dbase_numrecords
(PHP 4, PHP 5, PHP 7)
dbase_numrecords — Gets the number of records in a database
说明
$dbase_identifier
)Gets the number of records (rows) in the specified database.
Note:
Record numbers are between 1 and dbase_numrecords($db), while field numbers are between 0 and dbase_numfields($db)-1.
参数
-
dbase_identifier -
The database link identifier, returned by dbase_open() or dbase_create() .
返回值
The number of records in the database, or FALSE if an error occurs.
范例
Example #1 Looping over all the records of the database
<?php
// open in read-only mode
$db = dbase_open ( '/tmp/test.dbf' , 0 );
if ( $db ) {
$record_numbers = dbase_numrecords ( $db );
for ( $i = 1 ; $i <= $record_numbers ; $i ++) {
// do something here, for each record
}
}
?> 参见
- dbase_numfields() - Gets the number of fields of a database
用户评论:
[#1] Garry Cross [2007-10-30 18:22:38]
<?php
// open in read-only mode
$db = dbase_open('/tmp/test.dbf', 0);
if ($db) {
$record_numbers = dbase_numrecords($db);
for ($i = 1; $i <= $record_numbers; $i++) {
// do something here, for each record
}
}
?>
Trying to get number of records in 1 of my "MySQL" tables. My database has 3 tables in it. How does it know which table to count records in.
Spent an hour and a half looking through Google links to dbase_numrecords, every place I go has a mirror image of the same example, but does not specify which table.
I understand, $db is the string that holds the name of the database. Or should it be the name of the table in the database.