本文整理匯總了PHP中captcha::image方法的典型用法代碼示例。如果您正苦於以下問題：PHP captcha::image方法的具體用法？PHP captcha::image怎麽用？PHP captcha::image使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類captcha的用法示例。
在下文中一共展示了captcha::image方法的6個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的PHP代碼示例。
示例1: action_image
public function action_image()
{
$token = $this->request->param('id');
//removig the & we add to refresh the image.
if (($amp_pos = strpos($token, '&')) > 1) {
$token = substr($token, 0, $amp_pos);
}
$captcha = new captcha();
die($captcha->image($token));
}示例2: form
function form($title = "→ retype that here", $more = "<small>Enter the correct letters and numbers from the image into the text box. This small test serves as access restriction against malicious bots. Simply reload the page if this graphic is too hard to read.</small>")
{
$pw = captcha::mkpass();
$hash = captcha::hash($pw);
$maxsize = strpos("MSIE", $_SERVER["HTTP_USER_AGENT"]) ? 3000 : 6000;
@header("Vary: User-Agent");
$img = "data:image/jpeg;base64," . base64_encode(captcha::image($pw, 200, 60, CAPTCHA_INVERSE, $maxsize));
$alt = htmlentities(captcha::textual_riddle($pw));
$html = '<table border="0" summary="captcha input"><tr>' . '<td><img name="captcha_image" id="captcha_image" src="' . $img . '" height="60" width="200" alt="' . $alt . '" /></td>' . '<td>' . $title . '<br/><input name="captcha_hash" type="hidden" value="' . $hash . '" />' . '<input name="captcha_input" type="text" size="7" maxlength="16" style="height:46px; font-size:34px; font-weight:450;" />' . '</td><td>' . $more . '</td>' . '</tr></table>';
$base = "http://{$_SERVER['SERVER_NAME']}:{$_SERVER['SERVER_PORT']}/" . substr(realpath(__FILE__), strlen($_SERVER["DOCUMENT_ROOT"]));
$html .= <<<END
<script language="Javascript"><!--
if (/Microsoft/.test(navigator.appName)) {
var img = document.captcha_image;
img.src = "{$base}?_ddu=" + img.src.substr(23);
} //--></script>
END;
$html = "<div class=\"captcha\">{$html}</div>";
return $html;
}示例3: form
function form()
{
#-- stop if user already verified
if (!empty($_COOKIE[CAPTCHA_COOKIE]) && $_COOKIE[CAPTCHA_COOKIE] == (int) (time() / 1000000)) {
return "";
}
$title = translate('Enter Characters Seen in Graphic');
$more = translate('Enter the correct letters and numbers from the image into the text box...');
#-- prepare image text
$pw = captcha::mkpass();
$hash = captcha::hash($pw);
//$alt = htmlentities(captcha::textual_riddle($pw));
$alt = $title;
#-- image
$img = captcha::image($pw, 200, 60, CAPTCHA_INVERSE, CAPTCHA_MAXSIZE);
if (CAPTCHA_DATA_URLS && !strpos('MSIE', $_SERVER['HTTP_USER_AGENT'])) {
$img_fn = 'data:image/jpeg;base64,' . base64_encode($img);
} else {
$img_fn = CAPTCHA_TEMP_DIR . '/' . captcha::store_image($img) . '.jpg';
}
//echo $img_fn;
#-- emit html form
$html = '
<div class="captcha">
<fieldset style="width:420px">
<legend>' . translate('Challenge/Response') . '</legend>
<table border="0" summary="captcha input" width="400px"><tr>
<td colspan="2"><small>' . $more . '</small></td></tr><tr>
<td><img name="captcha_image" id="captcha_image" src="' . $img_fn . '" height="60" width="200" alt="' . $alt . '" /></td>
<td>' . $title . '<br /><input name="captcha_hash" type="hidden" value="' . $hash . '" />
<input name="captcha_input" type="text" size="7" maxlength="16" style="height:46px;font-size:34px; font-weight:bold;" />
</td></tr></table>
</fieldset>
</div>
';
return $html;
}示例4: Copyright
<?php
/*
[Destoon B2B System] Copyright (c) 2008-2013 Destoon.COM
This is NOT a freeware, use is subject to license.txt
*/
define('DT_NONUSER', true);
require '../common.inc.php';
check_referer() or exit;
if ($DT_BOT) {
dhttp(403);
}
$session = new dsession();
require DT_ROOT . '/include/captcha.class.php';
$do = new captcha();
$do->font = DT_ROOT . '/file/font/' . $DT['water_font'];
if ($DT['captcha_cn']) {
$do->cn = is_file($do->font);
}
$do->ip = $DT_IP;
if ($action == 'question') {
$id = isset($id) ? trim($id) : 'questionstr';
$do->question($id);
} else {
if ($DT['captcha_chars']) {
$do->chars = trim($DT['captcha_chars']);
}
$do->image();
}示例5:
<?php
include 'captcha.php';
captcha::image($_GET['salt']);示例6: refreshCaptcha
<script>
function refreshCaptcha(target) {
var req = new XMLHttpRequest();
req.open("POST", window.location, true);
req.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
req.onreadystatechange = function() {
if(req.readyState == 4 && req.status == 200) {
target.src = req.responseText;
}
}
req.send("rCaptcha=true");
}
</script>
<form method="post" autocomplete="off">
<fieldset>
<legend>PHP Captcha</legend>
<input type="text" name="code" placeholder="Captcha Code" /><br/>
<img src="<?php
echo captcha::image();
?>
" onclick="refreshCaptcha(this)" title="click to refresh" /><br/>
<input type="submit" value="Check" /><br/>
</fieldset>
</form>