I'm working on a grading system, and I have many tables with the prefix rubrics_. Each table has skills for different categories of grading.
I have a form being looped, which displays all skills that have been created for this particular assessment document. The input fields are populated with whatever information they entered when creating the "rubric. (hence the value $row2['skill']). I named the field evidence_[unique id] to try and identify each skill value.
$sql2 = "select * from rubrics_evidence where rubricid = '$id'";
$result2 = mysql_query($sql2) or die (mysql_error());
while($row2=mysql_fetch_array($result2)) {
echo "<tr><td><input type='text' value='".$row2['skill']."' name='evidence_".$row2['id']."' size='100' /></td></tr>";
}
My objective is to make it so these skills are edited when a new value is entered (appending the existing value). However, by naming each skill with something like evidence_[id], I'm not sure how to take that data and process it.
What I mean by that is, I can't figure out how to reprocess these input fields once they are submitted. I can't tell the script to look for evidence_id because each id is unique.
Anyone know how to accomplish this? I'd greatly appreciate it.
Thanks!
You can obtain the field names in your processing code the same way you created them
//make sure you include the $id from that form somewhere in the form again
$sql = "SELECT id FROM rubrics_evidence WHERE rubricid = " . $_POST['id'];
$result = mysql_query($sql);
while ($row = mysql_fetch_array($result)) {
$value = $_POST['evidence_' . $row['id']];
//do something with the new value
}
Related
I have a HTML form that retrieves a varying number product types that the user inputs stock figures. This data then needs to be INSERTED to a new table.
Here is the PHP query that populates the form.
require_once 'config.php';
$i = 1;
$sql = "SELECT * FROM dealer_product WHERE customer_code='$custcode' ORDER BY prod_code";
$result = mysql_query($sql);
while ($row = mysql_fetch_array($result)) {
$prodcode = $row['prod_code'];
echo "<tr><td><input type='text' name='prod".($i++)."' value='" . $prodcode . "'/></td><td><input type='number' name='openstock".($i++)."'/></td><td><input type='number' name='sold".($i++)."'/></td></tr>";
}
mysql_close($con);
?>
I know how to INSERT a set number of multiple records, but how do I INSERT a varying number of records?
Thanks in advance. Sorry for my basic knowledge, I'm a network admin not PHP MYSQL.
Name your input fields as if they were arrays, e.g.:
<input name="prods[0]" />
You can then output a variable number of inputs in your HTML, even add more with JavaScript. PHP will convert the input to an array over which you can iterate:
<?php
foreach ($_POST['prods'] as $prod) {
/* Process $prod */
}
?>
I recommend that you go in the same way but using
while ($row = mysql_fetch_assoc($result))
And now you have not numbers as index that is more complicated way to see things, better see associative way that's the column name from your table in mysql.
And you're doing a lot of increments there doing $i++ a lot of times. I don't know if you're doing that intentionally but if not just increment $i once.
Also the number of row can be reached using this:
if (mysql_num_rows($result) == 0) {
echo "No rows found, nothing to print so am exiting";
exit;
}
Look inside the manual
http://us1.php.net/mysql_fetch_assoc
I run a script to create an order form, this is just a really small sample. I'm not so good with PHP and dynamic forms. It pulls data from mysql database.
<td>
<h3>Round Cuts</h3>
<?php while($row = mysql_fetch_array($round_cuts)){
$round_box_value = #$row["meat_names"];
$round_box_value_name = #$row["meat_names"];
echo " <input type=\"checkbox\" name=\"round_box_value\" value=\"$round_box_value_name\"> $round_box_value_name";
echo "<br>";
}?>
</td>
I've ever really only built basic contact forms, how could I process a dynamic form like this. If all else fails I would just take all the possible elements and program this like it was a not dynamic. There must be a better way though.
Even a link to a website would be helpful. I've been searching for a solution. Thanks.
I'll assume your table as a primary key of id
Start off with a minor change to your checkboxes:
<?php
while($row = mysql_fetch_array($round_cuts)){
echo sprintf('<label><input type="checkbox" name="round_box_value[]" value="%s"> %s</label><br>', $row['id'], $row['meat_names']);
}
?>
The name now has an [] at the end to tell php it's an array of values + I've wrapped the checkbox in a label for convenience.
Then when you process the form, you can simply iterate through round_box_value like so
<?php
foreach ($_POST['round_box_value'] as $id) {
// $id is the table reference from your previous table
}
// or query all the rows selected
$ids = array_map('intval', $_POST['round_box_value']); // "basic" sql injection handler
$sql = "SELECT * FROM table WHERE id IN (".implode(",", $ids).")";
should produce something like:
SELECT * FROM table WHERE id IN (2,5,7)
I'm trying out my hand at php at the moment - I'm very new to it!
I was wondering how you would go about selecting all items from a mySQL table (Using a SELECT * FROM .... query) to put all data into an array but then not displaying the data in a table form. Instead, using the extracted data in different areas of a web page.
For example:
I would like the name, DOB and favorite fruit to appear in one area where there is already say 'SAINSBURYS' section hardcoded into the page. Then further down the next row that is applicable to 'ASDA' to appear below that.
I searched both here and google and cant seem to find an answer to my strange questions! Would this involve running the query multiple times filtering out the sainsburies data and the asda data where ever I wanted to place the relevant
echo $row['name']." ";
echo $row['DOB']." "; etc etc
next to where it should go?
I have got php to include data into an array (I think?!)
$query = "SELECT * FROM people";
$result = mysql_query($query) or die(mysql_error());
$row = mysql_fetch_array($result) or die(mysql_error());
while($row = mysql_fetch_assoc($result))
{
echo $row['name']." ";
echo $row['DOB']." ";
echo $row['Fruit']." ";
}
?>
Just place this (or whatever your trying to display):
echo $row['name']." ";
Anywhere you want the info to appear. You can place it within HTML if you want, just open new php tags.
<h1>This is a the name <?php echo $row['name']." ";?></h1>
If you want to access your data later outside the while-loop, you have to store it elsewhere.
You could for example create a class + array and store the data in there.
class User {
public $name, $DOB, $Fruit;
}
$users = new array();
$query = "SELECT * FROM people";
$result = mysql_query($query) or die(mysql_error());
while($row = mysql_fetch_array($result)) {
$user = new User;
$user->name = $row["name"];
$user->DOB = $row["DOB"];
$user->Fruit = $row["Fruit"];
$users[$row["name"]] = $user;
}
Now you can access the user-data this way:
$users["USERNAME"]->name
$users["USERNAME"]->DOB
$users["USERNAME"]->Fruit
I'm continuing to hack away at my newbie php/mySQL 'Invoicer' app.
I now have a form page in which I want to run one of two queries - either an INSERT or an UPDATE, depending on whether an ID is present. When present,
the ID is used to retrieve the record and pre-populate the form accordingly, which I have working. My problem now is that my conditional bits are
obviously not right because in either case when submitting the form the INSERT query is run, can't get the UPDATE to run, and I've exhausted my
understanding (and guess-ology).
I'd love to know why this ain't working, even if it's not the best approach, and I'm definitely open to suggestions to move the queries to a process.php,
etc. I'm also wondering if I should use 'if(isset($_GET['ID'])' to simply include one block or the other.
Many thanks in advance for any help or suggestions. (p.s. my intention is to overhaul for best practices/security once I've got the broad strokes wired up)
cheers, s
<?php
// CASE I: 'EDIT RECORD':
// If there's an ID ...
if (isset($_GET['ID']) && is_numeric($_GET['ID'])) {
$id = $_GET['ID'];
echo "<p class=\"status\"><strong>ID IS SET ... ergo we're editing/UPDATING an existing record</strong></p>";
// ... retrieve the record ....
$query = sprintf("SELECT * FROM Invoices WHERE ID = %s", $id);
$result = mysql_query($query) or die(mysql_error());
$row = mysql_fetch_array($result);
// ... assign variables to pre-populate the form
$id = $row['ID'];
$invNumber = $row['invNumber'];
$invDate = $row['invDate'];
// [ snip: more variables > field data ]
// on submit: get the form values ...
// no worky: if (isset($_GET['ID']) && isset($_POST['submit'])) {
if (isset($_POST['submit'])) {
$invNumber = $_POST['invoice-number'];
$invDate = $_POST['invoice-date'];
$projNumber = $_POST['project-number'];
// [ snip: more variables > field data ]
// ... and UPDATE the db:
$qUpdate = "UPDATE Invoices SET invNumber='$invNumber', invDate='$invDate', projNumber='$projNumber', client='$client', task='$task', issueDate='$issueDate', subTotal='$subTotal', tax='$tax', invTotal='$invTotal', datePaid1='$datePaid1', datePaid2='$datePaid2', comments='$comments' WHERE ID='3'";
$result = mysql_query($qUpdate) or die(mysql_error());
if($result) {
echo "<p class=\"status\"><strong>SUCCESS: RECORD UPDATED!</strong></p>";
}
else die("DAMMIT JIM I'M A DOCTOR NOT A DB ADMIN!" . mysql_error());
} // CLOSE '(isset($_POST['submit']))
} // END CASE I: ID present
// CASE II: 'NEW RECORD'; query = INSERT
elseif (empty($_GET['ID'])) {
echo "<p class=\"status\"><strong>No ID ... ergo we're INSERTING a new record:</strong></p>";
// on submit: get the form values ...
if (isset($_POST['submit'])) {
$invNumber = $_POST['invoice-number'];
$invDate = $_POST['invoice-date'];
$projNumber = $_POST['project-number'];
// [ snip: more variables > field data ]
$qInsert = "INSERT INTO Invoices (invNumber,invDate,projNumber,client,task,issueDate,subTotal,tax,invTotal,datePaid1,datePaid2,comments)
VALUES('$invNumber','$invDate','$projNumber','$client','$task','$issueDate','$subTotal','$tax','$invTotal','$datePaid1','$datePaid2','$comments')";
$result = mysql_query($qInsert) or die(mysql_error());
if($result) {
echo "<p class=\"status\"><strong>SUCCESS: NEW RECORD INSERTED!</strong></p>";
}
else die("DAMMIT JIM I'M A DOCTOR NOT A DB ADMIN!" . mysql_error());
} // CLOSE '(isset($_POST['submit']))
} // END CASE II: No ID present
?>
and:
<form id="invoiceData" method="post" action="/html/form.php">
When you submit the form, you need to include the ID again, otherwise it is silently dropped off since you are posting to the hard-coded value /html/form.php (with ID removed). This will cause the empty($_GET['ID']) part to match and run, causing the INSERT. You can simply include the ID value back into the action of every form post like this:
<form
id="invoiceData"
method="post"
action="/html/form.php?ID=<?php echo $_GET['ID']; ?>"
>
This should work in both the cases of the UPDATE and the INSERT, because if there was no ID to begin with, this will render as /html/form.php?ID=, which will match the case of ID being empty, I believe. You may want to test this logic out for sure.
Hope this helps!
$_GET[ID] will be set if you pass it as a URL parameter. So if you change your <form> action to
<form id="invoiceData" method="post" action="/html/form.php?ID=12">
Where 12 is whatever ID you want, you should be getting the results you're wanting -- as long as you do have a <input type="hidden" name="submit" value="1" /> (value can be whatever) in your form somewhere as well.
Need a little help...
I have a basic html table with text field form in last column and a hidden field on each row of the web table. The data in this table is extracted out of a table in the database.
I want my users to be able to update one field in the database (a score) using this web form (page).
I have a hidden web form component on each row that contains the unique id of the record in the database for each row in the web page table.
I was attempting to create code that would update the entire list of entries on the web form, even if the user is not updating that particular field. (The values of the scores field are populated into the web form at the creation of the table. So if you did not update any scores, but hit the submit button, it would update the database table with the same values.)
Here’s my code: (abbreviated to save bytes…)
<?php
//Do all the database connection stuff up front
if (isset($_POST[‘score’]))
{
$student_id = $_POST[‘student_id’];
$score = $_POST['score'];
$n = count($score);
$i = 0;
echo "You have updated these student scores on this assignment. \r\n" .
"<ol>";
while ($i < $n)
{
echo "<hr><P>{$score[$i]} \r\n";
echo "<hr><P>{$student_id[$i]} \r\n";
$qry = "UPDATE assignments SET score = ".$score[$i]." WHERE student_id = " .$student_id[$i]. '"';
$result=#mysql_query($qry);
$i++;
}
}
if($result) {
header("location: member-index.php");
exit();
}else {
die("Query failed");
}
?>
Am I on the right track? Is there a better way to do what I’m attempting? All suggestions and ideas welcome!
Thank you in advance!
i'm guessing you are using
<input name="scores[]"/>
why not echo the unique id into the input name?
<input name="score[<?php echo $unique_id ?>]" />
this means in the loop, the $i would be the unique id (one less variable and less HTML).
and please use mysql_real_escape_string() when working with DB transactions. I know it's an example code but please don't forget that
Besides that, yes, you are on the right track