argument `$field`. This check looks for function calls that miss required arguments. Loading history...
440		}
441
442		function mysql_fieldflags(... $args)
443		{
444		return mysql_field_flags(... $args);
445		}
446
447		function mysql_selectdb(... $args)
448		{
449		return mysql_select_db(... $args);
450		}
451
452		function mysql_freeresult(... $args)
453		{
454		return mysql_free_result(... $args);
455		}
456
457		function mysql_numfields(... $args)
458		{
459		return mysql_num_fields(... $args);
460		}
461
462		function mysql_numrows(... $args)
463		{
464		return mysql_num_rows(... $args);
465		}
466
467		function mysql_listdbs(... $args)
468		{
469		return mysql_list_dbs(... $args);
470		}
471
472		function mysql_listtables(... $args)
473		{
474		return mysql_list_tables(... $args);
475		}
476
477		function mysql_listfields(... $args)
478		{
479		return mysql_list_fields(... $args);
480		}
481
482		function mysql_dbname(... $args)
483		{
484		return mysql_db_name(... $args);
485		}
486
487		function mysql_tablename(... $args)
488		{
489		return mysql_table_name(... $args);
490		}
491		}
492		}
493
494		namespace Dshafik {
495
496		class MySQL
497		{
498		public static $last_connection = null;
499		public static $connections = [];
500
501	33	public static function getConnection($link = null, $func = null)
502		{
503	33	if ($link !== null) {
504	7	return $link;
505		}
506
507	33	if (static::$last_connection === null) {
508	4	$err = "A link to the server could not be established";
509	4	if ($func !== null) {
510	4	$err = $func . "(): no MySQL-Link resource supplied";
511		}
512	4	trigger_error($err, E_USER_WARNING);
513	4	return false;
514		}
515
516	30	return static::$last_connection;
517		}
518
519	2	public static function mysqlFieldInfo(\mysqli_result $result, $field, $what)
520		{
521	2	if (!\mysqli_data_seek($result, $field)) {
522	1	trigger_error(
523		sprintf(
524	1	"mysql_field_name(): Field %d is invalid for MySQL result index %s",
525		$field,
526		spl_object_hash($result)
527		),
528	1	E_USER_WARNING
529		);
530		// @codeCoverageIgnoreStart
531		// PHPUnit turns the warning into an exception, so this never runs
532		return false;
533		// @codeCoverageIgnoreEnd
534		}
535
536	1	$field = \mysql_fetch_assoc($result);
537
538		switch ($what) {
539	1	case "name":
540	1	return $field['Field'];
541		case "table":
542	1	return $result->table;
543		case "length":
544		case "type":
545	1	$matches = [];
546	1	preg_match("/(?<type>[a-z]+)(?:\((?<length>.+)\))?/", $field['Type'], $matches);
547	1	if (!isset($matches[$what])) {
548	1	$matches[$what] = null;
549		}
550	1	if ($what == 'length') {
551	1	return static::getFieldLength($matches[$what], $field['Type']);
552		}
553	1	return static::getFieldType($matches[$what]);
554		case "flags":
555	1	$flags = [];
556	1	if ($field['Null'] == "NO") {
557	1	$flags[] = "not_null";
558		}
559
560	1	if ($field['Key'] == 'PRI') {
561	1	$flags[] = "primary_key";
562		}
563
564	1	if (strpos($field['Extra'], "auto_increment") !== false) {
565	1	$flags[] = "auto_increment";
566		}
567
568	1	if ($field['Key'] == 'UNI') {
569	1	$flags[] = "unique_key";
570		}
571
572	1	if ($field['Key'] == 'MUL') {
573	1	$flags[] = "multiple_key";
574		}
575
576	1	$type = strtolower($field['Type']);
577	1	if (in_array(substr($type, -4), ["text", "blob"])) {
578	1	$flags[] = "blob";
579		}
580
581	1	if (substr($type, 0, 4) == "enum") {
582	1	$flags[] = "enum";
583		}
584
585	1	if (substr($type, 0, 3) == "set") {
586	1	$flags[] = "set";
587		}
588
589	1	return implode(" ", $flags);
590		}
591
592		return false;
593		}
594
595	15	public static function checkValidResult($result, $function)
596		{
597	15	if (!($result instanceof \mysqli_result)) {
598	1	trigger_error(
599	1	$function . "() expects parameter 1 to be resource, " . gettype($result) . " given",
600	1	E_USER_WARNING
601		);
602		return false;
603		}
604	14	}
605
606	1	protected static function getFieldLength($what, $type)
607		{
608	1	if (is_numeric($what)) {
609	1	return (int) $what;
610		}
611
612		switch ($type) {
613	1	case "text":
614		case "blob":
615		return 65535;
616		case "longtext":
617		case "longblob":
618		return 4294967295;
619		case "tinytext":
620		case "tinyblob":
621		return 255;
622		case "mediumtext":
623	1	case "mediumblob":
624	1	return 16777215;
625		}
626
627	1	if (strtolower(substr($type, 0, 3)) == "set") {
628	1	return (int)strlen($what)
629	1	- 2 // Remove open and closing quotes
630	1	- substr_count($what, "'") // Remove quotes
631	1	+ substr_count($what, "'''") // Re-add escaped quotes
632		+ (
633	1	substr_count(
634	1	str_replace("''", "", $what), // Remove escaped quotes
635	1	"'"
636		)
637	1	/ 2 // We have two quotes per value
638		)
639	1	- 1; // But we have one less comma than values
640		}
641
642	1	if (strtolower(substr($type, 0, 4) == "enum")) {
643	1	$values = str_getcsv($what, ",", "'", "'");
644	1	return (int) max(array_map('strlen', $values));
645		}
646		}
647
648	1	protected static function getFieldType($what)
649		{
650	1	switch (strtolower($what)) {
651		case "char":
652		case "varchar":
653		case "binary":
654		case "varbinary":
655		case "enum":
656		case "set":
657	1	return "string";
658		case "text":
659		case "tinytext":
660		case "mediumtext":
661		case "longtext":
662		case "blob":
663		case "tinyblob":
664		case "mediumblob":
665		case "longblob":
666	1	return "blob";
667		case "integer":
668		case "bit":
669		case "int":
670		case "smallint":
671		case "tinyint":
672		case "mediumint":
673		case "bigint":
674	1	return "int";
675		case "decimal":
676		case "numeric":
677		case "float":
678		case "double":
679		return "real";
680		case "date":
681		case "time":
682		case "timestamp":
683		case "year":
684		case "datetime":
685		case "null":
686		case "geometry":
687		return $what;
688		default:
689		return "unknown";
690		}
691		}
692		}
693		}
694

dshafik / php7-mysql-shim

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