如何在codeigniter中显示数据库表名列表

Question

如何使用给定的语法在 CodeIgniter 中显示数据库表名列表：

$tables=$this->db->query("SHOW TABLES LIKE '%Demo%'");

Answer 1

You can use this:

$tables = $this->db->list_tables();

foreach ($tables as $table)
{
   echo $table;
}

documentation

Answer 2

You have to specify the database name .

Check this,

SHOW TABLES FROM `database-name` LIKE '%a%' 

See mysql documentation here

To get table names,

 $tables=$this->db->query("SELECT t.TABLE_NAME AS myTables FROM INFORMATION_SCHEMA.TABLES AS t WHERE t.TABLE_SCHEMA = 'database name' AND t.TABLE_NAME LIKE '%a%' ")->result_array();    
 foreach($tables as $key => $val) {
      echo $val['myTables']."<br>";// myTables is the alias used in query.
 }

Answer 3

Try with information_schema.tables

Example:

$query = $this->db->query("SELECT * FROM information_schema.tables WHERE **** ");
$result = $query->result_array();
return $result;

Go through this Chapter 19 INFORMATION_SCHEMA Tables

EDIT 01

$this->db->list_tables();
$this->db->like('name', 'field');

Answer 4

This will give table names as an array.

$tabResults = $this->db->select('TABLE_NAME')
  ->from('INFORMATION_SCHEMA.TABLES')
  ->where('TABLE_SCHEMA', 'database-name')
  ->like('TABLE_NAME', 'Demo')
  ->get()->result_array();
$tables = array_column($tabResults, 'TABLE_NAME');

Then to display them as a comma-separated list:

echo implode(', ', $tables);