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fbsql_fetch_field (PHP 4 >= 4.0.6, PHP 5) fbsql_fetch_field -- Get column information from a result and return as an object Описаниеobject fbsql_fetch_field ( resource result [, int field_offset] )
Used in order to obtain information about fields in a certain query result.
Список параметров
resultA 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.
Возвращаемые значения
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
Примеры
Пример 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");
$i = 0;
while ($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);
?>
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fbsql_fetch_assoc