PHP - Php - Web Forms Handling

This doesn't work. Based off what I have seen online, it is suppose to.

Basically, this is what I tried, and the quote is what was returned. I have no idea how to get this to work. It should have been pretty standard
based off of the PHP documentation. The Xpath idea I got from someone else. Either way if I try to use find element by id or tag name it still
returns an empty array, no matter what.

Any advice on what I am doing wrong is appreciated. It doesn't matter what URL I try, none of them seem to work.
Code: [Select]
<?php
$school_data = file_get_contents('http://www.infotechnologist.biz');
$doc = new DOMDocument();
$doc->validateOnParse = true;
$doc->loadHTML($school_data);
$xpath = new DOMXPath($doc);
$tags = $xpath->query('div');
echo '<pre>';
print_r($tags);
echo '</pre>';
?>
Quote

DOMNodeList Object
(
)

I'm trying to develop a website file manager. I want to allow SSI, and would like to handle it specifically..

Code: [Select]
$regexp = "<!--#include\s[^>]*virtual=(\"??)([^\" >]*?)\\1[^>]*\/-->";
if(preg_match_all("/$regexp/siU", $body, $matches, PREG_SET_ORDER)) {
 foreach($matches as $match) {
 $includeFile = $match[2];
} }

This snippet shows how you would get the included file path in the SSI code of the website body [ the $body tag ], but I don't need to just find it- I want to replace the SSI code with a simpler code in the HTML that appears in the editor for easy management.. Then switch back from my easier code to the actual SSI code..

Example:

Replace
Code: [Select]
<!--#include virtual="/newsManager/output.php"-->
With
Code: [Select]
{INCLUDE=/newsManager/output.php}
THEN when the user saves the page,

Replace
Code: [Select]
{INCLUDE=/newsManager/output.php}
With
Code: [Select]
<!--#include virtual="/newsManager/output.php"-->

Is there an easy fix or should I just switch to a full blown template engine.. even though this is the only required feature?

Hi
I'm completely new to error handling in PHP and wanted to ask whether I'm doing it right and, if not, what the right way would look like

class DBConnection {

public function execute($sql) {

$query = @pg_query($this->dbconn, $this->prepare($sql));

try {

if (!$query) {

throw new DBException();

}

} catch (DBException $e) {

echo "Query execution failed";

exit;

}

}
}

Hi,

I'm a beginner in PHP OOP and I'm with some doubts about the correct way of handling errors in PHP.

Look at this function for example:


public function deleteFileFromDisk($fileNameToBeDeleted) {

    $handle = unlink($fileNameToBeDeleted);

    if (!$handle) {
        $result = "(this->deleteFileFromDisk) - Error, " . $fileNameToBeDeleted . " not deleted.";
    } else {
        $result = "(this->deleteFileFromDisk) - Success, " . $fileNameToBeDeleted . " deleted.";
    }
    return $result;
}


Is this the correct way of doing it, or I can do better than this?

Let me add some details of what I'm achieving...

I'm running class methods, and I need to control errors in the process. If any call to the object throw an error I need to catch, stop all the process and send an e-mail with the error.

Here are the object interactions:


$testar_classe = new geoIpImportCSV('geolitecity', 'http://geolite.maxmind.com/download/geoip/database/GeoLiteCity_CSV/');
$testar_classe->downloadAndSaveFile('./', $testar_classe->obtainDownloadFileName());
$testar_classe->uncompressZipFile($testar_classe->obtainDownloadFileName(), '.');
$testar_classe->deleteLine(1, 'GeoLiteCity-Location.csv');               
$testar_classe->deleteLine(1, 'GeoLiteCity-Blocks.csv');
$testar_classe->deleteDataFromTable('tabela1');
$testar_classe->deleteDataFromTable('tabela2');
$testar_classe->insertLinesToDb('GeoLiteCity-Location.csv', 'tabela1');
$testar_classe->insertLinesToDb('GeoLiteCity-Blocks.csv', 'tabela2');
$testar_classe->deleteFileFromDisk($testar_classe->obtainDownloadFileName());
$testar_classe->deleteFileFromDisk('GeoLiteCity-Blocks.csv');
$testar_classe->deleteFileFromDisk('GeoLiteCity-Location.csv'); 


Which is the best way of handle this? Create a new method to take care of the exceptions? There are any examples on how to do this?

Best Regards.

Hello,
Am writing a script that involves user input.
Take an example: a user fills in a wrong username or password at the page login.php, my login processor (processor.php) detects it, how is the error "WRONG USERNAME OR PASSWORD" supposed to be transferred back to login.php.
So far I have been using a session variable to transfer the error but am sure there is a better way to do this without displaying the error on processor.php itself.

Thanx in advance

I have set an SQL field as unique so that duplicates can't be entered, however rather then having the page error out and show the Error: Duplicate entry 'entry' for key 'field' I would like to be able to have a little div appear and say something like "this entry already exists" I already have it set to show that the item has been added but I have no idea were to start to make this work.

Any ideas?

Thanks,
Jim

A form needs to get answers of math quiz, returning numbers, up to 2 digits after the point.
In all form examples I noticed the usage of:  Code: [Select]
...<input type="text" name="name" /...
Cant it be a number? floating or integer? why "text" ?

Also, can I limit the form to accept numerical input only or would I need to learn Ajax for that?

Once I have the answer, I need to compare it to the correct answer. The method I have in mind is to multiply the answer and the correct one by 100 and compare the integer part. Is there a pre-made function that can do the same?

Whats the best way to handle database errors.

I been using ob_start() stuff to run the code and if a database connection error occurs an variable $error turns to 1 and it displays the error code instead of the normal page that should be displayed when no errors occur.

It works but I want to know if there is any better way to manage a db connection error while running a script.

Also, how do you manage a problem when like 3 queries are ran to setup a new user account and the last one fails because the db connection drops or something, how would you go about handling a 2/3 query successful?

I'm really stuck on how to manage errors if a db connection fails after the first connection is successful.

I have a prepared statement that returns an Article from my database.  It then binds the results-set to variables.

Most of the fields in the query are "required", so I *assume* that I am guaranteed to always get values back for those fields...

Is that presumptuous?

Here is a snippet of my code...

// Execute query.
mysqli_stmt_execute($stmt);

// Store results.
mysqli_stmt_store_result($stmt);

// Check # of Records Returned.
if (mysqli_stmt_num_rows($stmt)==1){
// Article was Found.
$articleExists = TRUE;

// Bind result-set to variables.
mysqli_stmt_bind_result($stmt, $articleID, $title, $description, $keywords, 
$heading, $subHeading, $publishedOn, $author,
$body, $referenceListing, $endnoteListing);

// Fetch record.
mysqli_stmt_fetch($stmt);

// Close prepared statement.
mysqli_stmt_close($stmt); // ????



Is it sufficient to have code like this...

Code: [Select]
<title><?php echo $title; ?></title>
...or do I need more error-handling??

Hope that makes sense?!

Thanks,


Debbie

I am inserting last names into the database using mysql_real_escape_string(), and outputting the data into a textbox using addslashes().

When I try to display O'Brian "O\" is displayed in the text box.

The name is saved corretly as O'Brian in the database.

I am printing the string like this:

Code: [Select]
echo "<input type='text' value='" . addslashes($customer['lName']) . "' blah blah...";

anybody have any ideas?

 I have an application that loads several xml files, and then outputs some of the data from the file.  The problem is that every once in a while, the service that provides the xml file does maintenance (or has an error in the file), and my application gives a "Fatal error:  Call to a member function children() on a non-object in..."   I would like to handle the error differently, by displaying "unavailable" instead of the error.  I know that this is usually not the appropriate way of handling errors, because there is a reason for a fatal error.   Any ideas on how to appropriately handle this error?

// Node 217 (GGB)
$xml = simplexml_load_file("http://services.my511.org/traffic/API_KEY_REMOVED_FOR_EXAMPLE");
foreach($xml->children() as $traveltime)
{
    $ggb = "$traveltime->currentTravelTime";
    } 

​echo "GGB:" , $ggb , " Minutes";

Ok, so I am kind of just looking for some experience on this one. I am building a billing / referral system that works on a hierarchy. Now the hierarchy is simple and straight forward. However, I am trying to figure out the easiest / least error prone way of handling the payments.

I have an IPN with paypal set up and working successfully. Here is how the system works:

User signs up and refers several users. Each user pays $8 a month (paypal subscription). The system pays $1 7 levels deep. So The payment scheme would look like this:
User 8 pays $1 to User 7, 6, 5, 4, 3, 2, and user 1. Then, the site keeps the remaining $1.

I have the Paypal IPN saving the $8 payment transaction to the database. Now I need to divy it up, but I am split on when the best time to do this would be and how. There is a possibility that the user could pay a different amount less than or more than the $8 and they also pay a setup fee which should not be divided. It should only divide the shares when the current account is paid in full.

Another thing to keep in mind, is that the $8 subscription, 7 levels deep, and the setup fee are variable numbers. (The admin may change it at any time.)

I see multiple solutions, but not sure which would be best as all have possibility for errors in handling.

Any advice would be helpful.

Thanks,
Tom

Hi, i am php programmer , i need help from php expert to create php apllication for large database .
I have database table called "profiles" which contains millions(1.5 to 2 million) of profile of the business companies. This table has 10 fields and there is one field named as "bname" which is name of company , i made this column full-text index for full-text search .

Now , i have to use this table for profile searching (using full-text search), profiles within particular cities , profiles within particular categories etc. This table contains millions of records so it will take lots of time for searching and fetching the reocrd(s) from this table.
Can anybody help me that how can i manage this large table to improve the performance and fast searching with php ? Is there any other technique (algorithm) to manage large database (like facebook,twiiter,orkut)?

I could use some advice on how to capture and display my Users' Addresses.

On my website, I display the User's...

- Username
- Photo
- Location

...next to each Comment they post.


Right now, I just have an *optional* field on my "Registration" form and "Update Details" form which ask for "Location".

The problem, of course, is that that data isn't very useful beyond displaying it?!

But at the same time, how do I capture Addresses from around the globe?!

If all of my Users were in America, I would just do...

- City
- State
- Zip

...but what do I do if someone is from Stuttgart, Germany?!

My fear is a multinational Registration Form like this would scare people away...
Quote

(For Registrants in the U.S...)
- City
- State
- Zip

(For Registrants outside the U.S...)
- City
- State/Province/Region
- Postal Code
- Country


And how would I handle the "Country" field?  If I use a dropdown - which is usually recommended - then I'd have to maintain a very long and dynamic list, plus Users would have to scroll down through a list of a few hundred countries which my come across as *obnoxious*?!


(I'm just trying to entice people to create a User Account, so I don't want to make it difficult!!)

What is the best way to approach this?

Thanks,


Debbie

I'm using xampp on windows vista
I am a beginner in php and am working on creating a file hosting website
got a form to upload the file from the client in uploadform.php
Code: [Select]
<html>
<body>
<form method="post" action="uploadfile.php" enctype="multipart/form-data">
<input type="file" name="usr" id="usr"/><br />
<input type="submit" value="Upload"/>
</form>
</body>
</html>

the file handling code is in uploadfile.php
Code: [Select]
<?php
class upload
{ 
    
    function fupload()
    {
        $dir = "C:\\xampp\htdocs\learning\fileshare database.txt";
        
        echo "My name is: ".$_FILES['usr']['name']."<br/>";
        echo "Location ".$_FILES['usr']['tmp_name']."<br/>";
        echo "Size:".($_FILES['usr']['size'] / 1024)." kb <br/>";
        echo "File type".$_FILES['usr']['type']."<br/>";
        
        if(file_exists("htdocs/".$_FILES['usr']['name']))
        {
            echo $_FILES['usr']['name']."already exists";
        }
        else
        {
            copy($_FILES['usr']['name'],$dir);
            echo "File moved";
        }
        
        
        
    }
    
}

$up = new upload();
$up->fupload();
?>


The problem is that it does not copy the file from the tmp directory to the specified one
the error i get is:
Warning: copy(fileshare databse.txt) [function.copy]: failed to open stream: No such file or directory in C:\xampp\htdocs\learning\uploadfile.php on line 20

I am facing the same problem if i try move_uploaded_file () function
Could any one help with this issue, thanks