mysql_field_flags

(PHP 3, PHP 4 , PHP 5)

mysql_field_flags --  Get the flags associated with the specified field in a result

Description

string 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().

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" et "timestamp".

Example 1. A mysql_field_flags() example

<?php
$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, 'id');

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

/* Output will look similar to:

not_null primary_key auto_increment
Array
(
    [0] => not_null
    [1] => primary_key
    [2] => auto_increment
)

*/
?>

For downward compatibility mysql_fieldflags() can also be used. This is deprecated, however.