php提示异常 mysql_fetch_array() expects parameter 1 to be resource, boolean given

php提示错误mysql_fetch_array() expects parameter 1 to be resource, boolean given程序如图错误提示如

php提示错误 mysql_fetch_array() expects parameter 1 to be resource, boolean given
程序如图
php提示异常  mysql_fetch_array() expects parameter 1 to be resource, boolean given
错误提示如下
php提示异常  mysql_fetch_array() expects parameter 1 to be resource, boolean given


[解决办法]
echo mysql_error(); 看看