function main($argv)
{
if (count($argv) != 2) {
echo "Invalid arguments. Usage :: php palindrome_check.php <your-word-be-asked-palindrome>\n";
exit(1);
}
$argv[1] .= is_palindrome(str_split($argv[1])) ? " is palindrome.\n" : " is NOT palindrome.\n";
echo $argv[1];
}
function reverse_and_add($num)
{
$i = 0;
while (true) {
if (is_palindrome((string) $num)) {
return "{$i} {$num}";
}
$num = $num + (int) strrev($num);
$i++;
}
}
<?php
function is_palindrome(array $s)
{
$counted_values = array_count_values($s);
$count_singles = 0;
foreach ($counted_values as $v) {
if ($v === 1 || $v % 2 !== 0) {
$count_singles++;
}
if ($count_singles > 1) {
return false;
}
}
return true;
}
$s = str_split(trim(fgets(STDIN)));
echo is_palindrome($s) ? 'YES' : 'NO';
/**
* @depends testPalindromeloader
* @expectedException \InvalidArgumentException
*/
public function testIsPalindromeException()
{
is_palindrome([]);
}
}
}
}
//Check
foo_odd(10, 35);
//Task 7
echo '<h1>Task 7</h1>';
function utf8_strrev($str)
{
preg_match_all('/./us', $str, $ar);
return join('', array_reverse($ar[0]));
}
function is_palindrome($word)
{
if (is_string($word)) {
$word = strtolower($word);
$reverse = utf8_strrev($word);
if ($word == $reverse) {
return true;
} else {
return false;
}
}
}
//Check
$word = "raceqcar";
$cheack_polindrom = is_palindrome($word);
var_dump($cheack_polindrom);
?>
<?php
$pal = 0;
for ($a = 999; $a > 99; $a--) {
for ($b = 999; $b > 99; $b--) {
$num = $a * $b;
if (is_palindrome($num) && $num > $pal) {
$pal = $num;
}
}
}
echo "{$pal}\n";
function is_palindrome($s)
{
$rev = strrev($s);
if (strcmp($rev, $s) == 0) {
return true;
} else {
return false;
}
}
<?php
function is_palindrome($str)
{
if (strlen($str) <= 1) {
return true;
}
$str_cleaned = preg_replace('/\\s|[[:punct:]]|_/', '', $str);
if (strrev($str_cleaned) == $str_cleaned) {
return "true";
} else {
return "false";
}
}
function print_r2($val)
{
echo '<pre>';
print_r($val);
echo '</pre>';
}
print_r2(is_palindrome("racecar"));
print_r2(is_palindrome("rac ecar ."));
print_r2(is_palindrome("yolo"));