Check Vowel in PHP

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Q. Write a PHP program to check whether a character is a vowel or not

<?php
// Define a character
$char = 'E';
$char = strtolower($char); // Convert to lowercase

// Check if the character is a vowel
if ($char == 'a' || $char == 'e' || $char == 'i' || $char == 'o' || $char == 'u') {
    echo "$char is a vowel.";
} else if (ctype_alpha($char)) {
    echo "$char is a consonant.";
} else {
    echo "Invalid input! Please enter an alphabet character.";
}
?>
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Q. Write an algorithm to check vowel or consonant in PHP

1. Start
2. Define a character variable char
3. Convert char to lowercase
4. If char is one of 'a', 'e', 'i', 'o', 'u', then
    → Print "Vowel"
5. Else if char is an alphabet character, then
    → Print "Consonant"
6. Else
    → Print "Invalid input"
7. End
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