4 つの動的依存選択ボックスがあります。4 つの選択の結果をクエリに結合したいと考えています。以下のすべての関連コードがあります。
セレクトボックスのfont-end部分
<form class="select-boxes" action="<?php echo site_url("/part-search-result/"); ?>" method="POST" target="_blank">
<?php include(__DIR__.'/inc/part-search.php'); ?>
</form>
part-search.php
<?php
include( __DIR__.'/db-config.php' );
$query = $db->query("SELECT * FROM ps_manufact WHERE status = 1 ORDER BY manufact_name ASC");
$rowCount = $query->num_rows;
?>
<select name="manufacturer" id="manufact" onchange="manufactText(this)">
<option value="">Select Manufacturer</option>
<?php
if($rowCount > 0){
while($row = $query->fetch_assoc()){
echo '<option value="'.$row['manufact_id'].'">'.$row['manufact_name'].'</option>';
}
}else{
echo '<option value="">Manufacturer Not Available</option>';
}
?>
</select>
<input id="manufacturer_text" type="hidden" name="manufacturer_text" value=""/>
<script type="text/javascript">
function manufactText(ddl) {
document.getElementById('manufacturer_text').value = ddl.options[ddl.selectedIndex].text;
}
</script>
<select name="type" id="type" onchange="typeText(this)">
<option value="">Select Manufacturer First</option>
</select>
<input id="type_text" type="hidden" name="type_text" value=""/>
<script type="text/javascript">
function typeText(ddl) {
document.getElementById('type_text').value = ddl.options[ddl.selectedIndex].text;
}
</script>
<select name="year" id="year" onchange="yearText(this)">
<option value="">Select Type First</option>
</select>
<input id="year_text" type="hidden" name="year_text" value=""/>
<script type="text/javascript">
function yearText(ddl) {
document.getElementById('year_text').value = ddl.options[ddl.selectedIndex].text;
}
</script>
<select name="model" id="model" onchange="modelText(this)">
<option value="">Select Year First</option>
</select>
<input id="model_text" type="hidden" name="model_text" value=""/>
<script type="text/javascript">
function modelText(ddl) {
document.getElementById('model_text').value = ddl.options[ddl.selectedIndex].text;
}
</script>
<input type="submit" name="search" id="search" value="Search">
<script type="text/javascript">
jQuery(function($) {
$('#manufact').on('change',function(){
var manufactID = $(this).val();
if(manufactID){
$.ajax({
type:'POST',
url:'<?php echo home_url('wp-content/themes/myTheme/inc/ajax-data.php') ?>',
data:'manufact_id='+manufactID,
success:function(html){
$('#type').html(html);
$('#year').html('<option value="">Select Type First</option>');
}
});
}else{
$('#type').html('<option value="">Select Manufact First</option>');
$('#year').html('<option value="">Select Type First</option>');
}
});
$('#type').on('change',function(){
var typeID = $(this).val();
if(typeID){
$.ajax({
type:'POST',
url:'<?php echo home_url('wp-content/themes/myTheme/inc/ajax-data.php') ?>',
data:'type_id='+typeID,
success:function(html){
$('#year').html(html);
$('#model').html('<option value="">Select Year First</option>');
}
});
}else{
$('#year').html('<option value="">Select Type First</option>');
$('#model').html('<option value="">Select Year First</option>');
}
});
$('#year').on('change',function(){
var yearID = $(this).val();
if(yearID){
$.ajax({
type:'POST',
url:'<?php echo home_url('wp-content/themes/myTheme/inc/ajax-data.php') ?>',
data:'year_id='+yearID,
success:function(html){
$('#model').html(html);
}
});
}else{
$('#model').html('<option value="">Select Year First</option>');
}
});
});
</script>
ajax-data.php
<?php
include( __DIR__.'/db-config.php' );
if(isset($_POST["manufact_id"]) && !empty($_POST["manufact_id"])){
$query = $db->query("SELECT * FROM ps_type WHERE manufact_id = ".$_POST['manufact_id']." AND status = 1 ORDER BY type_name ASC");
$rowCount = $query->num_rows;
if($rowCount > 0){
echo '<option value="">Select Type</option>';
while($row = $query->fetch_assoc()){
echo '<option value="'.$row['type_id'].'">'.$row['type_name'].'</option>';
}
}else{
echo '<option value="">Type Not Available</option>';
}
}
if(isset($_POST["type_id"]) && !empty($_POST["type_id"])){
$query = $db->query("SELECT * FROM ps_year WHERE type_id = ".$_POST['type_id']." AND status = 1 ORDER BY year_name ASC");
$rowCount = $query->num_rows;
if($rowCount > 0){
echo '<option value="">Select Year</option>';
while($row = $query->fetch_assoc()){
echo '<option value="'.$row['year_id'].'">'.$row['year_name'].'</option>';
}
}else{
echo '<option value="">Year Not Available</option>';
}
}
if(isset($_POST["year_id"]) && !empty($_POST["year_id"])){
$query = $db->query("SELECT * FROM ps_model WHERE year_id = ".$_POST['year_id']." AND status = 1 ORDER BY model_name ASC");
$rowCount = $query->num_rows;
if($rowCount > 0){
echo '<option value="">Select Model</option>';
while($row = $query->fetch_assoc()){
echo '<option value="'.$row['model_id'].'">'.$row['model_name'].'</option>';
}
}else{
echo '<option value="">Model Not Available</option>';
}
}
?>
part-search-result.php
<?php
if (isset($_POST['search'])) {
$clauses = array();
if (isset($_POST['manufacturer_text']) && !empty($_POST['manufacturer_text'])) {
$clauses[] = "`manufacturer` = '{$_POST['manufacturer_text']}'";
}
if (isset($_POST['type_text']) && !empty($_POST['type_text'])) {
$clauses[] = "`type` = '{$_POST['type_text']}'";
}
if (isset($_POST['year_text']) && !empty($_POST['year_text'])) {
$clauses[] = "`year` = '{$_POST['year_text']}'";
}
if (isset($_POST['model_text']) && !empty($_POST['model_text'])) {
$clauses[] = "`model` = '{$_POST['model_text']}'";
}
$where = !empty( $clauses ) ? ' where '.implode(' and ',$clauses ) : '';
$sql = "SELECT * FROM `wp_products` ". $where;
$result = filterTable($sql);
} else {
$sql = "SELECT * FROM `wp_products` WHERE `manufacturer`=''";
$result = filterTable($sql);
}
function filterTable($sql) {
$con = mysqli_connect("localhost", "root", "root", "i2235990_wp2");
if (!$con) {
die('Could not connect: ' . mysqli_error($con));
}
$filter_Result = mysqli_query($con, $sql);
return $filter_Result;
}
?>
<?php get_header(); ?>
<div class="container">
<div id="products" class="row list-group">
<?php while ( $rows = mysqli_fetch_array($result) ): ?>
<div class="item col-xs-12 col-sm-4 col-md-4 col-lg-4">
<div class="thumbnail">
<?php
echo '<img name="product-image" class="group list-group-image hvr-bob" src=' . $rows['image_url'] . ' width="400px" height="250px" alt="" />';
?>
<div class="caption">
<h4 class="group inner list-group-item-heading">
<?php
echo "Manufacturer:\t".$rows['manufacturer'].'<br>';
echo "Type:\t".$rows['type'].'<br>';
echo "Year:\t".$rows['year'].'<br>';
echo "Model:\t".$rows['model'].'<br>';
echo '<br>';
echo "Description:\t".$rows['description'].'<br>';
?>
</h4>
</div>
</div>
</div>
<?php endwhile; ?>
</div>
</div>
<?php get_footer(); ?>
今私の問題は：
最初の 1 つのボックスのみを選択するか、最初の 2 つのボックスを選択してSearchボタンをクリックすると、結果ページに正常にジャンプします。ただし、3 番目のボックスを連続して選択すると、結果ページが表示されなくなり、Chrome コンソールから次のエラーが返されます。
Failed to load resource: the server responded with a status of 404 (Not Found)