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:
