mysqli field count - 语法
mysqli_field_count(connection);
它返回最近查询的列数。
| Sr.No |
参数 & Description |
| 1 |
connection
它指定MySQL连接
|
mysqli field count - 返回值
它返回输出集中的列数
mysqli field count - 示例
<?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(connectionmysql</span><spanclass="pun">,</span><spanclass="str">"SELECT∗FROMPersons"</span><spanclass="pun">);</span><spanclass="pln"></span><spanclass="kwd">print</span><spanclass="pun">(</span><spanclass="pln">mysqlifieldcount</span><spanclass="pun">(</span><spanclass="pln">connection_mysql));
mysqli_close($connection_mysql);
?>
参考链接
www.learnfk.com/php/php-mys…
