Function __global->db_function

Definitions

sources/database.php

  • Call a database function that may be different on different database drivers.We are using MySQL syntax as a de facto standard. SQL does not standardise this stuff well.Basic arithmetic and inequality operators are assumed supported without needing a function.
  • Visibility: public
  • Is abstract?: No
  • Is static?: No
  • Is final?: No
  • Returns: string

Parameters

Name Type Passed by reference? Variadic? Default Set Range Description
$function string No No required parameter CONCAT REPLACE SUBSTR LENGTH RAND COALESCE LEAST GREATEST MOD GROUP_CONCAT N/A Function name
$args array No No [] N/A N/A List of string arguments, assumed already quoted/escaped correctly for the particular database

Returns

  • SQL fragment
  • Type: string
  • Set: N/A
  • Range: N/A

Preview

Code (PHP)

/**
 * Call a database function that may be different on different database drivers.We are using MySQL syntax as a de facto standard. SQL does not standardise this stuff well.Basic arithmetic and inequality operators are assumed supported without needing a function.
 *
 * @param  string $function Function name
 * @set CONCAT REPLACE SUBSTR LENGTH RAND COALESCE LEAST GREATEST MOD GROUP_CONCAT
 * @param  array $args List of string arguments, assumed already quoted/escaped correctly for the particular database
 * @return string SQL fragment
 */
function db_function(string $function, array $args = []) : string