Şimdi daha net anladım hocam
<?php
if ( isset ( $_POST['resim_submit'] ) ) {
if ( empty( $_POST['url'] ) || empty ( $_POST['sayi'] ) || empty ( $_POST['extension'] ) ) die('Bazı Değerler Eksik');
for( $k = 1; $k <= $_POST['sayi']; $k++) {
$extension = trim($_POST['extension']);
$url = trim($_POST['url'])."/$k.$extension";
$ext = $k . "." . $extension;
$fix_url = str_replace('page//','page/', trim($url));
$get_contents = file_get_contents($fix_url);
file_put_contents(trim($ext), $get_contents);
echo "$ext <= saved! { $fix_url }<br />";
}
foreach($_POST as $keys => $values) {
echo "$keys => $values <br />";
}
}
?>
<form method="post">
<input placeholder="Resim URL" type="text" name="url" <?= isset ( $_POST['url'] ) ? "value=\"" .$_POST['url']. "\"" : null ?>>
<input placeholder="İndirme Sayısı" type="text" name="sayi" <?= isset ( $_POST['sayi'] ) ? "value=\"" . $_POST['sayi'] . "\"" : null ?>>
<label for="png">PNG:</label> <input type="radio" id="png" name="extension" value="png" <?= isset ( $_POST['extension'] ) && $_POST['extension'] == "png" ? "checked" : null; ?>>
<label for="gif">GIF:</label> <input type="radio" id="gif" name="extension" value="gif" <?= isset ( $_POST['extension'] ) && $_POST['extension'] == "gif" ? "checked" : null; ?>>
<label for="webp">WEBP:</label> <input type="radio" id="webp" name="extension" value="webp" <?= isset ( $_POST['extension'] ) && $_POST['extension'] == "webp" ? "checked" : null; ?>>
<label for="jpg">JPG:</label> <input type="radio" id="jpg" name="extension" value="jpg" <?= isset ( $_POST['extension'] ) && $_POST['extension'] == "jpg" ? "checked" : null; ?>>
<label for="jpeg">JPEG:</label> <input type="radio" id="jpeg" name="extension" value="jpeg" <?= isset ( $_POST['extension'] ) && $_POST['extension'] == "jpeg" ? "checked" : null; ?>>
<input type="submit" name="resim_submit">
</form>Bu şekilde çalışyor olmalı.