can't connect to mysql

[dragon52]

Hi,

I am writing a login page but the php code to authenticate user is not working.

My login web page calls 'action="xLoginCheck.php"'. Below is the php code. I am writing to a log file to trace program flow.
I know it is ok up to the "hoho" bit. This code(version1) works.

<?php
$host="localhost"; // Host name 
$username="****"; // Mysql username 
$password="****"; // Mysql password 
$db_name="accounts"; // Database name 
$tbl_name="userstbl"; // Table name 
 
$FileName = "log.txt";
$FileHandle = fopen($FileName,'w') or die("can't open file");
fwrite($FileHandle, "hoho\n");
fclose($FileHandle);
?>
 

This code(version2) doesn't work, ie when I add the mysql_connect bit. Nothing inside the mysql_connect {} appear on the screen or the log file. I just get error page that says "website cannot display page"

<?php
$host="localhost"; // Host name 
$username="****"; // Mysql username 
$password="****"; // Mysql password 
$db_name="accounts"; // Database name 
$tbl_name="userstbl"; // Table name 
 
$FileName = "log.txt";
$FileHandle = fopen($FileName,'w') or die("can't open file");
fwrite($FileHandle, "hoho\n");
 
if (!$connection = mysql_connect($host, $username, $password))
{
  $message = mysql_error();
  fwrite($FileHandle, $message);
  fclose($FileHandle);
  die();
}
 
?>
 

Can anyone see where the problem is?? What is the best way to trace php code???

thanks

[TheServant]

Firstly, you should probably **** out your password as good practice for public forums.

It might be legal, but your if condition on line 12 looks a bit sus. Humour me and try:

$connection = mysql_connect($host, $username, $password);
if (! $connection) { 
  $message = mysql_error(); 
  fwrite($FileHandle, $message); 
}
fclose($FileHandle);

Also, you were only closing the file if it failed to connect.

[dragon52]

thanks for your reply !!

I will replace user. Tried your suggestion but all I get in the log is "hoho 22". I have added an else line.

I am sure mysql server is working because I can login using the administrator tool.

I have just installed Apache, MySQL and PHP. Could it be it can't find the mysql db?? Where do i check??

<?php
$host="localhost"; // Host name 
$username="****"; // Mysql username 
$password="****"; // Mysql password 
$db_name="accounts"; // Database name 
$tbl_name="userstbl"; // Table name 
 
$FileName = "log.txt";
$FileHandle = fopen($FileName,'w') or die("can't open file");
fwrite($FileHandle, "hoho 22\n");
 
$connection = mysql_connect($host, $username, $password);
if (!$connection)
{
  $message = mysql_error();
  fwrite($FileHandle, $message);
}
else
{
  fwrite($FileHandle, "ok");
}
 
fclose($FileHandle);
?>
 

[TheServant]

Try run a script like this:

<?php
$link = mysql_connect('localhost', 'mysql_user', 'mysql_password');
if (!$link) {
    die('Could not connect: ' . mysql_error());
}
echo 'Connected successfully';
mysql_close($link);
?>

What (if any) output do you get?

[dragon52]

Tried your suggestion and I am getting Server Error. See attached.

Which server is in error??

The Apache server? When I "http://localhost/index.php" I get the right stuff on the screen.

The MySQL server? I can login using the mysql administrator tool.

Is there another server I don't know about?

thanks

[Dormilich]

does the same happen in Firefox, Safari, Chrome or Opera?

[dragon52]

I have installed Apache, MySQL and PHP on my own PC a few days ago. I have done this so I can learn PHP and web development. This is the first time I am accessing MySQL using PHP since the install. Everything happens on my PC only. I use Internet Explorer (Windows 7) and I don't use these other web browsers.

I have been surfing for an answer and several people suggest, in php.ini, uncommenting

;extension=php_mysql.dll

but my php.ini file only has

;extension=msql.dll

Is this a problem? If I go ahead and uncomment this line it is worse.

I cannot find 'php_mysql.ddl' or 'msql.dll' on my computer. But then I am new to Windows 7 and I am not sure how to search for a file properly

I have a feeling PHP doesn't know where to find MySQL. What to do???

[johny10151981]

your server giving 500 error. Its server internal error. make sure your server is working properly