MySQLは1本のsqlを実現して大量のデータの更新を完成します

元の機能:

update categories SET display_order= 3,title = 'New Title 1' where id=1;

update categories SET display_order= 4,title = 'New Title 2' where id=2;

update categories SET display_order= 5,title = 'New Title 3' where id=3;

機能の向上:

UPDATE categories SET
    display_order = CASE id
        WHEN 1 THEN 3
        WHEN 2 THEN 4
        WHEN 3 THEN 5
    END,
    title = CASE id
        WHEN 1 THEN 'New Title 1'
        WHEN 2 THEN 'New Title 2'
        WHEN 3 THEN 'New Title 3'
    END
WHERE id IN (1,2,3)

PHP自動生成sql

$data = [
    ['id' => 1, 'parent_id' => 100, 'title' => 'A', 'sort' => 1],
    ['id' => 2, 'parent_id' => 100, 'title' => 'A', 'sort' => 3],
    ['id' => 3, 'parent_id' => 100, 'title' => 'A', 'sort' => 5],
    ['id' => 4, 'parent_id' => 100, 'title' => 'B', 'sort' => 7],
    ['id' => 5, 'parent_id' => 101, 'title' => 'A', 'sort' => 9],
];

  ，    parent_id 100、title A       id    ：

/**
 *       
 * @param $tableName   
 * @param $data array       ，      
 * @param array $params array       ，         
 * @param string $field string       ，   id
 * @return bool|string
 */
function batchUpdate($tableName,$data, $field, $params = [])
{
   if (!is_array($data) || !$field || !is_array($params)) {
      return false;
   }

    $updates = parseUpdate($data, $field);
    $where = parseParams($params);

    //        $field   ，        ，   $fields   
    // array_column()    PHP5.5.0+，        ，      ，
    //     ：http://php.net/manual/zh/function.array-column.php#118831
    $fields = array_column($data, $field);
    $fields = implode(',', array_map(function($value) {
        return "'".$value."'";
    }, $fields));

    $sql = sprintf("UPDATE `%s` SET %s WHERE `%s` IN (%s) %s", $tableName, $updates, $field, $fields, $where);

   return $sql;
}

/**
 *         CASE WHEN THEN       
 * @param $data array     
 * @param $field string   
 * @return string sql  
 */
function parseUpdate($data, $field)
{
    $sql = '';
    $keys = array_keys(current($data));
    foreach ($keys as $column) {

        $sql .= sprintf("`%s` = CASE `%s` 
", $column, $field);
        foreach ($data as $line) {
            $sql .= sprintf("WHEN '%s' THEN '%s' 
", $line[$field], $line[$column]);
        }
        $sql .= "END,";
    }

    return rtrim($sql, ',');
}

/**
 *   where  
 * @param $params
 * @return array|string
 */
function parseParams($params)
{
   $where = [];
   foreach ($params as $key => $value) {
      $where[] = sprintf("`%s` = '%s'", $key, $value);
   }

   return $where ? ' AND ' . implode(' AND ', $where) : '';
}

呼び出し:

echo batchUpdate($data, 'id', ['parent_id' => 100, 'title' => 'A']);

sqlの生成

WHEN '1' THEN '1' 
WHEN '2' THEN '2' 
WHEN '3' THEN '3' 
WHEN '4' THEN '4' 
WHEN '5' THEN '5' 
END,`parent_id` = CASE `id` 
WHEN '1' THEN '100' 
WHEN '2' THEN '100' 
WHEN '3' THEN '100' 
WHEN '4' THEN '100' 
WHEN '5' THEN '101' 
END,`title` = CASE `id` 
WHEN '1' THEN 'A' 
WHEN '2' THEN 'A' 
WHEN '3' THEN 'A' 
WHEN '4' THEN 'B' 
WHEN '5' THEN 'A' 
END,`sort` = CASE `id` 
WHEN '1' THEN '1' 
WHEN '2' THEN '3' 
WHEN '3' THEN '5' 
WHEN '4' THEN '7' 
WHEN '5' THEN '9' 
END WHERE `id` IN ('1','2','3','4','5')  AND `parent_id` = '100' AND `title` = 'A'

参考記事:
PHP一括更新