Copyright 1997-2021 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] |
Description
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.
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 7.171 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
For backward compatibility, the following deprecated alias may
be used: mysql_fieldtype
See Also
mysql_field_name
|
mysql_field_len
|