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[TASK][TRAC-13103] Check DB_CHARSET before installing WP Core#12087

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[TASK][TRAC-13103] Check DB_CHARSET before installing WP Core#12087
ramonfincken wants to merge 3 commits into
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ramonfincken:trac-13103

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Trac ticket: https://core.trac.wordpress.org/ticket/13103

This will check the DB_CHARSET compatibility upon installing, preventing a non-supported (defined) DB_CHARSET to be used in DB installer.

Based on 13103.patch (816 bytes) - added by SergeyBiryukov 14 years ago.
Updated for latest (current) trunk version of git-ified WP Core.

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This Pull Request is for code review only. Please keep all other discussion in the Trac ticket. Do not merge this Pull Request. See GitHub Pull Requests for Code Review in the Core Handbook for more details.

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github-actions Bot commented Jun 4, 2026

The following accounts have interacted with this PR and/or linked issues. I will continue to update these lists as activity occurs. You can also manually ask me to refresh this list by adding the props-bot label.

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Props ramon-fincken, mukesh27.

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github-actions Bot commented Jun 4, 2026

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@mukeshpanchal27 mukeshpanchal27 left a comment

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Thanks @ramonfincken for the PR!

Let some initial feedbacks

Comment thread src/wp-admin/install.php
$mysql_version = $wpdb->db_version();
$php_compat = version_compare( $php_version, $required_php_version, '>=' );
$mysql_compat = version_compare( $mysql_version, $required_mysql_version, '>=' ) || file_exists( WP_CONTENT_DIR . '/db.php' );
$mysql_db_charset_compat = true;
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make sure to align equal signs

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it will place all others much more to the right, using spaces ...

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I can hower change to compat so -> if isset compat and compat -> then ...

Comment thread src/wp-admin/install.php Outdated
Comment thread src/wp-admin/install.php Outdated
Comment thread src/wp-admin/install.php Outdated
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2 participants