注意：未定义的偏移量：第19行的C：\ xampp \ htdocs \ h_php \ addTimes.php中的1

Question

With the below code I have a problem where I'm getting the 1st and 2nd row just fine, but the 3rd and next rows only give this error:

Notice: Undefined offset: 1 in C:\xampp\htdocs\h_php\addTimes.php on line 19.

<?php
$timearry="";
$timearry=array("1:10","1:40","1:20","0:50");
$i=0;
$day1hours="";
foreach($timearry as $times){
    if($i==0){
        echo $day1hours= $times;
        echo "<br>";
    }else{
        $day2hours = $times;
        $day1=array();
        $day1 = explode(":", $day1hours);
        $day2 = explode(":", $day2hours);
        $totalmins = 0;
        $totalmins += $day1[0] * 60;
        $totalmins += $day1[1];
        $totalmins += $day2[0] * 60;
        $totalmins += $day2[1];
        $hoursTotal = $totalmins / 60;
        $hours=0;
        $hours = explode(".", $hoursTotal);
        $hours= $hours[0];
        $minutes = $totalmins % 60;
        echo $day1hours = "$hours".'Hours '."$minutes".' Mints';
        echo "<br>";
    }
    $i++;
}
?>

Answer 1

According to your logic,

Here is the mistake

echo $day1hours = "$hours" . 'Hours ' . "$minutes" . ' Mints';

This line should be

echo $day1hours = $hours . ':'.$minutes;

Output:

1:10
2:50
4:10
5:0

See demo here