php - 调用数组的成员函数 fetch_array()

Question

    if($this->cuvant_cautat)
    {
        $this->cuvant_cautat = $this->bd->query("SELECT cuvant_raspuns FROM dc_asociatii WHERE cuvant_stimul='".$this->cuvant_cautat."' ORDER BY id DESC LIMIT 0, 5");
        //echo $this->cuvant_cautat[0];
        while($this->cuvant_cautat = $this->cuvant_cautat->fetch_array(MYSQLI_NUM))
            {
                echo $this->cuvant_cautat[0];
            }
    }

Fatal error: Call to a member function fetch_array() on array in C:\xampp\htdocs\motor\classes\user.Class.php on line 89

第89行如下:

while($this->cuvant_cautat = $this->cuvant_cautat->fetch_array(MYSQLI_NUM))

Answer 1

你每次都在覆盖 $this->cuvant_cautat。在迭代中使用不同的变量。

while ($something_else = $this->cuvant_cautat->fetch_array(MYSQLI_NUM))) {
    echo $something_else[0];
}