(PECL paradox >= 1.0.0)
px_delete — Deletes resource of paradox database
$pxdoc
Deletes the resource of the paradox file and frees all memory.
pxdoc
Resource identifier of the paradox database as returned by px_new().
�ɹ�ʱ���� TRUE�� ������ʧ��ʱ���� FALSE��
TRUE
FALSE