fbsql_fetch_field

Description

Returns an object containing field information_

fbsql_fetch_field() can be used in order to obtain information about fields in a certain query result_ If the field offset isn't specified, the next field that wasn't yet retrieved by fbsql_fetch_field() is retrieved_

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

<?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 fbsql_field_seek()_