PHP How to convert each element of array to timestamp?
I have a two-element array - $time

echo var_dump($time) :

    array
      0 => 
        array
          'otw' => string '12:00' (length=5)
          'zam' => string '15:00' (length=5)
     1 => 
        array
          'otw' => string '16:00' (length=5)
          'zam' => string '18:00' (length=5)
How convert each element of $time array to timestamp?

echo var_dump($time) should look like:

    array
      0 => 
        array
          'otw' => timestamp 'timestampvalue' (length=)
          'zam' => timestamp 'timestampvalue' (length=)
     1 => 
        array
          'otw' => timestamp 'timestampvalue' (length=)
          'zam' => timestamp 'timestampvalue' (length=)
PHP How to convert each element of array to timestamp?
===

I have a two-element array - $time

echo var_dump($time) :

    array
      0 => 
        array
          'otw' => string '12:00' (length=5)
          'zam' => string '15:00' (length=5)
     1 => 
        array
          'otw' => string '16:00' (length=5)
          'zam' => string '18:00' (length=5)
How convert each element of $time array to timestamp?

echo var_dump($time) should look like:

    array
      0 => 
        array
          'otw' => timestamp 'timestampvalue' (length=)
          'zam' => timestamp 'timestampvalue' (length=)
     1 => 
        array
          'otw' => timestamp 'timestampvalue' (length=)
          'zam' => timestamp 'timestampvalue' (length=)