GoLang fbsql_fetch_field

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PHP fbsql_fetch_field

PHP original manual for fbsql_fetch_field [ show | php.net ]

fbsql_fetch_field

(PHP 4 >= 4.0.6, PHP 5, PHP 7)

fbsql_fetch_field — Get column information from a result and return as an object

Description

object fbsql_fetch_field ( resource $result [, int $field_offset ] )

Used in order to obtain information about fields in a certain query result.

Parameters

result

A result identifier returned by fbsql_query() or fbsql_db_query().

field_offset

The numerical offset of the field. The field index starts at 0. If not specified, the next field that wasn't yet retrieved by fbsql_fetch_field() is retrieved.

Return Values

Returns an object containing field information, or FALSE on errors.

The properties of the object are:

  • name - column name
  • table - name of the table the column belongs to
  • max_length - maximum length of the column
  • not_null - 1 if the column cannot be NULL
  • type - the type of the column

Examples

Example #1 fbsql_fetch_field() example

<?php
fbsql_connect($host, $user, $password)
    or die("Could not connect");
$result = fbsql_db_query("database", "select * from table")
    or die("Query failed");
# get column metadata
$i = 0;
while ($i < fbsql_num_fields($result)) {
    echo "Information for column $i:<br />\n";
    $meta = fbsql_fetch_field($result);
    if (!$meta) {
        echo "No information available<br />\n";
    }
    echo "<pre>
max_length:   $meta->max_length
name:         $meta->name
not_null:     $meta->not_null
table:        $meta->table
type:         $meta->type
</pre>";
    $i++;
}
fbsql_free_result($result);
?>

See Also