Php sql未插入到数据库中
我知道这是一个非常常见的问题,但我只是在寻找帮助,以确定我的代码有什么问题。我正在尝试创建我的数据库,以便管理员可以使用表单中的图片创建新的营地。我的网站似乎工作正常,当我测试它时,如果没有填写值,它会给我失败消息,如果没有填写所需的值,它会给我成功消息,但它不会将信息传递到我的数据库。任何帮助都将不胜感激 另外,我为自己是一个非常糟糕的程序员而道歉 相关网站代码:Php sql未插入到数据库中,php,html,mysql,Php,Html,Mysql,我知道这是一个非常常见的问题,但我只是在寻找帮助,以确定我的代码有什么问题。我正在尝试创建我的数据库,以便管理员可以使用表单中的图片创建新的营地。我的网站似乎工作正常,当我测试它时,如果没有填写值,它会给我失败消息,如果没有填写所需的值,它会给我成功消息,但它不会将信息传递到我的数据库。任何帮助都将不胜感激 另外,我为自己是一个非常糟糕的程序员而道歉 相关网站代码: <section id="SIGNUP" style="text-align: center;" class="main-c
<section id="SIGNUP" style="text-align: center;" class="main-container">
<div class="container" style="width:100%;">
<h2 style="text-align:center; font-size:50px;">Add a New Campsite</h2>
<form id="newsletter" <form class="signup-form" action="includes/fetch.inc.php" method="POST" enctype="multipart/form-data" style="padding-top:50px; padding-bottom:50px; border-bottom:#e8491d 3px solid; border-top:#e8491d 3px solid;">
<input type="integer" name="length" style="padding:4px; height:5%; width:25%; text-align:center; font-size:30px;" placeholder="Site Length"><br>
<input type="integer" name="width" style="padding:4px; height:5%; width:25%; text-align:center; font-size:30px;" placeholder="Site Width"><br>
<label for="fire">Fire Pit: </label><input type="checkbox" name="fire" value="No">
<label for="electric">Electricity: </label><input type="checkbox" name="electric" value="No">
<label for="sewer">Sewage: </label><input type="checkbox" name="sewer" value="No"></br>
<input type="decimal" name="price" style="padding:4px; height:5%; width:25%; text-align:center; font-size:30px;" placeholder="Price"><br>
<input type="file" id="upload_file" name="upload_file[]" onchange="preview_image();" multiple/>
<input type="submit" name="submit_image" value="Upload Image"/>
</form>
<div id="image_preview"></div>
</div>
</section>;
添加一个新的营地
如果没有看到所有的代码(例如,你的需要什么?_once(“dbh.inc.php”);
正在做什么)就很难说,但是我想冒险猜测一下,php和/或MySQL会抛出一个错误
要使代码更加健壮,请添加检查以确保正确执行查询:
mysqli_query($conn, $sql);
if (!mysqli_query($conn, $sql)) {
error_log("SQL query error: " . mysqli_error($conn));
}
然后检查您的PHP错误日志,您应该可以在那里看到结果
通过检查php.ini
和mysql.cnf
文件,可以找到错误日志文件。使用Linux时的常见默认位置:
/var/log/php_errors.log
/var/log/mysqld.log
如果您使用的是运行cPanel之类的主机提供程序,您应该可以在其中找到对日志文件的访问权限
您可以将错误打印到屏幕上,以便于调试,但出于安全原因,生产代码中不建议这样做。一旦您对访问错误日志感到满意,您就不必这样做了,但为了记录:
mysqli_query($conn, $sql);
if (!mysqli_query($conn, $sql)) {
print "Error: " . mysqli_error($conn);
error_log("SQL query error: " . mysqli_error($conn));
}
如果没有看到所有的代码(例如,你的需要什么?_once(“dbh.inc.php”);
正在做什么)就很难说,但是我想冒险猜测一下,php和/或MySQL会抛出一个错误
要使代码更加健壮,请添加检查以确保正确执行查询:
mysqli_query($conn, $sql);
if (!mysqli_query($conn, $sql)) {
error_log("SQL query error: " . mysqli_error($conn));
}
然后检查您的PHP错误日志,您应该可以在那里看到结果
通过检查php.ini
和mysql.cnf
文件,可以找到错误日志文件。使用Linux时的常见默认位置:
/var/log/php_errors.log
/var/log/mysqld.log
如果您使用的是运行cPanel之类的主机提供程序,您应该可以在其中找到对日志文件的访问权限
您可以将错误打印到屏幕上,以便于调试,但出于安全原因,生产代码中不建议这样做。一旦您对访问错误日志感到满意,您就不必这样做了,但为了记录:
mysqli_query($conn, $sql);
if (!mysqli_query($conn, $sql)) {
print "Error: " . mysqli_error($conn);
error_log("SQL query error: " . mysqli_error($conn));
}
如果将fire
、sewer
和electric
的字段值更改为默认值为1
(一)的整数,则可以简化php中的一些逻辑
insert
语句实际上应该使用prepared语句来避免sql注入
我还强烈建议您使用css
来控制表单的外观,而不是您这里的内联样式-它使代码更精简、更易于阅读,更重要的是更易于更改
下面的代码都在一个页面上供我测试-您需要将html和php拆分为两个组成页面,就像您最初使用的一样~很抱歉对其进行了如此多的更改,但我认为您现在应该能够从中获得工作
<?php
if( $_SERVER['REQUEST_METHOD']=='POST' && isset( $_POST['length'], $_POST['width'], $_POST['price'] ) ){
try{
require_once("dbh.inc.php");
function uploaderror( $code ){
switch( $code ) {
case UPLOAD_ERR_INI_SIZE: return "The uploaded file exceeds the upload_max_filesize directive in php.ini";
case UPLOAD_ERR_FORM_SIZE: return "The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form";
case UPLOAD_ERR_PARTIAL: return "The uploaded file was only partially uploaded";
case UPLOAD_ERR_NO_FILE: return "No file was uploaded";
case UPLOAD_ERR_NO_TMP_DIR: return "Missing a temporary folder";
case UPLOAD_ERR_CANT_WRITE: return "Failed to write file to disk";
case UPLOAD_ERR_EXTENSION: return "File upload stopped by extension";
default: return "Unknown upload error";
}
}
$filefield='upload_file';
$status=false;
$sql = "insert into `campsites` ( `length`, `width`, `fire`, `sewer`, `electric`, `price`) values (?,?,?,?,?,?);";
$length=filter_input( INPUT_POST,'length',FILTER_SANITIZE_NUMBER_INT );
$width=filter_input( INPUT_POST,'width',FILTER_SANITIZE_NUMBER_INT );
$price=filter_input( INPUT_POST,'price',FILTER_SANITIZE_NUMBER_INT );
$fire=isset( $_POST['fire'] ) ? filter_input( INPUT_POST,'fire',FILTER_SANITIZE_NUMBER_INT ) : 0;
$sewer=isset( $_POST['sewer'] ) ? filter_input( INPUT_POST,'sewer',FILTER_SANITIZE_NUMBER_INT ) : 0;
$electric=isset( $_POST['electric'] ) ? filter_input( INPUT_POST,'electric',FILTER_SANITIZE_NUMBER_INT ) : 0;
if( !$length or !$width or !$price ){
exit( header("Location: ../admin.php?null-value") );
}
$stmt=$conn->prepare( $sql );
if( !$stmt ) throw new Exception('Failed to prepare sql statement');
$stmt->bind_param('iiiiii', $length, $width, $fire, $sewer, $electric, $price );
if( isset( $_FILES[ $filefield ] ) ){
foreach( $_FILES[ $filefield ]['name'] as $i => $name ) {
if( !empty( $_FILES[ $filefield ]['tmp_name'][$i] ) ) {
$name = $_FILES[ $filefield ]['name'][$i];
$size = $_FILES[ $filefield ]['size'][$i];
$type = $_FILES[ $filefield ]['type'][$i];
$tmp = $_FILES[ $filefield ]['tmp_name'][$i];
$err = $_FILES[ $filefield ]['error'][$i];
$target="images/{$name}";
#$target='c:/temp/fileuploads/1/'.$name;
if( is_uploaded_file( $tmp ) ){
$bytes = move_uploaded_file( $tmp, $target );
} else {
throw new Exception( sprintf('Error: %s',uploaderror( $err ) ) );
}
}
}
}
$result = $stmt->execute();
$stmt->close();
$conn->close();
exit( header( "Location: ../admin.php?signup=$result" ) );
}catch( Exception $e ){
echo $e->getMessage();
}
}
?>
<!doctype html>
<html>
<head>
<meta charset='utf-8' />
<title></title>
</head>
<body>
<section id="SIGNUP" class="main-container">
<div class="container">
<h2>Add a New Campsite</h2>
<form class="signup-form" method="POST" enctype="multipart/form-data">
<input type="number" name="length" placeholder="Site Length"><br>
<input type="number" name="width" placeholder="Site Width"><br>
<label for="fire">Fire Pit: </label><input type="checkbox" name="fire" value=1>
<label for="electric">Electricity: </label><input type="checkbox" name="electric" value=1>
<label for="sewer">Sewage: </label><input type="checkbox" name="sewer" value=1></br>
<input type="number" name="price" placeholder="Price"><br>
<input type="file" id="upload_file" name="upload_file[]" onchange="preview_image();" multiple/>
<input type="submit" name="submit_image" value="Upload Images & Save"/>
</form>
<div id="image_preview"></div>
</div>
</section>
</body>
</html>
并修改了上述代码
<?php
if( $_SERVER['REQUEST_METHOD']=='POST' && isset( $_POST['length'], $_POST['width'], $_POST['price'] ) ){
try{
$redirect=false;
$message=false;
$filefield='upload_file';
$status=false;
$imgdir='c:/temp/fileuploads/1/';
$results=array();
#require_once("dbh.inc.php");
$dbhost = 'localhost';
$dbuser = 'root';
$dbpwd = 'xxx';
$dbname = 'xxx';
$conn = new mysqli( $dbhost, $dbuser, $dbpwd, $dbname );
function uploaderror( $code ){
switch( $code ) {
case UPLOAD_ERR_INI_SIZE: return "The uploaded file exceeds the upload_max_filesize directive in php.ini";
case UPLOAD_ERR_FORM_SIZE: return "The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form";
case UPLOAD_ERR_PARTIAL: return "The uploaded file was only partially uploaded";
case UPLOAD_ERR_NO_FILE: return "No file was uploaded";
case UPLOAD_ERR_NO_TMP_DIR: return "Missing a temporary folder";
case UPLOAD_ERR_CANT_WRITE: return "Failed to write file to disk";
case UPLOAD_ERR_EXTENSION: return "File upload stopped by extension";
default: return "Unknown upload error";
}
}
$sql = "insert into `campsites` ( `length`, `width`, `fire`, `sewer`, `electric`, `price`) values (?,?,?,?,?,?);";
$sql_image = 'insert into `campsite_images` (`cid`,`photo`) values (?,?)';
$length=filter_var( filter_input( INPUT_POST,'length',FILTER_SANITIZE_NUMBER_INT ), FILTER_VALIDATE_FLOAT );
$width=filter_var( filter_input( INPUT_POST,'width',FILTER_SANITIZE_NUMBER_INT ), FILTER_VALIDATE_FLOAT );
$price=filter_var( filter_input( INPUT_POST,'price',FILTER_SANITIZE_NUMBER_INT ), FILTER_VALIDATE_FLOAT );
$fire=isset( $_POST['fire'] ) ? filter_input( INPUT_POST,'fire',FILTER_SANITIZE_NUMBER_INT ) : 0;
$sewer=isset( $_POST['sewer'] ) ? filter_input( INPUT_POST,'sewer',FILTER_SANITIZE_NUMBER_INT ) : 0;
$electric=isset( $_POST['electric'] ) ? filter_input( INPUT_POST,'electric',FILTER_SANITIZE_NUMBER_INT ) : 0;
if( !$length or !$width or !$price ){
if( $redirect ) exit( header( "Location: ../admin.php?null-value" ) );
}
if( !is_numeric( $length ) or !is_numeric( $width ) or !is_numeric( $price ) ){
throw new Exception('Non-Float values for length, width and price are not allowed.');
}
$stmt=$conn->prepare( $sql );
if( !$stmt ) throw new Exception('Failed to prepare sql statement');
$stmt->bind_param('iiiiii', $length, $width, $fire, $sewer, $electric, $price );
$stmt_image=$conn->prepare( $sql_image );
if( !$stmt_image )throw new Exception('Unable to prepare image sql statement');
$stmt_image->bind_param('is', $id, $target );
/* insert record for campsite */
$results[]=$stmt->execute();
/* Get the ID for the campsite that was just added */
$id=$stmt->insert_id;
/* Process any & all images that are uploaded */
if( isset( $_FILES[ $filefield ] ) ){
foreach( $_FILES[ $filefield ]['name'] as $i => $name ) {
if( !empty( $_FILES[ $filefield ]['tmp_name'][$i] ) ) {
$name = $_FILES[ $filefield ]['name'][$i];
$size = $_FILES[ $filefield ]['size'][$i];
$type = $_FILES[ $filefield ]['type'][$i];
$tmp = $_FILES[ $filefield ]['tmp_name'][$i];
$err = $_FILES[ $filefield ]['error'][$i];
$target = $imgdir . $name;
if( is_uploaded_file( $tmp ) ){
$bytes = move_uploaded_file( $tmp, $target );
$results[]=$stmt_image->execute();
} else {
throw new Exception( sprintf('Error: %s', uploaderror( $err ) ) );
}
}
}
$stmt_image->close();
}
$result=new stdClass;
$result->failed=0;
$result->success=0;
array_walk( $results, function($value){
global $result;
if( $value==0 )$result->failed++;
if( $value==1 )$result->success++;
});
$message=sprintf( 'Record(s) added - Failed:%d, Success:%d', $result->failed, $result->success );
$stmt->close();
$conn->close();
if( $redirect ) exit( header( "Location: ../admin.php?signup=true" ) );
}catch( Exception $e ){
$message=$e->getMessage();
}
}
?>
<!doctype html>
<html>
<head>
<meta charset='utf-8' />
<title>Campsite booking form</title>
<style>
html,html *{
font-family:calibri,verdana,arial;
box-sizing:border-box;
}
#signup{
text-align: center;
width:50%;
float:none;
margin:0 auto;
}
h2{text-align:center; font-size:4rem;}
h3{font-size:0.95rem;color:green;}
input{padding:1rem;}
input[type='text'],
input[type='number']{
float:none;
width:calc(33% - 1rem );
margin:0.5rem auto;
}
fieldset{
width:90%;
border:none;
margin:1rem auto;
float:none;
}
input[type='file']{
width: 0.1px;
height: 0.1px;
opacity: 0;
overflow: hidden;
position: absolute;
z-index: -1;
}
input[type='file'] + label{
font-weight: 700;
color: black;
background-color: #E5E4E2;
display: inline-block;
border:1px solid black;
padding:0.25rem;
width:90%;
cursor:pointer;
float:none;
margin:0 auto;
}
label[for='upload_file']:hover {
background: rgba(240,182,198,0.75)!important;
}
input[type='submit']{
width:90%;
float:none;
margin:1rem auto;
}
#services label{
padding:1rem;
display:inline-block;
clear:none;
float:none;
margin:0 auto;
width:calc(33% - 5px);!important;
}
ul#list{font-size:0.7rem;}
#image_preview img{margin:0.25rem;padding:0.25rem;outline:1px dotted gray;}
</style>
<script>
/* self-executing anonymous function */
(function(){
var getaspect=function(w,h){
w=parseFloat(w);
h=parseFloat(h);
if( w==h )return 1;
else if( w > h ) return 2;
else if( h > w ) return 3;
else return 4;
}
var getratio=function(w,h){
return parseFloat(w) / parseFloat(h);
}
var roundNumber=function(i,p){
return Math.floor( i * Math.pow( 10, p ) ) / Math.pow( 10, p );
};
var getfilesize=function(i){
var kb=1024;
var mb=Math.pow(kb,2);
var gb=Math.pow(kb,3);
var tb=Math.pow(kb,4);
if( i > 0 && i < kb ) return i+'bytes';
else if( i >= kb && i < mb ) return roundNumber( Math.abs( i / kb ),2 ) + 'Kb';
else if( i >= mb && i < gb ) return roundNumber( Math.abs( i / mb ),2 ) + 'Mb';
else if( i >= gb && i < tb ) return roundNumber( Math.abs( i / gb ),2 ) + 'Gb';
else if( i >= tb ) return roundNumber( Math.abs( i / tb ),2 ) + 'Tb';
};
var size=150;
var options={
capture:false,
once:false,
passive:true
};
document.addEventListener('DOMContentLoaded',function(e){
var oImages=[];
var oInput=document.getElementById('upload_file');
var oPreview=document.getElementById('image_preview');
var oList=document.getElementById('list');
oInput.addEventListener('change',function(event){
var files=this.files;
for( var i=0; i < files.length; i++ ){
var file=files.item( i );
var obj={
'file':file,
'name':file.name,
'size':file.size,
'lastModified':file.lastModified,
'lastModifiedDate':file.lastModifiedDate,
'type':file.type
};
oImages.push( obj );
var li=document.createElement('li');
li.dataset.name=obj.name;
li.dataset.lastmod=obj.lastModifiedDate;
li.dataset.type=obj.type;
li.innerHTML=obj.name + ' [ '+getfilesize( obj.size )+' ]';
oList.appendChild( li );
/********************/
/* Show a preview */
var img = document.createElement('img');
img.file=obj.file;
img.dataset.name=obj.name;
img.title=obj.name;
img.onload=function(event){
var ratio=getratio( this.width,this.height );
switch( getaspect( this.width, this.height ) ){
case 1:
this.width=size;
this.height=size;
break;
case 2:
this.width=size;
this.height=size / ratio;
break;
case 3:
this.height=size;
this.width=size * ratio;
break;
case 4:
alert('error')
break;
}
window.URL.revokeObjectURL( this.src );
};
/* add new thumbnail to the DOM */
oPreview.appendChild( img );
/* read the file and set the image source */
var reader = new FileReader();
reader.onload = (function(a) { return function(e) { a.src = e.target.result; }; })( img );
reader.readAsDataURL( obj.file );
}
}.bind( oInput ),options );
},options );
})();
</script>
</head>
<body>
<section id='signup' class='main-container'>
<div class='container'>
<h2>Add a New Campsite</h2>
<?php
if( $message ){
echo "<h3>$message</h3>";
}
?>
<form class='signup-form' method='POST' enctype='multipart/form-data'>
<fieldset id='dimensions'>
<input type='number' name='length' placeholder='Site Length' step=1 min=1 max=1000 />
<input type='number' name='width' placeholder='Site Width' step=1 min=1 max=1000 />
<input type='number' name='price' placeholder='Price' step='0.5' min=0 max=1000 />
</fieldset>
<fieldset id='services'>
<label for='fire'>Fire Pit: <input type='checkbox' name='fire' value=1></label>
<label for='electric'>Electricity: <input type='checkbox' name='electric' value=1></label>
<label for='sewer'>Sewage: <input type='checkbox' name='sewer' value=1></label>
</fieldset>
<fieldset id='files'>
<input type='file' id='upload_file' name='upload_file[]' multiple/>
<label for='upload_file' title='Optional: Upload photos'>
<svg xmlns='http://www.w3.org/2000/svg' width='20' height='17' viewBox='0 0 20 17'>
<path d='M10 0l-5.2 4.9h3.3v5.1h3.8v-5.1h3.3l-5.2-4.9zm9.3 11.5l-3.2-2.1h-2l3.4 2.6h-3.5c-.1 0-.2.1-.2.1l-.8 2.3h-6l-.8-2.2c-.1-.1-.1-.2-.2-.2h-3.6l3.4-2.6h-2l-3.2 2.1c-.4.3-.7 1-.6 1.5l.6 3.1c.1.5.7.9 1.2.9h16.3c.6 0 1.1-.4 1.3-.9l.6-3.1c.1-.5-.2-1.2-.7-1.5z'></path>
</svg> <span>Choose a file…</span>
</label>
</fieldset>
<fieldset id='bttns'>
<input type='submit' name='submit_image' value='Upload Images & Save'/>
</fieldset>
</form>
<div id='image_preview'></div>
<ul id='list'></ul>
</div>
</section>
</body>
</html>
露营地预订表
html,html*{
字体系列:calibri、verdana、arial;
框大小:边框框;
}
#报名{
文本对齐:居中;
宽度:50%;
浮动:无;
保证金:0自动;
}
h2{文本对齐:居中;字体大小:4rem;}
h3{字体大小:0.95rem;颜色:绿色;}
输入{padding:1rem;}
输入[type='text'],
输入[type='number']{
浮动:无;
宽度:钙(33%-1rem);
保证金:0.5雷姆自动;
}
字段集{
宽度:90%;
边界:无;
保证金:1rem自动;
浮动:无;
}
输入[type='file']{
宽度:0.1px;
高度:0.1px;
不透明度:0;
溢出:隐藏;
位置:绝对位置;
z指数:-1;
}
输入[type='file']+标签{
字号:700;
颜色:黑色;
背景色:#E5E4E2;
显示:内联块;
边框:1px纯黑;
填充:0.25rem;
宽度:90%;
光标:指针;
浮动:无;
保证金:0自动;
}
标签[for='upload_file']:悬停{
背景:rgba(240182198,0.75)!重要;
}
输入[type='submit']{
宽度:90%;
浮动:无;
保证金:1rem自动;
}
#服务标签{
填充:1rem;
显示:内联块;
明确:无;
浮动:无;
保证金:0自动;
宽度:计算(33%-5px);!重要;
}
ul#列表{字体大小:0.7rem;}
#图像预览图像{边距:0.25rem;填充:0.25rem;轮廓:1px点灰色;}
/*自动执行匿名函数*/
(功能(){
var getaspect=函数(w,h){
w=浮动(w);
h=浮点数(h);
如果(w==h)返回1;
否则如果(w>h)返回2;
否则如果(h>w)返回3;
否则返回4;
}
var getratio=函数(w,h){
返回parseFloat(w)/parseFloat(h);
}
var roundNumber=funct