Reference and Manual

Hosting Glossary PHP HTML 4.01 CSS 2.0 Core Javascript 1.5 XHTML 1.0

mysqli_stmt_result_metadata

PHP Manual
Prev		Next

mysqli_stmt_result_metadata

(PHP 5)

mysqli_stmt_result_metadata -- Returns result set metadata from a prepared statement

Description

Procedural style:

mixed mysqli_stmt_result_metadata ( object stmt)

Object oriented style (method):

class stmt {

mixed result_metadata ( void )

}

If a statement passed to mysqli_prepare() is one that produces a result set, mysqli_stmt_result_metadata() returns the result object that can be used to process the meta information such as total number of fields and individual field information.

Note: This result set pointer can be passed as an argument to any of the field-based functions that process result set metadata, such as:
mysqli_num_fields()
mysqli_fetch_field()
mysqli_fetch_field_direct()
mysqli_fetch_fields()
mysqli_field_count()
mysqli_field_seek()
mysqli_field_tell()
mysqli_free_result()

The result set structure should be freed when you are done with it, which you can do by passing it to mysqli_free_result()

Note: The result set returned by mysqli_stmt_result_metadata() contains only metadata. It does not contain any row results. The rows are obtained by using the statement handle with mysqli_fetch().

Return Values

mysqli_stmt_result_metadata() returns a result object or FALSE if an error occured.

Example

Example 1. Object oriented style


<?php
$mysqli = new mysqli("localhost", "my_user", "my_password", "test");

$mysqli->query("DROP TABLE IF EXISTS friends"); 
$mysqli->query("CREATE TABLE friends (id int, name varchar(20))"); 
 
$mysqli->query("INSERT INTO friends VALUES (1,'Hartmut'), (2, 'Ulf')");

$stmt = $mysqli->prepare("SELECT id, name FROM friends");
$stmt->execute();

/* get resultset for metadata */
$result = $stmt->result_metadata();

/* retrieve field information from metadata result set */
$field = $result->fetch_field();

printf("Fieldname: %s\n", $field->name);

/* close resultset */
$result->close();

/* close connection */
$mysqli->close();
?>

Example 2. Procedural style


<?php
$link = mysqli_connect("localhost", "my_user", "my_password", "test");

mysqli_query($link, "DROP TABLE IF EXISTS friends"); 
mysqli_query($link, "CREATE TABLE friends (id int, name varchar(20))"); 
 
mysqli_query($link, "INSERT INTO friends VALUES (1,'Hartmut'), (2, 'Ulf')");

$stmt = mysqli_prepare($link, "SELECT id, name FROM friends");
mysqli_stmt_execute($stmt);

/* get resultset for metadata */
$result = mysqli_stmt_result_metadata($stmt);

/* retrieve field information from metadata result set */
$field = mysqli_fetch_field($result);

printf("Fieldname: %s\n", $field->name);

/* close resultset */
mysqli_free_result($result);

/* close connection */
mysqli_close($link);
?>

Prev	Home	Next
mysqli_stmt_reset	Up	mysqli_stmt_send_long_data

Web Hosting Showcase View the web hosting showcase to find more relevant web hosting choice that will guide you in selecting a good web hosting company.
	Cheap Web Hosting	ASP & ASP.Net Hosting	Dedicated Servers
	Windows 2000 & 2003 Server Hosting	Ecommerce Hosting	PHP Hosting
	Linux & Unix Hosting	Cold Fusion Hosting	South America
	Europe	Reseller Hosting	Managed Hosting
	Virtual Private Server	Asia Pacific

Web Hosting and Development Tools

Network Tools Download Template Programming Manuals Developer Tools

Dedicated servers
& web hosting directory

Dedicated Server

Reference and Manual

mysqli_stmt_result_metadata

Description

Return Values

See also:

Example

	Speed Test Top 25 Hosts Hosting Reviews 100 Hosts
Dedicated servers & web hosting directory

Dedicated servers & web hosting directory

Dedicated Server

Reference and Manual

mysqli_stmt_result_metadata

Description

Return Values

See also:

Example

Dedicated servers
& web hosting directory