PHP エラー　Cannot redeclare class

About 251,000 results

Any time

StackOverflow

https://stackoverflow.com/questions/708140/php-fatal-error-cannot-redeclare-class
PHP Fatal error: Cannot redeclare class
Viewed 445k times
Question
Answer
319answered Apr 2, 2009 at 3:15
You have a class of the same name declared more than once. Maybe via multiple includes. When including other files you need to use something like

include_once "something.php";
to prevent multiple inclusions. It's very easy for this to happen, though not always obvious, since you could have a long chain of files being included by one another.
See More
Content Under CC-BY-SA license
Was this helpful?
Stack Overflow
https://stackoverflow.com/questions/708140
PHP Fatal error: Cannot redeclare class - Stack Overflow
WebApr 2, 2009 · This is because PHP actually parses all the top-level classes in a file before executing any code and throws the fatal error immediately. To remedy this, wrap your …
Tags:
Cannot Redeclare Class
Php Fatal Error Cannot Redeclare
Php Redeclare Function
You have a class of the same name declared more than once. Maybe via multiple includes. When including other files you need to use something like...
Best answer
·
319
It means you've already created a class. For instance: class Foo {} // some code here class Foo {} That second Foo would throw the error.
119
That happens when you declare a class more than once in a page. You can fix it by either wrapping that class with an if statement (like below), or...
58
Use include_once(); - with this, your codes will be included only one time.
20
This will happen if we use any of the in built classes in the php library. I used the class name as Directory and I got the same error. If you get...
15
This error might also occur if you define the __construct method more than once.
12
Sometimes that happens due to some bugs in PHP's FastCGI. Try to restart it. At Ubuntu it's: service php-fastcgi restart
8
I had the same problem while using autoload like follows: <?php function __autoload($class_name) { include $class_name . '.php'; } __autol...
6
Just adding; This error can also occur if you by mistake put a function inside another function.
3
Explore further
php fatal error cannot redeclare class - How to fix?
bobcares.com
How I can fix "Cannot redeclare" error in PHP? - Stack Overflow
stackoverflow.com
How to fix Fatal error: Cannot redeclare connectdb ()
stackoverflow.com
PHP Fatal error: Cannot redeclare class qrstr in ../all/libraries ...
drupal.org
Fix PHP Fatal error: Cannot redeclare "function name" - …
thisinterestsme.com
Recommended to you based on what's popular • Feedback
Stack Overflow
https://stackoverflow.com/questions/50831148
php error cannot redeclare class - Stack Overflow
WebJun 13, 2018 · The util.php requires the MainPage.php and Form.php. Use require_once 'DatabaseHandler.php' instead of require 'DatabaseHandler.php'. This should work!
Is there any way to redeclare a class safely in PHP? Apr 16, 2010
php - PHP5.5: Fatal error: Cannot redeclare class
See more results
Tags:
Cannot Redeclare Class
Php Cannot Redeclare
Question & Answer
Stack Overflow
Question
PHP Fatal error: Cannot redeclare class.
Does anyone know what can cause this problem? PHP Fatal error: Cannot red…
Answer · 318 votes
You have a class of the same name declared m…
Stack Overflow
Question
php error cannot redeclare class.
I have three classes DatabaseHandler, MainPage, and Form D…
Answer · 0 votes
The util.php requires the MainPage.php and For…
Stack Overflow
Question
PHP5.5: Fatal error: Cannot redeclare class.
since I upgraded from PHP 5.2 to 5.5 I get an error I don't understa…
Answer · 3 votes
Class "SessionHandler" already exists in the na…
Stack Overflow
Question
PHP: cannot redeclare class.
So I have 3 classes in this situation. Connection.php Engineer.php Status.ph…
Answer · 11 votes
instead of using include() use require_once() for i…
Stack Overflow
Question
Is there any way to redeclare a class safely in PHP?
We all know the infamous "cannot redeclare class" error. I…
Answer · 14 votes
As Pekka and Techpriester both point…
Sling Academy
https://www.slingacademy.com/article/fixing-php...
Fixing PHP Fatal error: Cannot redeclare class - Sling Academy
WebJan 11, 2024 · The ‘Cannot redeclare class’ error happens when a PHP script includes a class file multiple times, leading to a clash in the declaration. This could be due to an …
Tags:
Cannot Redeclare Class
Php Fatal Error Cannot Redeclare
Acceliv
https://acceliv.com/2021/01/php-fatal-error-cannot-redeclare
【PHP】Fatal error: Cannot redeclare ()の原因の対処法 - Acceliv
WebPHPでプログラムを組んでいくと「Fatal error: Cannot redeclare」というエラーが発生するとあります。このエラーは”redeclare”のあとに必ず定義した関数名が来るのですが …
sourcecodester.com
https://www.sourcecodester.com/article/16547/how...
How to Fix the "Fatal Error: Cannot Redeclare class" PHP Error
WebMay 5, 2023 · is a PHP Error that occurs if you unintentionally redeclare the already loaded class name in your current PHP script. In other words, the class name that you entered …
Tags:
Cannot Redeclare Class
Php Fatal Error Cannot Redeclare
People also ask
What is 'cannot redeclare class' error in PHP?
This tutorial provides a comprehensive guide to understanding and resolving this error in PHP applications. The ‘Cannot redeclare class’ error happens when a PHP script includes a class file multiple times, leading to a clash in the declaration.
Fixing PHP Fatal error: Cannot redeclare class - Sling Academy
slingacademy.com
Why can't I declare class sampleclass in PHP?
As you can see, the provided PHP scripts result in a Fatal Error that says "Cannot declare class sampleclass, because the name is already in use". The error occurred even though the class name was written once in a file because the index.php file load 2 different PHP scripts that loads the sample class file script.
How to Fix the "Fatal Error: Cannot Redeclare class" PHP Error
sourcecodester.com
Can I redeclare a class using a namespace in PHP?
As Pekka and Techpriester both pointed out: no, you cannot. However, if you're using PHP >= 5.3, then you can use namespaces and the "use" construct to effectively "redeclare" the class. Here's an example: Thus, you've got your desired result, as MyClass now refers to your namespaced class.
Is there any way to redeclare a class safely in PHP?
stackoverflow.com
How to avoid class redeclaration conflicts in PHP?
By using include_once() and require_once(), properly setting up autoloading, and adhering to namespacing conventions, you can avoid class redeclaration conflicts. Furthermore, routine maintenance like cache clearing, dependencies updates, and using a proper PHP configuration will keep your application running smoothly.
Fixing PHP Fatal error: Cannot redeclare class - Sling Academy
slingacademy.com
Feedback
MaryCore 言語知能総合研究所
https://marycore.jp/prog/php/fatal-error-cannot-redeclare-function
【PHP】Fatal error: Cannot redeclare f() エラーの原因と対処（複 …
Webエラーの原因は、同じ名前の関数が複数回定義されてしまっていることです。このようなエラーに繋がる要因は複数あり、要因別に適切な対処が必要となります。原因と要因. …
Missing:
- class
Must include:
- class
Tags:
エラーの原因
無名関数
サラプロのPHPメモノート
https://codelive.jp/【phpの基礎】fatal-error...
【PHPの基礎】fatal error（致命的エラー）をマスター …
WebApr 3, 2023 · 1. メモリ不足. PHPプログラムが必要なメモリを超えた場合、致命的エラーが発生します。これは、以下のようなエラーメッセージで通知されます。 Fatal error: Allowed memory size of 134217728 bytes …
ONE NOTES
https://1-notes.com/php-error-cannot-redeclare-previously-declared
PHP | Cannot redeclare (previously declared in ～) エラーの原因と …
WebApr 7, 2022 · 「Cannot redeclare (previously declared in ～)」 というPHPエラーは同一の関数名による関数が既に宣言されている際に発生するエラーです。最初のファイルパ …
PHP Bug Tracking System
https://bugs.php.net/62031
PHP :: Bug #62031 :: namespaces not supported - cannot …
WebApr 4, 2024 · PHP :: Bug #62031 :: namespaces not supported - cannot redeclare class. Have you experienced this issue? yes no don't know. Rate the importance of this bug to …
Tags:
Cannot Redeclare Class
Php Fatal Error Cannot Redeclare
stackoverflow.com
https://ja.stackoverflow.com/questions/56340/fatal...
php - Fatal error: Cannot declare class **** because the name is ...
WebJul 3, 2019 · Fatal error: Cannot declare class **** because the name is already in use in のエラーを解消できない。質問する. 質問日4 年 10 か月前. 更新 4 年 10 か月前. 1,857 …
Pagination
- 1
- 2
- 3
- 4
- 5
- Next

Is there any way to redeclare a class safely in PHP?	Apr 16, 2010
php - PHP5.5: Fatal error: Cannot redeclare class

Explore further