DanielGeek

Question 1
This issue is a result of a memory error generated when the code attempts to load the entire dataset from largeTable into memory using fetchAll(). This approach is not memory-efficient, particularly with large datasets, leading to the PHP error. To mitigate this, the code can be refactored to fetch and process data in chunks rather than all at once. Here's an improved approach using a loop and cursor:

In the refactored code snippet below, data is fetched row by row within a while loop using fetch() instead of fetchAll(). This means only one row of data is held in memory at any given time, significantly reducing memory usage during the process. It's important to ensure PDO::MYSQL_ATTR_USE_BUFFERED_QUERY is set to false before fetching the data to prevent PHP from buffering the entire result set in memory. This attribute is specific to MySQL; adjustments may be needed for other databases. After processing the data, remember to reset PDO::MYSQL_ATTR_USE_BUFFERED_QUERY to its original state, especiall

DanielGeek

#!/bin/bash
# Use this for your user data (script from top to bottom)
# install httpd (Linux 2 version)
yum update -y
yum install -y httpd
systemctl start httpd
systemctl enable httpd
echo "<h1>Hello World from $(hostname -f)</h1>" > /var/www/html/index.html