PHP resource id #4 | 易学教程

问题

I'm still a novice with php and mysql. I've spent the last several days trying to figure this out and searching the net for answers, but just can't get this stupid thing working... I have a gaming site (http://houston-by-night.com), people log on, input their character sheet, and are supposed to be able to pull up the sheet again later. Now, the code was working fine, pulled up the page like it is supposed to, then suddenly on 4/29/15, it stopped working and starting giving me the "Resource id #4".

So.. here's the code:

$sql="SELECT * FROM topdata a, venuetop b, stats c, mid_data d, influence e, botdata f, accounts g WHERE (a.char_name=b.char_name) AND (b.char_name=c.char_name) AND (c.char_name=d.char_name) AND (d.char_name=e.char_name) AND (e.char_name=f.char_name) AND (f.char_name=g.log_name) AND (a.char_name=\"$_POST[char_name]\")";
$result=mysql_query($sql) 
    or die ("Couldn't get character data.<br>".mysql_error()."<br>Please contact Savvannis with your login name, character name, the above error and the page address above.");
$row = mysql_fetch_array($result);
    echo $sql;
    echo $result;

and the results on the webpage:

SELECT * FROM topdata a, venuetop b, stats c, mid_data d, influence e, botdata f, accounts g WHERE (a.char_name=b.char_name) AND (b.char_name=c.char_name) AND (c.char_name=d.char_name) AND (d.char_name=e.char_name) AND (e.char_name=f.char_name) AND (f.char_name=g.log_name) AND (a.char_name="Monroe")Resource id #4

And the character sheet is blank... the char_name is correct for the sheet chosen, the html portion is there, but nothing else.

Does anyone have any ideas on what changes I can try to get the information to pull up and populate the page as it's supposed to??

回答1:

You're getting resource id #4 because your query result is a resource. You need to extract the results/data from it.

You're trying to echo out $result which won't ever hold the values fetched from the database, it'll only ever have the result of the query, either being the query object or a Boolean.

What you want to do is look at your $row variable:

print_r($row);

来源：https://stackoverflow.com/questions/30586471/php-resource-id-4

标签

php

mysql

excel

resource-id