php - Reusing MYSQL queries on the same page -

-

i have header.php , footer.php file being included on same page, both return of same information. use query in each file.

<?php        $q3 = "select page_id, show_id, link_title pages p show_id = 1";     $r3 = @mysqli_query ($dbc, $q3); // run query.     while ($nav = mysqli_fetch_array($r3, mysqli_assoc)) {     echo"<li>{$nav['link_title']}</li>"     } ?>

this show pages in both header , footer.

however second query in footer returns "couldn't fetch mysqli", works, doesn't. wondering should using mysqli_free_result() better practice?

even more, practice free result after every query? there better way use same result different pages , <?php // ?> tags?

also, error "too many mysql connections error" every , then? because not closing connections after queries ran?

you begin removing @ code. error suppression slow , harmful practice.

if inlcude's in same scope, can save value of first in variable, , check in second , if variable has been set.

content of header.php

$storage = ''; $query = "select page_id, show_id, link_title pages p show_id = 1"; if ( $result = mysqli_query ($dbc, $query)) {    while ($nav = mysqli_fetch_array($result, mysqli_assoc))     {       $item = "<li>{$nav['link_title']}</li>";       $storage .= $item;       echo $item;    } } else {    echo 'query has failed !'; }

content of footer.php

if ( isset( $storage ) && count( $storage )) {    echo $storage; } else {    echo 'query has failed !'; }

read include() in fine manual.

and please , stop writing procedural perversion. learn how oop , read pdo.


Comments

Post a Comment

Popular posts from this blog

objective c - Change font of selected text in UITextView -

-
can suggest me how change font of selected text in uitextview.i cannot use uiwebview since have edit text. have seen pages app.how possible in app. see formatting text within uilabel differently . since need editing, should @ javascript-based editors such ckeditor or tinymce . highly recommend wwdc 2011 video session 511: "rich text editing in safari on ios."
Read more

php - Accessing POST data in Facebook cavas app -

-
so i've got simple form in canvas / iframe facebook app, , i'm trying pass along values post. reading on s.o. , fb's latest docs, understand it, data send via post form can accessed on receiving end $_request object. i read on thread on s.o. in order post forms work need pass along input named "signed_request" value current signed_request (i have signed request working ok otherwise...all login , authentication stuff working fine). isnt mentioned anywhere in official fb docs. so problem comes in $_request object signed request, , bunch of other session stuff. form inputs found. the way can read them set method of form "request" isn't real form method. takes of inputs , sends them args in url. horrible. here's sample page canvas app form i'm using try debug (leaving out authentication stuff): <form enctype="application/x-www-form-urlencoded" method="post" target="_top" id="my_form" action=...
Read more

c# - Getting control value when switching a view as part of a multiview -

-
i have following code in aspx page: <asp:button id="display_button" runat="server" text="display" onclick="button1_click" /> &nbsp; <asp:button id="edit_button" runat="server" text="edit" onclick="button2_click" /> &nbsp; <asp:button id="save_button" runat="server" text="save" onclick="button3_click" visible="false" /> &nbsp; <asp:multiview id="multiview1" runat="server" activeviewindex="0"> <asp:view id="view1" runat="server"> <asp:formview id="view_program" runat="server"> <itemtemplate> <%# eval("status").tostring().trim() %> </itemtemplate> </asp:formview> </asp:view> <asp:view id="view2" runat="server"> ...
Read more