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PHP mysql_field_flags

PHP original manual for mysql_field_flags [ show | php.net ]

mysql_field_flags

(PHP 4, PHP 5)

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

Warning

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:

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

Note:

For backward compatibility, the following deprecated alias may be used: mysql_fieldflags()

See Also