Cannot change save handler when headers already sent

  • Resolved Tim Reeves

    (@tim-reeves)


    3 years, 7 months ago

    Hi,

    I use igbinary as session serialiser but the standard “files” as save handler.

    And I’m repeatedly getting the above warning, here in full:

    [16-May-2021 01:18:04] WARNING: [pool gesandtschaft.com] child 9021 said into stderr: "NOTICE: PHP message: PHP Warning: session_set_save_handler(): Cannot change save handler when headers already sent in /var/www/vhosts/gesandtschaft.com/httpdocs/wp-content/plugins/awesome-support/vendor/ericmann/sessionz/php/Manager.php on line 133"

    I looked at the code there, below a function comment stating “Invoking this function multiple times will reset the manager itself and purge any handlers already registered with the system”:

    $manager->seedHandlerStack();
session_set_save_handler($manager);

    Would be very grateful if you could clean this up soon. Thanks!

    Tim

Viewing 12 replies - 1 through 12 (of 12 total)
  • Plugin Author yeisonbp

    (@yeisonbp)

    3 years, 7 months ago

    Hi @tim-reeves,

    Yes, we plan to launch an update with a fix to this issue. You can check the code fix from the pull request we made on the session manager library:

    – https://github.com/ericmann/wp-session-manager/pull/84/files

    Regards.

    Plugin Author yeisonbp

    (@yeisonbp)

    3 years, 6 months ago

    Hi,

    We launched an update to fix this so I will mark this as solved.

    Any questions you have, let me kwnow.

    Regards.

    Thread Starter Tim Reeves

    (@tim-reeves)

    3 years, 6 months ago

    Hi Support,

    sorry to say, that I’m still seeing this warning with 6.0.5:

    [15-Jun-2021 00:49:31] WARNING: [pool gesandtschaft.com] child 21340 said into stderr: “PHP message: PHP Warning: session_set_save_handler(): Cannot change save handler when headers already sent in /var/www/vhosts/gesandtschaft.com/httpdocs/wp-content/plugins/awesome-support/vendor/ericmann/sessionz/php/Manager.php on line 133”

    Could you have another look at it please?

    Thanks, Tim

    Thread Starter Tim Reeves

    (@tim-reeves)

    3 years, 3 months ago

    I’m still seeing this: Cannot change save handler when headers already sent in /var/www/vhosts/gesandtschaft.com/httpdoc
    s/wp-content/plugins/awesome-support/vendor/ericmann/sessionz/php/Manager.php on line 133″

    The base version of Awesome Support is still 6.0.5 (Auto-Updates active).

    Would really appreciate this being resolved, my client wants to take his new website online soon.

    Best,

    Tim

    Thread Starter Tim Reeves

    (@tim-reeves)

    3 years, 2 months ago

    Hi Support,

    the days tick by… and I’m still seeing this, since the Version of Awesome Support is still 6.0.5. Maybe you have fixed it in your code – a release would be appreciated!

    Tim Reeves

    Plugin Author yeisonbp

    (@yeisonbp)

    3 years, 2 months ago

    Hi @tim-reeves,

    What is the PHP and WordPress versions you are using? This will help to the replication of the issue.

    Best Regards.

    Plugin Author yeisonbp

    (@yeisonbp)

    3 years, 2 months ago

    Hi again,

    Could you check if the plugin on your side has this change implemented? We sent a pull request that should have fixed this. I will investigate deeper.

    – https://github.com/ericmann/wp-session-manager/pull/84/commits/c1a75b1f55271ad0fc37a585a2b597009b569e72

    Thanks.

    Plugin Author yeisonbp

    (@yeisonbp)

    3 years, 2 months ago

    Hi @tim-reeves,

    Please backup your site and test this version, let me know if this fixes the issue:

    – https://filemeto.com/#!/d?s=ufyrdX

    Best Regards.

    Thread Starter Tim Reeves

    (@tim-reeves)

    3 years, 1 month ago

    Hi @yeisonbp,

    sorry it took me some time – very busy…

    But now I have installed the new version and YES, the problem looks to be solved.

    I noticed that the current version is 5 months old – when can we expect the next release?

    Thanks,

    Tim

    Plugin Author yeisonbp

    (@yeisonbp)

    3 years, 1 month ago

    Hi @tim-reeves,

    No problem. Thanks for letting me know the issue is fixed. We are in a test round prior to the next release. It is planned to be released in up to a few weeks.

    Marking as solved, but you can reply or create a new topic anytime.

    Thread Starter Tim Reeves

    (@tim-reeves)

    3 years, 1 month ago

    I’m sorry to say that I’ve just noticed the error still happening:

    [11-Nov-2021 11:46:57] WARNING: [pool gesandtschaft.com] child 9310 said into stderr: “PHP message: PHP Warning: sessio
    n_set_save_handler(): Cannot change save handler when headers already sent in /var/www/vhosts/gesandtschaft.com/httpdocs
    /wp-content/plugins/awesome-support/vendor/ericmann/sessionz/php/Manager.php on line 133”

    This is with version 6.0.6. The website in question is still being (sporadically) worked on, is in coming soon mode. This may explain that I don’t see the problem so much.

    Here the WP-Report:

    
### wp-core ###

version: 5.8.2
site_language: de_DE
user_language: de_DE
timezone: Europe/Berlin
permalink: /%postname%/
https_status: true
multisite: false
user_registration: 1
blog_public: 1
default_comment_status: open
environment_type: production
user_count: 9
dotorg_communication: true

### wp-paths-sizes ###

wordpress_path: /var/www/vhosts/gesandtschaft.com/httpdocs
wordpress_size: loading...
uploads_path: /var/www/vhosts/gesandtschaft.com/httpdocs/wp-content/uploads
uploads_size: loading...
themes_path: /var/www/vhosts/gesandtschaft.com/httpdocs/wp-content/themes
themes_size: loading...
plugins_path: /var/www/vhosts/gesandtschaft.com/httpdocs/wp-content/plugins
plugins_size: loading...
database_size: loading...
total_size: loading...

### wp-active-theme ###

name: Thrive Theme Builder (thrive-theme)
version: 3.2.1
author: Thrive Themes
author_website: (undefined)
parent_theme: none
theme_features: core-block-patterns, widgets-block-editor, post-thumbnails, automatic-feed-links, title-tag, menus, html5, customize-selective-refresh-widgets, post-formats, tve-wc-mini-cart, woocommerce, wc-product-gallery-zoom, wc-product-gallery-lightbox, wc-product-gallery-slider, widgets
theme_path: /var/www/vhosts/gesandtschaft.com/httpdocs/wp-content/themes/thrive-theme
auto_update: Aktiviert

### wp-themes-inactive (1) ###

Twenty Twenty-One: version: 1.4, author: WordPress-Team, Automatische Aktualisierungen aktiviert

### wp-mu-plugins (1) ###

aaa-wp-cerber.php: version: 1.0, author: Cerber Tech Inc.

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Awesome Support: Canned Responses: version: 3.0.1, author: The Awesome Support Team, Automatische Aktualisierungen aktiviert
Awesome Support: Private Credentials: version: 2.0.0, author: Awesome Support, Automatische Aktualisierungen aktiviert
Awesome Support: Private Notes: version: 3.1.1, author: The Awesome Support Team (latest version: 3.2), Automatische Aktualisierungen deaktiviert
Email Encoder - Protect Email Addresses: version: 2.1.2, author: Ironikus, Automatische Aktualisierungen aktiviert
Event Tickets: version: 5.2.0.1, author: The Events Calendar, Automatische Aktualisierungen aktiviert
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Germanized for WooCommerce: version: 3.6.3, author: vendidero, Automatische Aktualisierungen aktiviert
Gravity Forms: version: 2.5.14, author: Gravity Forms, Automatische Aktualisierungen aktiviert
Imsanity: version: 2.7.2, author: Exactly WWW, Automatische Aktualisierungen aktiviert
Jetpack CRM: version: 4.5.0, author: Automattic, Automatische Aktualisierungen aktiviert
Jetpack CRM Extension: Awesome Support Connector: version: 2.6.1, author: Jetpack, Automatische Aktualisierungen aktiviert
Jetpack CRM Extension: CSV Importer PRO: version: 2.1.1, author: Jetpack, Automatische Aktualisierungen aktiviert
Jetpack CRM Extension: Funnels: version: 1.3.1, author: Jetpack, Automatische Aktualisierungen aktiviert
Jetpack CRM Extension: Gravity Forms: version: 2.8, author: Jetpack, Automatische Aktualisierungen aktiviert
Jetpack CRM Extension: System Emails Pro: version: 1.3.1, author: Jetpack, Automatische Aktualisierungen aktiviert
Jetpack CRM Extension: Woo Sync: version: 2.12, author: Jetpack, Automatische Aktualisierungen aktiviert
Manage Notification E-mails: version: 1.8.0, author: Virgial Berveling, Automatische Aktualisierungen aktiviert
Robin image optimizer: version: 1.5.6, author: Creative Motion <info@cm-wp.com>, Automatische Aktualisierungen aktiviert
SEOPress: version: 5.2.0, author: SEOPress, Automatische Aktualisierungen aktiviert
SEOPress PRO: version: 5.2.0, author: SEOPress, Automatische Aktualisierungen aktiviert
SUMO Subscriptions: version: 12.6, author: Fantastic Plugins, Automatische Aktualisierungen aktiviert
The Events Calendar: version: 5.10.1, author: The Events Calendar, Automatische Aktualisierungen aktiviert
The Events Calendar: Virtual Events: version: 1.7.1, author: The Events Calendar, Automatische Aktualisierungen aktiviert
The Events Calendar PRO: version: 5.9.2.1, author: The Events Calendar, Automatische Aktualisierungen aktiviert
Thrive Apprentice: version: 3.2.1, author: <a href="https://thrivethemes.com">Thrive Themes</a>, Automatische Aktualisierungen aktiviert
Thrive Architect: version: 3.4, author: <a href="http://www.thrivethemes.com">Thrive Themes</a>, Automatische Aktualisierungen aktiviert
Thrive Automator: version: 0.5, author: <a href="https://thrivethemes.com">Thrive Themes</a>, Automatische Aktualisierungen aktiviert
Thrive Comments: version: 2.2, author: <a href="https://thrivethemes.com">Thrive Themes</a>, Automatische Aktualisierungen aktiviert
Thrive Leads: version: 3.2, author: <a href="https://thrivethemes.com">Thrive Themes</a>, Automatische Aktualisierungen aktiviert
Thrive Ovation: version: 3.2, author: <a href="https://thrivethemes.com">Thrive Themes</a>, Automatische Aktualisierungen aktiviert
Thrive Product Manager: version: 1.2.7, author: Thrive Themes, Automatische Aktualisierungen aktiviert
Thrive Quiz Builder: version: 3.2, author: <a href="https://thrivethemes.com">Thrive Themes</a>, Automatische Aktualisierungen aktiviert
Thrive Ultimatum: version: 3.2.1, author: <a href="https://thrivethemes.com">Thrive Themes</a>, Automatische Aktualisierungen aktiviert
Webcraftic Clearfy – WordPress optimization plugin: version: 1.9.6, author: Creative Motion <info@cm-wp.com>, Automatische Aktualisierungen aktiviert
WooCommerce: version: 5.9.0, author: Automattic, Automatische Aktualisierungen aktiviert
WooCommerce Memberships: version: 1.22.0, author: SkyVerge, Automatische Aktualisierungen aktiviert
WooCommerce Multi Currency Premium: version: 2.1.11, author: VillaTheme (latest version: 2.1.22), Automatische Aktualisierungen aktiviert
WooCommerce Shipping & Tax: version: 1.25.19, author: WooCommerce, Automatische Aktualisierungen aktiviert
WP Cerber Security, Anti-spam & Malware Scan: version: 8.9.3, author: Cerber Tech Inc., Automatische Aktualisierungen aktiviert

### wp-plugins-inactive (4) ###

Optimize Database after Deleting Revisions: version: 5.0.110, author: CAGE Web Design | Rolf van Gelder, Eindhoven, The Netherlands, Automatische Aktualisierungen aktiviert
SUMO Payment Plans: version: 8.4, author: Fantastic Plugins, Automatische Aktualisierungen aktiviert
W3 Total Cache: version: 2.1.9, author: BoldGrid, Automatische Aktualisierungen aktiviert
WooCommerce Subscriptions: version: 3.1.1, author: WooCommerce, Automatische Aktualisierungen aktiviert

### wp-media ###

image_editor: WP_Image_Editor_Imagick
imagick_module_version: 1690
imagemagick_version: ImageMagick 6.9.10-23 Q16 x86_64 20190101 https://imagemagick.org
imagick_version: 3.5.1
file_uploads: File uploads is turned off
post_max_size: 513M
upload_max_filesize: 513M
max_effective_size: 513 MB
max_file_uploads: 20
imagick_limits: 
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	imagick::RESOURCETYPE_THREAD: 1
imagemagick_file_formats: 3FR, 3G2, 3GP, AAI, AI, ART, ARW, AVI, AVS, BGR, BGRA, BGRO, BIE, BMP, BMP2, BMP3, BRF, CAL, CALS, CANVAS, CAPTION, CIN, CIP, CLIP, CMYK, CMYKA, CR2, CRW, CUR, CUT, DATA, DCM, DCR, DCX, DDS, DFONT, DNG, DPX, DXT1, DXT5, EPDF, EPI, EPS, EPS2, EPS3, EPSF, EPSI, EPT, EPT2, EPT3, ERF, FAX, FILE, FITS, FRACTAL, FTP, FTS, G3, G4, GIF, GIF87, GRADIENT, GRAY, GRAYA, GROUP4, H, HALD, HDR, HEIC, HISTOGRAM, HRZ, HTM, HTML, HTTP, HTTPS, ICB, ICO, ICON, IIQ, INFO, INLINE, IPL, ISOBRL, ISOBRL6, J2C, J2K, JBG, JBIG, JNG, JNX, JP2, JPC, JPE, JPEG, JPG, JPM, JPS, JPT, JSON, K25, KDC, LABEL, M2V, M4V, MAC, MAGICK, MAP, MASK, MAT, MATTE, MEF, MIFF, MKV, MNG, MONO, MOV, MP4, MPC, MPEG, MPG, MRW, MSL, MTV, MVG, NEF, NRW, NULL, ORF, OTB, OTF, PAL, PALM, PAM, PATTERN, PBM, PCD, PCDS, PCL, PCT, PCX, PDB, PDF, PDFA, PEF, PES, PFA, PFB, PFM, PGM, PGX, PICON, PICT, PIX, PJPEG, PLASMA, PNG, PNG00, PNG24, PNG32, PNG48, PNG64, PNG8, PNM, PPM, PREVIEW, PS, PS2, PS3, PSB, PSD, PTIF, PWP, RADIAL-GRADIENT, RAF, RAS, RAW, RGB, RGBA, RGBO, RGF, RLA, RLE, RMF, RW2, SCR, SCT, SFW, SGI, SHTML, SIX, SIXEL, SPARSE-COLOR, SR2, SRF, STEGANO, SUN, TEXT, TGA, THUMBNAIL, TIFF, TIFF64, TILE, TIM, TTC, TTF, TXT, UBRL, UBRL6, UIL, UYVY, VDA, VICAR, VID, VIFF, VIPS, VST, WBMP, WEBP, WMV, WPG, X, X3F, XBM, XC, XCF, XPM, XPS, XV, XWD, YCbCr, YCbCrA, YUV
gd_version: bundled (2.1.0 compatible)
gd_formats: GIF, JPEG, PNG, WebP, BMP, XPM
ghostscript_version: 9.27

### wp-server ###

server_architecture: Linux 4.19.0-9-amd64 x86_64
httpd_software: nginx/1.20.1
php_version: 7.3.32 64bit
php_sapi: fpm-fcgi
max_input_variables: 4000
time_limit: 30
memory_limit: 512M
max_input_time: 60
upload_max_filesize: 513M
php_post_max_size: 513M
curl_version: 7.64.0 OpenSSL/1.1.1d
suhosin: false
imagick_availability: true
pretty_permalinks: true
htaccess_extra_rules: false

### wp-database ###

extension: mysqli
server_version: 10.3.31-MariaDB-0+deb10u1-log
client_version: mysqlnd 5.0.12-dev - 20150407 - $Id: 7cc7cc96e675f6d72e5cf0f267f48e167c2abb23 $

### wp-constants ###

WP_HOME: undefined
WP_SITEURL: undefined
WP_CONTENT_DIR: /var/www/vhosts/gesandtschaft.com/httpdocs/wp-content
WP_PLUGIN_DIR: /var/www/vhosts/gesandtschaft.com/httpdocs/wp-content/plugins
WP_MEMORY_LIMIT: 40M
WP_MAX_MEMORY_LIMIT: 512M
WP_DEBUG: false
WP_DEBUG_DISPLAY: true
WP_DEBUG_LOG: false
SCRIPT_DEBUG: false
WP_CACHE: false
CONCATENATE_SCRIPTS: undefined
COMPRESS_SCRIPTS: undefined
COMPRESS_CSS: undefined
WP_LOCAL_DEV: undefined
DB_CHARSET: utf8mb4
DB_COLLATE: undefined

### wp-filesystem ###

wordpress: writable
wp-content: writable
uploads: writable
plugins: writable
themes: writable
mu-plugins: writable
    Plugin Author yeisonbp

    (@yeisonbp)

    3 years, 1 month ago

    Hi @tim-reeves,

    Thanks for the details. I sent this to the development area and let you know any news as soon as I have it.

Viewing 12 replies - 1 through 12 (of 12 total)
  • The topic ‘Cannot change save handler when headers already sent’ is closed to new replies.