查询只插入一行而不是多行

Question

我试图从 excel sheet 中插入多个值，我从 excel sheet 中获取了所有数据到数组变量。但是当我插入它时，它总是只插入第一行，我有一种方法可以使用 PDO 执行插入查询，

我的数据

array (size=4)
  1 => 
    array (size=5)
      'A' => string '*' (length=1)
      'B' => string 'Title' (length=5)
      'C' => string 'Author' (length=6)
      'D' => string 'Publication ' (length=12)
      'E' => string 'Container' (length=9)
  2 => 
    array (size=5)
      'A' => float 1
      'B' => string 'Test' (length=4)
      'C' => string 'one' (length=3)
      'D' => string 'two' (length=3)
      'E' => string 'X1' (length=2)
  3 => 
    array (size=5)
      'A' => float 2
      'B' => string 'Test' (length=4)
      'C' => string 'three' (length=5)
      'D' => string 'four' (length=4)
      'E' => string 'X2' (length=2)
  4 => 
    array (size=5)
      'A' => float 3
      'B' => string 'Test' (length=4)
      'C' => string 'five' (length=4)
      'D' => string 'six' (length=3)
      'E' => string 'X3' (length=2)

这是我的方法

public function importBooks($data, $nr)
{
    // Init query
    $this->db->query('INSERT INTO books_pre (title, author, publication, container, created_by, created_at) VALUES (:title, :author, :publication, :container, :created_by, now())');

    for ($i=2; $i<$nr; $i++) {
        // Bind values
        $this->db->bind(':title', $data[$i]['B']);
        $this->db->bind(':author', $data[$i]['C']);
        $this->db->bind(':publication', $data[$i]['D']);
        $this->db->bind(':container', $data[$i]['E']);
        $this->db->bind(':created_by', $_SESSION['user_id']);

        // Execute query
        if ($this->db->execute()) {
            return true;
        } else {
            return false;
        }
    }
}

Answer 1

return statement 将结束您的方法的执行——并退出循环。引用手册：

If called from within a function, the return statement immediately ends execution of the current function, and returns its argument as the value of the function call.

为了以最小的努力完成这项工作，我只在 $this->db->execute() 失败时 return false 和在你的方法结束时 return true ，就像这样：

public function importBooks($data, $nr)
{
    // Init query
    $this->db->query('INSERT INTO books_pre (title, author, publication, container, created_by, created_at) VALUES (:title, :author, :publication, :container, :created_by, now())');

    for ($i=2; $i<$nr; $i++) {
        // Bind values
        $this->db->bind(':title', $data[$i]['B']);
        $this->db->bind(':author', $data[$i]['C']);
        $this->db->bind(':publication', $data[$i]['D']);
        $this->db->bind(':container', $data[$i]['E']);
        $this->db->bind(':created_by', $_SESSION['user_id']);

        // Execute query
        if (!$this->db->execute()) {
            return false;
        }
    }

    return true;
}

但是，如果我不得不重写这段代码，我个人可能会破坏数据数组并将其全部插入一个查询中。

查询只插入一行而不是多行

query insert only one row instead multiple rows

php

pdo

bulkinsert