php教程

dbase_pack

(PHP 5 < 5.3.0, dbase 5, dbase 7)

dbase_packPacks a database

说明

dbase_pack ( resource $dbase_identifier ) : bool

Packs the specified database by permanently deleting all records marked for deletion using dbase_delete_record(). Note that the file will be truncated after successful packing (contrary to dBASE III's PACK command).

参数

dbase_identifier

The database link identifier, returned by dbase_open() or dbase_create().

返回值

成功时返回 TRUE, 或者在失败时返回 FALSE

更新日志

版本 说明
dbase 7.0.0 dbase_identifier is now a resource instead of an int.

范例

Example #1 Emptying a dBase database

<?php

// open in read-write mode
$db dbase_open('/tmp/test.dbf'2);

if (
$db) {
  
$record_numbers dbase_numrecords($db);
  for (
$i 1$i <= $record_numbers$i++) {
      
dbase_delete_record($db$i);
  }
  
// expunge the database
  
dbase_pack($db);
}

?>

参见

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