(PHP 4 >= 4.3.0, PHP 5, PHP 7)
pg_meta_data — Get meta data for table
pg_meta_data ( resource $connection , string $table_name [, bool $extended = false ] ) : array
pg_meta_data() returns table definition for table_name
as an array.
connection
PostgreSQL database connection resource.
table_name
The name of the table.
extended
Flag for returning extended meta data. Default to false
.
An array of the table definition, or false
on error.
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) } }
Version | Description |
---|---|
5.6.0 | No longer experimental. Added "is enum" as default attribute. extended flag is added. |
© 1997–2020 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/function.pg-meta-data.php