mysqli_query(connection,query,resultmode);
它对数据库执行查询。
Sr.No | 参数 & Description |
---|---|
1 |
connection 链接:https://www.learnfk.comhttps://www.learnfk.com/php/php-function-mysqli-query.html 来源:LearnFk无涯教程网 它指定要使用的连接 |
2 |
query 它指定查询字符串 |
3 |
resultmode 它指定MYSQLI_USE_RESULT |
如果选择(SELECT)、显示(SHOW)、描述(DESCRIBE)或解释(EXPLAIN)查询成功,则返回true;如果失败,则返回false。
<?php $connection_mysql=mysqli_connect("localhost","user","password","db"); if (mysqli_connect_errno($connection_mysql)){ echo "Failed to connect to MySQL: " . mysqli_connect_error(); } mysqli_query($connection_mysql,"SELECT * FROM emp"); mysqli_query($connection_mysql,"INSERT INTO emp (name) VALUES ('PHP')"); mysqli_close($connection_mysql); ?>
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