Php > Date Time sample source codes

A function that will calculate elapsed time in d-hh-mm-ss format.

A function that will calculate elapsed time in d-hh-mm-ss format.

<?php 
Function elapsedtime ($stop, $start) { 

        $id2 = substr($stop, 0, 1);//day when stop 
        $id1 = substr($start, 0, 1);//day when start 
        $a_1 = substr($stop, 2, 2); //hour when stop 
        $b_1 = substr($start, 2, 2); //hour when start 
        $a_2 = substr($stop, 5, 2); //minutes when stop 
        $b_2 = substr($start, 5, 2); //minutes when start 
        $a_3 = substr($stop, 8, 2); //seconds when stop 
        $b_3 = substr($start, 8, 2); //seconds when start 
         
        if (b_1 > $a_1 && $b_2 > $a_2 && b_3 > a_3) 
        { 
        $ide= $id2 - $id1 - 1; 
        $a = $a_1 - $b_1 + 23; 
        $b = $a_2 - $b_2 + 59; 
        $c = $a_3 - $b_3 + 60;} 
        else if ($b_1 > $a_1 && $b_2 > $a_2) 
        { 
        $ide=$id2-$id1 - 1; 
        $a = $a_1 - $b_1 + 23; 
        $b = $a_2 - $b_2 + 60; 
        $c = $a_3 - $b_3;} 
        else if ($b_1 > $a_1) 
        { 
        $ide=$id2 - $id1 - 1; 
        $a = $a_1 - $b_1 + 24; 
        $b = $a_2 - $b_2; 
        $c = $a_3 - $b_3;} 
        else if ($b_1 > $a_1 && $a_3 > $b_3) 
        { 
        $ide=$id2-$id1 - 1; 
        $a = $a_1 - $a_2; 
        $b = $a_2 - $b_2 - 1; 
        $c = $a_3 - $b_3 + 60;} 
        else if ($a==0 && $b_3 > $a_3) { 
        $ide= $id2-$id1; 
        $a = $a_1 - $b_1; 
        $b = $a_2-$b_2 - 1; 
        $c = $a_3 - $b_3 + 60;} 
        else if($b_2 > $a_2) { 
        $ide= $id2-$id1;                                                
        $a = $a_1 - $b_1 - 1; 
        $b = $a_2 - $b_2 + 60; 
        $c = $a_3 - $b_3; } 
        else if($b_3 > $a_3) { 
        $ide= $id2-$id1; 
        $a = $a_1 - $b_1; 
        $b = $a_2 - $b_2 - 1; 
        $c = $a_3 - $b_3 + 60; } 
        else if (($b_2 > $a_2) && ($b_3 > $a_3)) { 
        $ide= $id2-$id1;    
        $a = $a_1 - $b_1 - 1; 
        $b = $a_2 - $b_2 + 59; 
        $c = $a_3 - $b_3 + 60; } 
        else { 
        $ide= $id2 - $id1; 
        $a = $a_1 - $b_1; 
        $b = $a_2 - $b_2; 
        $c = $a_3 - $b_3;} 
        return $ide*24*3600 + $a*3600+ $b*60 + $c; 

} 
echo" the elapsed time  for start 0:23:35:59 and stop: 1:10:36:53 is "; 
echo elapsedtime ('1:10:36:53','0:23:35:59'); 
echo" secs";        
echo"<br>"; 
echo" the elapsed time  for start 0:23:35:59 and stop: 1:23:35:59 is "; 
echo elapsedtime ('1:23:35:59','0:23:35:59'); 
echo" secs"; 
echo"<br>"; 
echo" the elapsed time  for start 0:54:26:31 and stop: 0:55:36:28 is "; 
echo elapsedtime ('0:55:36:28','0:54:26:31'); 
echo" secs"; 
?>