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12.29.2007 at 10:25PM PST, ID: 23049494
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7.0

combining a $_FILES upload method field with other fields (not directly related) when submitting a form.

Asked by naubrey in PHP and Databases, PHP Scripting Language, WebApplications

Tags: , ,

I am building a markbook web solution using PHP, MySQL etc to store student names, marks and picture.

I am using an input field of type "file" to upload a picture and store the file path to each picture in a MySQL database. The uploaded picture becomes visible when uploaded and all is working OK except When I return to edit the value in other fields in my form that I am using e.g. testmark1 I loose the file path because the value of $_FILES['file']['name'] is now ZERO. It therefore deletes the complete file path that was working before.

 I am using the <form action="<? echo $_SERVER['PHP_SELF']; ?>" method="POST" enctype="multipart/form-data"> to POST to itself.
My question is "Should I be submitting to an external  PHP file" or is it possible to work around this"?
My general question in summary is "How to combine an (upload and display picture code) inside a form with other input fields"?
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<? 
// edit.php - student data
?>
<? 
// includes connection script and the file path to upload my pictures
include("../config.php"); 
// form not yet submitted 
// display initial form with values pre-filled 
if (!isset($_POST['submit'])) 
{ 
// open database connection 
$connection = mysql_connect($host, $user, $pass) or die ("Unable to connect!"); 
 
// select database 
mysql_select_db($db) or die ("Unable to select database!"); 
 
// generate and execute query 
$id = mysql_escape_string($_GET['id']); 
$query = "SELECT studentid, first, surname, year, theclass, asses1, asses2, asses3, asses4, asses5, total, outof, percentage, picture, comment_one, comment_two FROM students WHERE studentid = '$id'"; 
$result = mysql_query($query) or die ("Error in query: $query. " . mysql_error()); 
//neil error check remove when completed
echo $query;
 
// if a result is returned 
if (mysql_num_rows($result) > 0) 
{ 
// turn it into an object 
$row = mysql_fetch_object($result); 
 
// print form with values pre-filled 
 
?>
 
<table width="500" cellpadding="2" cellspacing="2">
  <form action="<? echo $_SERVER['PHP_SELF']; ?>" method="POST" enctype="multipart/form-data">
    <input type="hidden" name="studentid" value="<? echo $id; ?>">
    <tr>
      <td valign="top"><b><font size="-1">student id</font></b></td>
      <td><input size="50" maxlength="250" type="text" name="studentid" value="<? echo $row->studentid; ?>"></td>
    </tr>
    <tr>
      <td valign="top"><b><font size="-1">surname</font></b></td>
      <td><input size="50" maxlength="250" type="text" name="surname" value="<? echo $row->surname; ?>"></td>
    </tr>
    <tr>
      <td valign="top"><b><font size="-1">first</font></b></td>
      <td><input size="50" maxlength="250" type="text" name="first" value="<? echo $row->first; ?>"></td>
    </tr>
    <tr>
      <td valign="top"><b><font size="-1">year</font></b></td>
      <td><input size="50" maxlength="250" type="text" name="year" value="<? echo $row->year; ?>"></td>
    </tr>
    <tr>
      <td valign="top"><b><font size="-1">theclass</font></b></td>
      <td><input size="50" maxlength="250" type="text" name="theclass" value="<? echo $row->theclass; ?>"></td>
    </tr>
    <tr>
      <td valign="top"><b><font size="-1">asses1</font></b></td>
      <td><input size="50" maxlength="250" type="text" name="asses1" value="<? echo $row->asses1; ?>"></td>
    </tr>
    <tr>
      <td valign="top"><b><font size="-1">asses2</font></b></td>
      <td><input size="50" maxlength="250" type="text" name="asses2" value="<? echo $row->asses2; ?>"></td>
    </tr>
    <tr>
      <td valign="top"><b><font size="-1">asses3</font></b></td>
      <td><input size="50" maxlength="250" type="text" name="asses3" value="<? echo $row->asses3; ?>"></td>
    </tr>
    <tr>
      <td valign="top"><b><font size="-1">asses4</font></b></td>
      <td><input size="50" maxlength="250" type="text" name="asses4" value="<? echo $row->asses4; ?>"></td>
    </tr>
    <tr>
      <td valign="top"><b><font size="-1">asses5</font></b></td>
      <td><input size="50" maxlength="250" type="text" name="asses5" value="<? echo $row->asses5; ?>"></td>
    </tr>
    <tr>
      <td valign="top"><b><font size="-1">total</font></b></td>
      <td><input size="50" maxlength="250" type="text" name="total" value="<? echo $row->total; ?>"></td>
    </tr>
    <tr>
      <td valign="top"><b><font size="-1">outof</font></b></td>
      <td><input size="50" maxlength="250" type="text" name="outof" value="<? echo $row->outof; ?>"></td>
    </tr>
    <tr>
      <td valign="top"><b><font size="-1">Percentage</font></b></td>
      <td><input size="50" maxlength="250" type="text" name="percentage" value="<? echo $row->percentage; ?>"></td>
    </tr>
    <tr><!-- HERE IS THE DISPLAY FILE PATH TO PICTURE FIELDS-->
      <td valign="top"><b><font size="-1">Picture file path</font></b></td>
      <td><input size = "100" type="text" maxlength="300" name="picture" value="<? echo $row->picture; ?>"></td>
    </tr>
    <tr><!-- HERE IS THE DISPLAY PICTURE TAG>
      <td><img src="<? echo $filepath.($row->picture); ?>"/></td>
    </tr>
    <tr><!-- HERE IS FILE UPLOAD FIELD-->
      <td><input type="file" name="file" size="45"></td>
    </tr>
    <tr>
      <td valign="top"><b><font size="-1">Comment one</font></b></td>
      <td><textarea name="comment_one" cols="40" rows="10"><? echo $row->comment_one; ?></textarea></td>
    </tr>
    <tr>
      <td valign="top"><b><font size="-1">Comment two</font></b></td>
      <td><textarea name="comment_two" cols="40" rows="10"><? echo $row->comment_two; ?></textarea></td>
    </tr>
    <tr>
      <td colspan=2><input type="Submit" name="submit" value="Update"></td>
    </tr>
    <tr></tr>
  </form>
</table>
<? 
} 
// no result returned 
// print graceful error message 
else 
{ 
echo "<font size=-1>That student could not be located in our database.</font>"; 
} 
} 
else 
{ 
// form submitted 
// start processing it 
} 
?>
<!-- page footer - snip -->
<? 
// edit.php - edit this student list talking to itself
?>
<!-- page header - snip -->
<? 
// form not yet submitted 
// display initial form with values pre-filled 
if (!isset($_POST['submit'])) 
{ 
// form display code 
} 
else 
{ 
// form submitted 
// start processing it 
 
// set up error list array 
$errorList = array(); 
$count = 0; 
 
// validate text input fields 
$first = mysql_escape_string($_POST['first']); 
$surname = mysql_escape_string($_POST['surname']); 
$year = mysql_escape_string($_POST['year']); 
$studentid = mysql_escape_string($_POST['studentid']); 
$theclass = mysql_escape_string($_POST['theclass']); 
$asses1 = mysql_escape_string($_POST['asses1']); 
$asses2 = mysql_escape_string($_POST['asses2']); 
$asses3 = mysql_escape_string($_POST['asses3']); 
$asses4 = mysql_escape_string($_POST['asses4']); 
$asses5 = mysql_escape_string($_POST['asses5']); 
$total = $asses1 + $asses2 + $asses3 + $asses4 + $asses5; 
//$total = mysql_escape_string($_POST['total']); 
$outof = mysql_escape_string($_POST['outof']); 
$percentage = mysql_escape_string($_POST['percentage']);
$picture = mysql_escape_string($_POST['picture']); 
$comment_one = mysql_escape_string($_POST['comment_one']);
$comment_two = mysql_escape_string($_POST['comment_two']);
$file = $filepath.mysql_escape_string($_FILES['file']['name']);
// error checking code below that I am not using
if (!$contact) { $contact = $def_contact; } 
 
// check for errors 
 
echo $errorlist;
 
if (sizeof($errorList) == 0) 
{ 
// open database connection 
$connection = mysql_connect($host, $user, $pass) or die ("Unable to connect!"); 
 
// select database 
mysql_select_db($db) or die ("Unable to select database!"); 
 
// generate and execute query // test removed picture = '$file' replaced with  picture=$picture
$query = "UPDATE students SET first = '$first', surname = '$surname', year = '$year',  studentid='$studentid', theclass ='$theclass', asses1 = '$asses1', asses2 = '$asses2', asses3 = '$asses3', asses4 = '$asses4', asses5 = '$asses5', total = '$total', outof = '$outof', percentage ='$percentage', picture = '$file', comment_one = '$comment_one', comment_two = '$comment_two' WHERE studentid = '$studentid' "; 
$result = mysql_query($query) or die ("Error in query: $query. " . mysql_error()); 
 
// print result 
echo "<font size=-1>Update successful. <a href=list.php>Go back to the main menu</a>.</font>"; 
//neil error check
echo $query;
// close database connection 
mysql_close($connection); 
} 
else 
{ 
// errors occurred 
// print as list 
echo "<font size=-1>The following errors were encountered: <br>"; 
echo "<ul>"; 
for ($x=0; $x<sizeof($errorList); $x++) 
{ 
echo "<li>$errorList[$x]"; 
} 
echo "</ul></font>"; 
}
}
?>
<?php 	// my upload handler here
 
	if( $_FILES['file']['name'] != "" )
	{
	  copy ( $_FILES['file']['tmp_name'], //change this path when uploaded to server
		 "C:/xampp/htdocs/student_markbook/admin/temp/" . $_FILES['file']['name'] ) 
	  or die( "Could not copy file" );
	}
	else
	{
	  die( "No file specified" );
	}
 
?>
[+][-]12.30.2007 at 04:25AM PST, ID: 20550559

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[+][-]12.30.2007 at 05:33PM PST, ID: 20552965

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[+][-]12.31.2007 at 07:44PM PST, ID: 20558650

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[+][-]12.31.2007 at 09:44PM PST, ID: 20558814

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Zones: PHP and Databases, PHP Scripting Language, WebApplications
Tags: php, firefox and IE, internal using xamp, mySQL etc
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Solution Provided By: schmavey
Participating Experts: 2
Solution Grade: B
 
 
 
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