What are some potential pitfalls to avoid when sorting a list of names alphabetically in PHP?

One potential pitfall to avoid when sorting a list of names alphabetically in PHP is to ensure that the sorting is case-insensitive. If the sorting is case-sensitive, names starting with uppercase letters will be sorted separately from names starting with lowercase letters, leading to incorrect results. To solve this issue, you can use the `strcasecmp()` function in PHP, which performs a case-insensitive string comparison. 

// List of names to be sorted alphabetically
$names = array("Alice", "bob", "Charlie", "dave");

// Sort the names alphabetically in a case-insensitive manner
usort($names, function($a, $b) {
    return strcasecmp($a, $b);
});

// Print the sorted names
foreach ($names as $name) {
    echo $name . "\n";
}

Keywords

usort strcmp array_multisort sorting algorithm collation

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