PHP mysql_field_flags() Function
 Complete PHP MySQL Reference
Definition and Usage
The mysql_field_flags() function returns the flags of a field in a recordset.
This function gets field data from the mysql_query() function and returns a
string on success, or FALSE on failure or
when there are no more
rows.
Possible return values:
- auto_intcrement - 1 if AUTO_INCREMENT is set
- binary - 1 if the field has the BINAR attribute set
- blob - 1 if the field is a BLOB
- enum - 1 if the field is an ENUM field
- multiple_key - 1 if the field is a non-unique key
- not_null - 1 if the field cannot be NULL
- primary_key - 1 if the field is a primary key
- timestamp - 1 if the field is a timestamp field
- unique_key - 1 if the field is a unique key
- unsigned - 1 if the field is unsigned
- zerofill - 1 if the field is zero-filled
Syntax
|
mysql_field_flags(data,field_offset)
|
| Parameter |
Description |
| data |
Required. Specifies which data pointer to use. The data
pointer is the result from the mysql_query() function |
| field_offset |
Required. Specifies which field to start returning.
0 indicates the first field |
Tips and Notes
Tip: You can break the returned string into an array by using explode().
Example
<?php
$con = mysql_connect("localhost", "peter", "abc123");
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
$db_selected = mysql_select_db("test_db",$con);
$sql = "SELECT * from Person";
$result = mysql_query($sql,$con);
$flags = mysql_field_flags($result, 0);
echo $flags;
mysql_close($con);
?>
|
The output of the code above could be:
|
not_null primary_key auto_increment
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Complete PHP MySQL Reference
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