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PHP is a general-purpose scripting language especially suited to web development.
Ruby is an interpreted, high-level, general-purpose programming language. It was designed and developed in the mid-1990s by Yukihiro "Matz" Matsumoto in Japan.
<?php
function isPalindrome($str) {
$clean = preg_replace("/[^a-zA-Z0-9]/", "", strtolower($str));
return $clean === strrev($clean);
}
// Example usage
echo isPalindrome("A man, a plan, a canal: Panama") ? "true" : "false"; // true
echo "\n";
echo isPalindrome("race a car") ? "true" : "false"; // false
?>
def palindrome?(str)
clean = str.downcase.gsub(/[^a-z0-9]/, '')
clean == clean.reverse
end
# Example usage
puts palindrome?("A man, a plan, a canal: Panama") # true
puts palindrome?("race a car") # false
<?php
function bubbleSort($arr) {
$n = count($arr);
for ($i = 0; $i < $n; $i++) {
for ($j = 0; $j < $n - $i - 1; $j++) {
if ($arr[$j] > $arr[$j + 1]) {
$temp = $arr[$j];
$arr[$j] = $arr[$j + 1];
$arr[$j + 1] = $temp;
}
}
}
return $arr;
}
$arr = array(64, 34, 25, 12, 22, 11, 90);
print_r(bubbleSort($arr));
?>
def bubble_sort(arr)
n = arr.length
n.times do |i|
(n - i - 1).times do |j|
if arr[j] > arr[j + 1]
arr[j], arr[j + 1] = arr[j + 1], arr[j]
end
end
end
arr
end
# Example usage
arr = [64, 34, 25, 12, 22, 11, 90]
puts bubble_sort(arr.dup).inspect
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