There have been 8 items by André - MundoNX (Search limited from 13/07/2024)
Posted by
on 29/09/2010, 23:46
in
Artigos, Dicas e Tutoriais de PHP
Posted by
on 02/02/2011, 10:23
in
PHP
<html>
<head>
<title>Captcha</title>
<script type="text/javascript">
//Created / Generates the captcha function
function DrawCaptcha()
{
var a = Math.ceil(Math.random() * 10)+ '';
var b = Math.ceil(Math.random() * 10)+ '';
var c = Math.ceil(Math.random() * 10)+ '';
var d = Math.ceil(Math.random() * 10)+ '';
var e = Math.ceil(Math.random() * 10)+ '';
var f = Math.ceil(Math.random() * 10)+ '';
var g = Math.ceil(Math.random() * 10)+ '';
var code = a + ' ' + b + ' ' + ' ' + c + ' ' + d + ' ' + e + ' '+ f + ' ' + g;
document.getElementById("txtCaptcha").value = code
}
// Validate the Entered input aganist the generated security code function
function ValidCaptcha(){
var str1 = removeSpaces(document.getElementById('txtCaptcha').value);
var str2 = removeSpaces(document.getElementById('txtInput').value);
if (str1 == str2) return true;
return false;
}
// Remove the spaces from the entered and generated code
function removeSpaces(string)
{
return string.split(' ').join('');
}
</script>
</head>
<body onload="DrawCaptcha();">
<table>
<tr>
<td>
Welcome To Captcha<br />
</td>
</tr>
<tr>
<td>
<input type="text" id="txtCaptcha"
style="background-image:url(1.jpg); text-align:center; border:none;
font-weight:bold; font-family:Modern" />
<input type="button" id="btnrefresh" value="Refresh" onclick="DrawCaptcha();" />
</td>
</tr>
<tr>
<td>
<input type="text" id="txtInput"/>
</td>
</tr>
<tr>
<td>
<input id="Button1" type="button" value="Check" onclick="alert(ValidCaptcha());"/>
</td>
</tr>
</table>
</body>
</html>
Posted by
on 01/02/2011, 11:40
in
PHP
<?php
session_start();
class CaptchaSecurityImages {
var $font = 'monofont.ttf';
function generateCode($characters) {
/* list all possible characters, similar looking characters and vowels have been removed */
$possible = '234567890bcdfghjkmnpqrstvwxyz';
$code = '';
$i = 0;
while ($i < $characters) {
$code .= substr($possible, mt_rand(0, strlen($possible)-1), 1);
$i++;
}
return $code;
}
function CaptchaSecurityImages($width='120',$height='40',$characters='6') {
$code = $this->generateCode($characters);
/* font size will be 75% of the image height */
$font_size = $height * 0.75;
$image = @imagecreate($width, $height) or die('Não é possível inicializar fluxo nova imagem GD');
/* set the colours */
$background_color = imagecolorallocate($image, 255, 255, 255);
$text_color = imagecolorallocate($image, 20, 40, 100);
$noise_color = imagecolorallocate($image, 100, 120, 180);
/* generate random dots in background */
for( $i=0; $i<($width*$height)/3; $i++ ) {
imagefilledellipse($image, mt_rand(0,$width), mt_rand(0,$height), 1, 1, $noise_color);
}
/* generate random lines in background */
for( $i=0; $i<($width*$height)/150; $i++ ) {
imageline($image, mt_rand(0,$width), mt_rand(0,$height), mt_rand(0,$width), mt_rand(0,$height), $noise_color);
}
/* create textbox and add text */
$textbox = imagettfbbox($font_size, 0, $this->font, $code) or die('Erro na função imagettfbbox');
$x = ($width - $textbox[4])/2;
$y = ($height - $textbox[5])/2;
imagettftext($image, $font_size, 0, $x, $y, $text_color, $this->font , $code) or die('Erro na função imagettftext');
/* output captcha image to browser */
header('Content-Type: image/jpeg');
imagejpeg($image);
imagedestroy($image);
$_SESSION['security_code'] = $code;
}
}
$width = isset($_GET['width']) ? $_GET['width'] : '120';
$height = isset($_GET['height']) ? $_GET['height'] : '40';
$characters = isset($_GET['characters']) && $_GET['characters'] > 1 ? $_GET['characters'] : '6';
$captcha = new CaptchaSecurityImages($width,$height,$characters);
?>
<?php
session_start();
if( isset($_POST['submit'])) {
if( $_SESSION['security_code'] == $_POST['security_code'] && !empty($_SESSION['security_code'] ) ) {
// Insert you code for processing the form here, e.g emailing the submission, entering it into a database.
echo 'Thank you. Your message said "'.$_POST['message'].'"';
unset($_SESSION['security_code']);
} else {
// Insert your code for showing an error message here
echo 'Sorry, you have provided an invalid security code';
}
} else {
?>
<form action="form.php" method="post">
<img src="CaptchaSecurityImages.php?width=100&height=40&characters=5" /><br />
<label for="security_code">Security Code: </label><input id="security_code" name="security_code" type="text" /><br />
<input type="submit" name="submit" value="Submit" />
</form>
<?php
}
?><form action="?pg=comentarios" method=post enctype="multipart/form-data" name=formMaker onsubmit="return validar(this)">
<input name="acao" type="hidden" value="add_comentario">
<input name="id" type="hidden" value="<? echo $id?>">
<table border="0" align="center" cellpadding="2" cellspacing="0">
<tr valign=middle>
<td align=right style="border-bottom:1px solid #cccccc;border-top:1px solid #cccccc;">Nome:</td>
<td width="300" style="border-bottom:1px solid #cccccc;border-top:1px solid #cccccc;">
<input name="nome" type="text" size="45"></td>
</tr>
<tr valign=middle>
<td align=right style="border-bottom:1px solid #cccccc">Comentário</td>
<td style="border-bottom:1px solid #cccccc"><textarea name="comentarios" cols="44" rows="5" id="comentarios"></textarea></td>
</tr>
<tr valign=middle>
<td align=right style="border-bottom:1px solid #cccccc">Código de Segurança:</td>
<td style="border-bottom:1px solid #cccccc"><img src="estrutura/captcha/CaptchaSecurityImages.php?width=100&height=40&characters=5" /> <input id="security_code" name="security_code" type="text" /></td>
</tr>
<tr align="center" valign=middle>
<td colspan="2"><input type=submit name=Submit value="Cadastrar">
<input type=reset name=Submit2 value="Limpar"></td>
</tr>
</table>
</form>
<?
}
if($acao == "add_comentario"){
$sql = "INSERT INTO noticias_comentarios VALUES ('', '$id', '$nome', '$cidade', '$data', '$comentarios')";
$sql = mysql_query($sql);
//echo $sql;
echo "
<br>
<br>
<center><h4>Comentário enviado com Sucesso!</h4></center>
<meta http-equiv='refresh' content='2;URL=?pg=ler_noticia&id=$id'>
";
}
?>
Posted by
on 04/02/2011, 08:31
in
PHP
Posted by
on 04/03/2010, 21:38
in
Vagas
Posted by
on 27/09/2010, 11:52
in
PHP
Posted by
on 25/09/2010, 13:07
in
PHP
$fotos = array_diff( scandir( $dir ), array( ".", ".." ) );
$fotosSize = count( $fotos );
for ( $i = 0; $i < $fotosSize; $i++ )
{
echo "photo_urls[" . ($i + 1) . "] = \"" . $dir . '/' . $fotos[ $i ] . "\"; photo_captions[" . ($i + 1 ) . "] = \"\";\n";
}
Posted by
on 16/03/2010, 11:05
in
HTML, CSS e Metodologias
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<style type="text/css">
/* Default Theme CSS */
html{
}
*{margin:0;outline:0;list-style:none}
a:link{text-decoration:none;color: #000000;}
a:visited{text-decoration:none;color: #000000}
a:hover{text-decoration:underline}
.clear{clear:both !important}
.nobd{border:none !important}
body {
margin: 0;
font-family: Verdana;
font-size: 11px;
}
/* MENU */
#menu{
clear:both;
float:left;
padding:0 5px 10px;
width:160px
}
#menu li{
border-bottom: 1px solid #000;
padding: 1px;
}
#menu li a strong{
color:#F6821F;
}
/* Menu 2 */
.menutitle{
cursor:pointer;
margin-bottom: 5px;
color:#000000;
width:140px;
padding:2px;
text-align:left;
font-weight:bold;
/*/*/border:1px none #000000;/* */
}
-->
</style></head>
<body>
<div id="menu">
<div>
<ul>
<li>
<div class="menutitle" ><a href="cadastro.asp?form=1">Imóveis Rurais</a></div>
</li>
<li><div class="menutitle"><a href="cadastro.asp?form=2">Produtos Agrícolas</a></div>
</li>
<li>
<div class="menutitle"><a href="cadastro.asp?form=3">Animais Corte Leite</a></div>
</li>
<li>
<div class="menutitle"><a href="cadastro.asp?form=4">Máquinas Usadas</a></div>
</li>
</ul>
</div>
</div>
</body>
</html>
