When using CLI, warning printed because SERVER_NAME not defined

[paulschreiber]

When using the WP CLI, a warning and backtrace are printed:

$ wp shell
Request URL: https://tu.test/wp-cron.php?doing_wp_cron=1565290287.2607619762420654296875
Response Code: 
PHP Notice:  Undefined index: SERVER_NAME in /srv/www/theundefeated/public_html/wp-includes/rest-api.php on line 378
PHP Stack trace:
PHP   1. {main}() /usr/local/bin/wp:0
PHP   2. include() /usr/local/bin/wp:4
PHP   3. include() phar:///usr/local/bin/wp/php/boot-phar.php:11
PHP   4. WP_CLI\bootstrap() phar:///usr/local/bin/wp/vendor/wp-cli/wp-cli/php/wp-cli.php:27
PHP   5. WP_CLI\Bootstrap\LaunchRunner->process($state = class WP_CLI\Bootstrap\BootstrapState { private $state = array () }) phar:///usr/local/bin/wp/vendor/wp-cli/wp-cli/php/bootstrap.php:74
PHP   6. WP_CLI\Runner->start() phar:///usr/local/bin/wp/vendor/wp-cli/wp-cli/php/WP_CLI/Bootstrap/LaunchRunner.php:23
PHP   7. WP_CLI\Runner->load_wordpress() phar:///usr/local/bin/wp/vendor/wp-cli/wp-cli/php/WP_CLI/Runner.php:1130
PHP   8. require() phar:///usr/local/bin/wp/vendor/wp-cli/wp-cli/php/WP_CLI/Runner.php:1209
PHP   9. do_action($tag = 'wp_loaded', $arg = *uninitialized*) /srv/www/theundefeated/public_html/wp-settings.php:546
PHP  10. WP_Hook->do_action($args = array (0 => '')) /srv/www/theundefeated/public_html/wp-includes/plugin.php:465
PHP  11. WP_Hook->apply_filters($value = '', $args = array (0 => '')) /srv/www/theundefeated/public_html/wp-includes/class-wp-hook.php:310
PHP  12. Jetpack->register_assets('') /srv/www/theundefeated/public_html/wp-includes/class-wp-hook.php:286
PHP  13. wp_script_is($handle = 'spin', $list = 'registered') /srv/www/theundefeated/public_html/wp-content/mu-plugins/jetpack/class.jetpack.php:1126
PHP  14. wp_scripts() /srv/www/theundefeated/public_html/wp-includes/functions.wp-scripts.php:370
PHP  15. WP_Scripts->__construct() /srv/www/theundefeated/public_html/wp-includes/functions.wp-scripts.php:23
PHP  16. WP_Scripts->init() /srv/www/theundefeated/public_html/wp-includes/class.wp-scripts.php:131
PHP  17. do_action_ref_array($tag = 'wp_default_scripts', $args = array (0 => class WP_Scripts { public $base_url = 'https://tu.test'; public $content_url = 'https://tu.test/wp-content'; public $default_version = '5.2.2'; public $in_footer = array (); public $concat = ''; public $concat_version = ''; public $do_concat = FALSE; public $print_html = ''; public $print_code = ''; public $ext_handles = ''; public $ext_version = ''; public $default_dirs = array (0 => '/wp-admin/js/', 1 => '/wp-includes/js/'); public $registered = array ('utils' => class _WP_Dependency { public $handle = 'utils'; public $src = '/wp-includes/js/utils.js'; public $deps = array (); public $ver = FALSE; public $args = NULL; public $extra = array ('data' => 'var userSettings = {"url":"\\/","uid":"0","time":"1565290287","secure":"1"};'); public $textdomain = NULL; public $translations_path = NULL }, 'common' => class _WP_Dependency { public $handle = 'common'; public $src = '/wp-admin/js/common.js'; public $deps = array (0 => 'jquery', 1 => 'hoverIntent', 2 => 'utils'); public $ver = FALSE; public $args = 1; public $extra = array ('data' => 'var commonL10n = {"warnDelete":"You are about to permanently delete these items from your site.\\nThis action cannot be undone.\\n \'Cancel\' to stop, \'OK\' to delete.","dismiss":"Dismiss this notice.","collapseMenu":"Collapse Main menu","expandMenu":"Expand Main menu"};'); public $textdomain = NULL; public $translations_path = NULL }, 'wp-a11y' => class _WP_Dependency { public $handle = 'wp-a11y'; public $src = '/wp-includes/js/wp-a11y.js'; public $deps = array (0 => 'jquery'); public $ver = FALSE; public $args = 1; public $extra = array (); public $textdomain = NULL; public $translations_path = NULL }, 'sack' => class _WP_Dependency { public $handle = 'sack'; public $src = '/wp-includes/js/tw-sack.js'; public $deps = array (); public $ver = '1.6.1'; public $args = 1; public $extra = array (); public $textdomain = NULL; public $translations_path = NULL }, 'quicktags' => class _WP_Dependency { public $handle = 'quicktags'; public $src = '/wp-includes/js/quicktags.js'; public $deps = array (); public $ver = FALSE; public $args = 1; public $extra = array ('data' => 'var quicktagsL10n = {"closeAllOpenTags":"Close all open tags","closeTags":"close tags","enterURL":"Enter the URL","enterImageURL":"Enter the URL of the image","enterImageDescription":"Enter a description of the image","textdirection":"text direction","toggleTextdirection":"Toggle Editor Text Direction","dfw":"Distraction-free writing mode","strong":"Bold","strongClose":"Close bold tag","em":"Italic","emClose":"Close italic tag","link":"Insert link","blockquote":"Blockquote","blockquoteClose":"Close blockquote tag","del":"Deleted text (strikethrough)","delClose":"Close deleted text tag","ins":"Inserted text","insClose":"Close inserted text tag","image":"Insert image","ul":"Bulleted list","ulClose":"Close bulleted list tag","ol":"Numbered list","olClose":"Close numbered list tag","li":"List item","liClose":"Close list item tag","code":"Code","codeClose":"Close code tag","more":"Insert Read More tag"};'); public $textdomain = NULL; public $translations_path = NULL }, 'colorpicker' => class _WP_Dependency { public $handle = 'colorpicker'; public $src = '/wp-includes/js/colorpicker.js'; public $deps = array (0 => 'prototype'); public $ver = '3517m'; public $args = NULL; public $extra = array (); public $textdomain = NULL; public $translations_path = NULL }, 'editor' => class _WP_Dependency { public $handle = 'editor'; public $src = '/wp-admin/js/editor.js'; public $deps = array (0 => 'utils', 1 => 'jquery'); public $ver = FALSE; public $args = 1; public $extra = array (); public $textdomain = NULL; public $translations_path = NULL }, 'clipboard' => class _WP_Dependency { public $handle = 'clipboard'; public $src = '/wp-includes/js/clipboard.js'; public $deps = array (); public $ver = FALSE; public $args = 1; public $extra = array (); public $textdomain = NULL; public $translations_path = NULL }, 'wp-fullscreen-stub' => class _WP_Dependency { public $handle = 'wp-fullscreen-stub'; public $src = '/wp-admin/js/wp-fullscreen-stub.js'; public $deps = array (); public $ver = FALSE; public $args = 1; public $extra = array (); public $textdomain = NULL; public $translations_path = NULL }, 'wp-ajax-response' => class _WP_Dependency { public $handle = 'wp-ajax-response'; public $src = '/wp-includes/js/wp-ajax-response.js'; public $deps = array (0 => 'jquery'); public $ver = FALSE; public $args = 1; public $extra = array ('data' => 'var wpAjax = {"noPerm":"Sorry, you are not allowed to do that.","broken":"Something went wrong."};'); public $textdomain = NULL; public $translations_path = NULL }, 'wp-api-request' => class _WP_Dependency { public $handle = 'wp-api-request'; public $src = '/wp-includes/js/api-request.js'; public $deps = array (0 => 'jquery'); public $ver = FALSE; public $args = 1; public $extra = array (); public $textdomain = NULL; public $translations_path = NULL }); public $queue = array (); public $to_do = array (); public $done = array (); public $args = array (); public $groups = array (); public $group = 0 })) /srv/www/theundefeated/public_html/wp-includes/class.wp-scripts.php:148
PHP  18. WP_Hook->do_action($args = array (0 => class WP_Scripts { public $base_url = 'https://tu.test'; public $content_url = 'https://tu.test/wp-content'; public $default_version = '5.2.2'; public $in_footer = array (); public $concat = ''; public $concat_version = ''; public $do_concat = FALSE; public $print_html = ''; public $print_code = ''; public $ext_handles = ''; public $ext_version = ''; public $default_dirs = array (0 => '/wp-admin/js/', 1 => '/wp-includes/js/'); public $registered = array ('utils' => class _WP_Dependency { public $handle = 'utils'; public $src = '/wp-includes/js/utils.js'; public $deps = array (); public $ver = FALSE; public $args = NULL; public $extra = array ('data' => 'var userSettings = {"url":"\\/","uid":"0","time":"1565290287","secure":"1"};'); public $textdomain = NULL; public $translations_path = NULL }, 'common' => class _WP_Dependency { public $handle = 'common'; public $src = '/wp-admin/js/common.js'; public $deps = array (0 => 'jquery', 1 => 'hoverIntent', 2 => 'utils'); public $ver = FALSE; public $args = 1; public $extra = array ('data' => 'var commonL10n = {"warnDelete":"You are about to permanently delete these items from your site.\\nThis action cannot be undone.\\n \'Cancel\' to stop, \'OK\' to delete.","dismiss":"Dismiss this notice.","collapseMenu":"Collapse Main menu","expandMenu":"Expand Main menu"};'); public $textdomain = NULL; public $translations_path = NULL }, 'wp-a11y' => class _WP_Dependency { public $handle = 'wp-a11y'; public $src = '/wp-includes/js/wp-a11y.js'; public $deps = array (0 => 'jquery'); public $ver = FALSE; public $args = 1; public $extra = array (); public $textdomain = NULL; public $translations_path = NULL }, 'sack' => class _WP_Dependency { public $handle = 'sack'; public $src = '/wp-includes/js/tw-sack.js'; public $deps = array (); public $ver = '1.6.1'; public $args = 1; public $extra = array (); public $textdomain = NULL; public $translations_path = NULL }, 'quicktags' => class _WP_Dependency { public $handle = 'quicktags'; public $src = '/wp-includes/js/quicktags.js'; public $deps = array (); public $ver = FALSE; public $args = 1; public $extra = array ('data' => 'var quicktagsL10n = {"closeAllOpenTags":"Close all open tags","closeTags":"close tags","enterURL":"Enter the URL","enterImageURL":"Enter the URL of the image","enterImageDescription":"Enter a description of the image","textdirection":"text direction","toggleTextdirection":"Toggle Editor Text Direction","dfw":"Distraction-free writing mode","strong":"Bold","strongClose":"Close bold tag","em":"Italic","emClose":"Close italic tag","link":"Insert link","blockquote":"Blockquote","blockquoteClose":"Close blockquote tag","del":"Deleted text (strikethrough)","delClose":"Close deleted text tag","ins":"Inserted text","insClose":"Close inserted text tag","image":"Insert image","ul":"Bulleted list","ulClose":"Close bulleted list tag","ol":"Numbered list","olClose":"Close numbered list tag","li":"List item","liClose":"Close list item tag","code":"Code","codeClose":"Close code tag","more":"Insert Read More tag"};'); public $textdomain = NULL; public $translations_path = NULL }, 'colorpicker' => class _WP_Dependency { public $handle = 'colorpicker'; public $src = '/wp-includes/js/colorpicker.js'; public $deps = array (0 => 'prototype'); public $ver = '3517m'; public $args = NULL; public $extra = array (); public $textdomain = NULL; public $translations_path = NULL }, 'editor' => class _WP_Dependency { public $handle = 'editor'; public $src = '/wp-admin/js/editor.js'; public $deps = array (0 => 'utils', 1 => 'jquery'); public $ver = FALSE; public $args = 1; public $extra = array (); public $textdomain = NULL; public $translations_path = NULL }, 'clipboard' => class _WP_Dependency { public $handle = 'clipboard'; public $src = '/wp-includes/js/clipboard.js'; public $deps = array (); public $ver = FALSE; public $args = 1; public $extra = array (); public $textdomain = NULL; public $translations_path = NULL }, 'wp-fullscreen-stub' => class _WP_Dependency { public $handle = 'wp-fullscreen-stub'; public $src = '/wp-admin/js/wp-fullscreen-stub.js'; public $deps = array (); public $ver = FALSE; public $args = 1; public $extra = array (); public $textdomain = NULL; public $translations_path = NULL }, 'wp-ajax-response' => class _WP_Dependency { public $handle = 'wp-ajax-response'; public $src = '/wp-includes/js/wp-ajax-response.js'; public $deps = array (0 => 'jquery'); public $ver = FALSE; public $args = 1; public $extra = array ('data' => 'var wpAjax = {"noPerm":"Sorry, you are not allowed to do that.","broken":"Something went wrong."};'); public $textdomain = NULL; public $translations_path = NULL }, 'wp-api-request' => class _WP_Dependency { public $handle = 'wp-api-request'; public $src = '/wp-includes/js/api-request.js'; public $deps = array (0 => 'jquery'); public $ver = FALSE; public $args = 1; public $extra = array (); public $textdomain = NULL; public $translations_path = NULL }); public $queue = array (); public $to_do = array (); public $done = array (); public $args = array (); public $groups = array (); public $group = 0 })) /srv/www/theundefeated/public_html/wp-includes/plugin.php:531
PHP  19. WP_Hook->apply_filters($value = '', $args = array (0 => class WP_Scripts { public $base_url = 'https://tu.test'; public $content_url = 'https://tu.test/wp-content'; public $default_version = '5.2.2'; public $in_footer = array (); public $concat = ''; public $concat_version = ''; public $do_concat = FALSE; public $print_html = ''; public $print_code = ''; public $ext_handles = ''; public $ext_version = ''; public $default_dirs = array (0 => '/wp-admin/js/', 1 => '/wp-includes/js/'); public $registered = array ('utils' => class _WP_Dependency { public $handle = 'utils'; public $src = '/wp-includes/js/utils.js'; public $deps = array (); public $ver = FALSE; public $args = NULL; public $extra = array ('data' => 'var userSettings = {"url":"\\/","uid":"0","time":"1565290287","secure":"1"};'); public $textdomain = NULL; public $translations_path = NULL }, 'common' => class _WP_Dependency { public $handle = 'common'; public $src = '/wp-admin/js/common.js'; public $deps = array (0 => 'jquery', 1 => 'hoverIntent', 2 => 'utils'); public $ver = FALSE; public $args = 1; public $extra = array ('data' => 'var commonL10n = {"warnDelete":"You are about to permanently delete these items from your site.\\nThis action cannot be undone.\\n \'Cancel\' to stop, \'OK\' to delete.","dismiss":"Dismiss this notice.","collapseMenu":"Collapse Main menu","expandMenu":"Expand Main menu"};'); public $textdomain = NULL; public $translations_path = NULL }, 'wp-a11y' => class _WP_Dependency { public $handle = 'wp-a11y'; public $src = '/wp-includes/js/wp-a11y.js'; public $deps = array (0 => 'jquery'); public $ver = FALSE; public $args = 1; public $extra = array (); public $textdomain = NULL; public $translations_path = NULL }, 'sack' => class _WP_Dependency { public $handle = 'sack'; public $src = '/wp-includes/js/tw-sack.js'; public $deps = array (); public $ver = '1.6.1'; public $args = 1; public $extra = array (); public $textdomain = NULL; public $translations_path = NULL }, 'quicktags' => class _WP_Dependency { public $handle = 'quicktags'; public $src = '/wp-includes/js/quicktags.js'; public $deps = array (); public $ver = FALSE; public $args = 1; public $extra = array ('data' => 'var quicktagsL10n = {"closeAllOpenTags":"Close all open tags","closeTags":"close tags","enterURL":"Enter the URL","enterImageURL":"Enter the URL of the image","enterImageDescription":"Enter a description of the image","textdirection":"text direction","toggleTextdirection":"Toggle Editor Text Direction","dfw":"Distraction-free writing mode","strong":"Bold","strongClose":"Close bold tag","em":"Italic","emClose":"Close italic tag","link":"Insert link","blockquote":"Blockquote","blockquoteClose":"Close blockquote tag","del":"Deleted text (strikethrough)","delClose":"Close deleted text tag","ins":"Inserted text","insClose":"Close inserted text tag","image":"Insert image","ul":"Bulleted list","ulClose":"Close bulleted list tag","ol":"Numbered list","olClose":"Close numbered list tag","li":"List item","liClose":"Close list item tag","code":"Code","codeClose":"Close code tag","more":"Insert Read More tag"};'); public $textdomain = NULL; public $translations_path = NULL }, 'colorpicker' => class _WP_Dependency { public $handle = 'colorpicker'; public $src = '/wp-includes/js/colorpicker.js'; public $deps = array (0 => 'prototype'); public $ver = '3517m'; public $args = NULL; public $extra = array (); public $textdomain = NULL; public $translations_path = NULL }, 'editor' => class _WP_Dependency { public $handle = 'editor'; public $src = '/wp-admin/js/editor.js'; public $deps = array (0 => 'utils', 1 => 'jquery'); public $ver = FALSE; public $args = 1; public $extra = array (); public $textdomain = NULL; public $translations_path = NULL }, 'clipboard' => class _WP_Dependency { public $handle = 'clipboard'; public $src = '/wp-includes/js/clipboard.js'; public $deps = array (); public $ver = FALSE; public $args = 1; public $extra = array (); public $textdomain = NULL; public $translations_path = NULL }, 'wp-fullscreen-stub' => class _WP_Dependency { public $handle = 'wp-fullscreen-stub'; public $src = '/wp-admin/js/wp-fullscreen-stub.js'; public $deps = array (); public $ver = FALSE; public $args = 1; public $extra = array (); public $textdomain = NULL; public $translations_path = NULL }, 'wp-ajax-response' => class _WP_Dependency { public $handle = 'wp-ajax-response'; public $src = '/wp-includes/js/wp-ajax-response.js'; public $deps = array (0 => 'jquery'); public $ver = FALSE; public $args = 1; public $extra = array ('data' => 'var wpAjax = {"noPerm":"Sorry, you are not allowed to do that.","broken":"Something went wrong."};'); public $textdomain = NULL; public $translations_path = NULL }, 'wp-api-request' => class _WP_Dependency { public $handle = 'wp-api-request'; public $src = '/wp-includes/js/api-request.js'; public $deps = array (0 => 'jquery'); public $ver = FALSE; public $args = 1; public $extra = array (); public $textdomain = NULL; public $translations_path = NULL }); public $queue = array (); public $to_do = array (); public $done = array (); public $args = array (); public $groups = array (); public $group = 0 })) /srv/www/theundefeated/public_html/wp-includes/class-wp-hook.php:310
PHP  20. wp_default_scripts($scripts = class WP_Scripts { public $base_url = 'https://tu.test'; public $content_url = 'https://tu.test/wp-content'; public $default_version = '5.2.2'; public $in_footer = array (); public $concat = ''; public $concat_version = ''; public $do_concat = FALSE; public $print_html = ''; public $print_code = ''; public $ext_handles = ''; public $ext_version = ''; public $default_dirs = array (0 => '/wp-admin/js/', 1 => '/wp-includes/js/'); public $registered = array ('utils' => class _WP_Dependency { public $handle = 'utils'; public $src = '/wp-includes/js/utils.js'; public $deps = array (); public $ver = FALSE; public $args = NULL; public $extra = array ('data' => 'var userSettings = {"url":"\\/","uid":"0","time":"1565290287","secure":"1"};'); public $textdomain = NULL; public $translations_path = NULL }, 'common' => class _WP_Dependency { public $handle = 'common'; public $src = '/wp-admin/js/common.js'; public $deps = array (0 => 'jquery', 1 => 'hoverIntent', 2 => 'utils'); public $ver = FALSE; public $args = 1; public $extra = array ('data' => 'var commonL10n = {"warnDelete":"You are about to permanently delete these items from your site.\\nThis action cannot be undone.\\n \'Cancel\' to stop, \'OK\' to delete.","dismiss":"Dismiss this notice.","collapseMenu":"Collapse Main menu","expandMenu":"Expand Main menu"};'); public $textdomain = NULL; public $translations_path = NULL }, 'wp-a11y' => class _WP_Dependency { public $handle = 'wp-a11y'; public $src = '/wp-includes/js/wp-a11y.js'; public $deps = array (0 => 'jquery'); public $ver = FALSE; public $args = 1; public $extra = array (); public $textdomain = NULL; public $translations_path = NULL }, 'sack' => class _WP_Dependency { public $handle = 'sack'; public $src = '/wp-includes/js/tw-sack.js'; public $deps = array (); public $ver = '1.6.1'; public $args = 1; public $extra = array (); public $textdomain = NULL; public $translations_path = NULL }, 'quicktags' => class _WP_Dependency { public $handle = 'quicktags'; public $src = '/wp-includes/js/quicktags.js'; public $deps = array (); public $ver = FALSE; public $args = 1; public $extra = array ('data' => 'var quicktagsL10n = {"closeAllOpenTags":"Close all open tags","closeTags":"close tags","enterURL":"Enter the URL","enterImageURL":"Enter the URL of the image","enterImageDescription":"Enter a description of the image","textdirection":"text direction","toggleTextdirection":"Toggle Editor Text Direction","dfw":"Distraction-free writing mode","strong":"Bold","strongClose":"Close bold tag","em":"Italic","emClose":"Close italic tag","link":"Insert link","blockquote":"Blockquote","blockquoteClose":"Close blockquote tag","del":"Deleted text (strikethrough)","delClose":"Close deleted text tag","ins":"Inserted text","insClose":"Close inserted text tag","image":"Insert image","ul":"Bulleted list","ulClose":"Close bulleted list tag","ol":"Numbered list","olClose":"Close numbered list tag","li":"List item","liClose":"Close list item tag","code":"Code","codeClose":"Close code tag","more":"Insert Read More tag"};'); public $textdomain = NULL; public $translations_path = NULL }, 'colorpicker' => class _WP_Dependency { public $handle = 'colorpicker'; public $src = '/wp-includes/js/colorpicker.js'; public $deps = array (0 => 'prototype'); public $ver = '3517m'; public $args = NULL; public $extra = array (); public $textdomain = NULL; public $translations_path = NULL }, 'editor' => class _WP_Dependency { public $handle = 'editor'; public $src = '/wp-admin/js/editor.js'; public $deps = array (0 => 'utils', 1 => 'jquery'); public $ver = FALSE; public $args = 1; public $extra = array (); public $textdomain = NULL; public $translations_path = NULL }, 'clipboard' => class _WP_Dependency { public $handle = 'clipboard'; public $src = '/wp-includes/js/clipboard.js'; public $deps = array (); public $ver = FALSE; public $args = 1; public $extra = array (); public $textdomain = NULL; public $translations_path = NULL }, 'wp-fullscreen-stub' => class _WP_Dependency { public $handle = 'wp-fullscreen-stub'; public $src = '/wp-admin/js/wp-fullscreen-stub.js'; public $deps = array (); public $ver = FALSE; public $args = 1; public $extra = array (); public $textdomain = NULL; public $translations_path = NULL }, 'wp-ajax-response' => class _WP_Dependency { public $handle = 'wp-ajax-response'; public $src = '/wp-includes/js/wp-ajax-response.js'; public $deps = array (0 => 'jquery'); public $ver = FALSE; public $args = 1; public $extra = array ('data' => 'var wpAjax = {"noPerm":"Sorry, you are not allowed to do that.","broken":"Something went wrong."};'); public $textdomain = NULL; public $translations_path = NULL }, 'wp-api-request' => class _WP_Dependency { public $handle = 'wp-api-request'; public $src = '/wp-includes/js/api-request.js'; public $deps = array (0 => 'jquery'); public $ver = FALSE; public $args = 1; public $extra = array (); public $textdomain = NULL; public $translations_path = NULL }); public $queue = array (); public $to_do = array (); public $done = array (); public $args = array (); public $groups = array (); public $group = 0 }) /srv/www/theundefeated/public_html/wp-includes/class-wp-hook.php:286
PHP  21. get_rest_url($blog_id = *uninitialized*, $path = *uninitialized*, $scheme = *uninitialized*) /srv/www/theundefeated/public_html/wp-includes/script-loader.php:948

Adding an isset() check to rest-api.php fixes this.

[SergeyBiryukov]

In 45771:

REST API: In get_rest_url(), check if $_SERVER['SERVER_NAME'] is set to avoid a PHP warning in CLI context.

Props paulschreiber.
Fixes #47854.