<?php

/**

* Strips metadata from timestamps for manual execution.

* Supports older PHP versions.

*

* @param string $timestamp The timestamp string.

* @return string The timestamp without metadata, or the original timestamp if invalid.

*/

function stripTimestampMetadata(string $timestamp): string

{

// Check if the timestamp is valid.

if (!filter_var($timestamp, FILTER_VALIDATE_INT)) {

return $timestamp; // Return original if invalid

}

// Convert the timestamp to a DateTime object.

$datetime = new DateTime();

$datetime->setTimestamp((int)$timestamp);

// Format the timestamp without metadata (e.g., remove timezone info).

return $datetime->format('Y-m-d H:i:s');

}

//Example Usage (uncomment to test):

/*

$timestamp = '1678886400';

$stripped_timestamp = stripTimestampMetadata($timestamp);

echo "Original timestamp: " . $timestamp . "\n";

echo "Stripped timestamp: " . $stripped_timestamp . "\n";

$timestamp = '2023-03-15 10:30:00';

$stripped_timestamp = stripTimestampMetadata($timestamp);

echo "Original timestamp: " . $timestamp . "\n";

echo "Stripped timestamp: " . $stripped_timestamp . "\n";

$timestamp = 'invalid_timestamp';

$stripped_timestamp = stripTimestampMetadata($timestamp);

echo "Original timestamp: " . $timestamp . "\n";

echo "Stripped timestamp: " . $stripped_timestamp . "\n";

*/

?>