What are the potential pitfalls of calling a function in one script from another in PHP?

One potential pitfall of calling a function in one script from another in PHP is that the function may not be accessible if the script containing the function is not properly included or required. To solve this issue, make sure to include or require the script containing the function before calling it in the other script. 

// Include the script containing the function
include 'functions.php';

// Call the function from the included script
$result = myFunction();

Keywords

function call script PHP scope variable scope

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