mysqlClass + blogEngine

[reb333l]

mysqlClass.php

<?php
    class mysqlClass {
        // parameters to set
        private $hostname; // generally 'localhost'
        private $username;
        private $password;
        private $databaseName;
        public $linkIdentifier;
        public $activated = false; // connection checker
        
        // function to set parameters
        public function __construct() {
            $this->hostname = 'localhost';
            $this->username = 'root';
            $this->password = 'root';
            $this->databaseName = 'root';
        }
        
        // function to connect to mysql
        public function connect() {
            if(!$this->activated) {
                print('Connected to mysql
');
                $this->linkIdentifier = mysql_connect($this->hostname, $this->username, $this->password);
                mysql_select_db($this->databaseName, $this->linkIdentifier) or die(mysql_error($this->linkIdentifier));
                return $this->activated = true;
            } else {
                print('Not connected to mysql');
                return false;
            }
        }
        
        // function to close mysql connection
        public function close() {
            if($this->activated) {
                echo('Connection closed');
                mysql_close($this->linkIdentifier) or die(mysql_error($this->linkIdentifier));
                return $this->activated = false;
            } else {
                echo('Connection doesn\'t close');
                return false;
            }
        }
        
        // function to execute a query
        public function execute($sql) {
            if($this->activated) {
                echo('Query executed
');
                return mysql_query($sql, $this->linkIdentifier) or die(mysql_error($this->linkIdentifier));
                return $this->activated = false;
            } else {
                echo('Query doesn\'t execute');
                return false;
            }
        }
        
        // function to extract a query
        public function extract($query) {
            if($this->activated) {
                echo('Query extracted
');
                return mysql_fetch_object($query) or die(mysql_error($this->linkIdentifier));
                return $this->activated = false;
            } else {
                echo('Query doesn\'t extracted');
                return false;
            }
        }
        
        // function to insert records in a table
        public function insert($t, $f, $v) {
            if($this->activated) {
                echo('Records inserted
');
                $sql = <<<ENDSQL
                    INSERT INTO $t ($f) VALUES ($v)        
ENDSQL;
                return mysql_query($sql, $this->linkIdentifier) or die(mysql_error($this->linkIdentifier));
                return $this->activated = false;
            } else {
                echo('Records don\'t insert');
                return false;
            }
        }
        
        // function to delete records from table
        public function insert($f, $t, $w) {
            if($this->activated) {
                echo('Records deleted
');
                $sql = <<<ENDSQL
                    DELETE $f FROM $t WHERE $w        
ENDSQL;
                return mysql_query($sql, $this->linkIdentifier) or die(mysql_error($this->linkIdentifier));
                return $this->activated = false;
            } else {
                echo('Records don\'t deleted');
                return false;
            }
        }
        
        // function to update records from a table
        public function insert($t, $s, $w) {
            if($this->activated) {
                echo('Records updated
');
                $sql = <<<ENDSQL
                    UPDATE $t SET $s WHERE $w    
ENDSQL;
                return mysql_query($sql, $this->linkIdentifier) or die(mysql_error($this->linkIdentifier));
                return $this->activated = false;
            } else {
                echo('Records don\'t update');
                return false;
            }
        }
    }
?>

blogEngine.php

<?php
    require_once('mysqlClass.php');
    class blogEngine extends mysqlClass {
        // function to set parameters
        public function __construct() {
            parent::__construct();
        }
    }
?>

Non capisco perché non funziona, mi potete aiutare?