In what situations would it be more efficient to just check the file size instead of reading the entire contents of a file in PHP?

Checking the file size instead of reading the entire contents of a file in PHP would be more efficient when you only need to determine the size of the file without actually processing its contents. This can save time and resources, especially for large files, as reading the entire file can be unnecessary if you only need the size information. 

$file = 'example.txt';

// Get the file size
$fileSize = filesize($file);

echo "The file size of $file is: $fileSize bytes";

Keywords

file size read file contents efficiency PHP situations

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