MySQL and PHP
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] |
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.
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 at
0
. If
field_offset
does not exist, an
error of level E_WARNING
is also
issued.
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
<?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
For backward compatibility, the following deprecated alias may
be used: mysql_fieldtype
mysql_field_name
|
mysql_field_len
|