maxdb_field_seek
(PECL)
maxdb_field_seek
(no version information, might be only in CVS)
result->field_seek --
Set result pointer to a specified field offset
Description
Procedural style:
int
maxdb_field_seek ( object result, int fieldnr )
Object oriented style (method):
class
result {
int
field_seek ( int fieldnr )
}
Sets the field cursor to the given offset. The next call to maxdb_fetch_field()
will retrieve the field definition of the column associated with that offset.
注: To seek to the beginning of a row, pass an offset value of zero.
Return values
maxdb_field_seek() returns previuos value of field cursor.
Example
例子 1. Object oriented style
<?php $maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB");
/* check connection */ if (maxdb_connect_errno()) { printf("Connect failed: %s\n", maxdb_connect_error()); exit(); }
$query = "SELECT name, cno from hotel.customer ORDER BY cno";
if ($result = $maxdb->query($query)) {
/* Get field information for 2nd column */ $result->field_seek(1); $finfo = $result->fetch_field(); printf("Name: %s\n", $finfo->name); printf("Table: %s\n", $finfo->table); printf("max. Len: %d\n", $finfo->max_length); printf("Flags: %d\n", $finfo->flags); printf("Type: %d\n\n", $finfo->type); $result->close(); }
/* close connection */ $maxdb->close(); ?>
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例子 2. Procedural style
<?php $link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");
/* check connection */ if (maxdb_connect_errno()) { printf("Connect failed: %s\n", maxdb_connect_error()); exit(); }
$query = "SELECT name, cno from hotel.customer ORDER BY cno";
if ($result = maxdb_query($link, $query)) {
/* Get field information for 2nd column */ maxdb_field_seek($result, 1); $finfo = maxdb_fetch_field($result); printf("Name: %s\n", $finfo->name); printf("Table: %s\n", $finfo->table); printf("max. Len: %d\n", $finfo->max_length); printf("Flags: %d\n", $finfo->flags); printf("Type: %d\n\n", $finfo->type);
maxdb_free_result($result); }
/* close connection */ maxdb_close($link); ?>
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The above examples would produce the following output:
Name: NAME
Table:
max. Len: 10
Flags: -1
Type: 2 |