I need to generate a random value with letters and numbers in PHP, always starting with the letter A and having numbers and letters mixed with the value. It is referring to the "control code" field contained in this script:
<?php require("header.php");?>
<?php require("menu.php");
if(isset($_POST['bt_save_df']))
{
$nome = $_POST['nome'];
$arquivo = $_POST['arquivo'];
$codigo = $_POST['codigo'];
$codcontrol = $_POST['codcontrol'];
$tipo = $_POST['tipo'];
$material = $_POST['material'];
$denominacao = $_POST['denominacao'];
$uploaddir = 'desenhos/arquivos/';
$pastadestino = 'desenhos/arquivos/';
// Pega a extensão do arquivo
$dividir2 = end(explode(".", $_FILES['imagem1']['name']));
// Gera um nome aleatório
$nome = time();
$nome_imagem2 = $nome . '1.' . $dividir2;
$uploadfile = $uploaddir . $nome . '1.' . $dividir2;
if (move_uploaded_file($_FILES['imagem1']['tmp_name'], $uploaddir . $nome_imagem2)) {
}
$arquivo = $pastadestino.$nome_imagem2;
$sql = 'INSERT INTO tbl_desenho (nome, arquivo, codigo, codcontrol, tipo, material, denominacao)';
$sql .= ' VALUES (:nome, :arquivo, :codigo, :codcontrol, :tipo, :material, :denominacao)';
try{
$create = $db->prepare($sql);
$create->bindValue(':nome', $nome, PDO::PARAM_STR);
$create->bindValue(':arquivo', $arquivo, PDO::PARAM_STR);
$create->bindValue(':codigo', $codigo, PDO::PARAM_STR);
$create->bindValue(':codcontrol', $codcontrol, PDO::PARAM_STR);
$create->bindValue(':tipo', $tipo, PDO::PARAM_STR);
$create->bindValue(':material', $material, PDO::PARAM_STR);
$create->bindValue(':denominacao', $denominacao, PDO::PARAM_STR);
if($create->execute() ){
echo '<script type="text/javascript" >
alert( "Registro Cadastrado com Sucesso!"); location.href="ger_arquivos.php";
</script>';
}
} catch (PDOException $e) {
echo "Erro ao Cadastrar Registro! - " . $e->getMessage();
}
}
?>
<!-- BEGIN Main Content -->
<div class="row-fluid">
<div class="span12">
<div class="box">
<div class="box-title">
<h3><i class="icon-reorder"></i> Cadastro de Desenhos</h3>
<div class="box-tool">
<a data-action="collapse" href="#"><i class="icon-chevron-up"></i></a>
<a data-action="close" href="#"><i class="icon-remove"></i></a>
</div>
</div>
<div class="box-content">
<form action="cad_arquivo.php" class="form-horizontal" id="validation-form" method="post" enctype="multipart/form-data">
<div class="control-group">
<label class="control-label" for="nome">Titulo:</label>
<div class="controls">
<div class="span12">
<input type="text" name="nome" id="nome" class="input-xlarge" />
</div>
</div>
</div>
<div class="control-group">
<label class="control-label" for="titulo">Código:</label>
<div class="controls">
<div class="span12">
<input type="text" name="codigo" id="codigo" class="input-xlarge" />
</div>
</div>
</div>
<div class="control-group">
<label class="control-label" for="titulo">Código de Controle:</label>
<div class="controls">
<div class="span12">
<input type="text" name="codcontrol" id="codcontrol" class="input-xlarge" />
</div>
</div>
</div>
<div class="control-group">
<label class="control-label" for="select">Tipo:</label>
<div class="controls">
<div class="span12">
<select name="tipo" id="tipo">
<option value=""> -- Selecione --</option>
<option value="1">Produção</option>
<option value="2">Kits</option>
</select>
</div>
</div>
</div>
<div class="control-group">
<label class="control-label" for="titulo">Material:</label>
<div class="controls">
<div class="span12">
<input type="text" name="material" id="material" class="input-xlarge" />
</div>
</div>
</div>
<div class="control-group">
<label class="control-label" for="titulo">Denominação:</label>
<div class="controls">
<div class="span12">
<input type="text" name="denominacao" id="denominacao" class="input-xlarge" />
</div>
</div>
</div>
<div class="control-group">
<label class="control-label">Arquivo</label>
<div class="controls">
<div class="fileupload fileupload-new" data-provides="fileupload">
<div class="input-append">
<div class="uneditable-input">
<i class="icon-file fileupload-exists"></i>
<span class="fileupload-preview"></span>
</div>
<span class="btn btn-file">
<span class="fileupload-new">Selecione o arquivo</span>
<span class="fileupload-exists">Alterar</span>
<input type="file" class="default" name="imagem1" id="imagem1"/>
</span>
<a href="#" class="btn fileupload-exists" data-dismiss="fileupload">Remove</a>
</div>
</div>
</div>
</div>
<div class="form-actions">
<input type="submit" class="btn btn-primary" name="bt_save_df" value="Salvar">
<a href="ger_arquivos.php"><button type="button" class="btn">Voltar</button></a>
</div>
</form>
</div>
</div>
</div>
</div>
<!-- END Main Content -->
It should be generated automatically, because I will delete the "control code" part of this option.
In case, the variable codcontrol must be supplied automatically with these rules, as I could do, completely eliminating this input?