Question

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Closed 11 years ago.

如果有人第一次点击案文区,而是在数据库中加插,然后在数据库中点击该数据库,然后在数据库中点击该数据库之后,更新了它刚刚创建的行文,并每次更新同一文本区时都插入新行吗?

实现这一点是任何容易的事情,确实不能确定你会怎样做。

提前感谢。

Answer 1

$sql = "SELECT id FROM `certainTable` WHERE `uid`= ".$user_id." ";
$res = mysqli_query($sql) or die(mysqli_error());

if($res->num_rows > 0){
    // update query
} else {
    // insert query
}

如果用户在表格中拥有一行(,$res->num_rows > 0)更新其行文,则另加新行。

Answer 2

传真

<form id="new_one">
<textarea name="text" id="textArea"></textarea>
<input type="submit" id="submit" value="Save">
</form>

JS

$( #submit ).click(function(e){
   e.preventDefault();

var formData = $( #textArea ).val();

    $.ajax({
        type:  POST ,
        url:  /path/to/php/page/ ,
        data: formData
    }); 
});

I was going to do the PHP, but seems like that has already been posted. Hopefully that helps.

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