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mysql_field_flags
Get the flags associated with the specified field in a result
(PHP 4, PHP 5, PECL mysql:1.0)
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 levelE_WARNINGis 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 1436. 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
For downward compatibility, the following deprecated alias may be used: mysql_fieldflags()