Php 使用显示PDO异常错误的条令添加新字段时

这是我代码的一部分。当我第一次创建employee字段时 输入…它工作得很好…但我尝试添加第三个字段 它显示此错误。请帮助我查找错误

    ----------

条令错误显示

      [Doctrine\DBAL\DBALException]                                                
      An exception occurred while executing 'ALTER TABLE leave ADD days VARCHAR(1  
      00) NOT NULL':                                                               

      SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error i  
      n your SQL syntax; check the manual that corresponds to your MySQL server v  
      ersion for the right syntax to use near 'leave ADD days VARCHAR(100) NOT NU  
      LL' at line 1                                                                






      [PDOException]                                                               
      SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error i  
      n your SQL syntax; check the manual that corresponds to your MySQL server v  
      ersion for the right syntax to use near 'leave ADD days VARCHAR(100) NOT NU  
      LL' at line 1                                                               

    ----------

这是我的Model.Leave.php

    <?php

    namespace Application\Model;

    use Doctrine\ORM\Mapping as ORM;
    use Doctrine\Common\Collections\ArrayCollection;

    /**
     * @ORM\Table(name="leave")
     * @ORM\Entity
     */
    class Leave extends Entity
    {
        /**
         * @ORM\Column(type="string", length=100)
         * @var string
         */
        protected $employee;


        public function getEmployee()
        {
            return $this->employee;
        }

        public function setEmployee($emp)
        {
            $this->employee = $emp;
        }

        /**
         * @ORM\Column(type="string", length=100)
         * @var string
         */
        protected $type;


        public function getType()
        {
            return $this->type;
        }

        public function setType($type)
        {
            $this->type = $type;
        }

        /**
         * @ORM\Column(type="string", length=100)
         * @var string
         */
        protected $days;


        public function getDays()
        {
            return $this->days;
        }

        public function setDays($days)
        {
            $this->days = $days;
        }

    }

请参见

你需要引用保留的词，例如

/**
 * @ORM\Table(name="`leave`")
 * @ORM\Entity
 */

“离开”是一个概念，而不是引用它作为一个标识符。你确定你用的是1.2条令吗？我认为1.2没有注释支持或namespaces@Phil：谢谢，我换了假，现在很好用。