Input
Output
<?php // Define two strings $str1 = "Hello"; $str2 = "hello"; // Compare using strcmp (case-sensitive) if (strcmp($str1, $str2) == 0) { echo "Strings are equal (case-sensitive)."; } else { echo "Strings are NOT equal (case-sensitive)."; } echo "<br>"; // Compare using strcasecmp (case-insensitive) if (strcasecmp($str1, $str2) == 0) { echo "Strings are equal (case-insensitive)."; } else { echo "Strings are NOT equal (case-insensitive)."; } ?>