Question

I’m trying to implement the Active Record Pattern with PHP; I have the following code

<?php

// define 'MySQL' class
class users{
  private $result;

  public function __construct($host='localhost',$user='user',$password='password',$database='pruebalabo'){
    // connect to MySQL and select database
    if(!($conId = @mysql_connect("127.0.0.1","root",""))){
       throw new Exception('Error connecting to the server');
    }
    if(!mysql_select_db("pruebalabo",$conId)){
       throw new Exception('Error selecting database');
    }
  }

  // run SQL query
  public function query($query){
    if(!$this->result=mysql_query($query)){
      throw new Exception('Error performing query '.$query);
    }
  }
  // fetch one row
  public function fetchRow(){
    while($row=mysql_fetch_array($this->result)){
      return $row;
    }
    return false;
  }
  // fetch all rows
  public function fetchAll($table='users'){
     $this->query('SELECT * FROM '.$table);
     $rows=array();
     while($row=$this->fetchRow()){
        $rows[]=$row;
     }
     return $rows;
  }
  // insert row
  public function insert($params=array(),$table='default_table'){
     $sql='INSERT INTO '.$table.' ('.implode(',', array_keys($params)).') VALUES ('.implode("','",array_values($params)).')';
     $this->query($sql);
  }

}


try{
  // connect to MySQL and select a database
  $db=new users("host","root","","pruebalabo");
  $result=$db->fetchAll('users');
  foreach($result as $row){
     echo $row['firstname'].' '.$row['lastname'].' '.$row['email'].'<br />';
  }

  // connect to MySQL and select a database
  $db=new users("127.0.0.1","root","","pruebalabo");
  // insert new row into selected MySQL table
  $db->insert(array('firstname'=>'Sebas','lastname'=>'Guajardo','email'=>'[e-mail]'),'users');

}

catch(Exception $e){
  echo $e->getMessage();
  exit();
}

?>

When I try to run the code, though, I get an error with the following line

$db->insert(array('firstname'=>'Sebas','lastname'=>'Guajardo','email'=>'[e-mail]'),'users');

I don’t see an error in the syntax, and I took the example pretty much straight from this page. The name of my database (implemented on MySQL) is ‘pruebalabo’, and the name of the table is ‘users’.

EDIT: Fixed mistake pointed out. Still getting an error.

Answer 1

Change your insert function as below

public function insert($params=array(),$table='default_table'){
     $sql='INSERT INTO '.$table.' ('.implode(',', array_keys($params)).') VALUES ('.'\''.implode("','",array_values($params)).'\''.')';
     $this->query($sql);
  }