What potential pitfalls should be considered when using array_map with basename in PHP?

When using array_map with basename in PHP, one potential pitfall to consider is that basename expects a string as its input, so if the array_map callback function returns anything other than a string, it can cause unexpected behavior or errors. To avoid this issue, ensure that the callback function explicitly returns a string when using array_map with basename. 

// Example of using array_map with basename safely
$files = ['/path/to/file1.txt', '/path/to/file2.txt', '/path/to/file3.txt'];

// Using a callback function to extract the filenames using basename
$filenames = array_map(function($file) {
    return basename($file); // Ensure that basename always returns a string
}, $files);

print_r($filenames);

Keywords

array_map basename PHP file paths error handling

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