尝试使用 PHP / PDO / MySQL 插入时出错

Question

Trying to make an insertion with two parameters and I'm getting this return:

PDOStatement::bindValue() expects parameter 3 to be int, string given in.

No meu banco tenho id(AUTO_INCREMENT), nome(VARCHAR) e Localizaçao (VARCHAR). My function to insert is this one

public function inserir() { //create
        $query = 'insert into tb_usuarios(name,localizacao)values(:name,:location:)';
        $stmt = $this->conexao->prepare($query);
        $stmt->bindValue('$name','$location', $this->location->__get('name','location'));
        $stmt->execute();
    }

I already tried to put the Id in the insertion query and I didn't get any results, this code is from another project that I did the insertion of only one field, but all the other 3 fields in the table were Aut-increment

Answer 1

The PDO function bindValue() accepts one parameter at a time. You can't bind all of them in one call.

The code you were trying to write should look like this:

public function inserir() { //create
        $query = 'insert into tb_usuarios(name,localizacao)values(:name,:location:)';
        $stmt = $this->conexao->prepare($query);
        $stmt->bindValue('name',$this->location->__get('name'));
        $stmt->bindValue('location',$this->location->__get('location'));
        $stmt->execute();
    }

You can also make an array of param name=>value pairs, and pass that array to execute() which does the same thing as using bindValue() for each param.

public function inserir() { //create
        $query = 'insert into tb_usuarios(name,localizacao)values(:name,:location:)';
        $stmt = $this->conexao->prepare($query);
        $params = [
          'name'=>$this->location->__get('name'),
          'location'=>$this->location->__get('location')
        ];
        $stmt->execute($params);
    }

Note another difference: For a placeholder like :name you can use a param key ':name' or 'name' , but '$name' will not work.