MySQL inserts a piece of data into the database

The final result is fail.
OrderNo is the order number should be self-increment, but I do not, so I just randomly assigned a value
Session_Start ();
$corn =mysql_connect (' localhost ', ' root ', ');
mysql_query (' Set names UTF8 ', $corn);
if (! $corn) {
Die (' Could not connect: '. Mysql_error ());
}
$db _selected=mysql_select_db ("Daydream", $corn);
if (! $db _selected) {
Die (' can\ ' t use foo: '. mysql_error ());
}
$time =date ("YMD");
Echo $time;
$id =$_get[' id '];
$presult =mysql_query ("select * from production where prono= $id");
$pinfo =mysql_fetch_array ($presult);
$sum =$_post[' pronum ']* $pinfo [' Proprice '];
$num = 12;
$sql = "INSERT into order (orderno,cusno,orderdate,ordersum,orderaddress) VALUES (' $num ', ' $_session[admin] ', ' $time ', ' $sum ', ' $_post[orderaddress] ');
if (!mysql_query ($sql, $corn))
echo "fail";
Else
echo "Success";
?>

Reply to discussion (solution)

You changed echo "fail" to
Echo Mysql_error ();
It's the truth!

OrderNo is self-increasing, which is the primary key
And the primary key is non-repeatable
You give him $num value, it's possible to violate the rules.
Since you've listed the field names when inserting, the Increment field doesn't need to be in it.
$sql = "INSERT into order (cusno,orderdate,ordersum,orderaddress) VALUES (' $_session[admin] ', ' $time ', ' $sum ', ' $_post[ OrderAddress] ";

Because I'm not familiar with auto_increasement, and I didn't set OrderNo as the primary key, but I just changed it as you said. The error is as follows:
Error:you has an error in your SQL syntax; Check the manual-corresponds to your MySQL server version for the right syntax-use-near ' order (Cusno,orderdate,ord ersum,orderaddress) VALUES (' 1 ', ' 20140731 ', ' 94 ', ' 2 ') ' at line 1
It's still my insertion grammar is a problem or something ....

Order plus escape character try it.
$sql = "INSERT into ' order ' (cusno,orderdate,ordersum,orderaddress) VALUES (' $_session[admin] ', ' $time ', ' $sum ', ' $_post [OrderAddress] ') ";

It's no use adding an escape character.

What's wrong with also reported now? The Show create table order is also posted; Look.

Error or the top one:
Error:you has an error in your SQL syntax; Check the manual-corresponds to your MySQL server version for the right syntax-use-near ' order (Cusno,orderdate,ord ersum,orderaddress) VALUES (' 2 ', ' 20140731 ', ' 94 ', ' 111 ' in line 1
There's a grammatical error.
My data sheet is like this (this is an order form used to generate order records when purchasing)

OrderNo should be set to auto number and primary key

$sql = "INSERT into order (cusno,orderdate,ordersum,orderaddress) VALUES (' $_session[admin] ', ' $time ', ' $sum ', ' $_post[ OrderAddress] ";
Echo $sql;
Post the results and see

Now, how do you write your $sql? Stick it out and look. is not copying my # # code.

The result is:
INSERT into order (cusno,orderdate,ordersum,orderaddress) VALUES (' 2 ', ' 20140731 ', ' 94 ', ' 1111 ')
Error:you has an error in your SQL syntax; Check the manual-corresponds to your MySQL server version for the right syntax-use-near ' order (Cusno,orderdate,ord ersum,orderaddress) VALUES (' 2 ', ' 20140731 ', ' 94 ', ' 1111 ' at line 1
My code: Just like # #
$sql = "INSERT into order (cusno,orderdate,ordersum,orderaddress) VALUES (' $_session[admin] ', ' $time ', ' $sum ', ' $_post[ OrderAddress] ";
Echo $sql;
Echo
";
if (!mysql_query ($sql, $corn))
Die (' Error: '. mysql_error ());
Else
echo "Success";
?>

ORDERFNO has been set as the primary key and has since increased

' Order ' note the front and back escape characters.

Change to this:
$sql = "INSERT into ' order ' (cusno,orderdate,ordersum,orderaddress) VALUES (' $_session[admin] ', ' $time ', ' $sum ', ' $_post [OrderAddress] ') ";
Echo $sql;
Yes, the error message has changed:
INSERT into ' order ' (cusno,orderdate,ordersum,orderaddress) VALUES (' 2 ', ' 20140731 ', ' 94 ', ' 1111 ')
Error:you has an error in your SQL syntax; Check the manual-corresponds to your MySQL server version for the right syntax-use-near ' order ' (Cusno,orderdate, ordersum,orderaddress) VALUES (' 2 ', ' 20140731 ', ' 94 ', ' 1 ' at line 1

Because I'm making a simple shopping site,
Registration means that the user table can add information,
To buy here dead and alive added to die for a few days I think the general principle is the same but none of the success
Please help me, thank you.

Is it so hard for you to copy my code?

' Is the character above the TAB key, not the single quotation mark.

It worked
Thanks, brother!!!!!!!!!!!! upstairs. I really thought it was a single quote.

