বড় কোন টেক্সট (৬০০/৭০০ অক্ষরের টেক্সট) ডাটাবেজে ইনসার্ট হচ্ছে না

<?php
	if(isset($_POST["smit"])){
		$newsHead=$_POST["txtNews"];
		$txtDetail=$_POST["txtDetail"];
		
		$db=new MySQLi("localhost","root","","news");
		$db->query("insert into info(head, detail) values('$newsHead','$txtDetail')");
		}
?>

<form action="#" method="post" enctype="multipart/form-data">
	<table>
    	<tr><td>Title :</td><td><input type="text" name="txtNews" /></td></tr>
        <tr><td>Details :</td><td><textarea name="txtDetail"></textarea></td></tr>
        <tr><td></td><td><input type="submit" name="smit" value="Save" /></td></tr>
    </table>
</form>

Database Table

use database_name;
drop table if exists table_name;
create table table_name(
	id int(25) primary key auto_increment,
	head varchar(50),
	detail varchar(255)
);