php - Combining `where` and `like` statements by using the CI activerecords

Php - Combining `where` and `like` statements by using the CI activerecords

In CodeIgniter, you can combine where and like statements using the Active Record pattern to create complex queries. Here's an example of how you can use both where and like in CodeIgniter:

$this->db->select('*'); $this->db->from('your_table'); // Add a regular WHERE condition $this->db->where('column_name', 'some_value'); // Add a LIKE condition $this->db->like('another_column', 'part_of_value', 'both'); // You can add additional conditions if needed // $this->db->where('another_column', 'another_value'); $query = $this->db->get(); if ($query->num_rows() > 0) { // Process the result foreach ($query->result() as $row) { // Your code here } } else { // No rows found }

In this example:

  • where('column_name', 'some_value') adds a regular WHERE condition where column_name equals 'some_value'.
  • like('another_column', 'part_of_value', 'both') adds a LIKE condition where another_column contains 'part_of_value'. The third parameter 'both' specifies that it should be a %part_of_value% pattern (you can use 'before' or 'after' for different patterns).

You can add more conditions using additional where or or_where statements if needed. The key is to chain these methods together to create a compound WHERE clause.

Note: Ensure that you adjust the table name and column names according to your database structure.

Examples

  1. Basic where and like Combination:

    $this->db->where('column_name', 'value'); $this->db->like('another_column', 'pattern'); $query = $this->db->get('your_table');

    Description: Combine a basic where condition with a like condition in CodeIgniter Active Record.

  2. Multiple where and like Conditions:

    $this->db->where('column1', 'value1'); $this->db->where('column2', 'value2'); $this->db->like('column3', 'pattern'); $query = $this->db->get('your_table');

    Description: Combine multiple where conditions with a like condition for more complex queries.

  3. Using Grouped where and like Statements:

    $this->db->group_start(); $this->db->where('column1', 'value1'); $this->db->or_where('column2', 'value2'); $this->db->group_end(); $this->db->like('column3', 'pattern'); $query = $this->db->get('your_table');

    Description: Group where conditions and use like for more advanced query structures.

  4. Combining where and like with OR Condition:

    $this->db->where('column1', 'value1'); $this->db->or_like('column2', 'pattern2'); $query = $this->db->get('your_table');

    Description: Use or_like to combine where and like conditions with an OR condition.

  5. Negating like Condition with not_like:

    $this->db->where('column1', 'value1'); $this->db->not_like('column2', 'pattern2'); $query = $this->db->get('your_table');

    Description: Use not_like to negate the like condition in your query.

  6. Combining where_in and like:

    $values = array('value1', 'value2', 'value3'); $this->db->where_in('column1', $values); $this->db->like('column2', 'pattern'); $query = $this->db->get('your_table');

    Description: Combine where_in with like to filter results based on a set of values.

  7. Chaining Multiple like Conditions:

    $this->db->like('column1', 'pattern1'); $this->db->like('column2', 'pattern2'); $query = $this->db->get('your_table');

    Description: Chain multiple like conditions for querying multiple columns.

  8. Combining where, or_where, and like Conditions:

    $this->db->where('column1', 'value1'); $this->db->or_where('column2', 'value2'); $this->db->like('column3', 'pattern'); $query = $this->db->get('your_table');

    Description: Combine where, or_where, and like conditions for more flexibility.

  9. Using Callbacks for Complex Conditions:

    $this->db->where('column1', 'value1'); $this->db->where('column2', 'value2'); $this->db->group_start(); $this->db->like('column3', 'pattern1'); $this->db->or_like('column4', 'pattern2'); $this->db->group_end(); $query = $this->db->get('your_table');

    Description: Use callbacks within the group_start and group_end to handle complex conditions.

  10. Combining where and like with Escape Characters:

    $this->db->where('column1', 'value1'); $this->db->like('column2', 'pattern', 'none'); $query = $this->db->get('your_table');

    Description: Use the 'none' parameter to disable automatic wildcard characters for the like condition.

More Tags

css-position asp.net-mvc lazy-evaluation text-parsing validationrules jupyter-lab postgresql-11 svnignore html-lists android-framelayout

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