How can someone ensure they are using PHP efficiently and effectively in their projects?

To ensure efficient and effective use of PHP in projects, it is important to follow best practices such as optimizing code, using appropriate data structures, caching data when possible, and avoiding unnecessary database queries. 

// Example of optimizing code by storing repeated calculations in variables
$radius = 5;
$pi = 3.14;
$area = $pi * ($radius * $radius);
echo "The area of the circle is: " . $area;

Keywords

PHP optimization performance caching profiling

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