Determine which fields have been changed before/after saving the model Author: Chuwen Time: 2021-08-21 Classification: Other classifications <trans data-src="## 代码示例">##Code example</trans> <trans data-src="```php">```php</trans> <trans data-src="$user = User::whereId(1);">$user = User::whereId(1);</trans> <trans data-src="$user->email = 'i@nowtime.cc';">$user->email = 'i@nowtime.cc';</trans> <trans data-src="// 提交更新前，获取修改了哪些字段">//Before submitting the update, obtain which fields have been modified</trans> <trans data-src="$user->getDirty();// ">$user->getDirty();// </trans> <trans data-src="返回 ["email": "i@nowtime.cc"]">Return to ["email": "i @ nowtime. cc"]</trans> <trans data-src="$user->save();">$user->save();</trans> <trans data-src="// 提交更新后，获取修改了哪些字段">//After submitting the update, obtain which fields have been modified</trans> <trans data-src="$user->getChanges();// ">$user->getChanges();// </trans> <trans data-src="返回 ["email": "i@nowtime.cc"]">Return to ["email": "i @ nowtime. cc"]</trans> <trans data-src="```">```</trans> <trans data-src="- `getDirty` 更新前调用">-'getDirty' called before updating</trans> <trans data-src="- `getChanges` 更新后调用">-'getChanges' is called after updating</trans> label: PHP , Laravel , Laravel Model