Here is a PHP program to check a string is a palindrome or not using for loop.
<html> <body> <?php $count=0; $a="madam"; for($i=0;$i<strlen($a);$i=$i+1) { if($a{$i}==$a{strlen($a)-$i-1}) { $count=$count+1; } } if($count==strlen($a)) echo "The string is a palindrome"; else echo "The string is not a palindrome"; ?> </body> </html>
Output: The string is a palindrome