问题描述
我有5个文本框,名称为textbox1,textbox2 ... textbox5。现在我想要的是,而不是将它们的每个值分别放在一个变量中,我想在循环中完成它,我在这里有我的代码,但是在输入提交错误后,比如
和
。请查看错在哪里与我的代码。
$ $ p $ if(isset($ _ POST ['submit'])){
for($ i = 0; $ i< 5; $ i ++){
$ sasa = $ _POST [textbox。[$ i]。];
$ sql =插入sasa(sasa)值('$ sasa');
$ q = $ conn-> query($ sql);
}
}
问题是这一行: $ sasa = $ _POST [textbox。[$ i]。]
;
你应该这样做:
if(isset $ _BOST ['submit'])){
if(is_array($ _ POST [textbox])){
foreach($ _ POST [textbox] as $ sasa){
//这是不安全的,使用预处理语句来代替
$ sql =插入sasa(sasa)值('$ sasa');
$ q = $ conn-> query($ sql);
$ b code
$ b 这允许你可以写下你的表格:
< form method =post...>
< input type =textname =textbox []/>
< input type =textname =textbox []/>
< input type =textname =textbox []/>
< button type =submit>提交< / button>
< / form>
在回答您的评论时,您可以如何使用jQuery来添加/删除输入内容:
var control = $('< div class =controls>< / div>');
control.append(< input class ='form-control'type ='text'name ='textbox []'placeholder ='textbox'/>< a href ='#'class =' remove_this btn btn-danger'>删除< / a>);
control.appendTo('form');
control.find('。remove_this')。click(function(){
control.remove();
});
i have 5 textboxes with the name of textbox1,textbox2 ... textbox5. now what i want is that instead of putting each of their value in a variable individually I want to do it in a loop, i have my code here but after i enter submit errors like
and
.please see what's wrong with my code.
if(isset($_POST['submit'])){
for($i=0; $i<5; $i++){
$sasa = $_POST["textbox".[$i].""];
$sql="INSERT into sasa (sasa) values('$sasa')";
$q=$conn->query($sql);
}
}
解决方案 The problem is this line: $sasa = $_POST["textbox".[$i].""]
;
You should do it as follows:
if(isset($_POST['submit'])){
if(is_array($_POST["textbox"])){
foreach($_POST["textbox"] as $sasa){
//This is unsafe, use prepared statements instead
$sql="INSERT into sasa (sasa) values('$sasa')";
$q=$conn->query($sql);
}
}
}
This allows you to write your form like:
<form method="post" ... >
<input type="text" name="textbox[]"/>
<input type="text" name="textbox[]"/>
<input type="text" name="textbox[]"/>
<button type="submit">Submit</button>
</form>
In answer to your comment, this is how you could add/remove inputs dinamically using jQuery:
var control = $('<div class="controls"></div>');
control.append("<input class='form-control' type='text' name='textbox[]' placeholder='textbox'/><a href='#' class='remove_this btn btn-danger'>remove</a>");
control.appendTo('form');
control.find('.remove_this').click(function(){
control.remove();
});
这篇关于循环内$ _post的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!