以php格式删除特定的添加字段

我有一个可以创建字段的表单，但是如何从创建的表单中删除添加的字段？甚至删除特定的字段？对不起，我有点新鲜。如果可能的话，有没有办法删除只有一行的我添加了旁边的十字按钮或什么的？以php格式删除特定的添加字段

形式

<script type="text/javascript"> 
function addTextArea(){ 
var div = document.getElementById('name'); 
div.innerHTML += "<input type='text' name='name[]' value='' />"; 
div.innerHTML += "\n<br />"; 
var div = document.getElementById('quantity'); 
div.innerHTML += "<input type='text' name='quantity[]' value ='' />"; 
div.innerHTML += "\n<br />"; 
var div = document.getElementById('amount'); 
div.innerHTML += "<input type='text' name='amount[]' value =''/>"; 
div.innerHTML += "\n<br />"; 
} 

</script> 


</head> 

<body> 

<form method="POST" action="confirm_invoice.php" > 
<?php 
echo "<table border='2'>\n"; 
echo "<tr>\n"; 
echo "<th>Description</th>\n"; 
echo "<th>Quantity</th>\n"; 
echo "<th>Amount($)</th>\n"; 
echo "</tr>"; 

echo "<tr>"; 
echo "<td>"?><input type='text' size="50" name='name[]' value='Examination and Consultation' readonly/><?php "</td>"; 
echo "<td>"?><input type='text' size="50" name='quantity[]' value='' /><?php "</td>"; 
echo "<td>"?><input type='text' size="50" name='amount[]' value='' /><?php "</td>"; 
echo "</tr>"; 

echo "<tr>"; 
echo "<td>"?><div id="name"></div> <?php "</td>"; 
echo "<td>"?><div id="quantity"></div> <?php "</td>"; 
echo "<td>"?><div id="amount"></div> <?php "</td>"; 
echo "</tr>"; 
?> 
<br /> 
<input type="button" value="Add Description" onClick="addTextArea();"> &nbsp; 
<input type="submit" name="submit" value="submit"> 
</form> 

</body> 
</html>

来源

2014-02-08 user3098046

你阅读了有关PHP手册基础知识[串]（http://us1.php.net/manual/en/language.types.string.php）以及如何[逃生]（HTTP：/ /us1.php.net/manual/en/language.basic-syntax.phpmode.php）进出PHP代码块？你可能想检查出来，因为你的PHP是错误的。这应该先解决。 –

呃不，我还没有。我在哪里阅读？ – user3098046

我*链接到** BOTH **在我上面的评论... –

你可以试试这个，工作，需要微调了一下。

<script type="text/javascript"> 

var count = 0; 

function addTextArea(){ 
count= count+1; 
var div = document.getElementById('name'); 
div.innerHTML += "<div> <input type='text' name='name[]' value='' "+"id=name"+count+"> </div>"; 
//div.innerHTML += "\n<br />"; 
var div = document.getElementById('quantity'); 
div.innerHTML += "<div><input type='text' name='quantity[]' value ='' "+"id=quantity"+count+"></div>"; 
//div.innerHTML += "\n<br />"; 
var div = document.getElementById('amount'); 
div.innerHTML += "<div><input type='text' name='amount[]' value ='' "+"id=amount"+count+"></div>"; 
//div.innerHTML += "\n<br />"; 
} 

function removeTextArea(){ 
document.getElementById("name"+count).remove(); 

document.getElementById("quantity"+count).remove(); 

document.getElementById("amount"+count).remove(); 

count = count-1; 
} 

</script> 


</head> 

<body> 

<form method="POST" action="confirm_invoice.php" > 
<?php 
echo "<table border='2'>\n"; 
echo "<tr>\n"; 
echo "<th>Description</th>\n"; 
echo "<th>Quantity</th>\n"; 
echo "<th>Amount($)</th>\n"; 
echo "</tr>"; 

echo "<tr>"; 
echo "<td>"?><input type='text' size="50" name='name[]' value='Examination and Consultation' readonly/><?php "</td>"; 
echo "<td>"?><input type='text' size="50" name='quantity[]' value='' /><?php "</td>"; 
echo "<td>"?><input type='text' size="50" name='amount[]' value='' /><?php "</td>"; 
echo "</tr>"; 

echo "<tr>"; 
echo "<td>"?><div id="name"></div> <?php "</td>"; 
echo "<td>"?><div id="quantity"></div> <?php "</td>"; 
echo "<td>"?><div id="amount"></div> <?php "</td>"; 
echo "</tr>"; 
?> 
<br /> 
<input type="button" value="Add Description" onClick="addTextArea();"> &nbsp; 
<input type="submit" name="submit" value="submit"> 

<input type="button" value="Remove Description" onClick="removeTextArea();"> &nbsp; 
<input type="submit" name="submit" value="submit"> 

</form> 

</body> 
</html>

来源

2014-02-08 10:33:51

以php格式删除特定的添加字段

回答

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