Thanks. I thought that or and || were identical. Guess not.
Steve
Bug Database wrote:
>
> ID: 9482
> Updated by: torben
> Reported By: [EMAIL PROTECTED]
> Old-Status: Open
> Status: Closed
> Bug Type: *General Issues
> Assigned To:
> Comments:
>
> This isn't a bug; it's a result of the differing precedence for || and or (which
> are otherwise identical, btw).
>
> Try this:
>
> $db = mysql_connect("localhost", "root") || print "error connecting";
> echo $db;
>
> The output should be '1'. The reason is that || has higher precedence than =,
> so PHP sees the above statement as:
>
> $db = (mysql_connect("localhost", "root") || print "error connecting");
>
> ...which means that $db is assigned the value of the expression in parens, which
> in this case will always evaluate to 1, which is not a valid MySQL resource.
>
> Next try this:
>
> ($db = mysql_connect("localhost", "web")) || print "error connecting ";
> echo $db;
>
> The output should be 'Resource id #1', since the precedence has now been forced.
> The other way to force precedence is to use the lower-precedence 'or', as you
> mentioned.
>
> The operator precedence table can be found in the manual at:
>
> http://www.php.net/manual/en/language.operators.precedence.php
>
> Hope this helps,
>
> Torben
>
> Previous Comments:
> ---------------------------------------------------------------------------
>
> [2001-02-27 10:52:12] [EMAIL PROTECTED]
> <?
>
> $db = mysql_connect("localhost", "web") || print "error connecting
>".mysql_error()." ".mysql_errno();
> mysql_select_db("surveys");
>
> $result = mysql_query("select * from attract") || print "error querying
>".mysql_error()." ".mysql_errno();
>
> $i = 0;
> while ($row = mysql_fetch_array($result)){ // && ($i++ < 5)){
> echo $row[0]." ".$row[1]."<br>";
> }
> ?>
>
> this script will repeatedly give me invalid MySQL Link Resource Warnings, but by
>changing the "||" to "or" it will work fine.
>
> Thanks
>
> ---------------------------------------------------------------------------
>
> ATTENTION! Do NOT reply to this email!
> To reply, use the web interface found at http://bugs.php.net/?id=9482&edit=2
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