Get meta data for table

Descrierea

pg_meta_data ( resource $connection , string $table_name [, bool $extended = FALSE ] ) : array

pg_meta_data() returns table definition for table_name as an array.

Parametri

connection: PostgreSQL database connection resource.
table_name: The name of the table.
extended: Flag for returning extended meta data. Default to FALSE.

Valorile întoarse

An array of the table definition, or FALSE on error.

Exemple

Example #1 Getting table metadata


<?php
  $dbconn = pg_connect("dbname=publisher") or die("Could not connect");

  $meta = pg_meta_data($dbconn, 'authors');
  if (is_array($meta)) {
      echo '<pre>';
      var_dump($meta);
      echo '</pre>';
  }
?>

Exemplul de mai sus va afișa:

array(3) {
["author"]=>
array(5) {
  ["num"]=>
  int(1)
  ["type"]=>
  string(7) "varchar"
  ["len"]=>
  int(-1)
  ["not null"]=>
  bool(false)
  ["has default"]=>
  bool(false)
}
["year"]=>
array(5) {
  ["num"]=>
  int(2)
  ["type"]=>
  string(4) "int2"
  ["len"]=>
  int(2)
  ["not null"]=>
  bool(false)
  ["has default"]=>
  bool(false)
}
["title"]=>
array(5) {
  ["num"]=>
  int(3)
  ["type"]=>
  string(7) "varchar"
  ["len"]=>
  int(-1)
  ["not null"]=>
  bool(false)
  ["has default"]=>
  bool(false)
}
}

Istoricul schimbărilor

Versiune	Descriere
5.6.0	No longer experimental. Added "is enum" as default attribute. `extended` flag is added.

A se vedea și

pg_convert() - Convert associative array values into forms suitable for SQL statements