Trusted WordPress tutorials, when you need them most.
Beginner’s Guide to WordPress
WPBカップ
25 Million+
Websites using our plugins
16+
Years of WordPress experience
3000+
WordPress tutorials
by experts

WordPressの死の白い画面を修正する方法(ステップバイステップ)

死の白い画面は、サイトオーナーにとって最悪の悪夢です。このイライラさせるWordPressエラーは、真っ白なページを見つめたまま、何が問題だったのか手がかりを与えてくれません。

さらに悪いことに、この一般的なWordPressエラーは、管理エリアや個々の投稿など、サイトの特定の部分に影響を及ぼすことがあります。

例えば、WordPressの管理エリア内で死の白い画面が表示され、他は正常に動作していた。また、特定の投稿を表示したときにだけ表示されたこともあります。

このエラーの根本原因を理解することが、解決策を見つける第一歩です。このガイドでは、死の白い画面を修正するためのいくつかの解決策を取り上げ、サイトの機能を回復するための実行可能な手順を提供します。

How to Fix the WordPress White Screen of Death (Step by Step)

注意:サイトに変更を加える前に、WordPressサイトのバックアップがあることを確認してください。管理エリアにアクセスできない場合は、WordPressデータベースのバックアップを手動で作成する方法のガイドをご覧ください。

WordPressで死の白い画面が表示されるのはなぜ?

WordPressのサイトにアクセスしようとしたときに死の白い画面が表示されるのは、ほとんどの場合、ウェブサイト上のスクリプトがメモリ制限を使い果たしたことを意味します。

応答しないスクリプトは、WordPressホスティングサービスサーバーによって強制終了されるか、単にタイムアウトします。実際のエラーメッセージが生成されず、真っ白な画面が表示されるのはこのためです。

WordPress showing white screen instead of website

ただし、エラーメッセージが表示されることもあります。

例えば、真っ白なページではなく、重大なエラーメッセージが表示されるかもしれない。

Critical error in WordPress

真っ白な画面が表示されても、『サイトに重大なエラーが発生しました』というメッセージが表示されても、同じエラーです。

このエラーは、サイトにインストールされているテーマやプラグインのコーディングが不十分なために起こることもあります。また、Webホスティングサービスのサーバーに問題がある場合にも発生することがあります。

白い画面エラーの原因はさまざまであるため、トラブルシューティングが必須となります。以下は、あなたが試すべき手順です:

動画チュートリアル

Subscribe to WPBeginner

もし、文章での説明がお望みなら、このまま読み進めてほしい。

1.他のサイトでも問題が起きていないか確認する

同じホスティングサービスアカウントに他のWordPressサイトがインストールされている場合は、他のサイトでも問題が発生していないか確認することから始めましょう。

もしそうなら、WordPressホスティングサービスに何か問題があることを示す強力な指標です。これはサービスに影響する一時的な問題である可能性があります

一方、問題が1つのサイト、あるいはそのサイトの特定の部分だけに起きている場合は、問題はその特定のサイトにあることがわかる。

2.WordPressリカバリーモードで白い画面のエラーを修正する

もし死の白い画面がWordPressのプラグインやテーマに起因するエラーであれば、WordPressがそれをキャッチできるかもしれません。

WordPress 5.2で導入された新しい致命的エラー保護機能は、エラーをキャッチすることができるため、白い画面が表示されないこともあります。その代わりに、サイトが技術的な問題を抱えているというメッセージが表示されます。

This Site Is Experiencing Technical Difficulties Error Message

WordPressはまた、管理者のメールアドレスに問題についてのメールを送信します。

メールの件名は「Your Site is Experiencing a Technical Issue」です。

Technical Difficulties Email With Link to Recovery Mode

このメールメッセージには、エラーの原因となっているプラグインまたはテーマが記載され、特別なリンクも含まれます。

このリンクからWordPressのリカバリーモードにログインし、障害のあるプラグインを無効化することができます。

WordPress recovery mode dashboard

しかし、メールやリカバリーモードの設定がなく、真っ白な画面が表示されている場合は、手動でエラーを修正する必要があります。

3.メモリ制限を増やす

通常、このエラーはスクリプトがWebサーバーのメモリを使い果たし、途中で終了したために起こります。

これを解決するには、WordPressが使用できるPHPメモリを増やす必要がある。そうすることで、スクリプトがより多くのメモリを使って、本来の仕事を終わらせることができるようになります。

WordPressサイトのwp-config.phpファイルを編集するか、WPCodeのようなコードスニペットプラグインを使用する必要があります。

WordPressのPHPメモリを増やす方法については、チュートリアルの指示に従ってください。

4.すべてのプラグインを無効化して白い画面のエラーを修正する

PHPのメモリ制限を増やしても解決しない場合、あるいは256Mや512Mといった高いメモリ制限がある場合は、トラブルシューティングを開始する必要があります。

私たちのトラブルシューティングの経験では、この問題はいつも、特定のプラグインかテーマのどちらかに原因があることがわかっています。プラグインをすべて無効化してみましょう。

WordPressの管理ダッシュボードにアクセスできる場合は、プラグイン ” インストール済みプラグインのページにアクセスします。インストールされているプラグインをすべて選択し、「一括操作」のドロップダウンから「無効化」を選択します。

Deactivate all WordPress plugins

ただし、WordPressの管理エリアにアクセスできない場合は、FTP経由ですべてのプラグインを無効化する必要があります。

まず、FTPクライアントまたはホスティングサービスのファイルマネージャーを使ってWordPressサイトに接続します。接続したら、wp-contentフォルダに移動し、プラグインフォルダを確認します。

次に、プラグイン・フォルダーを右クリックし、「名前の変更」を選択します。プラグインフォルダーの名前を「plugins-deactivated」に変更することができます。

Using FTP to Rename the Plugins Folder

WordPressは、すべてのプラグインを読み込むためにpluginsという名前のフォルダーを探します。フォルダーが見つからない場合は、すべてのプラグインを無効化します。

これで問題が解決した場合は、プラグインを1つずつ有効化して問題の原因を突き止めます。問題の原因となっているプラグインを見つけたら、代替プラグインに置き換えるか、プラグイン作者に問題を報告することができます。

5.デフォルトテーマを有効化する。

プラグインのトラブルシューティングで問題が解決しない場合は、有効化したテーマを初期設定テーマに置き換えてみてください。

まず、FTPクライアントを使用してサイトに接続し、/wp-content/themes/フォルダに移動します。このフォルダには、サイトにインストールされているすべてのテーマが含まれています。

右クリックして現在のWordPressテーマを選択し、バックアップとしてコンピューターにダウンロードします。

Using FTP to Download the Current Theme as a Backup

次に、現在のテーマをサイトから削除する必要があります。

テーマフォルダーを右クリックし、「削除」を選択します。FTPクライアントがあなたのサイトからテーマを削除します。

Using FTP to Delete the Current Theme

Twenty Twenty-TwoやTwenty Twenty-ThreeのようなWordPressのデフォルトテーマをサイトにインストールしている場合、WordPressは自動的にそのテーマをデフォルトテーマとして使い始めます。

ただし、デフォルトテーマがインストールされていない場合は、FTPを使って手動でインストールする必要がある。

これで問題が解決したら、テーマのfunctions.phpファイルを見てください。ファイルの下に余分なスペースがある場合は、それを削除する必要があります。

テーマのfunctions.phpファイル内で不適切にコーディングされた関数を使用している場合、同様に死の白い画面のエラーを引き起こす可能性があります。

テーマの新しいコピーをソースからダウンロードし、FTPを使用して手動でインストールすることを検討してください。

6.WordPressのエラーをキャッチするためにデバッグモードを有効化する

今のところ何も解決していない場合、次のステップはWordPressのデバッグをオンにすることです。そうすることで、どのようなエラーが出力されているかを確認できるエラーログが記録されます。

以下のコードをwp-config.phpファイルに追加するだけです:

define( 'WP_DEBUG', true);
define( 'WP_DEBUG_LOG', true );

これを追加すると、真っ白な画面にエラー、警告、通知が表示されるようになります。これらは、根本的な原因を特定するのに役立つかもしれません。

エラーが表示されない場合は、デバッグ・ログを確認することをお勧めします。

FTPクライアントを使用して、サイトのwp-contentフォルダーにアクセスするだけです。そこには、すべてのエラー、通知、警告のログを含む新しいdebug.logファイルがあります。

Debug log

7.WordPressのキャッシュをクリアする。

バックエンドにはアクセスできても、サイトのフロントエンドが死の白い画面になっていることがある。

これは、キャッシュプラグインが原因で起こる可能性があります。その場合は、WordPressのキャッシュを空にする必要があります。

WordPressのキャッシュをクリアする方法については、こちらのガイドをご覧ください。

8.長文投稿の白画面エラーを修正する

投稿日やページが非常に長い場合にのみ死の白い画面が表示されるのであれば、この方法が有効かもしれない。

このトリックは基本的に、再帰とバックトラックの制限を増やすことでPHPのテキスト処理能力を向上させます。以下のコードをwp-config.phpファイルに貼り付けてください:

/** Trick for long posts */
ini_set('pcre.recursion_limit',20000000);
ini_set('pcre.backtrack_limit',10000000);

私たちは、これが非常にイライラさせるエラーであることを理解しています。

また、WordPressのトラブルシューティングやWordPressのブロックエディターに関するよくあるトラブルとその対処法もご覧ください。

If you liked this article, then please subscribe to our YouTube Channel for WordPress video tutorials. You can also find us on Twitter and Facebook.

情報開示 私たちのコンテンツは読者支援型です。これは、あなたが私たちのリンクの一部をクリックした場合、私たちはコミッションを得ることができることを意味します。 WPBeginnerの資金源 をご覧ください。3$編集プロセスをご覧ください。

アバター

Editorial Staff at WPBeginner is a team of WordPress experts led by Syed Balkhi with over 16 years of experience in WordPress, Web Hosting, eCommerce, SEO, and Marketing. Started in 2009, WPBeginner is now the largest free WordPress resource site in the industry and is often referred to as the Wikipedia for WordPress.

究極のWordPressツールキット

ツールキットへの無料アクセス - すべてのプロフェッショナルが持つべきWordPress関連製品とリソースのコレクション!

Reader Interactions

295件のコメント返信を残す

  1. Dagoberto

    I need to downgrade 3.9.2 to 3.9.1.

  2. Sylvester Lapisang

    Thanks for the post, deactivated all the plugins and it worked, Zopim Chat was the problem

  3. wohfab

    It was a crashed functions.php for me (desptie I did not change anything o.o) – THANK YOU SO MUCH!

  4. Aleksandar

    Great tips. In my case (WP v.3.5.1) problem was plugin wp-super-cache. I just delete it and all works ok. I didn’t have time to update and upgrade instalation and plugins.. So maybe this helps.

  5. Chris

    Thanks, both removing plugins and changing themes to default worked for me. but my prob is i can’t activate my plugins. it’ll just open another white screen of death. all plugins.

  6. Hans Haupt

    Thank you so much for your post.

    I tried updating my theme and was met with the ‘White Screen of Death’.

    I took your advice to delete the problematic theme from the site cPanel and ‘presto’, I was able to log back into wordpress and change the theme to one that works.

  7. Bryan Myers

    Here’s something else to look for- make sure you close out the php tag on the page information block (not sure of it’s real name) at the top of your template page. doh.

  8. Kaveh

    Thank you so much
    Your instruction helped me fix my problem :)
    tnx again

  9. bashar

    Thank you so much.. Problem is solve.
    Really loving wpbeginner.com

  10. Tommy

    Hey all I had this problem too and found a solution. It seemed to happen from updating from 3.71 to 3.72.

    Ok so I tried the following:

    rename plugin folder
    delete theme
    change memory in config file
    report errors in config file

    I then saw the error:

    Parse error: syntax error, unexpected $end in /home/public_html/wp-includes/cron.php on line 247

    I checked the cron.php and it looked like loads of the code was cut off because it endee with a comment. So I uploaded a new cron.php file from wordpress and it worked.

    I hope this may help others who have this issue.

    Thanks

  11. Mike

    It’s the first time I write here. In my case, everything is blank, I can’t even log in with
    It is still under construction, so I just uploaded a new theme and all went blank.

    I know I have to revert the theme to the “twenty twelve”, but how? If I can’t even log in.

    any help?! THANK YOU

    • WPBeginner Support

      Connect to your website using an FTP client, go to /wp-content/themes/ directory and delete the theme you just uploaded. If your webhost offers cPanel, then you can use file manager in cPanel to delete the theme.

      管理者

  12. Jay Lawrence

    Here’s another way to get WSOD! My template, from Yoo Themes, generates a ‘cache’ directory. I accidentally filled the drive with this website causing a zero byte cache file.

    root@www:/var/www/wp-content/themes/yoo_vanilla_wp# ls -l cache/
    total 32
    -rw-r–r– 1 www-data root 25 Mar 13 16:41 index.php
    -rw-r–r– 1 www-data www-data 0 Mar 13 16:43 xml-9ae22c153220f9eda980e5ec3b598954.php

    Delete the “xml*.php” files in here after you’ve cleaned up your drive … back in business.

    That only took a couple hours of hunting – groan.

    • Ope

      Sorry i deleted the xml.php file but it still came back the moment i refreshed the wp-admin page. yet WSOD persist. Any help. am using a yoo theme too

  13. Michelle

    I have this White Screen on my website, have tried EVERYTHING and nothing working. I cannot access my wordpress login or admin page. It is a new website, so I dont mind wiping it clean and starting again, but I have tried to upload a fresh install of wordpress 3 times and it keeps crashing dreamweaver. Is there any other way I can fix this?? Need help Please :(

  14. Aamna

    I am a subscriber of your site and my client is also seeing the white screen of death
    I have used all the fixes but still no success
    What I fell is that I think my clients site’s wp-content has unnecessary folders like
    1- backups (files in this folder are ( .htaccess, .backup_running, database_arcproject_co_u.sql)
    2-cache
    3-uploads(it has many folders of images)
    Please tell me what should I do?
    Thanx

    • WPBeginner Support

      First make sure that your client has a backup. If they don’t have a backup then you need to create one now before you make any further changes.

      After that you can start deleting the unnecessary files from wp-contents folder. Try deactivating all plugins by renaming the wp-content/plugins folder to wp-content/plugins.old.

      管理者

      • Aamna

        I have tried disabling the plugins but it didn’t worked.
        Anyways how can i take a backup of the site?

        • WPBeginner Support

          In case you don’t have access to the admin area, you would first need to make a database backup manually. After that you would need to download all the files from the website, using an FTP client.

  15. AJ

    One of the most common causes of whitescreen is white space at the beginning or end of a functions.php file or other php file. Often when cutting and pasting or simply editing code a line break gets in at the top or bottom and bam!!…

    Look before the tag at the bottom.

  16. jd

    i did some testing and have uploaded a new theme to the server and have added no limit on the memory and reinstalled the wp to current one. and what i found out to be an issue is with the SQL data base.. when wp tells the SQL server that i have deleted or updated info it seems to keep everything even the deleted items.. NOw the big question what did i do to fix it. well i went to the data base and erased the whole thing and then renamed it back to the same one and went to my site and enter some basic info that showed up .. and BAMMM no white screen i went and turned on the theme and continued my adjustment and creation

  17. Lea

    Hi,

    I took over a WP website for a client and I logged in once, updated the pluggins and since then, I can’t enter the Admin section of WP nor see the website. White screen of death indeed, for both.

    I have read in the comments part above that someone had the same issue, which you directed to the article “Locked out of WordPress admin area.” Unfortunately, in that article, you direct the person with a White screen of Death to the “How To fix the WorldPress White screen of death” article, which is this topic here.
    So… I am a beginner to WP and I am lost. + my client hasn’t had a website for the past 24 hours.
    I would really appreciate some help or re-direction to a tutorial/article that tell me how to actually access my admin page !

    Thanks a lot in advance.

    Lea

    • Dum

      Renaming wp super cache plugin directory in “Plugins” folder resoved the issue

  18. abdul aziz

    Brother !!!!!!!!!! Really Thank you, it was theme problem , can you suggest me how to fix this problem with same theme???

  19. Abdul Azzi

    i have followed all steps……… but still having same error..

    please suggest me what i should have to do ???

  20. Boby

    Hey, my WordPress page only can visit by me (admin), when i logout, the homepage is white screen. please help

    • WPBeginner Support

      Try switching to a default theme like twenty thirteen or twenty fourteen. If this does not solve your problem, then disable all installed plugins. Also update your permalinks.

      管理者

  21. Darlo

    Tried to update my blog today and had problems (was using Wordpress app for android). Had considered it to be an app problem and reinstalled it before considering to actually check the site (something I should really have done in hindsight). As I have more than one blog hosted on the same site (the other being fine) I started to get panicky. After diving into a net-cafe I managed to find this trouble shooting guide and now I’m back online.

    Thank you.

  22. Lark

    I’m working with the Roots theme. Turned on the computer and had a white page. Had no memory of what I had done a few weeks before. Replacing the custom theme with the default theme and then undoing changes to scripts.php and widgets.php worked for me. Wow, simple solution, but sometimes it’s quite hard to see simple troubleshooting through the panic… Thanks so much!

  23. Claudia

    Great help. 1000 Thanks
    My issue resolved.

  24. Ian

    Thank you. I thought I’d lost everything.

  25. Cesar Pietri

    Thanks,
    It was a great help
    In my case solve rename the plugins folder.

  26. Lois Wakeman

    Another cause that I just found (WSOD in site and backend) after upgrade.

    Manual upgrade via FTP was interrupted by a lost connection and somehow a file got missed.

    I used your helpful instructions to turn on debugging having ruled out themes and plugins as problems, which allowed me to trace the offending file and upload it. Voila!

  27. soeb

    Thanx it was a great help..!
    In my case it was functions.php file.

  28. Rhodon

    I had to activate the debug mode, and this is my error:
    Warning: require_once(ABSPATHwp-admin/includes/dashboard.php): failed to open stream: No such file or directory in /var/www/domains/rhodon.nl/www/wp-admin/index.php on line 13 Fatal error: require_once(): Failed opening required ‘ABSPATHwp-admin/includes/dashboard.php’ (include_path=’.:/usr/share/php:/usr/share/pear’) in /var/www/domains/rhodon.nl/www/wp-admin/index.php on line 13
    How can I solve this?
    Rhodon

  29. Junior

    I had to use the edit phpMyAdmin fix to finally get it to work. Editing the database is never fun but your clear instructions made it easy. THANKS!!!

  30. Thomas

    It was the blank lines in functions.php

    Thanks so much!
    Finally read it in the comments.

    • JohnLionFlow

      Same here! Removed the blank lines in my theme’s functions.php file and it worked.

    • earthora

      I had the white screen on everything, front and backend, was starting to panic. I removed the last blank line in functions.php and I’m all back up and running. How would it get there? I’ve never opened it on this installation?

  31. Christal

    I was able to get out of the “white screen of death” by changing my file name from plugins to plugins-temp, but then my site had reverted back to the old theme, and when I reverted to my new theme (which was installed about a month ago), all of my plugins and widgets were gone! It’s a very basic theme with all of the customizations gone! How do I recover all of this??

  32. Niné

    THANKS A MILLION!!!!

  33. Eric Gitonga

    I had to go into phpMyAdmin and into my MySQL database to drop all the wp-* tables created from a previous Wordpress install before I could solve the White Screen of Death problem. It now works just fine.

  34. Ilke

    Hi,
    I was very happy with your advice once about a year ago with a white screen on the entire front-page of a wp-website. Unfortunately, this time (and for another site) it doesn’t work so far.

    I extended the memory several times (I’m at 512M now) and changed the auto keys, that didn’t help. Now I renamed the plugins-folder to plugins.deactivated, and I get this error message:

    Fatal error: Cannot redeclare _1059195956() (previously declared in /public/sites/www.name.nl/wp-includes/version.php:9) in /public/sites/www.name.nl/wp-includes/version.php on line 9.

    Any idea what else I can try?
    Thanks for sharing all this useful information,
    Ilke

    • WPBeginner Support

      Try renaming your theme’s folder as well. After that you need to download WordPress and upload a fresh copy of themes folder to your site. WordPress will now fall back to default twenty thirteen theme. Let us know if it worked for you.

      管理者

      • Ilke

        I did rename the current themes folder and uploaded a fresh themes folder from a new wp 3.7 download. Unfortunately, that gives me a white screen altogether on the front as well as the back office and I still receive the same error-message.

        With debug set to true in wp-config I got
        Notice: WP_User->id was called with an argument that is deprecated since version 2.1
        and a few other deprecated notices as well as a notice that wp_enqueue_script and wp_enqueue_style was called incorrectly, which both refer to the functions.php

        This is really starting to worry me. Do you happen to have some other advice still?

        Best,
        Ilke

      • Ilke

        I also tried renaming the plugins-folder and uploading a fresh one. And I cleared the cache. Still I get the same error-message. Since (with debug set to true on wp-config) I get Notice: undifined index-messages concerning two plugins, should I delete those?

  35. Puja singh

    Hi, I am facing the same blank page problem for my site . I tried most of the mention step
    Disable all plugin
    Activate the default theme.
    increase the memory limit to 128 MB.

    but no luck, any help will we appreciated.

  36. suneel

    Life saving tutorial…

    Thank u very much

  37. Justin

    Thank you. I seem to get it when I’ve been making lots of updates to my site, then I get locked out and have to wait. A memory issue would make sense. Time to clean out a bunch of unused plugins.

  38. Michael Lambertz

    Another reason can be false permissions… I tried to copy a wordpress directore via unix command cp -R, and after that all copied files weren’t in the group www-data. chgrp www-data wordpress_dir/ -R did it for me ;-)

  39. Jacob Worsøe

    I have periodically white screens on both frontend and backend. The white screens occur in a completely random pattern. Are the recommendations the same in my situation or do they only apply to more permanent issues?

    • Editorial Staff

      Yes. It seems like you’re site is running out of memory because of a process that’s being ran. So the process is the same.

      管理者

  40. Hossein

    thank you soooooooooo much, my problem solved, it was because of blank lines in my functions.php

  41. LC

    I can’t even enter the Admin section of WP. I get the blank page. What should I do?

  42. Rosie

    Thanks, this was useful. I had the white screen on the live site, but WP admin was fine. I use WP Super Cache and I cleared the cache with no effect, then deactivated all plugins, and when I’d tried everything else I suddenly thought of the expired cached pages.

    If you use WP Super Cache you have to delete the expired cache too. That worked right away. Then I set my garbage collection (on the Advanced tab) to hourly instead of daily, to try to prevent it happening again.

    • Tom B.

      Hello .. thought I might add 2cents,

      I’m using WP Super Cache too and often crashed to White Screen. Looked at the wp-config.php file and found they were putting their instructions above the SQL allocation in the script, so I moved them down and added the ‘default Memory Limit’ tweak and now my site http://webinardatabase.com/ smokes!

      REF:
      First save a unmodified copy of wp-config.php to your HD.

      Open your wp-config.php, which is located in the root WordPress directory.

      Locate the WP Super Cache code (their code is obvious –three lines- the fourth is a duplicate, but I left it), and move them down (I put mine above the SALTS).

      Then add the following line: define(‘WP_MEMORY_LIMIT’, ’64M’);
      Just BEFORE the super cache, seemed logical.

      And save, check performance.

      IDK, I think this is a bug. Made no sense to be allocating cache before opening the SQL database.

      Worked for me. Prost! — Thanks Wpbeginner.com

      PS: Just noticed the post below, WP Super Cache requires permalinks be set to post name, this error appeared on a fresh install. 2 more cents.

      • Tom B.

        Follow-up.

        Had to kick WP Super Cache to the curb.. too buggy.. Gone with W3 Total Cache.

        Lone Watie: We thought about it for a long time, “Endeavor to persevere.” And when we had thought about it long enough, we declared war on the Union.

        Union = WP, really is this the answer?!

        • Tom B.

          Ps: Once the plugin is deleted, return to wp-config and manually remove WPSC lines.

          Really, no, really!?!

      • Glenn "TheeMahn" Cady

        Tom, I would like to personally extend a much deserved thanks.

        My wpconfig had define(‘WP_MEMORY_LIMIT’, ’64M’); after supercache, moving it above has closed my “White screen of death issue.” I had been refreshing for months. The site now seems fairly snappy.

        Thanks again Tom,

        TheeMahn

  43. Jacobus

    Personally I haven’t had this problem, yet, I have the problem that I have to reset my permalinks all the time because of endless redirects. Drives me crazy. Every time I publish a new post on my blog I have to set the permalinks back to standard and then back to post name. Do you know if this is host related or plugin related?

  44. Manish Anand

    Yep, turning on Debug option helped. It was incomplete uploading of query.php file.

    Thanks

  45. Joel Andrew Glovier

    Here’s another suggestion when none of the above works, try flushing your rewrite rules cache.

    I had a single page on my site returning as a blank page, and tried almost every solution above, as well as some other things (like installing Debug Bar plugin, etc) to no avail.

    I was able to narrow it down to what I assumed to be a premalink issue, however, since the page had been working before, and stopped working; and also because even when I used a different page template it still was not working properly (I had prior to that assumed to had to do with my custom wp_query in that page template).

    So I started investigating the Wordpress rewrite system, and came to find out Wordpress keeps a cache of all the custom page slugs and rewrite rules. (more about that here: http://codex.wordpress.org/Rewrite_API/flush_rules and here: http://codex.wordpress.org/Function_Reference/WP_Rewrite)

    I also found that this method is used to flush the rewrite cache: $wp_rewrite->flush_rules();

    So I tried just adding it to the second line in my functions.php file, and after one page refresh the page contents showed up again.

    IMPORTANT: make sure to remove the method after using it once, as there are some costly performance hits associated with leaving that code in your file. You should only need to use it once to resolve the issue, however.

    • Editorial Staff

      Saving the permalinks settings again will also flush the rewrite rules from our understanding. Thanks for the suggestion about this :)

      管理者

      • Joel Andrew Glovier

        Yeah, but that didn’t work in my case. In fact, normally you don’t even have to save the Permalink settings page, just visit it. But in my case that neither visiting, nor saving, nor chaning to another setting and changing back worked.

        But actually I discovered it was something much more obscure, and the flushing was only a temporary band-aid.

        Turns out I had a conflict between a page with the title/slug of “team” and a custom post-type with the rewrite slug of “team”. The custom post type ended up winning out, except when I put the rules flush in place, in which case it stopped it from winning out.

        But the real reason I was getting the white screen was because when the custom-post type slug was winning out, it was defaulting to rendering the page with the archive.php file, which I had created (as my theme is from scratch), but not put any markup in yet. The file was completely blank, hence my white screen.

        Womp womp womp wanhhhhh.

        • Editorial Staff

          Yup that would do it. We learnt that the hard way by looking at one of our user’s themes.

    • Christian

      !!IF YOU TRIED EVERYTHING THIS WILL WORKS!!!

      Nothing else could even make a change in the BLANK PAGE.
      I put that code an recivied a error, after that I removed it and the website was online again!

      I was about to broke my laptop hahahha

  46. Jonath Lee

    Whenever you’re testing themes or plugins, always leave a tab for “Themes”. In case of WSOD, you may still able to activate the default twenty eleven themes.

    • Editorial Staff

      That doesn’t work if your admin is also locked. The next screen will just return a white screen of death too.

      管理者

      • Jonath Lee

        It could? May be I haven’t reach the Admin Lock level so, I guess we should leave the tab for the phpmyadmin page instead +_+

  47. Johnny

    Damn! Just seen the section in the article about the functions.php file – oops! Oh well it will teach me not to read so quickly!

  48. Johnny

    Another ‘gotcha’ is whitespace below the closing ?> in your functions.php file. I got this once a while back and deleting the whitespace below it solved the problem. This can also cause a white screen after hitting the publish button as well.

返信を残す

コメントありがとうございます。すべてのコメントは私たちのコメントポリシーに従ってモデレートされ、あなたのメールアドレスが公開されることはありませんのでご留意ください。名前欄にキーワードを使用しないでください。個人的で有意義な会話をしましょう。