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

Prevention Help
How can I use PHP or any other language (feel free to move this thread) to prevent users doing scree

Searching keywords from array
Hello everyone, Im just wondering if someone could help me with another issue im having. Im still le

Socket Server Response Headers
Earlier I had a post about my Socket Server, I wasn't able to get it to connect, now I can

I

frames get header location..
i have two frames, one top, one bottom. how do i do a form on the bottom frame that gives me the ur

values in array being escaped
I would like to submit some values - back to the same form for checking before processing...

Career Change into SAP
Hai
I am sajesh ,did my diploma in Mechatronics i have a 4 years of experience in

need help in update query
i create a form for update. there are 8 columns in my mysql table. on my main page all the data is r

Displaying a record from mysql in a simple swf file
Hi,

I have a mysql database containing information I would like to display in my swf.

Form always sends to error page...
Hello,
Any help will be greatly appreciated. I am having trouble getting multiple fields to be re

Not adding to db
Hi, I can't figure out why it won't add the record to the database. It's just a simple form to get