Help Optimizing code

Posted on 16th Feb 2014 07:03 pm by admin

Good Morning,

I wrote a small import function for a website of mine and I know there has to be a better way to handle what I'm doing. I'm hoping someone can take my code and make it run a hair faster as it seems to be pretty slow right now. Think anyone can speed this up? What am I doing wrong? or am I doing it right?

The below function takes a file(csv) reads the content and imports it into the database, how can I optimize this to run faster and cleaner?
Code: function importFile($user_id, $file, $file_id)
{
if(!file_exists($file))
{
return false;
}

$handle = fopen($file, "rb");
$contents = '';
while (!feof($handle)) {
$contents .= fread($handle, 8192);
}
fclose($handle);

if(empty($contents))
{
return false;
}

// grab the items
$items = explode("n", $contents);

// if there are items import them.
if(is_array($items))
{
foreach($items as $key=>$val)
{
$save_val = $val;
$val = explode(",", trim($val));
if(!is_array($val) || sizeOf($val)<=1)
{
$val = explode("t", trim($save_val));
if(!is_array($val))
{
return false;
}
}

// part number
// alt part number
// condition
// qty
// description

foreach($val as $inner_key=>$inner_val)
{
$inner_val = str_replace("r", "", $inner_val);
$val[$inner_key] = str_replace(""", "", $val[$inner_key]);
$val[$inner_key] = trim(mysql_real_escape_string($val[$inner_key]));
}

if(!empty($val[0]) && strtolower($val[0]) != "part number")
{

$val[0] = $this->fixPartNumber($val[0]);
$val[1] = $this->fixPartNumber($val[1]);
// check to see if we need to insert or update
$select_sql = "SELECT inventory_id FROM ".TABLE_PREFIX."inventory WHERE inventory_part_number='{$val[0]}' AND user_id={$user_id}";
$result = $this->db->query($select_sql);
//echo mysql_error()."<BR><BR>";
if(!$result)
{
echo "fail";
exit;
}
if(mysql_num_rows($result) == 0)
{
// no record, so insert
$insert_sql = "INSERT INTO ".TABLE_PREFIX."inventory (inventory_part_number, inventory_alt_part_number, inventory_condition_code,
inventory_quantity, inventory_description, last_update, user_id) VALUES (
'{$val[0]}', '{$val[1]}', '{$val[2]}', '{$val[3]}', '{$val[4]}', NOW(), '{$user_id}')";
//echo $insert_sql."<BR><BR>";
$result = $this->db->query($insert_sql);
echo "Inserted: ".$val[0]."<br />";
}
else
{
$update_sql = "UPDATE ".TABLE_PREFIX."inventory SET inventory_part_number='{$val[0]}', inventory_alt_part_number='{$val[1]}',
inventory_condition_code='{$val[2]}', inventory_quantity='{$val[3]}', inventory_description='{$val[4]}', last_update = NOW()
WHERE user_id = {$user_id} AND inventory_part_number = '{$val[0]}'";
//echo $update_sql."<BR><BR>";
$result = $this->db->query($update_sql);
echo "Updated: ".$val[0]."<br />";
}
}
}
$update_sql = "UPDATE ".TABLE_PREFIX."file_upload SET file_flag = 1 WHERE file_id=".$file_id." AND user_id=".$user_id;
$result = $this->db->query($update_sql);
return true;
}
}

Your Answer:

Login to answer

Other forums

PHP/Database issue
My friend is helping me make a database where you go to a certain webpage of my site and the page wi

Am I setting up my sites oldschool?
Ok,

When I create a site I open a basic template that I have created that consists of a css f

How to load mysql (and other) extensions into PHP
How to load mysql (and other) extensions into PHP PHP Development forum discussing coding practices,

Need help to identify this error please
:confused:Can anyone help me tell what this error message means? Maybe tell me where to look to fix

Display data returned from Ajaxservices!!
I have a question about displaying results using ajax. I have part of the code below.
$.ajax({

Help? Need help on project with templates involving mysql and php.
I'm having a hard time explaining what I want but basically here is what I have in place:

-Da

javascript in php code causes page to display white
Hi All,

Odd one this, I've got the following code (below) which is a simple log in form. The

what business processes?
Hi,

A general question. What business processes (like OTC - Order to Cach, P2P, R2R etc)

Must be a string? Huh, what? HELP?
with the following script, I get
Fatal error: Property name must be a string in /home/content/e/

Simple MySQL script is not working
Hey guys,

Just familiarizing myself with PHP and MySQL. I am following along in the O'Reilly