53 lines
1.1 KiB
PHP
53 lines
1.1 KiB
PHP
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Document</title>
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</head>
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<body>
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<form action="" method="post">
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<input type="text" name="palindrom" id="palindrom">
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<input type="submit" value="sprawdz palindrom">
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</form>
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<?php
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$p = $_POST["palindrom"];
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$sl = strlen($p);
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$j = 0;
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$k = 0;
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for ($i = $sl - 1; $i >= 0; $i--) {
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$palindrom[$j] = $p[$i];
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$j++;
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}
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for ($i = 0; $i < $sl; $i++) {
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echo $palindrom[$i];
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}
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for($i = 0; $i < $sl; $i++) {
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if($p[$i] != $palindrom[$i]) $k = 1;
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}
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if($k == 0) echo "<p>'$p' jest palindromem.</p>";
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else if ($k == 1) echo "<p>'$p' nie jest palindromem.</p>";
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# $odwroc = strrev($p);
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# echo "Wyraz: ",$p,"<br>";
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# echo "Palindrom: ", $odwroc,"<br>";
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# $izbs = strlen(str_replace(' ', '', $p));
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# echo 'Ilość znaków: ', $izbs,'<br>';
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#
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# if ($p == $odwroc) {
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# echo "<p>'$p' jest palindromem.</p>";
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# } else {
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# echo "<p>'$p' nie jest palindromem.</p>";
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# }
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?>
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</body>
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</html>
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