Php/docs/function.mysql-field-type
mysql_field_type
(PHP 4, PHP 5)
mysql_field_type — Get the type of the specified field in a result
Warning This extension was deprecated in PHP 5.5.0, and it was removed in PHP 7.0.0. Instead, the MySQLi or PDO_MySQL extension should be used. See also MySQL: choosing an API guide and related FAQ for more information. Alternatives to this function include:
- mysqli_fetch_field_direct() [type]
- PDOStatement::getColumnMeta() [driver:decl_type] or [pdo_type]
Description
mysql_field_type
( resource $result
, int $field_offset
) : string
mysql_field_type() is similar to the mysql_field_name() function. The arguments are identical, but the field type is returned instead.
Parameters
result
- The result resource that is being evaluated. This result comes from a call to mysql_query().
field_offset
- The numerical field offset. The
field_offset
starts at0
. Iffield_offset
does not exist, an error of levelE_WARNING
is also issued.
Return Values
The returned field type
will be one of "int"
, "real"
,
"string"
, "blob"
, and others as
detailed in the [http://dev.mysql.com/doc/ » MySQL
documentation].
Examples
Example #1 mysql_field_type() example
<?phpmysql_connect("localhost", "mysql_username", "mysql_password");mysql_select_db("mysql");$result = mysql_query("SELECT * FROM func");$fields = mysql_num_fields($result);$rows = mysql_num_rows($result);$table = mysql_field_table($result, 0);echo "Your '" . $table . "' table has " . $fields . " fields and " . $rows . " record(s)\n";echo "The table has the following fields:\n";for ($i=0; $i < $fields; $i++) { $type = mysql_field_type($result, $i); $name = mysql_field_name($result, $i); $len = mysql_field_len($result, $i); $flags = mysql_field_flags($result, $i); echo $type . " " . $name . " " . $len . " " . $flags . "\n";}mysql_free_result($result);mysql_close();?>
The above example will output something similar to:
Your 'func' table has 4 fields and 1 record(s) The table has the following fields: string name 64 not_null primary_key binary int ret 1 not_null string dl 128 not_null string type 9 not_null enum
Notes
Note:
For backward compatibility, the following deprecated alias may be used: mysql_fieldtype()
See Also
- mysql_field_name() - Get the name of the specified field in a result
- mysql_field_len() - Returns the length of the specified field