[MySQL]MySQL接続エラー(mysqlnd cannot connect to MySQL 4.1+ using the old insecure authentication)PHPMySQL 事象 PHPから外部DBであるMySQLへの接続でエラーが発生 確認内容 接続先情報について何度も確認したが問題ない 別サーバからの接続テストでMySQLへ接続できることを確認 エラー内容をもうよく一度見る 英文 mysqlnd cannot connect to MySQL 4.1+ using the old insecure authentication. Please use an administration tool to reset your password with the command SET PASSWORD = PASSWORD('your_existing_pa
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