mysqli_result::fetch_fields, mysqli_fetch_fields

• mysqli_result::fetch_fields

  mysqli_fetch_fields

  Returns an array of objects representing the fields in a result set

Description

Object oriented stylearray mysqli_result::fetch_fields();

Procedural stylearray mysqli_fetch_fields(mysqli_result result);

This function serves an identical purpose to the mysqli_fetch_field function with the single difference that, instead of returning one object at a time for each field, the columns are returned as an array of objects.

Parameters

result

Procedural style only: A result set identifier returned by mysqli_query, mysqli_store_result or mysqli_use_result.

Return Values

Returns an array of objects which contains field definition information or FALSE if no field information is available.

Table 20.23. Object properties

Property	Description
name	The name of the column
orgname	Original column name if an alias was specified
table	The name of the table this field belongs to (if not calculated)
orgtable	Original table name if an alias was specified
max_length	The maximum width of the field for the result set.
length	The width of the field, as specified in the table definition.
charsetnr	The character set number for the field.
flags	An integer representing the bit-flags for the field.
type	The data type used for this field
decimals	The number of decimals used (for integer fields)

Examples

Example 20.188. Object oriented style

<?php
$mysqli = new mysqli('localhost', 'my_user', 'my_password', 'world');
/* check connection */
if (mysqli_connect_errno()) {
 printf('Connect failed: %s\n', mysqli_connect_error());
 exit();
}
$query = 'SELECT Name, SurfaceArea from Country ORDER BY Code LIMIT 5';
if ($result = $mysqli->query($query)) {
 /* Get field information for all columns */
 $finfo = $result->fetch_fields();
 foreach ($finfo as $val) {
 printf('Name: %s\n', $val->name);
 printf('Table: %s\n', $val->table);
 printf('max. Len: %d\n', $val->max_length);
 printf('Flags: %d\n', $val->flags);
 printf('Type: %d\n\n', $val->type);
 }
 $result->close();
}
/* close connection */
$mysqli->close();
?>

Example 20.189. Procedural style

<?php
$link = mysqli_connect('localhost', 'my_user', 'my_password', 'world');
/* check connection */
if (mysqli_connect_errno()) {
 printf('Connect failed: %s\n', mysqli_connect_error());
 exit();
}
$query = 'SELECT Name, SurfaceArea from Country ORDER BY Code LIMIT 5';
if ($result = mysqli_query($link, $query)) {
 /* Get field information for all columns */
 $finfo = mysqli_fetch_fields($result);
 foreach ($finfo as $val) {
 printf('Name: %s\n', $val->name);
 printf('Table: %s\n', $val->table);
 printf('max. Len: %d\n', $val->max_length);
 printf('Flags: %d\n', $val->flags);
 printf('Type: %d\n\n', $val->type);
 }
 mysqli_free_result($result);
}
/* close connection */
mysqli_close($link);
?>

The above examples will output:

Name: Name Table: Country max. Len: 11
Flags: 1
Type: 254
Name: SurfaceArea Table: Country max. Len: 10
Flags: 32769
Type: 4

See Also

mysqli_num_fields

mysqli_fetch_field_direct

mysqli_fetch_field

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