我试图在 PHP 中为表数据库设置 AZ 过滤器。下面我提供了我一直在使用的代码。栏之间是我尝试使用的代码。出于某种原因，它说我需要选择一个数据库，我以为我做到了。请任何帮助将不胜感激。
谢谢，麻烦您了
/**
* This function displays a grid of cloud computing companies
*/
function cloud_computing_data_grid_display($arg){
// Definitely should have just used views here. Opted to do it live, because
// I didn't want to create more useless nodes to store cloud
// computing details. Really should have just made a "cloud computing dossier"
// content type or something. At least this executes (comparitively) fast...
$form_state = array('method' => 'get');
$filters = drupal_build_form('cloud_computing_data_grid_display_filters', $form_state);
// get companies ------------use this to filter company names and apply A-Z Filter----------
$companies = array(); // array of company names for filtering
$qry = db_select('cloud_computing_capability_data', 'cd');
$qry -> fields('cd', cloud_computing_data_company::db_fields());
// add service provider filter
if (!empty($form_state['values']['service_provider'])){
if (strtolower($form_state['values']['service_provider']) != 'any'){
$provider_plain = check_plain($form_state['values']['service_provider']);
$provider_wildcards = preg_replace('/-/','%',strtolower($provider_plain));
$provider_wildcards = '%' . $provider_wildcards . '%';
$qry -> condition('cd.service_provider', $provider_wildcards, 'LIKE');
}
}
// add service provider filter
if (!empty($form_state['values']['contract'])){
if (strtolower($form_state['values']['contract']) != 'any'){
$contract_plain = check_plain($form_state['values']['contract']);
$contract_wildcards = preg_replace('/-/','%',strtolower($contract_plain));
$contract_wildcards = '%' . $contract_wildcards . '%';
$qry -> condition('cd.contract', $contract_wildcards, 'LIKE');
}
}
// filter by services offered
$iaas_required = $form_state['values']['services']['iaas'];
$paas_required = $form_state['values']['services']['paas'];
$saas_required = $form_state['values']['services']['saas'];
$eaas_required = $form_state['values']['services']['eaas'];
if ($iaas_required){ $qry -> condition('cd.iaas', true); }
if ($paas_required){ $qry -> condition('cd.paas', true); }
if ($saas_required){ $qry -> condition('cd.saas', true); }
if ($eaas_required){ $qry -> condition('cd.eaas', true); }
$qry -> orderBy('cd.company', 'ASC');
$company_rows = $qry -> execute();
foreach ($company_rows as $row){
$company = cloud_computing_data_company::build($row);
$companies[$company -> name] = $company->to_array();
}
$companies_themed = array();
foreach($companies as $name => $company){
$company['services_display'] = array();
$company['services_display']['IaaS'] = cloud_computing_data_wrap_service($company['iaas'], 'IaaS');
$company['services_display']['PaaS'] = cloud_computing_data_wrap_service($company['paas'], 'PaaS');
$company['services_display']['SaaS'] = cloud_computing_data_wrap_service($company['saas'], 'SaaS');
$company['services_display']['EaaS'] = cloud_computing_data_wrap_service($company['eaas'], 'EaaS');
$companies_themed[] = theme('cloud_computing_item', array('company' => $company));
}
$res_path = drupal_get_path('module', 'cloud_computing_data');
drupal_add_css($res_path . '/theme/cloud-computing.css');
drupal_add_js($res_path . '/theme/cloud-computing-grid.js');
return theme('cloud_computing_page', array('companies' => $companies_themed));
}
//----------------------------------------------------------------------------------
// filter by company name
/* Get the letter user clicked on and assign it a variable called $sort */
$sort = $_REQUEST['letter'];
/* Let's check if variable $sort is empty. If it is we will create a query to display all customers alphabetically ordered by last name. */
if($sort == ""){
$qry= "SELECT * FROM cloud_computing_capability_data ORDER BY companies ASC " ;
}else{
/* if varible $sort is not empty we will create a query that sorts out the customers by their last name, and order the selected records ascendingly. */
$qry = "SELECT * FROM cloud_computing_capability_data WHERE companies LIKE '$sort%' ORDER BY companies ASC" ;
}
/* Notice the use of '%' wilde card in the above query "LIKE '$sort%'". */
//next step is to execute the query.
$execute = mysql_query($qry) or die(mysql_error());
/* Before we display results let's create our alphabetical navigation. The easiest way to create the navigation is to use character codes and run them through the "for" loop. */
echo "<p>" ;
for ($i = 65; $i < 91; $i++) {
printf('<a href="%s?letter=%s">%s</a> | ',
$PHP_SELF, chr($i), chr($i));
}
echo "</p>" ;
/* now we are ready to display the results. Since out cloud_computing_capability_data table has only three fileds we will display the results in a paragraphs. In the real world you may need to display the results in a table.
To display the results we will use "do while" loop to fetch the results. If no customers are found we will display an error message. */
if(mysql_num_rows($execute)>0){
do{
echo "<p>" .$result['companies']. "</p>" ;
}while($result = mysql_fetch_assoc($execute));
}else{
echo "<p>No customer found.</p>" ;
}
//-----------------------------------------------------------------------------------