| Autor | Zpráva | ||
|---|---|---|---|
| tomas3333 Profil |
#1 · Zasláno: 5. 7. 2008, 18:16:46
Zdravím.
Napísal som si kod, ktory mi generuje captchu, a zaroven v nom nastavim session. Ked som zostavil formular pre registraiu, vsetko fungovalo, na reload captche som pouzil javascript. Zistil som, ze sa captcha v IE6 nechce reloadnut, sucasny obrazok zmizne a namiesto neho sa nahraje len prazdne miesto. Po skumani problemu som zistil, ze mi v IE6 nefunguje session ani cookie. ked som priamo v kode, ktory generuje captchu vymazal header pre zobrazeniei obrazka, a volal session priamo tam, normalne sa ukazala. ked som vsak na inej stranke volal tu istu session, tak v IE6 sa nechcela vypisat, akoby neexistovala. v ostatnych browseroch to funguje normalne. Neviete kde by mohol byt v IE6 problem? Dakujem. |
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| Leo Profil |
#2 · Zasláno: 5. 7. 2008, 20:42:00
Co treba misto povidani nejaky (podstatny) kus kodu? Leo
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| tomas3333 Profil |
#3 · Zasláno: 5. 7. 2008, 21:37:06
generovanie captche uz aj s tym session a cookie
<?php
error_reporting(E_ALL);
ob_start();
# image creat
$image = imagecreatetruecolor(200,50);
# background color
$red = rand(200,255);
$green = rand(200,255);
$blue = rand(200,255);
$bgcolor_allocate = imagecolorallocate($image,$red,$green,$blue);
$background = imagefilledrectangle($image, 0,0,200,50, $bgcolor_allocate);
# antialiasing
//$antialias = imageantialias($image, on);
# polygony
for($p=1;$p<=6;$p++) {
$points = Array();
$ptcount = rand(3,6);
for($i=1;$i<=$ptcount;$i++) {
$points[] = rand(-10,210);
$points[] = rand(-5,55);
}
$red = rand(100,255);
$green = rand(100,255);
$blue = rand(100,255);
$linecolor = imagecolorallocate($image,$red,$green,$blue);
$polygon = imagepolygon($image, $points, $ptcount, $linecolor);
}
# text
$string = "";
$fonty = Array("ClinkOutlined", "Dominican", "FairyDust", "Pointy", "SubwayShadow");
for($i=1;$i<=5;$i++) {
$red = rand(0,200);
$green = rand(0,200);
$blue = rand(0,90);
$sel_chars = Array(rand(65,90), rand(97,122), rand(48,57));
$char = chr($sel_chars[array_rand($sel_chars)]);
$charcolor = imagecolorallocate($image,$red,$green,$blue);
$text = imagettftext($image, 30, rand(-15,15), (-15+$i*32), 35, $charcolor, "fonts/".$fonty[array_rand($fonty)].".ttf", $char);
$string .= $char;
}
# session
session_register("captcha");
$_SESSION['captcha'] = $string;
# output
/*if ($image) {
header("Content-type: image/jpeg");
imagejpeg($image);
imagedestroy($image);
}
*/
echo $_SESSION['captcha'];
setcookie("test", "fasfaw", time()+3600);
echo $_COOKIE['test'];
ob_end_flush();
?>
a volanie session v druhom subore <?php //session_start(); echo $_SESSION['captcha']; echo $_COOKIE['test']; ?> |
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Časová prodleva: 16 let
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