function fCheckCandidate($n)
{
if (intval($n) != $n || $n <= 0) {
Mlog("nem sz�m");
return false;
}
if (get_best_candidate() <= intval($n)) {
Mlog("t�l nagy sz�m");
return false;
}
$fp = fsockopen("www.google.com", 80);
if (!$fp) {
Mlog("nem siker�lt csatlakozni");
return false;
}
$out = "GET /search?hl=en&q={$n} HTTP/1.1\r\n";
$out .= "Host: www.google.com\r\n";
$out .= "Connection: Close\r\n\r\n";
fwrite($fp, $out);
while (!feof($fp)) {
$st = fgets($fp);
Mlog($st);
if ($st != '' && $st && stristr($st, 'did not match any documents')) {
Mlog('ok');
return true;
}
}
fclose($fp);
Mlog("tal�lat a weben");
return false;
}
<?php
require 'util.php';
if (isset($_GET['x'])) {
echo get_best_candidate();
exit;
}
// Create the image
$im = imagecreatefrompng("skin/captchabg.png") or die("Cannot Initialize new GD image stream");
// Create some colors
$white = imagecolorallocate($im, 255, 255, 255);
$grey = imagecolorallocate($im, 128, 128, 128);
$black = imagecolorallocate($im, 0, 0, 0);
/*imagefilledrectangle($im, 0, 0, 399, 29, $white);*/
// The text to draw
$text = isset($_GET['n']) && isset($_GET['n']) ? $_GET['n'] : get_best_candidate();
// Replace path by your own font path
putenv('GDFONTPATH=' . realpath('.'));
$font = realpath('skin/captchafont.ttf');
// Add some shadow to the text
/*imagettftext($im, 20, 0, 11, 21, $grey, $font, $text);*/
$im2 = imagecreatetruecolor(400, 100);
$size = imagettftext($im2, 30, 0, 10, 50, $grey, $font, $text);
$xmin = $size[0];
$ymax = $size[1];
$xmax = $size[2];
$ymin = $size[5];
$width = imagesx($im);
$height = imagesy($im);
$x0 = ($width - ($xmax - $xmin)) / 2;
$y0 = $height - ($height - ($ymax - $ymin)) / 2;
