verifying and inserting details into db - php

Question

I need to insert the details (name, id , number )of many documents into database if they are not already existing and if they exist i just need to do a update for any changed information. I have arrived at the following code but it doesn't work. I am new to this and need help on this.
foreach($A->Documents -> Document as $Document)
{
$query = "SELECT * from table where id = '".$Document->id."'";
$outcome = mysql_query($query) or die(mysql_error());
if(($outcome)&&(mysql_num_rows($result)>0)){
echo "Document already available" ;
while($row = mysql_fetch_object($outcome)){
if(!($outcome->name == $document->name)){
$update= "UPDATE table SET name= '.$Document->Name.'";
mysql_query($update) or die(mysql_error());
}
else
{
$insert= "INSERT table SET name= '.$Document->Name.'";
mysql_query($update) or die(mysql_error());
}
}
}
}

Answer 1

Use $row->name instead of $outcome->name. and your INSERT statement is wrong.
while($row = mysql_fetch_object($outcome)){
if(!($row->name == $document->name)){
$update = "UPDATE table SET name ='".$Document->Name."' WHERE id = ".$Document->id;
mysql_query($update) or die(mysql_error());
}
else {
$insert = "INSERT INTO table (name) VALUES('".$Document->Name."')";
mysql_query($insert) or die(mysql_error()); // $insert not $update
}
}
Note: Stop using mysql_* functions! Use PDO or mysqli_* instead. And use prepared statements

Answer 2

Change the
mysql_query($update) or die(mysql_error());
To:
$insert = INSERT into table_name values(" values");
mysql_query($insert) or die(mysql_error());
in the else condition

Answer 3

Issue is with $result variable with in if statement
( if(($outcome)&&(mysql_num_rows($result)>0)){)
It should be $outcome because you initialized query output to $outcome variable

Answer 4

First of, dont yse mysql_ functions. Read the docs (read the warning).
use mysqli or PDO instead.
Then, your INSERT statement is wrong.
INSERT INTO table (col1) VALUES (value_for_col1);