PHP: Get single value from txt file - php

Question

I have this text-file:
STATIONS_ID;MESS_DATUM; QN;PP_10;TT_10;TM5_10;RF_10;TD_10;eor
5371;201912250000; 2; 903.5; 2.3; 2.2; 100.0; 2.3;eor
[...]
5371;201912251820; 2; 913.3; 0.4; 0.3; 100.0; 0.4;eor
And I want to get ONLY the last line with timestamp 25-12-2019 18:20 (201912251820).
Thats my php code (finally I want to save the data in my MySQL database):
$row = 1;
if(($handle = fopen("produkt_zehn_now_tu_20191225_20191226_05371.txt", "r")) !== FALSE)
{
while(($data = fgetcsv($handle, 1000, ",")) !== FALSE)
{
echo "<p> 1 fields in line $row: <br /></p>\n";
$row++;
for($c=0; $c < 1; $c++)
{
echo $data[$c] . "<br />\n";
$daten = $data[$c];
$carray = explode(";", $daten);
list($station,$zeit,$quali,$luftdruck,$temp2m,$temp5cm,$feuchte,$taupunkt) = $carray;
echo "<b>temp2m:".$temp2m."</b>";
/*
$res_wetterdaten_dwd = $sql_datenbank -> query("INSERT INTO wetterdaten_dwd
(daten_zeit, daten_luftdruck, daten_temp2m, daten_temp5cm, daten_feuchte, daten_taupunkt, daten_station)
VALUES ('".$zeit."', ".$luftdruck.", ".$temp2m.", ".$temp5cm.", ".$feuchte.", ".$taupunkt.", ".$station.")");
*/
}
}
fclose($handle);
}

Answer 1

<?php
function getDateFromFile($file = 'text.txt')
{
$f = fopen($file, 'r');
$cursor = -1;
$line = '';
fseek($f, $cursor, SEEK_END);
$char = fgetc($f);
/**
* Trim trailing newline chars of the file
*/
while ($char === "\n" || $char === "\r") {
fseek($f, $cursor--, SEEK_END);
$char = fgetc($f);
}
/**
* Read until the start of file or first newline char
*/
while ($char !== false && $char !== "\n" && $char !== "\r") {
/**
* Prepend the new char
*/
$line = $char . $line;
fseek($f, $cursor--, SEEK_END);
$char = fgetc($f);
}
$value = explode(";", $line);
$year = substr($value[1], 0, 4);
$month = substr($value[1], 4, 2);
$day = substr($value[1], 6, 2);
$hour = substr($value[1], 8, 2);
$min = substr($value[1], 10, 2);
$date = new DateTime("$year-$month-$day $hour:$min");`
return $date;
}
print_r(getDateFromFile("produkt_zehn_now_tu_20191225_20191226_05371.txt"));