mysql_field_type
(PHP 4, PHP 5)
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. Alternatives to this function include:
- mysqli_fetch_field_direct() [type]
- PDOStatement::getColumnMeta() [driver:decl_type] or [pdo_type]
Description
$result
, int $field_offset
): stringmysql_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 » MySQL
documentation.
Examples
Example #1 mysql_field_type() example
<?php
mysql_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