本文整理汇总了PHP中captcha::image方法的典型用法代码示例。如果您正苦于以下问题：PHP captcha::image方法的具体用法？PHP captcha::image怎么用？PHP captcha::image使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类captcha的用法示例。
在下文中一共展示了captcha::image方法的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的PHP代码示例。
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>