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PHP

PHP Application Development With ADODB (part 1)
By: icarus, (c) Melonfire
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    2002-07-24


    Table of Contents:
  • PHP Application Development With ADODB (part 1)
  • A Little Insulation
  • The Bookworm Turns
  • Anatomy Class
  • Different Strokes
  • Getting It All
  • Playing The Field
  • Strange Relationships
  • Hitting The Limit
  • Coming Soon, To A Screen Near You

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    PHP Application Development With ADODB (part 1) - Different Strokes
    ( Page 5 of 10 )

    ADODB also offers a number of alternative methods to process a resultset. For example, you can retrieve the resultset as a string-indexed associative array, where the keys are field names and the values are the corresponding field values. Consider the following example, which demonstrates:

    <?php // uncomment this to see plaintext output in your browser // header("Content-Type: text/plain"); // include the ADODB library include("adodb.inc.php"); // create an object instance // configure library for a MySQL connection $db = NewADOConnection("mysql"); // open connection to database $db->Connect("localhost", "john", "doe", "db278") or die("Unable to connect!"); // get resultset as associative array $ADODB_FETCH_MODE = ADODB_FETCH_ASSOC; // execute query $query = "SELECT * FROM library"; $result = $db->Execute($query) or die("Error in query: $query. " . $db->ErrorMsg()); // iterate through resultset // print column data in format TITLE - AUTHOR while (!$result->EOF) { echo $result->fields['title'] . " - " . $result->fields['author'] . "\n"; $result->MoveNext(); } // get and print number of rows in resultset echo "\n[" . $result->RecordCount() . " rows returned]\n"; // close database connection $db->Close(); ?>
    In this case, the value of the special $ADODB_FETCH_MODE variable tells ADODB how the resultset should be structured.

    You can also fetch each row as an object, whose properties correspond to the field names, via ADODB's FetchNextObject() method.

    <?php // uncomment this to see plaintext output in your browser // header("Content-Type: text/plain"); // include the ADODB library include("adodb.inc.php"); // create an object instance // configure library for a MySQL connection $db = NewADOConnection("mysql"); // open connection to database $db->Connect("localhost", "john", "doe", "db278") or die("Unable to connect!"); // execute query $query = "SELECT * FROM library"; $result = $db->Execute($query) or die("Error in query: $query. " . $db->ErrorMsg()); // iterate through resultset // print column data in format TITLE - AUTHOR while ($row = $result->FetchNextObject()) { echo $row->TITLE . " - " . $row->AUTHOR . "\n"; } // get and print number of rows in resultset echo "\n[" . $result->RecordCount() . " rows returned]\n"; // close database connection $db->Close(); ?>
    Note that this FetchNextObject() method automatically moves to the next row in the resultset, and does not require an explicit call to MoveNext(). Once the end of the resultset is reached, the method returns false.

     
     
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