How to check current time and db time is equal in php

I am trying to compare 2 times in PHP. I fetched and stored the time in notepad from Mysql, like 21:30

22:00

22:30

then I reading time from the file and storing it in an array.

$myfile = file('Scheduled_data.txt');
$time_array = array();

// store into array 
foreach ($myfile as $line) {
    $line_array = explode("\t", $line);
    $time_array[] =  $line_array[0];
}

//looping array 
for ($i = 0; $i < count($time_array); $i++) {
    $timezone = new DateTime("now", new DateTimeZone('Asia/Kolkata') );
    $current_time=$timezone->format('H:i');
    echo  $time_array[$i]; //ex: first data 21:30
    echo "\t";
    echo $current_time; // 21:30
    if($time_array == $current_time)
    { 
      echo "yes"; // not moving inside if cond
    }
}

not moving inside if condition. but I can see the same time while printing (echo).

Updated: Sorry i did this only but still not going inside if

if($time_array[$i] == $current_time)
        { 
          echo "yes"; // not moving inside if cond
        }

Note both type is string only and tried of compare using === still no use.