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[英]PHP/MySQL: how to prevent insertion of a row with all columns = NULL?
[英]PHP + MYSQL inserting all columns null
我在add.html中有一个表单,我正在尝试在mysql表中添加具有该表单值的行,但是新行中添加了除id(PK,AI)以外的所有NULL列。 我以为$ _POST变量可能有任何问题...然后我检查了
if(isset($_POST['nome']))
$nome=mysqli_real_escape_string($db,$_POST['nome']);
else
$nome="nomevazio";
然后,如果$ _POST ['nome']为空,则表中的$ nome将为“ nomevazio”,但不是。 仍然插入所有列为空的行。
有形式的html代码:
<form class="col s12" id="myForm" action="addparceiro.php" method="POST" >
<div class="row">
<div class="input-field col s6">
<i class="mdi-action-account-circle prefix"></i>
<input id="name" type="text" class="validate" name="nome">
<label for="name">Nome do Parceiro</label>
</div>
<div class="input-field col s6">
<i class="mdi-communication-email prefix"></i>
<input id="email" type="email" class="validate" name="email">
<label for="email">Email</label>
</div>
</div>
<div class="row">
<div class="input-field col s12">
<i class="mdi-communication-location-on prefix"></i>
<input id="address" type="text" class="validate" name="endereco">
<label for="address">Endereço</label>
</div>
</div>
<div class="row">
<div class="input-field col s12">
<i class="mdi-action-settings-phone prefix"></i>
<input id="phone" type="number" class="validate" name="telefone">
<label for="phone">Telefone</label>
</div>
</div>
<div class="row">
<div class="input-field col s12">
<i class="mdi-action-restore prefix"></i>
<input type="date" class="datepicker" name="data">
<label for="date">Data de cadastro</label>
</div>
</div>
<div class="row">
<div class="input-field col s12">
<i class="mdi-action-lock prefix"></i>
<input id="login" type="text" class="validate" name="login">
<label for="login">Login</label>
</div>
</div>
<div class="row">
<div class="input-field col s12">
<i class="mdi-communication-vpn-key prefix"></i>
<input id="password" type="password" class="validate" name="senha">
<label for="password">Senha</label>
</div>
</div>
<div class="row">
<div class="input-field col s12 center">
<a onclick="Materialize.toast('CADASTRO REALIZADO COM SUCESSO', 4000)">
<button id="envia" class="btn waves-effect waves-light" type="submit" value="submit form" name="action">Enviar
<i class="mdi-content-send right"></i>
</button>
</a>
</div>
</div>
</form>
还有addparceiro.php代码
<?php
include("config.php");
session_start();
// if(isset($_SESSION['login_user'])
// {
if($_SERVER["REQUEST_METHOD"] == "POST")
{
// username and password sent from Form
if(isset($_POST['nome']))
$nome=mysqli_real_escape_string($db,$_POST['nome']);
else
$nome="nomevazio";
$email=mysqli_real_escape_string($db,$_POST['email']);
$endereco=mysqli_real_escape_string($db,$_POST['endereco']);
$telefone=mysqli_real_escape_string($db,$_POST['telefone']);
$data=mysqli_real_escape_string($db,$_POST['data']);
$login=mysqli_real_escape_string($db,$_POST['login']);
$senha=mysqli_real_escape_string($db,$_POST['senha']);
$sql="INSERT INTO TB_ESTABELECIMENTOS (nome, endereco, email, telefone, data, login, senha) VALUES (nome='$nome', endereco='$endereco', email='$email', telefone='$telefone', data='$data', login='$login', senha='$senha')";
$result=mysqli_query($db,$sql);
if($result)
{
include("lista.html");
}
else
{
echo
'
<script>
alert(\'Não foi possível cadastrar este parceiro! Tente novamente mais tarde ou contate a equipe técnica!\');
</script>
';
include("add.html");
}
}
?>
我认为您的INSERT语法有些偏离。 刚在我的服务器上尝试了相同的语法,并且所有内容都插入了NULL。
改成:
"INSERT INTO TB_ESTABELECIMENTOS
(nome, endereco, email, telefone, data, login, senha)
VALUES
('$nome', '$endereco', '$email', '$telefone', '$data', '$login', '$senha');
在这里查看各种INSERT语法: http : //www.w3schools.com/sql/sql_insert.asp
您的语法为假:
$sql="INSERT INTO TB_ESTABELECIMENTOS (nome, endereco, email, telefone, data, login, senha) VALUES ('$nome', '$endereco', '$email', '$telefone','$data', '$login', '$senha')";
另外,您应该使用准备好的语句。 并且您应该检查错误。
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