PHP - Live Search Help

Hi,

I am doing some scraping and processing in php that is time intensive.  On my local machine it was no big deal, but now that the project is live and has realtime users daily I have some concerns.

When php is processing does this mean other people can't connect to the server? (They will be queued until the process I am running finishes) ?

I hope not, but my local testing seems like it IS that way.  

I did this:

I ran a php script from my browser that took a few minutes to execute.  While it was running I tried accessing the same local site via another browser tab and it halted.

If this is in fact how php works on the live server, how would I go about running about 6000 processes daily that would consume ~1-4 hours of processing time?

Thanks.

As we have been working on an eCommerce project, we want to add an option in the eCommerce, that user should have the live location tracking of delivery boy (as same as SWIGGY) in the website. Is there any chance to track the live location using PHP and JavaScript? Searched on the google but nothing resolved my problem? Please anyone suggest us to track the live location of the delivery boy. Thanks in advance

				<div class="widget">
		<?php
				
				echo '<h2>Tags</h2>';
				echo '<ul>';
				getTagCount($DBH);
				echo '</ul>';
		?>
			</div>

function getTagCount($DBH) {
    
    //Make the connection and grab all the tag's TAG TABLE HAS TWO FIELDS id and name
            $stmt = $DBH->query("SELECT * FROM tags");
            $stmt->execute();
            $result = array();
            $result = $stmt->fetchAll();
            //For each row pulled do the following
            foreach ($result as $row){
                //set the tagId and tagName to the id and name fields from the tags table
                $tagId = $row['id'];
                $tagName = ucfirst($row['name']);
                
                //Next grab the list of used tags BLOG_POST_TAGS TABLE HAS TWO FILEDS blog_post_id and tag_id
                $stmt2 = $DBH->query("SELECT count(*) FROM blog_post_tags WHERE tag_id = " . $tagId);
                $stmt2->execute();
                $tagCount = $stmt2->fetchColumn();
                
                //Print the following list 
                echo '<li><a href="blog_tags.php?tagId=' . $tagId . '"title="' . $tagName . '">' . $tagName . '(' . $tagCount . ')</a></li></form>';
                
            //End of loop - start again
            }
            
}

hello sir,

            i  have to connect database to my live server using 

<?php

define('DB_HOST', 'localhost');
define('DB_NAME', 'oop_pdo_crud');
define('DB_USER', 'root');
define('DB_PASS', '');

?>

or