What is the function used to get the last modification time of a file in PHP?

To get the last modification time of a file in PHP, you can use the `filemtime()` function. This function returns the Unix timestamp of the last modification time of the specified file. You can then use this timestamp with the `date()` function to format it into a human-readable date and time. 

$filename = 'example.txt';
$lastModifiedTime = filemtime($filename);
$lastModifiedTimeString = date("Y-m-d H:i:s", $lastModifiedTime);

echo "Last modified time of $filename: $lastModifiedTimeString";

Keywords

filemtime PHP file modification time function

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