Question

我有一些php代码会创建一个字段，然后是其他一些代码，你将信息放入文本框，然后在另一个php文件中显示文本框中输入的数据。

我有这个代码和截图。这将创建名字，年龄等字段。每次我点击这里提交，它都会转到方法post add.php。我不是在这里提供代码，因为它没关系。

添加字段的index.php的屏幕截图：
Screenshot for index.php that adds fields

添加字段的代码

<?php


function renderForm($fieldname, $fieldtype, $fieldgroup,$error)

{

?>

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>FIELDS</title>

<style>

	label{
	float: left;
	margin-right: 0.5em;
	}

	</style>
</head>

<body>

<?php

if ($error != '')
{
echo '<div style="padding:4px; border:1px solid red; color:red;">'.$error.'</div>';
}

?>

<h1>ADD FIELDS</h1>

<form action="" method="post">

<label for = "fieldname"> Field Name:  <input type="text" name="fieldname"><br>
  <br></label>
  
 <label for = "fieldtype"> Field Type:  <select name="fieldtype">
  <option value="Text">Text</option>
  <option value="Date/Time">Date/Time Picker</option>
  <option value="Number">Number</option>
</select>
</label>
	<label for = "fieldgroup"> Field Group:  <select name="fieldgroup">
  <option value=1>1</option>
  <option value=2>2</option>
  <option value=3>3</option>
</select>
</label>
  
  <input type="submit" name="submit" value="Submit">  

</form>

<h1>VIEW</h1>
<?php

include('connect.php');


$result = mysql_query("SELECT * FROM fields")

or die(mysql_error());

echo "<table border='1' cellpadding='10'>";

echo "<tr> <th>ID</th> <th>Field Name</th> <th>Field Type</th><th>Field Group</th></tr>";

while($row = mysql_fetch_array( $result )) {

echo "<tr>";

echo '<td>' . $row['ID'] . '</td>';

echo '<td>' . $row['fieldname'] . '</td>';

echo '<td>' . $row['fieldtype'] . '</td>';

echo '<td>' . $row['fieldgroup'] . '</td>';

echo '<td><a href="edit.php?id=' . $row['ID'] . '">Edit</a></td>';

echo '<td><a href="delete.php?id=' . $row['ID'] . '">Delete</a></td>';

echo "</tr>";

}


// close table>

echo "</table>";

?>

</body>
</html>

<?php

}

include('connect.php');


if (isset($_POST['submit']))
{
$fieldname = mysql_real_escape_string(htmlspecialchars($_POST['fieldname']));
$fieldtype = mysql_real_escape_string(htmlspecialchars($_POST['fieldtype']));
$fieldgroup = mysql_real_escape_string(htmlspecialchars($_POST['fieldgroup']));


if ($fieldname == '' || $fieldtype == '' || $fieldgroup == '')
{
$error = 'ERROR: Please fill in all required fields!';

renderForm($fieldname, $fieldtype, $fieldgroup, $error);
}
else
{
mysql_query("INSERT INTO fields (fieldname,fieldtype,fieldgroup) VALUES('$fieldname','$fieldtype', '$fieldgroup')") or die (mysql_error());

header("Location: index.php");
}
}
else	
{
renderForm('','','','','');
}

?>

view.php的截图：
Screenshot for view.php

此代码用于创建显示之前字段的表单。

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">

<html>

<head>

<title>View Records</title>

</head>

<body>


<?php
include('connect.php');

$result = mysql_query("SELECT * FROM fields")

or die(mysql_error());

echo "<form action = 'test.php' method='POST'>
<table border='1' cellpadding='10'>";

echo "<tr>  <th>Field Name</th> <th>Value</th></tr>";


while($row = mysql_fetch_array( $result )) {

echo "<tr>";	
echo '<td> <name= "lbl[]" value ='. $row['ID'] . '"\>'.  $row['fieldname'] .  '</td>';
echo "<td> <input type ='text' name= 'val[]'> </td>"; 
 
echo "</tr>";

}
echo "</table>";
echo "<br>";
echo "<input type ='submit' name='Submit' value='Submit'>";
echo "</form>"?>

</body>

</html>

点击提交后，转到test.php，这是代码。这是我遇到问题的地方。它不显示view.php中插入的值

<?php 

	if(isset($_POST['val[]']))
	{
			$valid = $_POST['val[]'];
		
			
			for($a = 0; $a<$valid.length; $a++)
			{
				echo $valid[$a];
			}
	}

?>

Answer 1

从你的帖子中删除[]，使它看起来像这样：$ _POST ['val']

试试这个

<?php 

    if(isset($_POST['val']))
    {
            $valid = $_POST['val'];


            for($a = 0; $a<$valid.length; $a++)
            {
                echo $valid[$a];

            }

    }

＆GT;

动态控制数组PHP

1 个答案: