BİLGİLENDİRME ezsql_mysql requires mysql lib to be compiled and or linked in to the php engine

<?php

    /**********************************************************************
    * ezSQL Hagen
    *
    * ezSQL_mysql() functionu artık ezSQL_mysqli(); oldu
    *
    /**********************************************************************
    *  ezSQL error strings - mySQLi
    */
    
    global $ezsql_mysqli_str;

    $ezsql_mysqli_str = array
    (
        1 => 'Require $dbuser and $dbpassword to connect to a database server',
        2 => 'Error establishing mySQLi database connection. Correct user/password? Correct hostname? Database server running?',
        3 => 'Require $dbname to select a database',
        4 => 'mySQLi database connection is not active',
        5 => 'Unexpected error while trying to select database'
    );

    /**********************************************************************
    *  ezSQL Database specific class - mySQLi
    */

    if ( ! function_exists ('mysqli_connect') ) die('<b>Fatal Error:</b> ezSQL_mysql requires mySQLi Lib to be compiled and or linked in to the PHP engine');
    if ( ! class_exists ('ezSQLcore') ) die('<b>Fatal Error:</b> ezSQL_mysql requires ezSQLcore (ez_sql_core.php) to be included/loaded before it can be used');

    class ezSQL_mysqli extends ezSQLcore
    {

        var $dbuser = false;
        var $dbpassword = false;
        var $dbname = false;
        var $dbhost = false;
        var $dbport = false;
        var $encoding = false;
        var $rows_affected = false;

        /**********************************************************************
        *  Constructor - allow the user to perform a qucik connect at the
        *  same time as initialising the ezSQL_mysqli class
        */

        function ezSQL_mysqli($dbuser='', $dbpassword='', $dbname='', $dbhost='localhost', $encoding='')
        {
            $this->dbuser = $dbuser;
            $this->dbpassword = $dbpassword;
            $this->dbname = $dbname;
            list( $this->dbhost, $this->dbport ) = $this->get_host_port( $dbhost, 3306 );
            $this->encoding = $encoding;
        }

        /**********************************************************************
        *  Short hand way to connect to mySQL database server
        *  and select a mySQL database at the same time
        */

        function quick_connect($dbuser='', $dbpassword='', $dbname='', $dbhost='localhost', $dbport='3306', $encoding='')
        {
            $return_val = false;
            if ( ! $this->connect($dbuser, $dbpassword, $dbhost, $dbport) ) ;
            else if ( ! $this->select($dbname,$encoding) ) ;
            else $return_val = true;
            return $return_val;
        }

        /**********************************************************************
        *  Try to connect to mySQL database server
        */

        function connect($dbuser='', $dbpassword='', $dbhost='localhost', $dbport=false)
        {
            global $ezsql_mysqli_str; $return_val = false;
            
            // Keep track of how long the DB takes to connect
            $this->timer_start('db_connect_time');
            
            // If port not specified (new connection issued), get it
            if( ! $dbport ) {
                list( $dbhost, $dbport ) = $this->get_host_port( $dbhost, 3306 );
            }
            
            // Must have a user and a password
            if ( ! $dbuser )
            {
                $this->register_error($ezsql_mysqli_str[1].' in '.__FILE__.' on line '.__LINE__);
                $this->show_errors ? trigger_error($ezsql_mysqli_str[1],E_USER_WARNING) : null;
            }
            // Try to establish the server database handle
            else
            {
                $this->dbh = new mysqli($dbhost,$dbuser,$dbpassword, '', $dbport);
                // Check for connection problem
                if( $this->dbh->connect_errno )
                {
                    $this->register_error($ezsql_mysqli_str[2].' in '.__FILE__.' on line '.__LINE__);
                    $this->show_errors ? trigger_error($ezsql_mysqli_str[2],E_USER_WARNING) : null;
                }
                else
                {
                    $this->dbuser = $dbuser;
                    $this->dbpassword = $dbpassword;
                    $this->dbhost = $dbhost;
                    $this->dbport = $dbport;
                    $return_val = true;
                }
            }

            return $return_val;
        }

        /**********************************************************************
        *  Try to select a mySQL database
        */

        function select($dbname='', $encoding='')
        {
            global $ezsql_mysqli_str; $return_val = false;

            // Must have a database name
            if ( ! $dbname )
            {
                $this->register_error($ezsql_mysqli_str[3].' in '.__FILE__.' on line '.__LINE__);
                $this->show_errors ? trigger_error($ezsql_mysqli_str[3],E_USER_WARNING) : null;
            }

            // Must have an active database connection
            else if ( ! $this->dbh )
            {
                $this->register_error($ezsql_mysqli_str[4].' in '.__FILE__.' on line '.__LINE__);
                $this->show_errors ? trigger_error($ezsql_mysqli_str[4],E_USER_WARNING) : null;
            }

            // Try to connect to the database
            else if ( !@$this->dbh->select_db($dbname) )
            {
                // Try to get error supplied by mysql if not use our own
                if ( !$str = @$this->dbh->error)
                      $str = $ezsql_mysqli_str[5];

                $this->register_error($str.' in '.__FILE__.' on line '.__LINE__);
                $this->show_errors ? trigger_error($str,E_USER_WARNING) : null;
            }
            else
            {
                $this->dbname = $dbname;
                if($encoding!='')
                {
                    $encoding = strtolower(str_replace("-","",$encoding));
                    $charsets = array();
                    $result = $this->dbh->query("SHOW CHARACTER SET");
                    while($row = $result->fetch_array(MYSQLI_ASSOC))
                    {
                        $charsets[] = $row["Charset"];
                    }
                    if(in_array($encoding,$charsets)){
                        $this->dbh->query("SET NAMES '".$encoding."'");                       
                    }
                }
                
                $return_val = true;
            }

            return $return_val;
        }

        /**********************************************************************
        *  Format a mySQL string correctly for safe mySQL insert
        *  (no mater if magic quotes are on or not)
        */

        function escape($str)
        {
            // If there is no existing database connection then try to connect
            if ( ! isset($this->dbh) || ! $this->dbh )
            {
                $this->connect($this->dbuser, $this->dbpassword, $this->dbhost, $this->dbport);
                $this->select($this->dbname, $this->encoding);
            }

            return $this->dbh->escape_string(stripslashes($str));
        }

        /**********************************************************************
        *  Return mySQL specific system date syntax
        *  i.e. Oracle: SYSDATE Mysql: NOW()
        */

        function sysdate()
        {
            return 'NOW()';
        }

        /**********************************************************************
        *  Perform mySQL query and try to determine result value
        */

        function query($query)
        {

            // This keeps the connection alive for very long running scripts
            if ( $this->num_queries >= 500 )
            {
                $this->disconnect();
                $this->quick_connect($this->dbuser,$this->dbpassword,$this->dbname,$this->dbhost,$this->dbport,$this->encoding);
            }

            // Initialise return
            $return_val = 0;

            // Flush cached values..
            $this->flush();

            // For reg expressions
            $query = trim($query);

            // Log how the function was called
            $this->func_call = "\$db->query(\"$query\")";

            // Keep track of the last query for debug..
            $this->last_query = $query;

            // Count how many queries there have been
            $this->num_queries++;
            
            // Start timer
            $this->timer_start($this->num_queries);

            // Use core file cache function
            if ( $cache = $this->get_cache($query) )
            {
                // Keep tack of how long all queries have taken
                $this->timer_update_global($this->num_queries);

                // Trace all queries
                if ( $this->use_trace_log )
                {
                    $this->trace_log[] = $this->debug(false);
                }
                
                return $cache;
            }

            // If there is no existing database connection then try to connect
            if ( ! isset($this->dbh) || ! $this->dbh )
            {
                $this->connect($this->dbuser, $this->dbpassword, $this->dbhost, $this->dbport);
                $this->select($this->dbname,$this->encoding);
                // No existing connection at this point means the server is unreachable
                if ( ! isset($this->dbh) || ! $this->dbh || $this->dbh->connect_errno )
                    return false;
            }

            // Perform the query via std mysql_query function..
            $this->result = @$this->dbh->query($query);

            // If there is an error then take note of it..
            if ( $str = @$this->dbh->error )
            {
                $this->register_error($str);
                $this->show_errors ? trigger_error($str,E_USER_WARNING) : null;
                return false;
            }

            // Query was an insert, delete, update, replace
            if ( preg_match("/^(insert|delete|update|replace|truncate|drop|create|alter|begin|commit|rollback|set|lock|unlock)/i",$query) )
            {
                $is_insert = true;
                $this->rows_affected = @$this->dbh->affected_rows;

                // Take note of the insert_id
                if ( preg_match("/^(insert|replace)\s+/i",$query) )
                {
                    $this->insert_id = @$this->dbh->insert_id;
                }

                // Return number fo rows affected
                $return_val = $this->rows_affected;
            }
            // Query was a select
            else
            {
                $is_insert = false;

                // Take note of column info
                $i=0;
                while ($i < @$this->result->field_count)
                {
                    $this->col_info[$i] = @$this->result->fetch_field();
                    $i++;
                }

                // Store Query Results
                $num_rows=0;
                while ( $row = @$this->result->fetch_object() )
                {
                    // Store relults as an objects within main array
                    $this->last_result[$num_rows] = $row;
                    $num_rows++;
                }

                @$this->result->free_result();

                // Log number of rows the query returned
                $this->num_rows = $num_rows;

                // Return number of rows selected
                $return_val = $this->num_rows;
            }

            // disk caching of queries
            $this->store_cache($query,$is_insert);

            // If debug ALL queries
            $this->trace || $this->debug_all ? $this->debug() : null ;

            // Keep tack of how long all queries have taken
            $this->timer_update_global($this->num_queries);

            // Trace all queries
            if ( $this->use_trace_log )
            {
                $this->trace_log[] = $this->debug(false);
            }

            return $return_val;

        }
        
        /**********************************************************************
        *  Close the active mySQLi connection
        */

        function disconnect()
        {
            @$this->dbh->close();
        }

    }