php Trying to access array offset on value of type int
时间: 2023-11-04 11:21:11 浏览: 236
引用和引用[3]提供了关于PHP报错"Trying to access array offset on value of type null"的信息。该错误信息表示尝试在类型为null的值上访问数组偏移量。这个错误在PHP 7.4中被引入,目的是为了提高语法规范性和严谨性。
解决这个问题的方法是在访问数组之前先判断该数组是否为空,然后再尝试访问数组的偏移量。可以使用empty()函数来判断数组是否为空,然后再进行偏移量的访问。
例如,在你的代码中,原本的代码是这样的:
```
$result = $userDao->getOne();if($result['status'] == 1) {
// do something
} else {
// do something else
}
```
你可以修改为以下代码:
```
$result = $userDao->getOne();
if(!empty($result) && isset($result['status']) && $result['status'] == 1) {
// do something
} else {
// do something else
}
```
这样修改后,就可以避免在类型为null的值上访问数组偏移量的错误发生了。你需要确保在访问数组的偏移量之前先进行空值和索引是否存在的判断。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
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- *2* [php7.4报错:Trying to access array offset on value of type null](https://blog.csdn.net/qq_36025814/article/details/122271747)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"]
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