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PHP is a general-purpose scripting language especially suited to web development.
Java is a high-level programming language developed by Sun Microsystems. It was originally designed for developing programs for set-top boxes and handheld devices, but later became a popular choice for creating web applications.
<?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
?>
public class PalindromeChecker {
public static boolean isPalindrome(String str) {
String cleanStr = str.toLowerCase().replaceAll("[^a-z0-9]", "");
return cleanStr.equals(new StringBuilder(cleanStr).reverse().toString());
}
public static void main(String[] args) {
System.out.println(isPalindrome("A man, a plan, a canal: Panama")); // true
System.out.println(isPalindrome("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));
?>
public class BubbleSort {
public static void bubbleSort(int[] arr) {
int n = arr.length;
for (int i = 0; i < n; i++) {
for (int j = 0; j < n - i - 1; j++) {
if (arr[j] > arr[j + 1]) {
int temp = arr[j];
arr[j] = arr[j + 1];
arr[j + 1] = temp;
}
}
}
}
public static void main(String[] args) {
int[] arr = {64, 34, 25, 12, 22, 11, 90};
bubbleSort(arr);
System.out.println(Arrays.toString(arr));
}
}
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