PDO PJHP Query Syntax

Is there a better way to write the following?

What is happening is that a specific user id has been created prior to this function.

This function is to insert multiple values into a table.  Each value has the same user_id.
//  START INSERT INTO XPROFILE
	$xprofile_a = ("INSERT INTO wp_bp_xprofile_data
			 	(field_id, user_id, value, last_updated)
			 	VALUES('27', '$uid', '$cn', NOW())"); 
				
	$xprofile_b = ("INSERT INTO wp_bp_xprofile_data
			 		(field_id, user_id, value, last_updated)
			 		VALUES('29', '$uid', '$pp', NOW())"); 

	$xprofile_c = ("INSERT INTO wp_bp_xprofile_data
			 		(field_id, user_id, value, last_updated)
			 		VALUES('30', '$uid', '$bp', NOW())"); 
			 		
	$xprofile_d = ("INSERT INTO wp_bp_xprofile_data
			 		(field_id, user_id, value, last_updated)
			 		VALUES('31', '$uid', '$ua', NOW())"); 
			 		
	$xprofile_e = ("INSERT INTO wp_bp_xprofile_data
			 		(field_id, user_id, value, last_updated)
			 		VALUES('32', '$uid', '$uaa', NOW())"); 				
				
					
	$pdo_xp_a = $pdo->prepare($xprofile_a, array(PDO::ATTR_CURSOR => PDO::CURSOR_SCROLL));
	$pdo_xp_b = $pdo->prepare($xprofile_b, array(PDO::ATTR_CURSOR => PDO::CURSOR_SCROLL));	
	$pdo_xp_c = $pdo->prepare($xprofile_c, array(PDO::ATTR_CURSOR => PDO::CURSOR_SCROLL));	
	$pdo_xp_d = $pdo->prepare($xprofile_d, array(PDO::ATTR_CURSOR => PDO::CURSOR_SCROLL));	
	$pdo_xp_e = $pdo->prepare($xprofile_e, array(PDO::ATTR_CURSOR => PDO::CURSOR_SCROLL));			

//  START FIRST QUERY TRY GRAB USER ID			
	try {
    	$pdo_xp_a->execute();
		$pdo_xp_b->execute();
		$pdo_xp_c->execute();
		$pdo_xp_d->execute();
		$pdo_xp_e->execute();

		}  //  END TRY			          	
			catch(PDOException $e) {
   			echo 'ERROR: ' . $e->getMessage();
		} 
//  END INSERT INTO XPROFILE

Open in new window



Please let me know if you need more information
LVL 7
rgranlundAsked:
Who is Participating?
 
Chris StanyonCommented:
The idea here is that you only prepare the statement once, using named parameters in place of the data. You then execute the prepared statement and pass in the data. Something along these lines

<?php 
//assuming $dbh is your database connection
$uid = 'some User ID';		
                                  
$insertSQL = "INSERT INTO wp_bp_xprofile_data (field_id, user_id, value, last_updated) VALUES(:fieldID, :uid, :cn, NOW()";
$stmt = $dbh->prepare($insertSQL);

$stmt->execute(
	array(
		'fieldID' => 27,
		'uid' => $uid,
		'cn' => 'Another Value'
	)
);
 
$stmt->execute(
	array(
		'fieldID' => 29,
		'uid' => $uid,
		'cn' => 'Another Value'
	)
);

Open in new window

0
 
Ray PaseurCommented:
Can you please describe the process in plain, non-technical language?  From this code snippet I do not understand what you want to achieve.  Maybe you can help us with some visualization of the data set?

Thanks, ~Ray
0
 
rgranlundAuthor Commented:
Here is the Table Data:
CREATE TABLE `wp_bp_xprofile_data` (
  `id` bigint(20) unsigned NOT NULL auto_increment,
  `field_id` bigint(20) unsigned NOT NULL,
  `user_id` bigint(20) unsigned NOT NULL,
  `value` longtext NOT NULL,
  `last_updated` datetime NOT NULL,
  PRIMARY KEY  (`id`),
  KEY `field_id` (`field_id`),
  KEY `user_id` (`user_id`)
) ENGINE=MyISAM  DEFAULT CHARSET=utf8;

Open in new window


I have 7 fields that I need to insert and they all have the same $user_id
so, instead of running 7 queries is there anyway to combine them into one query since it is only the field_id and the value that changes?
0
Network Scalability - Handle Complex Environments

Monitor your entire network from a single platform. Free 30 Day Trial Now!

 
Ray PaseurCommented:
Yes, a single INSERT query can insert many rows.  Something like this, IIRC

INSERT INTO myTable ( thing ) VALUES ('a'), ('b'), ('c')
0
 
rgranlundAuthor Commented:
@Chris

What does the colon signify? :fieldID, :uid, :cn
0
 
Chris StanyonCommented:
They're called named parameters and indicate that data substitution will occur. When the query is executed, you need to pass in data in place of these named parameters:

$stmt->execute(
      array(
            'fieldID' => 27,
            'uid' => $uid,
            'cn' => 'Another Value'
      )
);

You can call them what you like but the named parameters must match the array keys when you execute.
0
 
Ray PaseurCommented:
A lot of this material is covered in this article if you read it carefully, for understanding.
http://www.experts-exchange.com/Web_Development/Web_Languages-Standards/PHP/PHP_Databases/A_11177-PHP-MySQL-Deprecated-as-of-PHP-5-5-0.html

If you do read it and find anything that is unclear, please let me know, thanks. ~Ray
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.