看起来你正在做这样的事情：
首先，数据库模式：
CREATE DATABASE soa_36427533;
USE soa_36427533;
CREATE TABLE soa_ranges (
ID UNSIGNED NOT NULL AUTO_INCREMENT,
min FLOAT(10,2),
max FLOAT(10,2),
PRIMARY KEY (ID)
) ENGINE=InnoDB;
CREATE TABLE soa_range_taxonomies (
ID BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
name VARCHAR(64),
PRIMARY KEY (ID)
) ENGINE=InnoDB;
CREATE TABLE soa_category (
ID UNSIGNED NOT NULL AUTO_INCREMENT,
name VARCHAR(64),
PRIMARY KEY (ID)
) ENGINE=InnoDB;
CREATE TABLE soa_category_taxonomies (
ID BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
name VARCHAR(64),
PRIMARY KEY (ID)
) ENGINE=InnoDB;
CREATE TABLE soa_range_category_relationships (
rangeID BIGINT UNSIGNED NOT NULL,
rangeTaxID BIGINT UNSIGNED NOT NULL,
categoryID BIGINT UNSIGNED NOT NULL,
categoryTaxID BIGINT UNSIGNED NOT NULL,
value INTEGER,
PRIMARY KEY (rangeID, rangeTaxID, categoryID, categoryTaxID),
FOREIGN KEY (rangeID) REFERENCES soa_ranges (ID) ON DELETE CASCADE,
FOREIGN KEY (rangeTaxID) REFERENCES soa_range_taxonomies (ID) ON DELETE CASCADE,
FOREIGN KEY (categoryID) REFERENCES soa_categories (ID) ON DELETE CASCADE,
FOREIGN KEY (categoryTaxID) REFERENCES soa_category_taxonomies (ID) ON DELETE CASCADE
) ENGINE=InnoDB;
用于获取有效范围、类别和分类法的 SQL：
SELECT * FROM soa_ranges ORDER BY ID;
SELECT * FROM soa_range_taxonomies ORDER BY ID;
SELECT * FROM soa_categories ORDER BY ID;
SELECT * FROM soa_category_taxonomies ORDER BY ID;
PHP 将这些结果显示为选择框：
<?php
$db = new mysqli(HOST, USER, PASSWORD, 'soa_36427533');
if ( $db->connect_errno ) die;
$range_select_vals = array();
$ranges = $db->query( "SELECT * FROM soa_ranges ORDER BY ID" );
while ( $range = $ranges->fetch_assoc() ) {
$range_vals = array();
for ( $i = $range['min'] * 100; $i < ( $range['max'] * 100 ); $i++ ) {
$range_vals[] = floatval( $i / 100 );
}
$range_select_vals[$range['ID']] = $range_vals;
}
$ranges->free();
$range_taxonomy_select_vals = array();
$range_taxonomies = $db->query( "SELECT * FROM soa_range_taxonomies ORDER BY ID" );
while ( $range_taxonomy = $range_taxonomies->fetch_assoc() ) {
$range_taxonomy_select_vals[$range_taxonomy['ID']] = $range_taxonomy['name'];
}
$range_taxonomies->free();
$category_select_vals = array();
$categories = $db->query( "SELECT * FROM soa_categories ORDER BY ID" );
while ( $category = $categories->fetch_assoc() ) {
$category_select_vals[$category['ID']] = $category['name'];
}
$categories->free();
$category_taxonomy_select_vals = array();
$category_taxonomies = $db->query( "SELECT * FROM soa_category_taxonomies ORDER BY ID" );
while ( $category_taxonomy = $category_taxonomies->fetch_assoc() ) {
$category_taxonomy_select_vals[$category_taxonomy['ID']] = $category_taxonomy['name'];
}
$category_taxonomies->free();
?>
<select id="range" name="range"><?php
foreach ( $range_select_vals as $range_key => $range_values ) {
foreach( $range_values AS $value ) {
?> <option value="<?php echo $range_key; ?>"><?php echo $value; ?></option><?php
}
}
?>
</select>
<select id="range_taxonomy" name="range_taxonomy"><?php
foreach ( $range_taxonomy_select_vals as $taxonomy_key => $taxonomy_name ) {
?> <option value="<?php echo $taxonomy_key; ?>"><?php echo $taxonomy_name; ?></option><?php
}
?>
</select>
<select id="category" name="category"><?php
foreach ( $category_select_vals as $category_key => $category_name ) {
?> <option value="<?php echo $category_key; ?>"><?php echo $category_name; ?></option><?php
}
?>
</select>
<select id="category_taxonomy" name="category_taxonomy"><?php
foreach ( $category_taxonomy_select_vals as $taxonomy_key => $taxonomy_name ) {
?> <option value="<?php echo $taxonomy_key; ?>"><?php echo $taxonomy_name; ?></option><?php
}
?>
</select><?php
您应该将这四个值发送到处理脚本，该脚本可以通过查询 soa_range_category_relationships 表的 value 列来输出最终结果。