MySQL::checkValidResult() - Code Metrics - Inspection of "Add more tests and fixes" - dshafik/php7-mysql-shim - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 5e627a...5f2082 )

by Davey

created 2015-12-07 04:38 UTC

MySQL::checkValidResult() A

↳ Parent: MySQL

Complexity

Conditions	2
Paths	2

Size

Total Lines	10
Code Lines	6

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	6
CRAP Score	2.0117

Metric	Value
dl	0
loc	10
ccs	6
cts	7
cp	0.8571
rs	9.4286
cc	2
eloc	6
nc	2
nop	2
crap	2.0117

<?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);
            $result = mysql_query(
                "SHOW COLUMNS FROM " .
                mysqli_real_escape_string($link, $databaseName) . "." .
                mysqli_real_escape_string($link, $tableName),
                $link
            );

            if ($result instanceof \mysqli_result) {
                $result->table = $tableName;
                return $result;
            }

            trigger_error("mysql_list_fields(): Unable to save MySQL query result", E_USER_WARNING);
            return false;
        }

        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)) {
                trigger_error(
                    sprintf(
                        "mysql_result(): Unable to jump to row %d on MySQL result index %s",
                        $row,
                        spl_object_hash($result)
                    ),
                    E_USER_WARNING
                );
                // @codeCoverageIgnoreStart
                return false;
                // @codeCoverageIgnoreEnd
            }

            $found = true;
            if (strpos($field, ".") !== false) {
                list($table, $name) =  explode(".", $field);
                $i = 0;
                $found = false;
                while ($column = mysqli_fetch_field($result)) {
                    if ($column->table == $table && $column->name == $name) {
                        $field = $i;
                        $found = true;
                        break;
                    }
                    $i++;
                }
            }

            $row = mysql_fetch_array($result);
            if ($found && isset($row[$field])) {
                return $row[$field];
            }

            trigger_error(
                sprintf(
                    "%s(): %s not found in MySQL result index %s",
                    __FUNCTION__,
                    $field,
                    spl_object_hash($result)
                ),
                E_USER_WARNING
            );
            // @codeCoverageIgnoreStart
            return false;
            // @codeCoverageIgnoreEnd
        }

        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, 'len');
        }

        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)
        {
            try {
                $field = mysqli_fetch_field_direct($result, $field);
            } catch (\Exception $e) {
                trigger_error(
                    sprintf(
                        "mysql_field_%s(): Field %d is invalid for MySQL result index %s",
                        $what,
                        $field,
                        spl_object_hash($result)
                    ),
                    E_USER_WARNING
                );
                // @codeCoverageIgnoreStart
                // PHPUnit turns the warning into an exception, so this never runs
                return false;
                // @codeCoverageIgnoreEnd
            }

            if ($what == 'name' || $what == 'table') {
                return $field->{$what};
            }

            if ($what == 'len') {
                return $field->length;
            }

            if ($what == 'type') {
                return static::getFieldType($field->type);
            }

            if ($what == 'flags') {
                return static::getFieldFlags($field->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 getFieldFlags($what)
        {
            // Order of flags taken from http://lxr.php.net/xref/PHP_5_6/ext/mysql/php_mysql.c#2507

            $flags = [];
            if ($what & MYSQLI_NOT_NULL_FLAG) {
                $flags[] = "not_null";
            }

            if ($what & MYSQLI_PRI_KEY_FLAG) {
                $flags[] = "primary_key";
            }

            if ($what & MYSQLI_UNIQUE_KEY_FLAG) {
                $flags[] = "unique_key";
            }

            if ($what & MYSQLI_MULTIPLE_KEY_FLAG) {
                $flags[] = "multiple_key";
            }

            if ($what & MYSQLI_BLOB_FLAG) {
                $flags[] = "blob";
            }

            if ($what & MYSQLI_UNSIGNED_FLAG) {
                $flags[] = "unsigned";
            }

            if ($what & MYSQLI_ZEROFILL_FLAG) {
                $flags[] = "zerofill";
            }

            if ($what & MYSQLI_BINARY_FLAG) {
                $flags[] = "binary";
            }

            if ($what & MYSQLI_ENUM_FLAG) {
                $flags[] = "enum";
            }

            if ($what & MYSQLI_SET_FLAG) {
                $flags[] = "set";
            }


            if ($what & MYSQLI_AUTO_INCREMENT_FLAG) {
                $flags[] = "auto_increment";
            }

            if ($what & MYSQLI_TIMESTAMP_FLAG) {
                $flags[] = "timestamp";
            }

            return implode(" ", $flags);
        }

        protected static function getFieldType($what)
        {
            switch ($what) {
                case MYSQLI_TYPE_STRING:
                case MYSQLI_TYPE_VAR_STRING:
                case MYSQLI_TYPE_ENUM:
                case MYSQLI_TYPE_SET:
                    return "string";
                case MYSQLI_TYPE_LONG:
                case MYSQLI_TYPE_TINY:
                case MYSQLI_TYPE_SHORT:
                case MYSQLI_TYPE_INT24:
                case MYSQLI_TYPE_CHAR:
                case MYSQLI_TYPE_LONGLONG:
                    return "int";
                case MYSQLI_TYPE_DECIMAL:
                case MYSQLI_TYPE_FLOAT:
                case MYSQLI_TYPE_DOUBLE:
                case MYSQLI_TYPE_NEWDECIMAL:
                    return "real";
                case MYSQLI_TYPE_DATETIME:
                    return "datetime";
                case MYSQLI_TYPE_TIMESTAMP:
                    return "timestamp";
                case MYSQLI_TYPE_NEWDATE:
                case MYSQLI_TYPE_DATE:
                    return "date";
                case MYSQLI_TYPE_TIME:
                    return "time";
                case MYSQLI_TYPE_YEAR:
                    return "year";
                case MYSQLI_TYPE_TINY_BLOB:
                case MYSQLI_TYPE_MEDIUM_BLOB:
                case MYSQLI_TYPE_LONG_BLOB:
                case MYSQLI_TYPE_BLOB:
                    return "blob";
                case MYSQLI_TYPE_NULL:
                    return "null";
                case MYSQLI_TYPE_GEOMETRY:
                    return "geometry";
                case MYSQLI_TYPE_INTERVAL:
                case MYSQLI_TYPE_BIT:
                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		$flags = 0
16		) {
17	46	if ($new !== false) {
18	1	trigger_error('Argument $new is no longer supported in PHP > 7', E_USER_WARNING);
19		}
20
21	45	$hash = sha1($hostname . $username . $flags);
22	45	if ($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[$hash]['conn'];
26		}
27
28	36	if ($flags === 0) {
29	34	\Dshafik\MySQL::$last_connection = $conn = mysqli_connect($hostname, $username, $password);
30	33	$conn->hash = $hash;
31	33	\Dshafik\MySQL::$connections[$hash] = ['refcount' => 1, 'conn' => $conn];
32
33	33	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	47	$isDefault = ($link === null);
83
84	47	$link = \Dshafik\MySQL::getConnection($link, __FUNCTION__);
85	47	if ($link === null) {
86		// @codeCoverageIgnoreStart
87		// PHPUnit Warning -> Exception
88		return false;
89		// @codeCoverageIgnoreEnd
90		}
91
92	47	if (isset(\Dshafik\MySQL::$connections[$link->hash])) {
93	43	\Dshafik\MySQL::$connections[$link->hash]['refcount'] -= 1;
94		}
95
96	47	$return = true;
97	47	if (\Dshafik\MySQL::$connections[$link->hash]['refcount'] == 0) {
98	38	$return = mysqli_close($link);
99	38	unset(\Dshafik\MySQL::$connections[$link->hash]);
100		}
101
102	47	if ($isDefault) {
103	47	Dshafik\MySQL::$last_connection = null;
104		}
105
106	47	return $return;
107		}
108
109		function mysql_select_db($databaseName, \mysqli $link = null)
110		{
111	37	$link = \Dshafik\MySQL::getConnection($link);
112
113	37	return mysqli_query(
114		$link,
115	37	"USE " . mysqli_real_escape_string($link, $databaseName)
116	37	) !== false;
117		}
118
119		function mysql_query($query, \mysqli $link = null)
120		{
121	40	return mysqli_query(\Dshafik\MySQL::getConnection($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	$result = mysql_query(
157		"SHOW COLUMNS FROM " .
158	2	mysqli_real_escape_string($link, $databaseName) . "." .
159	2	mysqli_real_escape_string($link, $tableName),
160		$link
161		);
162
163	2	if ($result instanceof \mysqli_result) {
164	1	$result->table = $tableName;
165	1	return $result;
166		}
167
168	1	trigger_error("mysql_list_fields(): Unable to save MySQL query result", E_USER_WARNING);
169		return false;
170		}
171
172		function mysql_list_processes(\mysqli $link = null)
173		{
174		return mysql_query("SHOW PROCESSLIST", $link);
175		}
176
177		function mysql_error(\mysqli $link = null)
178		{
179	23	return mysqli_error(\Dshafik\MySQL::getConnection($link));
180		}
181
182		function mysql_errno(\mysqli $link = null)
183		{
184	1	return mysqli_errno(\Dshafik\MySQL::getConnection($link));
185		}
186
187		function mysql_affected_rows(\mysqli $link = null)
188		{
189	1	return mysqli_affected_rows(\Dshafik\MySQL::getConnection($link));
190		}
191
192		function mysql_insert_id($link = null) /\|/
193		{
194	1	return mysqli_insert_id(\Dshafik\MySQL::getConnection($link));
195		}
196
197		function mysql_result(\mysqli_result $result, $row, $field = 0)
198		{
199	5	if (!mysqli_data_seek($result, $row)) {
200	1	trigger_error(
201		sprintf(
202	1	"mysql_result(): Unable to jump to row %d on MySQL result index %s",
203		$row,
204		spl_object_hash($result)
205		),
206	1	E_USER_WARNING
207		);
208		// @codeCoverageIgnoreStart
209		return false;
210		// @codeCoverageIgnoreEnd
211		}
212
213	4	$found = true;
214	4	if (strpos($field, ".") !== false) {
215	2	list($table, $name) = explode(".", $field);
216	2	$i = 0;
217	2	$found = false;
218	2	while ($column = mysqli_fetch_field($result)) {
219	2	if ($column->table == $table && $column->name == $name) {
220	1	$field = $i;
221	1	$found = true;
222	1	break;
223		}
224	1	$i++;
225		}
226		}
227
228	4	$row = mysql_fetch_array($result);
229	4	if ($found && isset($row[$field])) {
230	2	return $row[$field];
231		}
232
233	2	trigger_error(
234		sprintf(
235	2	"%s(): %s not found in MySQL result index %s",
236	2	__FUNCTION__,
237		$field,
238		spl_object_hash($result)
239		),
240	2	E_USER_WARNING
241		);
242		// @codeCoverageIgnoreStart
243		return false;
244		// @codeCoverageIgnoreEnd
245		}
246
247		function mysql_num_rows(\mysqli_result $result)
248		{
249	7	$previous = error_reporting(0);
250	7	$rows = mysqli_num_rows($result);
251	7	error_reporting($previous);
252
253	7	return $rows;
254		}
255
256		function mysql_num_fields($result)
257		{
258	2	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
259		return false;
260		}
261	1	return mysqli_num_fields($result);
262		}
263
264		function mysql_fetch_row($result) /* : array\|null */
265		{
266	4	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
267		return false;
268		}
269	4	return mysqli_fetch_row($result);
270		}
271
272		function mysql_fetch_array($result) /* : array\|null */
273		{
274	5	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
275		return false;
276		}
277	5	return mysqli_fetch_array($result);
278		}
279
280		function mysql_fetch_assoc($result) /* : array\|null */
281		{
282	5	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
283		return false;
284		}
285	5	return mysqli_fetch_assoc($result);
286		}
287
288		function mysql_fetch_object($result, $class = null, array $params = []) /* : object\|null */
289		{
290	1	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
291		return false;
292		}
293
294	1	if ($class == null) {
295	1	return mysqli_fetch_object($result);
296		}
297
298		return mysqli_fetch_object($result, $class, $params);
299		}
300
301		function mysql_data_seek($result, $offset)
302		{
303		if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
304		return false;
305		}
306		return mysqli_data_seek($result, $offset);
307		}
308
309		function mysql_fetch_lengths($result) /* : array\|*/
310		{
311		if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
312		return false;
313		}
314		return mysqli_fetch_lengths($result);
315		}
316
317		function mysql_fetch_field($result) /* : object\|*/
318		{
319		if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
320		return false;
321		}
322		return mysqli_fetch_field($result);
323		}
324
325		function mysql_field_seek($result, $field)
326		{
327		if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
328		return false;
329		}
330		return mysqli_field_seek($result, $field);
331		}
332
333		function mysql_free_result($result)
334		{
335	1	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
336		return false;
337		}
338	1	return mysqli_free_result($result);
339		}
340
341		function mysql_field_name($result, $field)
342		{
343	2	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
344		return false;
345		}
346	2	return \Dshafik\MySQL::mysqlFieldInfo($result, $field, 'name');
347		}
348
349		function mysql_field_table($result, $field)
350		{
351	2	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
352		return false;
353		}
354	2	return \Dshafik\MySQL::mysqlFieldInfo($result, $field, 'table');
355		}
356
357		function mysql_field_len($result, $field)
358		{
359	2	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
360		return false;
361		}
362	2	return \Dshafik\MySQL::mysqlFieldInfo($result, $field, 'len');
363		}
364
365		function mysql_field_type($result, $field)
366		{
367	2	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
368		return false;
369		}
370	2	return \Dshafik\MySQL::mysqlFieldInfo($result, $field, 'type');
371		}
372
373		function mysql_field_flags($result, $field)
374		{
375	2	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
376		return false;
377		}
378	2	return \Dshafik\MySQL::mysqlFieldInfo($result, $field, 'flags');
379		}
380
381		function mysql_escape_string($unescapedString)
382		{
383		return mysql_real_escape_string($unescapedString, null);
384		}
385
386		function mysql_real_escape_string($unescapedString, \mysqli $link = null)
387		{
388	2	return mysqli_escape_string(\Dshafik\MySQL::getConnection($link), $unescapedString);
389		}
390
391		function mysql_stat(\mysqli $link = null)
392		{
393		return mysqli_stat(\Dshafik\MySQL::getConnection($link));
394		}
395
396		function mysql_thread_id(\mysqli $link = null)
397		{
398		return mysqli_thread_id(\Dshafik\MySQL::getConnection($link));
399		}
400
401		function mysql_client_encoding(\mysqli $link = null)
402		{
403		return mysqli_character_set_name(\Dshafik\MySQL::getConnection($link));
404		}
405
406		function mysql_ping(\mysqli $link = null)
407		{
408		return mysqli_ping($link);
409		}
410
411		function mysql_get_client_info(\mysqli $link = null)
412		{
413		return mysqli_get_client_info(\Dshafik\MySQL::getConnection($link));
414		}
415
416		function mysql_get_host_info(\mysqli $link = null)
417		{
418		return mysqli_get_host_info(\Dshafik\MySQL::getConnection($link));
419		}
420
421		function mysql_get_proto_info(\mysqli $link = null)
422		{
423		return mysqli_get_proto_info(\Dshafik\MySQL::getConnection($link));
424		}
425
426		function mysql_get_server_info(\mysqli $link = null)
427		{
428		return mysqli_get_server_info(\Dshafik\MySQL::getConnection($link));
429		}
430
431		function mysql_info(\mysqli $link = null)
432		{
433		return mysqli_info(\Dshafik\MySQL::getConnection($link));
434		}
435
436		function mysql_set_charset($charset, \mysqli $link = null)
437		{
438		return mysqli_set_charset(\Dshafik\MySQL::getConnection($link), $charset);
439		}
440
441		function mysql_db_name($result)
442		{
443		if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
444		return false;
445		}
446		return mysqli_fetch_row($result)['Database'];
447		}
448
449		function mysql_table_name($result)
450		{
451		if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
452		return false;
453		}
454		return mysqli_fetch_row($result)['Table'];
455		}
456
457		/* Aliases */
458
459		function mysql_fieldname(... $args)
460		{
461		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...
462		}
463
464		function mysql_fieldtable(... $args)
465		{
466		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...
467		}
468
469		function mysql_fieldlen(... $args)
470		{
471		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...
472		}
473
474		function mysql_fieldtype(... $args)
475		{
476		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...
477		}
478
479		function mysql_fieldflags(... $args)
480		{
481		return mysql_field_flags(... $args);
482		}
483
484		function mysql_selectdb(... $args)
485		{
486		return mysql_select_db(... $args);
487		}
488
489		function mysql_freeresult(... $args)
490		{
491		return mysql_free_result(... $args);
492		}
493
494		function mysql_numfields(... $args)
495		{
496		return mysql_num_fields(... $args);
497		}
498
499		function mysql_numrows(... $args)
500		{
501		return mysql_num_rows(... $args);
502		}
503
504		function mysql_listdbs(... $args)
505		{
506		return mysql_list_dbs(... $args);
507		}
508
509		function mysql_listtables(... $args)
510		{
511		return mysql_list_tables(... $args);
512		}
513
514		function mysql_listfields(... $args)
515		{
516		return mysql_list_fields(... $args);
517		}
518
519		function mysql_dbname(... $args)
520		{
521		return mysql_db_name(... $args);
522		}
523
524		function mysql_tablename(... $args)
525		{
526		return mysql_table_name(... $args);
527		}
528		}
529		}
530
531		namespace Dshafik {
532
533		class MySQL
534		{
535		public static $last_connection = null;
536		public static $connections = [];
537
538	47	public static function getConnection($link = null, $func = null)
539		{
540	47	if ($link !== null) {
541	7	return $link;
542		}
543
544	47	if (static::$last_connection === null) {
545	4	$err = "A link to the server could not be established";
546	4	if ($func !== null) {
547	4	$err = $func . "(): no MySQL-Link resource supplied";
548		}
549	4	trigger_error($err, E_USER_WARNING);
550	4	return false;
551		}
552
553	44	return static::$last_connection;
554		}
555
556	6	public static function mysqlFieldInfo(\mysqli_result $result, $field, $what)
557		{
558		try {
559	6	$field = mysqli_fetch_field_direct($result, $field);
560	5	} catch (\Exception $e) {
561	5	trigger_error(
562		sprintf(
563	5	"mysql_field_%s(): Field %d is invalid for MySQL result index %s",
564		$what,
565		$field,
566		spl_object_hash($result)
567		),
568	5	E_USER_WARNING
569		);
570		// @codeCoverageIgnoreStart
571		// PHPUnit turns the warning into an exception, so this never runs
572		return false;
573		// @codeCoverageIgnoreEnd
574		}
575
576	1	if ($what == 'name' \|\| $what == 'table') {
577	1	return $field->{$what};
578		}
579
580	1	if ($what == 'len') {
581	1	return $field->length;
582		}
583
584	1	if ($what == 'type') {
585	1	return static::getFieldType($field->type);
586		}
587
588	1	if ($what == 'flags') {
589	1	return static::getFieldFlags($field->flags);
590		}
591
592		return false;
593		}
594
595	24	public static function checkValidResult($result, $function)
596		{
597	24	if (!($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	23	}
605
606	1	protected static function getFieldFlags($what)
607		{
608		// Order of flags taken from http://lxr.php.net/xref/PHP_5_6/ext/mysql/php_mysql.c#2507
609
610	1	$flags = [];
611	1	if ($what & MYSQLI_NOT_NULL_FLAG) {
612	1	$flags[] = "not_null";
613		}
614
615	1	if ($what & MYSQLI_PRI_KEY_FLAG) {
616	1	$flags[] = "primary_key";
617		}
618
619	1	if ($what & MYSQLI_UNIQUE_KEY_FLAG) {
620	1	$flags[] = "unique_key";
621		}
622
623	1	if ($what & MYSQLI_MULTIPLE_KEY_FLAG) {
624	1	$flags[] = "multiple_key";
625		}
626
627	1	if ($what & MYSQLI_BLOB_FLAG) {
628	1	$flags[] = "blob";
629		}
630
631	1	if ($what & MYSQLI_UNSIGNED_FLAG) {
632		$flags[] = "unsigned";
633		}
634
635	1	if ($what & MYSQLI_ZEROFILL_FLAG) {
636		$flags[] = "zerofill";
637		}
638
639	1	if ($what & MYSQLI_BINARY_FLAG) {
640		$flags[] = "binary";
641		}
642
643	1	if ($what & MYSQLI_ENUM_FLAG) {
644	1	$flags[] = "enum";
645		}
646
647	1	if ($what & MYSQLI_SET_FLAG) {
648	1	$flags[] = "set";
649		}
650
651
652	1	if ($what & MYSQLI_AUTO_INCREMENT_FLAG) {
653	1	$flags[] = "auto_increment";
654		}
655
656	1	if ($what & MYSQLI_TIMESTAMP_FLAG) {
657		$flags[] = "timestamp";
658		}
659
660	1	return implode(" ", $flags);
661		}
662
663	1	protected static function getFieldType($what)
664		{
665		switch ($what) {
666	1	case MYSQLI_TYPE_STRING:
667	1	case MYSQLI_TYPE_VAR_STRING:
668	1	case MYSQLI_TYPE_ENUM:
669	1	case MYSQLI_TYPE_SET:
670	1	return "string";
671	1	case MYSQLI_TYPE_LONG:
672	1	case MYSQLI_TYPE_TINY:
673	1	case MYSQLI_TYPE_SHORT:
674	1	case MYSQLI_TYPE_INT24:
675	1	case MYSQLI_TYPE_CHAR:
676	1	case MYSQLI_TYPE_LONGLONG:
677	1	return "int";
678	1	case MYSQLI_TYPE_DECIMAL:
679	1	case MYSQLI_TYPE_FLOAT:
680	1	case MYSQLI_TYPE_DOUBLE:
681	1	case MYSQLI_TYPE_NEWDECIMAL:
682		return "real";
683	1	case MYSQLI_TYPE_DATETIME:
684		return "datetime";
685	1	case MYSQLI_TYPE_TIMESTAMP:
686		return "timestamp";
687	1	case MYSQLI_TYPE_NEWDATE:
688	1	case MYSQLI_TYPE_DATE:
689		return "date";
690	1	case MYSQLI_TYPE_TIME:
691		return "time";
692	1	case MYSQLI_TYPE_YEAR:
693		return "year";
694	1	case MYSQLI_TYPE_TINY_BLOB:
695	1	case MYSQLI_TYPE_MEDIUM_BLOB:
696	1	case MYSQLI_TYPE_LONG_BLOB:
697	1	case MYSQLI_TYPE_BLOB:
698	1	return "blob";
699		case MYSQLI_TYPE_NULL:
700		return "null";
701		case MYSQLI_TYPE_GEOMETRY:
702		return "geometry";
703		case MYSQLI_TYPE_INTERVAL:
704		case MYSQLI_TYPE_BIT:
705		default:
706		return "unknown";
707		}
708		}
709		}
710		}
711

dshafik / php7-mysql-shim

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MySQL::checkValidResult() A

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