我如何在教義querybuilder的where子句中傳遞整數變量

Question

我是新的ORM理論。 我將Codeigniter框架與學說一起使用時出現此錯誤

A PHP Error was encountered
Severity: Warning
Message: get_class() expects parameter 1 to be object, integer given
Filename: Expr/Base.php
Line Number: 92

當我嘗試在模型函數中插入整數變量作為參數時

public function selectsingle($id){
    $qb = $this->em->createQueryBuilder();
    $query = $qb->select('p.name', 'p.email', 'p.subject', 'p.message')
            ->from('PdContact', 'p')
            ->where('p.id', $id);

    $result = $query->getQuery()->getResult();
    echo "<pre>";
    print_r($result);
    exit;
}

我如何將任何整數傳遞給where子句。

Answer 1

添加->setParameter("id", $id)並將where子句更改為->where('p.id = :id')之后，我得到了解決方案

public function selectsingle($id){
    $qb = $this->em->createQueryBuilder();
    $query = $qb->select('p.name', 'p.email', 'p.subject', 'p.message')
            ->from('PdContact', 'p')
            ->where('p.id = :id')
            ->setParameter("id", $id);

    return $result = $query->getQuery()->getResult();
}