Compare Two Strings in PHP

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Q. Write a PHP program to compare two strings

<?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).";
}
?>
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Q. Write an algorithm to compare two strings in PHP

1. Start
2. Define two strings: str1 and str2
3. Use strcmp(str1, str2) to compare (case-sensitive)
4. If result is 0, print "Strings are equal"
5. Else, print "Strings are not equal"
6. Use strcasecmp(str1, str2) to compare (case-insensitive)
7. If result is 0, print "Strings are equal"
8. Else, print "Strings are not equal"
9. End
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