What potential pitfalls can arise when working with file contents in PHP, particularly when generating random sentences?

One potential pitfall when working with file contents in PHP, especially when generating random sentences, is the risk of including inappropriate or offensive language unintentionally. To mitigate this risk, you can create a list of acceptable words or phrases to use in the random sentence generation process. 

$words = array("apple", "banana", "orange", "kiwi", "grape");
$sentence = "";

for ($i = 0; $i < 5; $i++) {
    $random_word = $words[array_rand($words)];
    $sentence .= $random_word . " ";
}

echo $sentence;

Keywords

file handling random sentences string manipulation encoding error handling

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