Upload data to mysql with php - php

Question

I try to upload my data to mysql Its working but it takes 35sec, too many sec.
What do I need to change in my code that it will work faster than 35 sec?
I use php to write my code and SQL query to send the data to my table that called "words" .
At my table in the database I have 4 columns ('word', 'num', 'hit', 'instoplist').
What I can do to fix this problem?
Thanks
This is my code:
<?php
function removeStopWordsFromArray($words)
{
.......
insert($words);
}
function insert($myWords)
{
global $conn;
foreach ($myWords as $key => $value) {
$word = $value['word'];
$number = $value['document'];
$hit = $value['hit'];
$stop = $value['stopList'];
$sql = "INSERT INTO words (word,num,hit,instoplist) VALUES ('$word', '$number', '$hit','$stop')";
if($conn->query($sql)!== TRUE)
{
echo "error". $conn->error;
}
}
fclose($fp);
}
$temp = pareseDocs();
removeStopWordsFromArray($temp);
?>

Answer 1

For every data you are running a query in DB. But the correct way in your case is to insert data in batches. You can write the code is following way:
$sql = "INSERT INTO words (word,num,hit,instoplist) VALUES";
foreach ($myWords as $key => $value) {
$word = $value['word'];
$number = $value['document'];
$hit = $value['hit'];
$stop = $value['stopList'];
$sql .= "('$word', '$number', '$hit','$stop'),";
}
$sql = rtrim($sql,',') //to remove last comma
if($conn->query($sql)!== TRUE)
{
echo "error". $conn->error;
}
This will run only single query in DB. Hence will be faster.

Answer 2

You can try this query outside of loop pass only one query:
INSERT IGNORE INTO MyTable ( Column1, Column2 ) VALUES
( Value1, Value2 ), ( Value1, Value2 )
IGNORE FOR HANDLING ERRORS

Answer 3

Your problem is that you are making each query separately in a for loop.
Take a look at https://stackoverflow.com/a/452934/4988637 to find out more on how to insert mutliple rows in a single query.
If you change your method to one single query, you should find your program's run-time to be drastically shortened.
In SQL Server 2008 you can insert multiple rows using a single SQL
INSERT statement.
INSERT INTO MyTable ( Column1, Column2 ) VALUES
( Value1, Value2 ), ( Value1, Value2 )
For reference to this have a look at MOC Course 2778A - Writing SQL
Queries in SQL Server 2008.
In your case, you could modify your code to look something like the following.
$sql = "INSERT INTO words (word, num, hit, instoplist) VALUES ";
foreach($myWords as $key => $value) {
$word = $value['word'];
$number = $value['document'];
$hit = $value['hit'];
$stop = $value['stopList'];
$sql .= "('$word', '$number', '$hit','$stop'),";
}
$sql = rtrim($sql, ',');
if($conn->query($sql) !== true) {
echo "error".$conn->error;
}