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phplastinsertid

php retrieving id of the last record inserted and insert it in another table

I'm trying to retrieve the id of the last record inserted in the table 'authors' and insert the retrieved id in the 'articles' table; here's my code:

$title = mysql_real_escape_string($_POST[title]);
$body = mysql_real_escape_string($_POST[body]);
$category = mysql_real_escape_string($_POST[category]);

$insert_author="INSERT INTO authors (name) VALUES ('$title')";
$select_author= mysql_query("SELECT LAST_INSERT_ID()");

$authId = mysql_fetch_array($select_author);
$query="INSERT INTO articles (body, date, category, auth_id) VALUES ('$body', '$date_now', '$category', '$authId')";

this doesn't work...

Any idea please?

Thanks in Advance

Mauro

Solution

  • You can get the last insert id with mysql_insert_id()

    $insert_author="INSERT INTO authors (name) VALUES ('$title')";
mysql_query($insert_author) or die(mysql_error());

$authId = mysql_insert_id();

$query="INSERT INTO articles (body, date, category, auth_id) VALUES
('$body', '$date_now', '$category', '$authId')";

    Note that you were missing mysql_query function for insert query, i have added that also in code above.