mysql.php ➔ mysql_result() - Code Metrics - Inspection of "Support database names with hyphens" - dshafik/php7-mysql-shim - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#13)

unknown

created 2016-06-10 05:52 UTC

mysql.php ➔ mysql_result() B

↳ Parent: Project

Complexity

Conditions	9
Paths	8

Size

Total Lines	56
Code Lines	34

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	24
CRAP Score	9

Importance

Changes

Metric	Value
cc	9
eloc	34
nc	8
nop	3
dl	0
loc	56
ccs	24
cts	24
cp	1
crap	9
rs	7.1584
c	0
b	0
f	0

How to fix Long Method

<?php
namespace {

    if (!function_exists('\mysql_connect')) {
        define ('MYSQL_ASSOC', 1);
        define ('MYSQL_NUM', 2);
        define ('MYSQL_BOTH', 3);
        define ('MYSQL_CLIENT_COMPRESS', 32);
        define ('MYSQL_CLIENT_SSL', 2048);
        define ('MYSQL_CLIENT_INTERACTIVE', 1024);
        define ('MYSQL_CLIENT_IGNORE_SPACE', 256);

        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);
            }
            if (null === $hostname) {
                $hostname = ini_get('mysqli.default_host') ?: null;
            }
            if (null === $username) {
                $username = ini_get('mysqli.default_user') ?: null;
            }
            if (null === $password) {
                $password = ini_get('mysqli.default_pw') ?: null;
            }

            $hash = sha1($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);
            $query = sprintf(
                "SHOW TABLES FROM `%s`",
                mysql_real_escape_string($databaseName, $link)
            );
            return mysql_query($query, $link);
        }

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

            $query = sprintf(
                "SHOW COLUMNS FROM `%s`.`%s`",
                mysqli_real_escape_string($link, $databaseName),
                mysqli_real_escape_string($link, $tableName)
            );

            $result = mysql_query($query, $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);
            // @codeCoverageIgnoreStart
            return false;
            // @codeCoverageIgnoreEnd
        }

        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($result, $row, $field = 0)
        {
            if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
                // @codeCoverageIgnoreStart
                return false;
                // @codeCoverageIgnoreEnd
            }

            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;
                $found = false;
		        mysqli_field_seek($result, 0);
                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($result)
        {
            if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
                // @codeCoverageIgnoreStart
                return false;
                // @codeCoverageIgnoreEnd
            }

            $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__)) {
                // @codeCoverageIgnoreStart
                return false;
                // @codeCoverageIgnoreEnd
            }
            return mysqli_num_fields($result);
        }

        function mysql_fetch_row($result)
        {
            if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
                // @codeCoverageIgnoreStart
                return false;
                // @codeCoverageIgnoreEnd
            }
            return mysqli_fetch_row($result) ?: false;
        }

        function mysql_fetch_array($result)
        {
            if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
                // @codeCoverageIgnoreStart
                return false;
                // @codeCoverageIgnoreEnd
            }
            return mysqli_fetch_array($result) ?: false;
        }

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

            return mysqli_fetch_assoc($result) ?: false;
        }

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

            if ($class == null) {
                $object = mysqli_fetch_object($result);
            } else {
                $object = mysqli_fetch_object($result, $class, $params);
            }

            return $object ?: false;
        }

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

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

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

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

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

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

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

        function mysql_field_len($result, $field)
        {
            if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
                // @codeCoverageIgnoreStart
                return false;
                // @codeCoverageIgnoreEnd
            }
            return \Dshafik\MySQL::mysqlFieldInfo($result, $field, 'len');
        }

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

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

        function mysql_escape_string($unescapedString)
        {
            if (\Dshafik\MySQL::$last_connection == null) {
                trigger_error(
                    sprintf(
                        "%s() is insecure; use mysql_real_escape_string() instead!",
                        __FUNCTION__
                    ),
                    E_USER_NOTICE
                );

                return \Dshafik\MySQL::escapeString($unescapedString);
            }
            return mysql_real_escape_string($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, $row)
        {
            if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
                // @codeCoverageIgnoreStart
                return false;
                // @codeCoverageIgnoreEnd
            }

            // Alias as per http://lxr.php.net/xref/PHP_5_6/ext/mysql/php_mysql.c#319
            return mysql_result($result, $row, 'Database');
        }

        function mysql_tablename($result, $row)
        {
            if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
                // @codeCoverageIgnoreStart
                return false;
                // @codeCoverageIgnoreEnd
            }

            // Alias as per http://lxr.php.net/xref/PHP_5_6/ext/mysql/php_mysql.c#321
            return mysql_result($result, $row, '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_table_name(... $args)
        {
            return mysql_tablename(... $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)) {
                if ($function != "mysql_fetch_object") {
                    trigger_error(
                        $function . "() expects parameter 1 to be resource, " . strtolower(gettype($result)) . " given",
                        E_USER_WARNING
                    );
                }

                if ($function == "mysql_fetch_object") {
                    trigger_error(
                        $function . "(): supplied argument is not a valid MySQL result resource",
                        E_USER_WARNING
                    );
                }
                return false;
            }

        }

        public static function escapeString($unescapedString)
        {
            $escapedString = "";
            for ($i = 0; $i < strlen($unescapedString); $i++) {
                $escapedString .= self::escapeChar($unescapedString{$i});
            }

            return $escapedString;
        }

        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 = [
                MYSQLI_NOT_NULL_FLAG => "not_null",
                MYSQLI_PRI_KEY_FLAG => "primary_key",
                MYSQLI_UNIQUE_KEY_FLAG => "unique_key",
                MYSQLI_MULTIPLE_KEY_FLAG => "multiple_key",
                MYSQLI_BLOB_FLAG => "blob",
                MYSQLI_UNSIGNED_FLAG => "unsigned",
                MYSQLI_ZEROFILL_FLAG => "zerofill",
                MYSQLI_BINARY_FLAG => "binary",
                MYSQLI_ENUM_FLAG => "enum",
                MYSQLI_SET_FLAG => "set",
                MYSQLI_AUTO_INCREMENT_FLAG => "auto_increment",
                MYSQLI_TIMESTAMP_FLAG => "timestamp",
            ];

            $fieldFlags = [];
            foreach ($flags as $flag => $value) {
                if ($what & $flag) {
                    $fieldFlags[] = $value;
                }
            }

            return implode(" ", $fieldFlags);
        }

        protected static function getFieldType($what)
        {
            $types = [
                MYSQLI_TYPE_STRING => 'string',
                MYSQLI_TYPE_VAR_STRING => 'string',
                MYSQLI_TYPE_ENUM => 'string',
                MYSQLI_TYPE_SET => 'string',

                MYSQLI_TYPE_LONG => 'int',
                MYSQLI_TYPE_TINY => 'int',
                MYSQLI_TYPE_SHORT => 'int',
                MYSQLI_TYPE_INT24 => 'int',
                MYSQLI_TYPE_CHAR => 'int',
                MYSQLI_TYPE_LONGLONG => 'int',

                MYSQLI_TYPE_DECIMAL => 'real',
                MYSQLI_TYPE_FLOAT => 'real',
                MYSQLI_TYPE_DOUBLE => 'real',
                MYSQLI_TYPE_NEWDECIMAL => 'real',

                MYSQLI_TYPE_TINY_BLOB => 'blob',
                MYSQLI_TYPE_MEDIUM_BLOB => 'blob',
                MYSQLI_TYPE_LONG_BLOB => 'blob',
                MYSQLI_TYPE_BLOB => 'blob',

                MYSQLI_TYPE_NEWDATE => 'date',
                MYSQLI_TYPE_DATE => 'date',
                MYSQLI_TYPE_TIME => 'time',
                MYSQLI_TYPE_YEAR => 'year',
                MYSQLI_TYPE_DATETIME => 'datetime',
                MYSQLI_TYPE_TIMESTAMP => 'timestamp',

                MYSQLI_TYPE_NULL => 'null',

                MYSQLI_TYPE_GEOMETRY => 'geometry',
            ];

            return isset($types[$what]) ? $types[$what] : "unknown";
        }

        protected static function escapeChar($char)
        {
            switch ($char) {
                case "\0":
                    $esc = "\\0";
                    break;
                case "\n":
                    $esc = "\\n";
                    break;
                case "\r":
                    $esc = "\\r";
                    break;
                case '\\':
                case '\'':
                case '"':
                    $esc = "\\{$char}";
                    break;
                case "\032":
                    $esc = "\\Z";
                    break;
                default:
                    $esc = $char;
                    break;
            }
            
            return $esc;
        }
    }
}


1		<?php
2		namespace {
3
4		if (!function_exists('\mysql_connect')) {
5		define ('MYSQL_ASSOC', 1);
6		define ('MYSQL_NUM', 2);
7		define ('MYSQL_BOTH', 3);
8		define ('MYSQL_CLIENT_COMPRESS', 32);
9		define ('MYSQL_CLIENT_SSL', 2048);
10		define ('MYSQL_CLIENT_INTERACTIVE', 1024);
11		define ('MYSQL_CLIENT_IGNORE_SPACE', 256);
12
13		function mysql_connect(
14		$hostname = null,
15		$username = null,
16		$password = null,
17		$new = false,
18		$flags = 0
19		) {
20	52	if ($new !== false) {
21	1	trigger_error('Argument $new is no longer supported in PHP > 7', E_USER_WARNING);
22		}
23	51	if (null === $hostname) {
24	1	$hostname = ini_get('mysqli.default_host') ?: null;
25		}
26	51	if (null === $username) {
27	1	$username = ini_get('mysqli.default_user') ?: null;
28		}
29	51	if (null === $password) {
30	49	$password = ini_get('mysqli.default_pw') ?: null;
31		}
32
33	51	$hash = sha1($hostname . $username . $flags);
34	51	if ($hostname{1} != ':' && isset(\Dshafik\MySQL::$connections[$hash])) {
35	10	\Dshafik\MySQL::$last_connection = \Dshafik\MySQL::$connections[$hash]['conn'];
36	10	\Dshafik\MySQL::$connections[$hash]['refcount'] += 1;
37	10	return \Dshafik\MySQL::$connections[$hash]['conn'];
38		}
39
40	42	if ($flags === 0) {
41	40	\Dshafik\MySQL::$last_connection = $conn = mysqli_connect($hostname, $username, $password);
42	39	$conn->hash = $hash;
43	39	\Dshafik\MySQL::$connections[$hash] = ['refcount' => 1, 'conn' => $conn];
44
45	39	return $conn;
46		}
47
48		try {
49	2	\Dshafik\MySQL::$last_connection = $conn = mysqli_init();
50
51	2	mysqli_real_connect(
52		$conn,
53		$hostname,
54		$username,
55		$password,
56	2	'',
57	2	null,
58	2	'',
59		$flags
60		);
61
62		// @codeCoverageIgnoreStart
63		// PHPUnit turns the warning from mysqli_real_connect into an exception, so this never runs
64		if ($conn === false) {
65		return false;
66		}
67		// @codeCoverageIgnoreEnd
68
69	1	$conn->hash = $hash;
70	1	\Dshafik\MySQL::$connections[$hash] = ['refcount' => 1, 'conn' => $conn];
71
72	1	return $conn;
73	1	} catch (\Throwable $e) {
74	1	trigger_error($e->getMessage(), E_USER_WARNING);
75		// @codeCoverageIgnoreStart
76		// PHPUnit turns the warning into an exception, so this never runs
77		return false;
78		// @codeCoverageIgnoreEnd
79		}
80		}
81
82		function mysql_pconnect(
83		$hostname = null,
84		$username = null,
85		$password = null,
86		$flags = 0
87		) {
88	1	$hostname = 'p:' . $hostname;
89	1	return mysql_connect($hostname, $username, $password, false, $flags);
90		}
91
92		function mysql_close(\mysqli $link = null)
93		{
94	75	$isDefault = ($link === null);
95
96	75	$link = \Dshafik\MySQL::getConnection($link, __FUNCTION__);
97	75	if ($link === null) {
98		// @codeCoverageIgnoreStart
99		// PHPUnit Warning -> Exception
100		return false;
101		// @codeCoverageIgnoreEnd
102		}
103
104	75	if (isset(\Dshafik\MySQL::$connections[$link->hash])) {
105	49	\Dshafik\MySQL::$connections[$link->hash]['refcount'] -= 1;
106		}
107
108	75	$return = true;
109	75	if (\Dshafik\MySQL::$connections[$link->hash]['refcount'] == 0) {
110	66	$return = mysqli_close($link);
111	66	unset(\Dshafik\MySQL::$connections[$link->hash]);
112		}
113
114	75	if ($isDefault) {
115	75	Dshafik\MySQL::$last_connection = null;
116		}
117
118	75	return $return;
119		}
120
121		function mysql_select_db($databaseName, \mysqli $link = null)
122		{
123	42	$link = \Dshafik\MySQL::getConnection($link);
124
125	42	return mysqli_query(
126		$link,
127	42	"USE `" . mysqli_real_escape_string($link, $databaseName) . "`"
128	42	) !== false;
129		}
130
131		function mysql_query($query, \mysqli $link = null)
132		{
133	45	return mysqli_query(\Dshafik\MySQL::getConnection($link), $query);
134		}
135
136		function mysql_unbuffered_query($query, \mysqli $link = null)
137		{
138	4	$link = \Dshafik\MySQL::getConnection($link);
139	4	if (mysqli_real_query($link, $query)) {
140	3	return mysqli_use_result($link);
141		}
142
143	1	return false;
144		}
145
146		function mysql_db_query($databaseName, $query, \mysqli $link = null)
147		{
148	2	if (mysql_select_db($databaseName, $link)) {
149	1	return mysql_query($query, $link);
150		}
151	1	return false;
152		}
153
154		function mysql_list_dbs(\mysqli $link = null)
155		{
156	1	return mysql_query("SHOW DATABASES", $link);
157		}
158
159		function mysql_list_tables($databaseName, \mysqli $link = null)
160		{
161	2	$link = \Dshafik\MySQL::getConnection($link);
162	2	$query = sprintf(
163	2	"SHOW TABLES FROM `%s`",
164		mysql_real_escape_string($databaseName, $link)
165		);
166	2	return mysql_query($query, $link);
167		}
168
169		function mysql_list_fields($databaseName, $tableName, \mysqli $link = null)
170		{
171	2	$link = \Dshafik\MySQL::getConnection($link);
172
173	2	$query = sprintf(
174	2	"SHOW COLUMNS FROM `%s`.`%s`",
175		mysqli_real_escape_string($link, $databaseName),
176		mysqli_real_escape_string($link, $tableName)
177		);
178
179	2	$result = mysql_query($query, $link);
180
181	2	if ($result instanceof \mysqli_result) {
182	1	$result->table = $tableName;
183	1	return $result;
184		}
185
186	1	trigger_error("mysql_list_fields(): Unable to save MySQL query result", E_USER_WARNING);
187		// @codeCoverageIgnoreStart
188		return false;
189		// @codeCoverageIgnoreEnd
190		}
191
192		function mysql_list_processes(\mysqli $link = null)
193		{
194		return mysql_query("SHOW PROCESSLIST", $link);
195		}
196
197		function mysql_error(\mysqli $link = null)
198		{
199	28	return mysqli_error(\Dshafik\MySQL::getConnection($link));
200		}
201
202		function mysql_errno(\mysqli $link = null)
203		{
204	1	return mysqli_errno(\Dshafik\MySQL::getConnection($link));
205		}
206
207		function mysql_affected_rows(\mysqli $link = null)
208		{
209	1	return mysqli_affected_rows(\Dshafik\MySQL::getConnection($link));
210		}
211
212		function mysql_insert_id($link = null) /\|/
213		{
214	1	return mysqli_insert_id(\Dshafik\MySQL::getConnection($link));
215		}
216
217		function mysql_result($result, $row, $field = 0)
218		{
219	7	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
220		// @codeCoverageIgnoreStart
221		return false;
222		// @codeCoverageIgnoreEnd
223		}
224
225	6	if (!mysqli_data_seek($result, $row)) {
226	1	trigger_error(
227		sprintf(
228	1	"mysql_result(): Unable to jump to row %d on MySQL result index %s",
229		$row,
230		spl_object_hash($result)
231		),
232	1	E_USER_WARNING
233		);
234		// @codeCoverageIgnoreStart
235		return false;
236		// @codeCoverageIgnoreEnd
237		}
238
239	5	$found = true;
240	5	if (strpos($field, ".") !== false) {
241	3	list($table, $name) = explode(".", $field);
242	3	$i = 0;
243	3	$found = false;
244	3	mysqli_field_seek($result, 0);
245	3	while ($column = mysqli_fetch_field($result)) {
246	3	if ($column->table == $table && $column->name == $name) {
247	2	$field = $i;
248	2	$found = true;
249	2	break;
250		}
251	3	$i++;
252		}
253		}
254
255	5	$row = mysql_fetch_array($result);
256	5	if ($found && isset($row[$field])) {
257	3	return $row[$field];
258		}
259
260	2	trigger_error(
261		sprintf(
262	2	"%s(): %s not found in MySQL result index %s",
263	2	__FUNCTION__,
264		$field,
265		spl_object_hash($result)
266		),
267	2	E_USER_WARNING
268		);
269		// @codeCoverageIgnoreStart
270		return false;
271		// @codeCoverageIgnoreEnd
272		}
273
274		function mysql_num_rows($result)
275		{
276	12	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
277		// @codeCoverageIgnoreStart
278		return false;
279		// @codeCoverageIgnoreEnd
280		}
281
282	11	$previous = error_reporting(0);
283	11	$rows = mysqli_num_rows($result);
284	11	error_reporting($previous);
285
286	11	return $rows;
287		}
288
289		function mysql_num_fields($result)
290		{
291	3	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
292		// @codeCoverageIgnoreStart
293		return false;
294		// @codeCoverageIgnoreEnd
295		}
296	1	return mysqli_num_fields($result);
297		}
298
299		function mysql_fetch_row($result)
300		{
301	6	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
302		// @codeCoverageIgnoreStart
303		return false;
304		// @codeCoverageIgnoreEnd
305		}
306	5	return mysqli_fetch_row($result) ?: false;
307		}
308
309		function mysql_fetch_array($result)
310		{
311	8	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
312		// @codeCoverageIgnoreStart
313		return false;
314		// @codeCoverageIgnoreEnd
315		}
316	7	return mysqli_fetch_array($result) ?: false;
317		}
318
319		function mysql_fetch_assoc($result) /* : array\|null */
320		{
321	7	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
322		// @codeCoverageIgnoreStart
323		return false;
324		// @codeCoverageIgnoreEnd
325		}
326
327	6	return mysqli_fetch_assoc($result) ?: false;
328		}
329
330		function mysql_fetch_object($result, $class = null, array $params = []) /* : object\|null */
331		{
332	3	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
333		// @codeCoverageIgnoreStart
334		return false;
335		// @codeCoverageIgnoreEnd
336		}
337
338	2	if ($class == null) {
339	2	$object = mysqli_fetch_object($result);
340		} else {
341		$object = mysqli_fetch_object($result, $class, $params);
342		}
343
344	2	return $object ?: false;
345		}
346
347		function mysql_data_seek($result, $offset)
348		{
349	1	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
350		// @codeCoverageIgnoreStart
351		return false;
352		// @codeCoverageIgnoreEnd
353		}
354		return mysqli_data_seek($result, $offset);
355		}
356
357		function mysql_fetch_lengths($result) /* : array\|*/
358		{
359	1	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
360		// @codeCoverageIgnoreStart
361		return false;
362		// @codeCoverageIgnoreEnd
363		}
364		return mysqli_fetch_lengths($result);
365		}
366
367		function mysql_fetch_field($result) /* : object\|*/
368		{
369	1	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
370		// @codeCoverageIgnoreStart
371		return false;
372		// @codeCoverageIgnoreEnd
373		}
374		return mysqli_fetch_field($result);
375		}
376
377		function mysql_field_seek($result, $field)
378		{
379	1	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
380		// @codeCoverageIgnoreStart
381		return false;
382		// @codeCoverageIgnoreEnd
383		}
384		return mysqli_field_seek($result, $field);
385		}
386
387		function mysql_free_result($result)
388		{
389	2	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
390		// @codeCoverageIgnoreStart
391		return false;
392		// @codeCoverageIgnoreEnd
393		}
394	1	return mysqli_free_result($result);
395		}
396
397		function mysql_field_name($result, $field)
398		{
399	3	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
400		// @codeCoverageIgnoreStart
401		return false;
402		// @codeCoverageIgnoreEnd
403		}
404	2	return \Dshafik\MySQL::mysqlFieldInfo($result, $field, 'name');
405		}
406
407		function mysql_field_table($result, $field)
408		{
409	3	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
410		// @codeCoverageIgnoreStart
411		return false;
412		// @codeCoverageIgnoreEnd
413		}
414	2	return \Dshafik\MySQL::mysqlFieldInfo($result, $field, 'table');
415		}
416
417		function mysql_field_len($result, $field)
418		{
419	3	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
420		// @codeCoverageIgnoreStart
421		return false;
422		// @codeCoverageIgnoreEnd
423		}
424	2	return \Dshafik\MySQL::mysqlFieldInfo($result, $field, 'len');
425		}
426
427		function mysql_field_type($result, $field)
428		{
429	3	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
430		// @codeCoverageIgnoreStart
431		return false;
432		// @codeCoverageIgnoreEnd
433		}
434	2	return \Dshafik\MySQL::mysqlFieldInfo($result, $field, 'type');
435		}
436
437		function mysql_field_flags($result, $field)
438		{
439	3	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
440		// @codeCoverageIgnoreStart
441		return false;
442		// @codeCoverageIgnoreEnd
443		}
444	2	return \Dshafik\MySQL::mysqlFieldInfo($result, $field, 'flags');
445		}
446
447		function mysql_escape_string($unescapedString)
448		{
449	2	if (\Dshafik\MySQL::$last_connection == null) {
450	2	trigger_error(
451		sprintf(
452	2	"%s() is insecure; use mysql_real_escape_string() instead!",
453	2	__FUNCTION__
454		),
455	2	E_USER_NOTICE
456		);
457
458	1	return \Dshafik\MySQL::escapeString($unescapedString);
459		}
460		return mysql_real_escape_string($unescapedString, null);
461		}
462
463		function mysql_real_escape_string($unescapedString, \mysqli $link = null)
464		{
465	2	return mysqli_escape_string(\Dshafik\MySQL::getConnection($link), $unescapedString);
466		}
467
468		function mysql_stat(\mysqli $link = null)
469		{
470		return mysqli_stat(\Dshafik\MySQL::getConnection($link));
471		}
472
473		function mysql_thread_id(\mysqli $link = null)
474		{
475		return mysqli_thread_id(\Dshafik\MySQL::getConnection($link));
476		}
477
478		function mysql_client_encoding(\mysqli $link = null)
479		{
480		return mysqli_character_set_name(\Dshafik\MySQL::getConnection($link));
481		}
482
483		function mysql_ping(\mysqli $link = null)
484		{
485		return mysqli_ping($link);
486		}
487
488		function mysql_get_client_info(\mysqli $link = null)
489		{
490		return mysqli_get_client_info(\Dshafik\MySQL::getConnection($link));
491		}
492
493		function mysql_get_host_info(\mysqli $link = null)
494		{
495		return mysqli_get_host_info(\Dshafik\MySQL::getConnection($link));
496		}
497
498		function mysql_get_proto_info(\mysqli $link = null)
499		{
500		return mysqli_get_proto_info(\Dshafik\MySQL::getConnection($link));
501		}
502
503		function mysql_get_server_info(\mysqli $link = null)
504		{
505		return mysqli_get_server_info(\Dshafik\MySQL::getConnection($link));
506		}
507
508		function mysql_info(\mysqli $link = null)
509		{
510		return mysqli_info(\Dshafik\MySQL::getConnection($link));
511		}
512
513		function mysql_set_charset($charset, \mysqli $link = null)
514		{
515		return mysqli_set_charset(\Dshafik\MySQL::getConnection($link), $charset);
516		}
517
518		function mysql_db_name($result, $row)
519		{
520	1	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
521		// @codeCoverageIgnoreStart
522		return false;
523		// @codeCoverageIgnoreEnd
524		}
525
526		// Alias as per http://lxr.php.net/xref/PHP_5_6/ext/mysql/php_mysql.c#319
527		return mysql_result($result, $row, 'Database');
528		}
529
530		function mysql_tablename($result, $row)
531		{
532	1	if (\Dshafik\MySQL::checkValidResult($result, __FUNCTION__)) {
533		// @codeCoverageIgnoreStart
534		return false;
535		// @codeCoverageIgnoreEnd
536		}
537
538		// Alias as per http://lxr.php.net/xref/PHP_5_6/ext/mysql/php_mysql.c#321
539		return mysql_result($result, $row, 'Table');
540		}
541
542		/* Aliases */
543
544		function mysql_fieldname(... $args)
545		{
546		return mysql_field_name(... $args);
547		}
548
549		function mysql_fieldtable(... $args)
550		{
551		return mysql_field_table(... $args);
552		}
553
554		function mysql_fieldlen(... $args)
555		{
556		return mysql_field_len(... $args);
557		}
558
559		function mysql_fieldtype(... $args)
560		{
561		return mysql_field_type(... $args);
562		}
563
564		function mysql_fieldflags(... $args)
565		{
566		return mysql_field_flags(... $args);
567		}
568
569		function mysql_selectdb(... $args)
570		{
571		return mysql_select_db(... $args);
572		}
573
574		function mysql_freeresult(... $args)
575		{
576		return mysql_free_result(... $args);
577		}
578
579		function mysql_numfields(... $args)
580		{
581		return mysql_num_fields(... $args);
582		}
583
584		function mysql_numrows(... $args)
585		{
586		return mysql_num_rows(... $args);
587		}
588
589		function mysql_listdbs(... $args)
590		{
591		return mysql_list_dbs(... $args);
592		}
593
594		function mysql_listtables(... $args)
595		{
596		return mysql_list_tables(... $args);
597		}
598
599		function mysql_listfields(... $args)
600		{
601		return mysql_list_fields(... $args);
602		}
603
604		function mysql_dbname(... $args)
605		{
606		return mysql_db_name(... $args);
607		}
608
609		function mysql_table_name(... $args)
610		{
611		return mysql_tablename(... $args);
612		}
613		}
614		}
615
616		namespace Dshafik {
617
618		class MySQL
619		{
620		public static $last_connection = null;
621		public static $connections = [];
622
623	75	public static function getConnection($link = null, $func = null)
624		{
625	75	if ($link !== null) {
626	7	return $link;
627		}
628
629	75	if (static::$last_connection === null) {
630	26	$err = "A link to the server could not be established";
631	26	if ($func !== null) {
632	26	$err = $func . "(): no MySQL-Link resource supplied";
633		}
634	26	trigger_error($err, E_USER_WARNING);
635	26	return false;
636		}
637
638	50	return static::$last_connection;
639		}
640
641	6	public static function mysqlFieldInfo(\mysqli_result $result, $field, $what)
642		{
643		try {
644	6	$field = mysqli_fetch_field_direct($result, $field);
645	5	} catch (\Exception $e) {
646	5	trigger_error(
647		sprintf(
648	5	"mysql_field_%s(): Field %d is invalid for MySQL result index %s",
649		$what,
650		$field,
651		spl_object_hash($result)
652		),
653	5	E_USER_WARNING
654		);
655		// @codeCoverageIgnoreStart
656		// PHPUnit turns the warning into an exception, so this never runs
657		return false;
658		// @codeCoverageIgnoreEnd
659		}
660
661	1	if ($what == 'name' \|\| $what == 'table') {
662	1	return $field->{$what};
663		}
664
665	1	if ($what == 'len') {
666	1	return $field->length;
667		}
668
669	1	if ($what == 'type') {
670	1	return static::getFieldType($field->type);
671		}
672
673	1	if ($what == 'flags') {
674	1	return static::getFieldFlags($field->flags);
675		}
676
677		return false;
678		}
679
680	50	public static function checkValidResult($result, $function)
681		{
682	50	if (!($result instanceof \mysqli_result)) {
683	20	if ($function != "mysql_fetch_object") {
684	19	trigger_error(
685	19	$function . "() expects parameter 1 to be resource, " . strtolower(gettype($result)) . " given",
686	19	E_USER_WARNING
687		);
688		}
689
690	1	if ($function == "mysql_fetch_object") {
691	1	trigger_error(
692	1	$function . "(): supplied argument is not a valid MySQL result resource",
693	1	E_USER_WARNING
694		);
695		}
696		return false;
697		}
698
699	30	}
700
701	1	public static function escapeString($unescapedString)
702		{
703	1	$escapedString = "";
704	1	for ($i = 0; $i < strlen($unescapedString); $i++) {
705	1	$escapedString .= self::escapeChar($unescapedString{$i});
706		}
707
708	1	return $escapedString;
709		}
710
711	1	protected static function getFieldFlags($what)
712		{
713		// Order of flags taken from http://lxr.php.net/xref/PHP_5_6/ext/mysql/php_mysql.c#2507
714		$flags = [
715	1	MYSQLI_NOT_NULL_FLAG => "not_null",
716	1	MYSQLI_PRI_KEY_FLAG => "primary_key",
717	1	MYSQLI_UNIQUE_KEY_FLAG => "unique_key",
718	1	MYSQLI_MULTIPLE_KEY_FLAG => "multiple_key",
719	1	MYSQLI_BLOB_FLAG => "blob",
720	1	MYSQLI_UNSIGNED_FLAG => "unsigned",
721	1	MYSQLI_ZEROFILL_FLAG => "zerofill",
722	1	MYSQLI_BINARY_FLAG => "binary",
723	1	MYSQLI_ENUM_FLAG => "enum",
724	1	MYSQLI_SET_FLAG => "set",
725	1	MYSQLI_AUTO_INCREMENT_FLAG => "auto_increment",
726	1	MYSQLI_TIMESTAMP_FLAG => "timestamp",
727		];
728
729	1	$fieldFlags = [];
730	1	foreach ($flags as $flag => $value) {
731	1	if ($what & $flag) {
732	1	$fieldFlags[] = $value;
733		}
734		}
735
736	1	return implode(" ", $fieldFlags);
737		}
738
739	1	protected static function getFieldType($what)
740		{
741		$types = [
742	1	MYSQLI_TYPE_STRING => 'string',
743	1	MYSQLI_TYPE_VAR_STRING => 'string',
744	1	MYSQLI_TYPE_ENUM => 'string',
745	1	MYSQLI_TYPE_SET => 'string',
746
747	1	MYSQLI_TYPE_LONG => 'int',
748	1	MYSQLI_TYPE_TINY => 'int',
749	1	MYSQLI_TYPE_SHORT => 'int',
750	1	MYSQLI_TYPE_INT24 => 'int',
751	1	MYSQLI_TYPE_CHAR => 'int',
752	1	MYSQLI_TYPE_LONGLONG => 'int',
753
754	1	MYSQLI_TYPE_DECIMAL => 'real',
755	1	MYSQLI_TYPE_FLOAT => 'real',
756	1	MYSQLI_TYPE_DOUBLE => 'real',
757	1	MYSQLI_TYPE_NEWDECIMAL => 'real',
758
759	1	MYSQLI_TYPE_TINY_BLOB => 'blob',
760	1	MYSQLI_TYPE_MEDIUM_BLOB => 'blob',
761	1	MYSQLI_TYPE_LONG_BLOB => 'blob',
762	1	MYSQLI_TYPE_BLOB => 'blob',
763
764	1	MYSQLI_TYPE_NEWDATE => 'date',
765	1	MYSQLI_TYPE_DATE => 'date',
766	1	MYSQLI_TYPE_TIME => 'time',
767	1	MYSQLI_TYPE_YEAR => 'year',
768	1	MYSQLI_TYPE_DATETIME => 'datetime',
769	1	MYSQLI_TYPE_TIMESTAMP => 'timestamp',
770
771	1	MYSQLI_TYPE_NULL => 'null',
772
773	1	MYSQLI_TYPE_GEOMETRY => 'geometry',
774		];
775
776	1	return isset($types[$what]) ? $types[$what] : "unknown";
777		}
778
779	1	protected static function escapeChar($char)
780		{
781		switch ($char) {
782	1	case "\0":
783	1	$esc = "\\0";
784	1	break;
785	1	case "\n":
786	1	$esc = "\\n";
787	1	break;
788	1	case "\r":
789	1	$esc = "\\r";
790	1	break;
791	1	case '\\':
792	1	case '\'':
793	1	case '"':
794	1	$esc = "\\{$char}";
795	1	break;
796	1	case "\032":
797	1	$esc = "\\Z";
798	1	break;
799		default:
800	1	$esc = $char;
801	1	break;
802		}
803
804	1	return $esc;
805		}
806		}
807		}
808

dshafik / php7-mysql-shim

Pull Request — master (#13)

mysql.php ➔ mysql_result() B

Complexity

Size

Duplication

Code Coverage

Importance

How to fix Long Method

Long Method

Duplication Side-by-Side

Filter issues like