mass add time in a file

Question

i have a file in which time appears nearly hundred times like

00:01:32
00:01:33
00:01:36
.......................

how can i add 2 seconds or 2 minutes to all the times in the file so that i get

00:01:34
00:01:35
00:01:38
..................

Answer 1

You can use preg_replace with the e modifier to make it execute code to determine the replacement, then strtotime can parse it and do the necessary adjustments:

$data = preg_replace('/([0-9]{2}(:[0-9]{2}){2})/e', 'modify_time("$1")', $data);

function modify_time($time) {
  return date('H:i:s', strtotime('+2 seconds', strtotime($time)));
}

Answer 2

Actually it's elementary school question, how to add some minutes to the certain time. this text can be easily parsed into array with seconds and then adding certain amount of seconds to it's each member wouldnt be a big deal.

Answer 3

$min=date("i")+2;
if ($min<10)
{
    $min="0".$min;
}
$time= date("H:").$min;
echo $time;

Answer 4

<?php

$fp = fopen('yourfile.txt', 'r');
$fpr=fopen('result.txt','a');
while (!feof($fp))
{
$mytext = fgets($fp, 9);
echo $mytext."<br />";
$result = substr($mytext,-2,2);

if ($result<=60)
{
    $result=$result+2;
    $result=substr($mytext,1,5).$result;
    echo $result."<br>";
    fwrite($fpr, $result);
}
else
{ 
    if ($result==58)
    $result="00";

    if ($result==59)
    $result="01";

    if ($result==60)
    $result="02";


    $result=substr($mytext,1,5).$result;
    echo $result."<br>";
    fwrite($fpr, $result);

}

}

?>