Provide better error handling for MySQL client and server utf8mb4 incompatibility [#2529188] | Drupal.org
2021.07.21] How to solve ERROR 1300 (HY000) at line 1: Invalid utf8mb4 character string: '"' on MySQL?
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2021.07.21] How to solve ERROR 1300 (HY000) at line 1: Invalid utf8mb4 character string: '"' on MySQL?
Support full UTF-8 (emojis, Asian symbols, mathematical symbols) on MySQL and other database drivers when they are configured to allow it [#2488180] | Drupal.org
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Database | self –help
ERROR 1300 (HY000): Invalid utf8 character string: '\xA1\xAF'_佳崴的博客-CSDN博客