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6.5.24 mysql_field_type

Copyright 1997-2019 the PHP Documentation Group.

  • mysql_field_type

    Get the type of the specified field in a result


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]


string mysql_field_type(resource result,
                        int field_offset);

mysql_field_type is similar to the mysql_field_name function. The arguments are identical, but the field type is returned instead.



The result resource that is being evaluated. This result comes from a call to mysql_query.


The numerical field offset. The field_offset starts at 0. If field_offset does not exist, an error of level E_WARNING is also issued.

Return Values

The returned field type will be one of "int", "real", "string", "blob", and others as detailed in the MySQL documentation.


Example 6.31 mysql_field_type example

mysql_connect("localhost", "mysql_username", "mysql_password");
$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";

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



For backward compatibility, the following deprecated alias may be used: mysql_fieldtype

See Also


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