mysql_field_len
mysql_field_len
Returns the length of the specified field
Description
int mysql_field_len(resource result,
int field_offset);
mysql_field_len
returns the length of the specified field.
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 at0
. Iffield_offset
does not exist, an error of levelE_WARNING
is also issued.
Return Values
The length of the specified field index on success or FALSE
on failure.
Examples
Example 20.42. mysql_field_len
example
<?php $result = mysql_query('SELECT id,email FROM people WHERE id = '42''); if (!$result) { echo 'Could not run query: ' . mysql_error(); exit; } // Will get the length of the id field as specified in the database // schema. $length = mysql_field_len($result, 0); echo $length; ?>
Notes
NoteFor backward compatibility, the following deprecated alias may be used: mysql_fieldlen
See Also
mysql_fetch_lengths
|
strlen |