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php - 发布类别将复选框值插入数据库

转载 作者:行者123 更新时间:2023-11-28 23:57:48 25 4
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所以我试图从我的应用程序中的表单插入文档表中的新行(工作正常)但是在提交时也将行插入到连接表中,我相信我接近解决问题但仍然能够获取它来更新连接表。

我在新文档表单中列出了这样的可用类别:

<?php

$q = "SELECT * FROM cats";

$r = mysqli_query ($dbc, $q); // Run the query.

echo '<div class="view_body">';

// FETCH AND PRINT ALL THE RECORDS
while ($row = mysqli_fetch_array($r)) {
echo '<br><input type="checkbox" name="cats['.$row['cat_id'].']"> '.$row["cat_name"]. '</label>';
}
echo '</div>';

?>

我插入整个表单的脚本如下所示:

<?php
require ('../../db_con.php');

error_reporting(E_ALL);
ini_set('display_errors', '1');

// FORM VALIDATION & SUBMISSION
if ($_SERVER['REQUEST_METHOD'] == 'POST') {

$errors = array(); // BEGIN AN ERRORS ARRAY

// CHECK FIRST NAME
if (empty($_POST['doc_name'])) {
$errors[] = 'You forgot to enter a document name.';
} else {
$dn = mysqli_real_escape_string($dbc, trim($_POST['doc_name']));
}

// CHECK LAST NAME
if (empty($_POST['doc_content'])) {
$errors[] = 'You forgot to enter any document content.';
} else {
$dc = mysqli_real_escape_string($dbc, trim($_POST['doc_content']));
}

// POST CAT ID
if ($_POST['cat_id']) {
mysqli_real_escape_string($dbc, trim($_POST['cat_id']));
}


if (empty($errors)) {

// MAKING THE QUERY

$q = "INSERT INTO docs (doc_name, doc_content, created_date) VALUES ('$dn', '$dc', NOW() )";

$r = mysqli_query($dbc, $q);

if ($r) {



mysqli_query($dbc, $query);

// REDIRECT BACK TO DOCUMENT LIST
echo("<script>location.href = 'list_doc.php';</script>");

} else {

// ERROR CHECKING!
echo '<h1>System Error!</h1> <p>you could not be registered because of a system error!<br></p>';

// DEBUGGIN MESSAGE
echo '<p>' . mysqli_error($dbc) . '<br><br>query: ' . $q . '</p>';
}


$cat_ids=isset($_POST['cats'])&&is_array($_POST['cats'])?array_keys($_POST['cats']):array();

$query="INSERT INTO cat_doc_join (cat_id,doc_id) VALUES";

$length=count($cat_ids);

for($i=0;$i<$length;$i++){
$query.='('.$cat_ids[$i].','.$doc_id.')';

if($i<$length-1)
$query.=',';

}


mysqli_close($dbc);
exit();

} else {

// REPORT THE ERRORS
echo '<h1>Error!</h1><p class="error">The Following error(s) have occured:<br>';
foreach ($errors as $msg) {
echo " - $msg<br>\n";
}
echo '</p><p>Please try again!.</p><p><br></p>';

}

}
?>

我正在努力让连接表执行插入,如果我在 $_POST 上执行 var_dump,我知道它正在抓取我选择的所有字段和复选框,但现在是插入它的问题。在这一点上我真的很挣扎,所以任何帮助都将不胜感激。

已更新

这是表格:

<?php

include 'includes/header.php';
include 'actions/new_doc.inc.php';

?>



<div class="row">
<div class="col-group-1">

<h1>New document</h1>

<form action="new_doc.php" method="post">
<br>
<input style="width:50%;" placeholder="Document Name" type="text" name="doc_name" autocomplete="off" name="doc_name" value="<?php if(isset($_POST['doc_name'])) echo $_POST['doc_name']; ?>" />

</div>
</div>


<div class="row">
<div class="col-group-1">
<?php

$q = "SELECT * FROM cats";

$r = mysqli_query ($dbc, $q); // Run the query.

echo '<div class="view_body">';

// FETCH AND PRINT ALL THE RECORDS
while ($row = mysqli_fetch_array($r)) {
echo '<br><input type="checkbox" name="cats['.$row['cat_id'].']"> '.$row["cat_name"]. '</label>';
}
echo '</div>';

?>
</div>
</div>


<br>


<div class="row">
<div class="col-group-1 wysiwyg_toolbar">

<button class="postEditBtn" type="button" onclick="ibold()" title="Bold Text"><i class="fa fa-bold"></i></button>
<button class="postEditBtn" type="button" onclick="iitalic()" title="Italic Text"><i class="fa fa-italic"></i></button>
<button class="postEditBtn" type="button" onclick="iunderline()" title="Underline Text"><i class="fa fa-underline"></i></button>
<button class="postEditBtn" type="button" onclick="ifontName()" title="Font Family"><i class="fa fa-font"></i></button>
<button class="postEditBtn" type="button" onclick="ifontsize()" title="Font Size"><i class="fa fa-text-height"></i></button>
<button class="postEditBtn" type="button" onclick="ifontcolor()" title="Font Colour"><i class="fa fa-eraser"></i></button>
<button class="postEditBtn" type="button" onclick="ihiliteColor()" title="Highlight Text"><i class="fa fa-magic"></i></button>
<button class="postEditBtn" type="button" onclick="ilink()" title="Add/Edit Link"><i class="fa fa-link"></i></button>
<button class="postEditBtn" type="button" onclick="iunlink()" title="Remove Link"><i class="fa fa-chain-broken"></i></button>
<button class="postEditBtn" type="button" onclick="ijustifyLeft()" title="Text align-left"><i class="fa fa-align-left"></i></button>
<button class="postEditBtn" type="button" onclick="ijustifyCenter()" title="Text align-center"><i class="fa fa-align-center"></i></button>
<button class="postEditBtn" type="button" onclick="ijustifyRight()" title="Text align-right"><i class="fa fa-align-right"></i></button>
<button class="postEditBtn" type="button" onClick="iUnorderedList()" title="Unordered List"><i class="fa fa-list-ul"></i></button>
<button class="postEditBtn" type="button" onClick="iOrderedList()" title="Ordered List"><i class="fa fa-list-ol"></i></button>
<button class="postEditBtnUndo" type="button" onClick="iUndo()" title="Undo last change"><i class="fa fa-rotate-left"></i></button>
<button class="postEditBtnRedo" type="button" onClick="iRedo()" title="Redo last change"><i class="fa fa-rotate-right"></i></button>
<button class="postEditBtn" type="button" onClick="iImage()" title="Image Upload"><i class="fa fa-picture-o"></i></button>

</div>
</div>


<div class="row">
<div class="col-group-1">

<textarea name="doc_content" id="doc_content" placeholder="Document Content" style="display: none;"></textarea>
<iframe name="editor" id="editor" style="height: 600px;"></iframe>

<br><br>
<input onclick="formsubmit()" type="submit" value="Create Document" name="submit"/>
</form>

</div>
</div>







<p><a href="list_doc.php">Back to document list</a></p>

这是 ActionScript :

<?php
require ('../../db_con.php');

error_reporting(E_ALL);
ini_set('display_errors', '1');

// FORM VALIDATION & SUBMISSION
if ($_SERVER['REQUEST_METHOD'] == 'POST') {

$errors = array(); // BEGIN AN ERRORS ARRAY

// CHECK FIRST NAME
if (empty($_POST['doc_name'])) {
$errors[] = 'You forgot to enter a document name.';
} else {
$dn = mysqli_real_escape_string($dbc, trim($_POST['doc_name']));
}

// CHECK LAST NAME
if (empty($_POST['doc_content'])) {
$errors[] = 'You forgot to enter any document content.';
} else {
$dc = mysqli_real_escape_string($dbc, trim($_POST['doc_content']));
}

// POST CAT ID
if ($_POST['cat_id']) {
mysqli_real_escape_string($dbc, trim($_POST['cat_id']));
}


if (empty($errors)) {

// MAKING THE QUERY

$q = "INSERT INTO docs (doc_name, doc_content, created_date) VALUES ('$dn', '$dc', NOW() )";

$r = mysqli_query($dbc, $q);

if ($r) {


$cat_ids=isset($_POST['cats'])&&is_array($_POST['cats'])?array_keys($_POST['cats']):array();

$query="INSERT INTO cat_doc_join (cat_id,doc_id) VALUES";

$length=count($cat_ids);

for($i=0;$i<$length;$i++){
$query.='('.$cat_ids[$i].','.$doc_id.')';

if($i<$length-1)
$query.=',';

}


mysqli_query($dbc, $query);
mysqli_close($dbc);

// REDIRECT BACK TO DOCUMENT LIST
echo("<script>location.href = 'list_doc.php';</script>");

} else {

// ERROR CHECKING!
echo '<h1>System Error!</h1> <p>you could not be registered because of a system error!<br></p>';

// DEBUGGIN MESSAGE
echo '<p>' . mysqli_error($dbc) . '<br><br>query: ' . $q . '</p>';
}

} else {

// REPORT THE ERRORS
echo '<h1>Error!</h1><p class="error">The Following error(s) have occured:<br>';
foreach ($errors as $msg) {
echo " - $msg<br>\n";
}
echo '</p><p>Please try again!.</p><p><br></p>';

}

}
?>

最佳答案

你没有得到第二个插入查询是因为

  // REDIRECT BACK TO DOCUMENT LIST
echo("<script>location.href = 'list_doc.php';</script>");

尝试:

<?php

$q = "SELECT * FROM cats";

$r = mysqli_query ($dbc, $q); // Run the query.

echo '<div class="view_body">';

// FETCH AND PRINT ALL THE RECORDS
while ($row = mysqli_fetch_array($r)) {
echo '<br><label><input type="checkbox" name="cat_id[]" value="' . $row['cat_id'] . '">' . $row["cat_name"] . '</label>';
}
echo '</div>';

?>

<?php 

require ('../../db_con.php');

error_reporting(E_ALL);
ini_set('display_errors', '1');

// FORM VALIDATION & SUBMISSION
if ($_SERVER['REQUEST_METHOD'] == 'POST') {

$errors = array(); // BEGIN AN ERRORS ARRAY
// CHECK FIRST NAME
if (empty($_POST['doc_name'])) {
$errors[] = 'You forgot to enter a document name.';
} else {
$dn = mysqli_real_escape_string($dbc, trim($_POST['doc_name']));
}

// CHECK LAST NAME
if (empty($_POST['doc_content'])) {
$errors[] = 'You forgot to enter any document content.';
} else {
$dc = mysqli_real_escape_string($dbc, trim($_POST['doc_content']));
}

// POST CAT ID
//if ($_POST['cat_id']) {
//mysqli_real_escape_string($dbc, trim($_POST['cat_id']));
//}






if (empty($errors)) {

// MAKING THE QUERY

$q = "INSERT INTO docs (doc_name, doc_content, created_date) VALUES ('$dn', '$dc', NOW() )";

$r = mysqli_query($dbc, $q);

if ($r) {


$doc_id = mysqli_insert_id($dbc);

$query = "INSERT INTO cat_doc_join (cat_id,doc_id) VALUES ";
$cat_ids = $_POST['cat_id'];
$length = count($cat_ids);
for ($i = 0; $i < count($cat_ids); $i++) {
$query.='(' . $cat_ids[$i] . ',' . $doc_id . ')';

if ($i < $length - 1)
$query.=',';
}

mysqli_query($dbc, $query);
mysqli_close($dbc);

// REDIRECT BACK TO DOCUMENT LIST
echo("<script>location.href = 'list_doc.php';</script>");
} else {

// ERROR CHECKING!
echo '<h1>System Error!</h1> <p>you could not be registered because of a system error!<br></p>';

// DEBUGGIN MESSAGE
echo '<p>' . mysqli_error($dbc) . '<br><br>query: ' . $q . '</p>';
}
} else {

// REPORT THE ERRORS
echo '<h1>Error!</h1><p class="error">The Following error(s) have occured:<br>';
foreach ($errors as $msg) {
echo " - $msg<br>\n";
}
echo '</p><p>Please try again!.</p><p><br></p>';
}
}
?>

关于php - 发布类别将复选框值插入数据库,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/31074332/

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