PHP begin time and end time issue

class Test extends Controller {    
public function start_process(){  
     $begin_time = time();  
     echo $begin_time ;   // suppose it shows 1318412333
    // statement 1   
    // statement 2   
    // statement 3   
    // statement 4   
    // statement 5   
    // statement 6   
    // some more code

    $this->end_process($begin_time);  
    }

    public function end_process($begin_time){  
    $end_time = time();
    echo $begin_time . " " . $end_time;  
    }
}

Now when i echo in end_p开发者_如何学运维rocess function . Suppose end_time is 1318412390 i get begin_time same as end_time. Why does this happen.. How do get the original begin_time which was set in first function

Try using microtime. It gives you a more accurate time reading for when execution time is less than a second.

Edit

microtime(true); will return the time as a float so it's easier to see the difference.

time(); gives you seconds, but what you're actually dealing with is fractions thereof. As spider pointed out, you want to go with microtime()!

<?php

$start = microtime(true);

// -- do something --

// calulcate duration between $start and now
$duration = microtime(true) - $start;
// print in the format 1.2345 for better reading
printf("took %0.4d seconds", $duration);

I did a quick test:

<?php
ini_set('display_errors', true);
class test {

    public function start_process(){  
        $begin_time = time();  
        echo $begin_time . "<br>";   // suppose it shows 1318412333
        // statement 1   
        // statement 2   
        // statement 3   
        // statement 4   
        // statement 5   
        // statement 6   
        // some more code
        sleep(1);
        $this->end_process($begin_time);  
    }

    public function end_process($begin_time){  
        $end_time = time();
        echo $begin_time . " <br> " . $end_time;  
    }
}

$test = new test();
$test->start_process();

?>

My result is

1318415493
1318415493
1318415494

Please post your code.

Just run this code:

$test = new Test();
    $test->start_process();

    class Test  {    
    public function start_process(){  
         $begin_time = microtime(true);  
         echo $begin_time . ' ';   // suppose it shows 1318412333 
         for($i=0;$i<10000;$i++) { 
           //just some delay as if the script is doing something
         }
        $this->end_process($begin_time);  
        }

        public function end_process($begin_time){  
        $end_time = microtime(true);
        echo $begin_time . " " . $end_time;  
        }
    }

You'll see that is works, so that piece of code isn't the problem. The error must be in some other part of the code.