5
28/10/2024 6:52 pm
トピックスターター
Enter a day number [1…7] and print the day name (in English) or “Invalid Day!“.
Use an array of strings.
Examples:
3件の回答
4
28/10/2024 6:53 pm
You can use isset() - line 15. Also see line 3 for the user input 🙂
Here is my code:
<?php
$desiredDay = intval(readline()) - 1;
$days = [
'Monday',
'Tuesday',
'Wednesday',
'Thursday',
'Friday',
'Saturday',
'Sunday'
];
if (isset($days[$desiredDay])) {
echo $days[$desiredDay];
} else {
echo 'Invalid Day!';
}
3
28/10/2024 6:54 pm
I've used unset() for the 0 element of the array (to get rid of it)...
<?php
$desiredDay = intval(readline());
$days = [
'Dummy',
'Monday',
'Tuesday',
'Wednesday',
'Thursday',
'Friday',
'Saturday',
'Sunday'
];
unset($days[0]);
if (isset($days[$desiredDay])) {
echo $days[$desiredDay];
} else {
echo 'Invalid Day!';
}
2
28/10/2024 6:55 pm
Another one:
<?php
$days = [
'Monday',
'Tuesday',
'Wednesday',
'Thursday',
'Friday',
'Saturday',
'Sunday'
];
$day = intval(readline());
if ($day >= 1 && $day <= 7) {
echo $days[$day - 1];
} else {
echo 'Invalid Day!';
}
