PHP mysql_field_flags function

mysql_field_flags

(PHP 3, PHP 4, PHP 5)

mysql_field_flags -- Get the flags associated with the specified field in a resultDescriptionstring mysql_field_flags ( resource result, int field_offset )

mysql_field_flags() returns the field flags of
the specified field. The flags are reported as a single word
per flag separated by a single space, so that you can split the
returned value using explode().

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 at 0. If
field_offset does not exist, an error of level
E_WARNING is also issued.

Return Values

Returns a string of flags associated with the result, or FALSE on failure.

The following flags are reported, if your version of MySQL
is current enough to support them: "not_null",
"primary_key", "unique_key",
"multiple_key", "blob",
"unsigned", "zerofill",
"binary", "enum",
"auto_increment" and "timestamp".

Examples

Example 1. A mysql_field_flags() example

$result = mysql_query("SELECT id,email FROM people WHERE id = '42'");
if (!$result) {
echo 'Could not run query: ' . mysql_error();
exit;
}
$flags = mysql_field_flags($result, 0);

echo $flags;
print_r(explode(' ', $flags));