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Unsupported Operand Types?


Moorcam
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Go to solution Solved by Barand,

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Howdy folks,

Calculating times between start and finish. Have them working but when calculating total hours - breaks I get the following error:

Fatal error: Uncaught TypeError: Unsupported operand types: int + string in

Here is the PHP code for the calculations:

<?php 
if(isset($_POST['calculate']) != ""){
class times_counter {

    private $hou = 0;
    private $min = 0;
    private $sec = 0;
    private $totaltime = '00:00:00';

    public function __construct($times){
        
        if(is_array($times)){

            $length = sizeof($times);

            for($x=0; $x <= $length; $x++){
                    $split = explode(":", @$times[$x]); 
                    $this->hou += @$split[0];
                    $this->min += @$split[1];
                    $this->sec += @$split[2];
            }

            $seconds = $this->sec % 60;
            $minutes = $this->sec / 60;
            $minutes = (integer)$minutes;
            $minutes += $this->min;
            $hours = $minutes / 60;
            $minutes = $minutes % 60;
            $hours = (integer)$hours;
            $hours += $this->hou % 24;
            $this->totaltime = $hours.":".$minutes;
        }
    }

    public function get_total_time(){
        return $this->totaltime;
    }

}
$times = array(
   $mondiff->format('%H:%I'),
   $tuediff->format('%H:%I'),
   $weddiff->format('%H:%I'),
   $thurdiff->format('%H:%I'),
   $fridiff->format('%H:%I'),
   $satdiff->format('%H:%I'),
   $sundiff->format('%H:%I'),
);
$counter = new times_counter($times);

?>

The line that is throwing the error is:

                    $this->hou += @$split[0];

Any help with this would be appreciated.

Cheers

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  • Solution

PHP v8 doesn't let you mix indeterminate types, such as adding an empty string to an int.

$a = 1;
$b = '2';
$c = '';

echo $a + $b;         //  3          OK

echo $a + $c;         //  Unsupported operand types: int + string

echo $a + (int)$c;    //  1          OK

Use a cast to int.

$this->hou += (int)$split[0];

That said, you really are doing the calculations the hard way

$t1 = '09:30:00';
$t2 = '17:15:00';

$dt1 = new DateTime($t1);                    
$dt2 = new DateTime($t2);
echo $dt2->diff($dt1)->format('%H:%I:%S');            //  07:45:00 

 

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8 minutes ago, Barand said:

PHP v8 doesn't let you mix indeterminate types, such as adding an empty string to an int.

$a = 1;
$b = '2';
$c = '';

echo $a + $b;         //  3          OK

echo $a + $c;         //  Unsupported operand types: int + string

echo $a + (int)$c;    //  1          OK

Use a cast to int.

$this->hou += (int)$split[0];

That said, you really are doing the calculations the hard way

$t1 = '09:30:00';
$t2 = '17:15:00';

$dt1 = new DateTime($t1);                    
$dt2 = new DateTime($t2);
echo $dt2->diff($dt1)->format('%H:%I:%S');            //  07:45:00 

 

Thanks mate.

Now getting this:

Warning: Undefined array key 2 in D:\xampp\htdocs\protour\admin\add-timesheet.php on line 351

Warning: Undefined array key 1 in D:\xampp\htdocs\protour\admin\add-timesheet.php on line 350

 

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