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This document uses PHP Chinese website manual Release
(PHP 4, PHP 5)
mysql_list_dbs — 列出 MySQL 服务器中所有的数据库
$link_identifier
] )mysql_list_dbs() 将返回一个结果指针,包含了当前 MySQL 进程中所有可用的数据库。用 mysql_tablename() 函数来遍历此结果指针,或者任何使用结果表的函数,例如 mysql_fetch_array() 。
Example #1 mysql_list_dbs() 例子
<?php
$link = mysql_connect ( 'localhost' , 'mysql_user' , 'mysql_password' );
$db_list = mysql_list_dbs ( $link );
while ( $row = mysql_fetch_object ( $db_list )) {
echo $row -> Database . "\n" ;
}
?>
以上例子将产生如下输出:
database1 database2 database3 ...
Note:
以上代码用起来和 mysql_fetch_row() 或类似函数一样简单。
为向下兼容仍然可以使用 mysql_listdbs() ,但反对这样做。
参见 mysql_db_name() 。
[#1] busilezas at gmail dot com [2015-02-24 11:49:41]
The example is wrong in Spanish version.
ERROR: mysql_fetch_assoc() expects parameter 1 to be resource, null given in XXX on line 5
while ($fila = mysql_fetch_assoc($res)) {
OK.
while ($fila = mysql_fetch_assoc($resultado)) {
[#2] theriault [2012-07-03 21:46:45]
Another alternative to this function is:
SQL Query: SELECT SCHEMA_NAME FROM INFORMATION_SCHEMA.SCHEMATA
[#3] matjung at hotmail dot com [2010-02-27 02:30:14]
The result pointer contains only the databases for which the mysql_user has the select priviledge granted.