Question

How to get the first and the last digit of a number in PHP

Answer 1

$n = 234728;

$first_digit = substr($n, 0, 1);
echo $first_digit ."\n";

$last_digit = $n % 10;
echo $last_digit;





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run:

2
8

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Answer 2

$n = 234728;

$s = (string)$n; 

echo $s[0] . "\n";
echo $s[strlen($s) - 1];





/*
run:

2
8

*/

 

70+ SQL courses for beginners and professionals

Answer 3

$n = 234728;

echo substr($n, 0, 1) . "\n";
echo substr($n, -1); 





/*
run:

2
8

*/

 

70+ SQL courses for beginners and professionals

Answer 4

$n = 234728;

$arr = str_split($n); 
echo reset($arr) . "\n";
echo end($arr);  





/*
run:

2
8

*/

 

70+ SQL courses for beginners and professionals

Answer 5

$n = 234728;

$arr = str_split($n); 
echo $arr[0] . "\n";
echo $arr[sizeof($arr) - 1];  





/*
run:

2
8

*/

 

70+ SQL courses for beginners and professionals