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(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() .

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

<?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, 0);

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

The above example will output something similar to:

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

Notes

Related Function(s)

explode()

mysql_query()