php - 我需要搜索多变量并排序

Question

我可以用 mysql 搜索多个值。 我需要对其执行 SORT BY

这是我的代码，工作完美

   $conditions = array();
if ($key) {
  $conditions[] = 'job_title LIKE "%'.$key.'%"';
}
if ($category) {
  $conditions[] = 'job_category = "'.$category.'"';
}
if ($location) {
  $conditions[] = 'job_location = "'.$location.'"';
}
if ($country) {
  $conditions[] = 'job_country = "'.$country.'"';
}
if ($salary) {
  $conditions[] = 'job_salary >= "'.$salary.'"';
}


$sqlStatement = 'SELECT * FROM jobs JOIN job_category ON  jobs.job_category=job_category.category_id  '.implode(' AND ', $conditions);

当我应用 SORT BY 像这样

if ($sort) 
{
$conditions[] = 'ORDER BY "'.$sort.'"';
$sqlStatement = 'SELECT * FROM jobs JOIN job_category ON  jobs.job_category=job_category.category_id  '.implode(' AND ', $conditions);
}
else
{
$sqlStatement = 'SELECT * FROM jobs JOIN job_category ON  jobs.job_category=job_category.category_id  '.implode(' AND ', $conditions);
}

结果是

Blockquote SELECT * FROM jobs JOIN job_category ON jobs.job_category=job_category.category_id job_location = "Manjeri" AND ORDER BY "job_salary" Warning: mysql_fetch_array() expects parameter 1 to be resource, boolean given in /Applications/XAMPP/xamppfiles/htdocs/work/mobjob/test.php on line 41

Answer 1

你不应该把你的订单作为一个条件..它不是一个......

像这样将它附加到末尾:

$sqlStatement = 'SELECT * FROM jobs JOIN job_category ON  jobs.job_category=job_category.category_id  ';

if( sizeof($conditions)) {
    $sqlStatement .= ' WHERE ' . implode(' AND ', $conditions);
}



if($sort) {
    $sqlStatement .= ' ORDER BY "'.$sort.'"';
}