Question

此代码...

 foreach ($classes->fieldMappings as $fieldMapping) {
        echo $fieldMapping['fieldName'];
 }

...给我以下输出：

id
username
password
email
isActive

我现在想做的是，我想放这段代码...

$entity->setUsername($data['form[username]']);
$entity->setEmail($data['form[email]']);
$entity->setPassword($data['form[password]']);
$entity->setIsActive($data['form[isActive]']);

...进入循环。所以我这样替换它：

foreach ($classes->fieldMappings as $fieldMapping) { 
   $entity->set'.$fieldMapping['fieldName'].'($data['form['.$fieldMapping['fieldName'].']']);
}

我遇到了解析错误，但实际上我不知道如何以正确的方式编写此错误。

Answer 1

您可以在一行中完成此操作，请参见PHP: Strings上的复杂（卷曲）语法：

$entity->{'set'.$fieldMapping['fieldName']}($data['form['.$fieldMapping['fieldName'].']']);

不过，它可能更具可读性：

$func = 'set'.$fieldMapping['fieldName'];
$args = $data['form['.$fieldMapping['fieldName'].']'];
$entity->$func($args);

Answer 2

尝试将您的方法名称包装在花括号中，使其类似：

 $entity->{'set'.$fieldMapping['fieldName']}(...)

如何在foreach循环中使用对象并替换变量（OOP）？

2 个答案: