| Re: script php with <img scr...../> [message #180224 is a reply to message #180221] |
Thu, 31 January 2013 20:37   |
The Natural Philosoph
Messages: 993
Registered: September 2010
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Senior Member |
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On 31/01/13 18:11, sferreira1979(at)gmail(dot)com wrote:
> Hi,
>
> i'm a portuguese's student and i'm trying to learn php by myself (with books and php.net) but i'm experiencing a problem on one of my test:
> i have two files: registar_mail.php and captcha.php
> captcha.php display an image witch should appear on my file registar_mail.php using
> <img src="captcha.php"/> but the image doesn't appear :(
> i have been looking for a solution in forums but i don't find anything witch works with me... i'm working with netbeans and xampp
>
> ////// script registar_mail.php//////////
> !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=iso-8859-1" />
> <title>MAILING LIST</title>
> <style type="text/css">
> @import url("estilo_mailinglist.css");
> </style>
> </head>
> <body>
>
>
> <?php
> // Ligação à base de dados
> //phpinfo();
> include("ligacao_bd.php");
>
> // verifica se foi clicado o botão de registar
> if(isset($_REQUEST['registar'])) {
>
> // verifica se o código captcha está correto
> if($_SESSION['codigo'] == $_POST['codigo']){
>
> // verifica se o campo de email está por preencher
> if (empty($_POST['email'])) {
> echo "<tr>O campo de endereço de correio eletrónico está vazio! </tr>";
> echo "<tr><a href='registar_mail.php'>Clique para tentar de novo!</a></tr>";
> }
> else {
>
> // verifica se endereço de correio eletrónico esta correto
> $email = $_POST['email'];
> if(filter_var($email, FILTER_VALIDATE_EMAIL)){
>
> // regista o email
> $sql = "INSERT INTO emails(endereco_email, data_registo) VALUES ( '$email' , NOW() ) ";
> $consulta = mysql_query($sql);
>
> echo "<table>";
> echo "<tr>Obrigado por se registar!</tr>";
> echo "<tr><a href='registar_mail.php'>Clique para voltar à página principal!</a></tr>";
>
> } else {
> echo "<tr>O endereço de correio eletrónico não é válido! </tr>";
> echo "<tr><a href='registar_mail.php'>Clique para tentar de novo!</a></tr>";
> } } } }
> ?>
> <table width="800 px" border="0" align="center" class="tabela_geral" cellspacing="0">
> <form id="form_registo" name="form_registo" action="registar_mail.php" method="POST">
> <tr class="tabela_geral">
> <td> Introduza o seu endereço de correio eletrónico para se registar na nossa<i> mailing list</i>!
> </td>
> </tr>
> <tr><td class="tabela_geral">
> Endereço de correio eletrónico: <input type="text" size=40 name="email">
> </td><tr>
> <td>
> <img scr='captcha.php' alt="imagem ausente"/> <input type="text" name="codigo"/>
> <img src="imagens/imagemcaptcha.png" width="230" height="50" alt="imagemcaptcha"/>
>
> </td>
> </tr>
> <td>
> <input type="submit" name="registar" value="Registar">
> <input type="reset" name="apagar" value="Apagar"></td>
> </form>
> </table>
> </body>
> </html>
>
> /////script captcha.php//////////////////
> <?php
> //inicia sessão
> session_start();
Bad move. Nio sessions pelae!
>
> //definição do tipo de imagem a gerar
> header("Content-type:image/png");
>
> //geração da chave
> $chave=rand(0,500);
>
> //codificação da chave e apresentacao de 8 carateres
> $codigo=substr(sha1($chave),0,8);
>
> $_SESSION['codigo']=$codigo;
>
> //definicao imagem e cor
> $imagem= imagecreatefrompng("imagens/imagemcaptcha.png");
> $cores= imagecolorallocate($imagem, 255, 55, 0);
>
> //centrar código na figura
> imagestring($imagem, 5, 75, 20, $codigo, $cores);
>
> //gerar imagem:Outputs or saves a PNG image from the given image.
> imagepng($imagem);
>
> //DESTRUIR IMAGEM
> imagedestroy($imagem);
>
> ?>
>
> could someone help me to understand what is the problem???
>
> thanks :)
>
The simplest php script to send a picture is this
<? php5
header("Content-Type: image/jpeg");
$fh = fopen("myfile.jpg", "r");
fpassthru($fh);
flose($fh)';
// and leave the ?> OUT of things.
// and sessions.
--
Ineptocracy
(in-ep-toc’-ra-cy) – a system of government where the least capable to
lead are elected by the least capable of producing, and where the
members of society least likely to sustain themselves or succeed, are
rewarded with goods and services paid for by the confiscated wealth of a
diminishing number of producers.
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