Weird data output about PHP & MySQL - php

Question

It's wired that only Field name is correct but others. I can't get the the expected result from the code.
How get the correct meta data from the database?
The expected result
Actual result
<?php
// Open a connection to the server and USE the winestore
$link = mysqli_connect("localhost","root","","winestore");
/* check connection */
if (mysqli_connect_errno())
{
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
// Run a query on the wine table in the winestore database to retrieve
// one row
$query = "SELECT * FROM wine LIMIT 1";
$result = mysqli_query($link, $query);
// Output a header, with headers spaced by padding
print "\n" .
str_pad("Field", 20) .
str_pad("Type", 14) .
str_pad("Null", 6) .
str_pad("Key", 5) .
str_pad("Extra", 12) . "\n";
// How many attributes are there?
$x = mysqli_num_fields($result);
// for each of the attributes in the result set
for($y=0;$y<$x;$y++)
{
// Get the meta-data for the attribute
$info = mysqli_fetch_field ($result);
// Print the attribute name
print str_pad($info->name, 20);
// Print the data type
print str_pad($info->type, 6);
// Print the field length in brackets e.g.(2)
print str_pad("({$info->max_length})", 8);
// Print out YES if attribute can be NULL
if ($info->not_null != 1)
print " YES ";
else
print " ";
// Print out selected index information
if ($info->primary_key == 1)
print " PRI ";
elseif ($info->multiple_key == 1)
print " MUL ";
elseif ($info->unique_key == 1)
print " UNI ";
// If zero-filled, print this
if ($info->zerofill)
print " Zero filled";
// Start a new line
print "\n";
}
mysqli_free_result($result);
mysqli_close($link);
?>

Answer 1

As per the query the expected result is the detail of the table structure and for that one can use mysql Describe table query which will provide the structure of the table.
<?php
$con = mysqli_connect(HOST,USER,PASSWORD,DATABASE NAME);
$data = mysqli_query($con,"DESCRIBE tablename");
?>
<table>
<tr>
<td>Field</td>
<td>Type</td>
<td>Null</td>
<td>Key</td>
<td>Default</td>
<td>Extra</td>
</tr>
<?php while($row=mysqli_fetch_array($data,MYSQLI_ASSOC)){ ?>
<tr>
<td><?php echo $row['Field']; ?></td>
<td><?php echo $row['Type']; ?></td>
<td><?php echo $row['Null']; ?></td>
<td><?php echo $row['Key']; ?></td>
<td><?php echo $row['Default']; ?></td>
<td><?php echo $row['Extra']; ?></td>
</tr>
<?php } ?>
</table>
As per the query the expected result is the detail of the table structure and for that one can use mysql Describe table query which will provide the structure of the table.

Answer 2

you can try following code.I think it will help you.
<?php
error_reporting(0);
$conn = mysqli_connect('localhost', 'root', '');
if (!$conn) {
die('Could not connect: ' . mysql_error());
}
mysql_select_db('winestore');
$result = mysql_query('SELECT * FROM wine LIMIT 0,1');
if (!$result) {
die('Query failed: ' . mysql_error());
}
?>
<table>
<th>Field</th>
<th>Type</th>
<th>Null</th>
<th>Key</th>
<th>Extra</th>
<?php
/* get column metadata */
$i = 0;
while ($i < mysql_num_fields($result)) {
$meta = mysql_fetch_field($result, $i);
if (!$meta) {
echo "No information available<br />\n";
}
$i++;
?>
<tr>
<td><?php echo $meta->name;?></td>
<td><?php echo $meta->type."(".$meta->max_length.")";?></td>
<td><?php if($meta->not_null==1){echo 'NO';}else{echo 'YES';}?></td>
<td><?php if($meta->multiple_key==1){ echo 'MUL';}if($meta->primary_key==1){echo 'PRI';}?></td>
<td><?php echo $meta->not_null;?></td>
</tr>
<?php
}
mysql_free_result($result);
?>
if you have any more doubt about this issue,please visit this link http://php.net/manual/en/function.mysql-fetch-field.php