pg_meta_data

(PHP 4 >= 4.3.0, PHP 5, PHP 7, PHP 8)

pg_meta_data — Get meta data for table

Description

pg_meta_data(PgSql\Connection $connection, string $table_name, bool $extended = false): array|false

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

Parameters

connection: An PgSql\Connection instance.
table_name: The name of the table.
extended: Flag for returning extended meta data. Default to false.

Return Values

An array of the table definition, or false on failure.

Changelog

Version	Description
8.1.0	The `connection` parameter expects an PgSql\Connection instance now; previously, a resource was expected.

Examples

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>';
  }
?>

The above example will output:

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)
}
}