Easily prevent HTML injection

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Easily prevent HTML injection

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Easily prevent HTML injection

filburt1

Join Date: Feb 2002

Posts: 6,144

Maryland, US

filburt1

04-22-2003, 10:00 PM

To easily prevent HTML injection from HTML that happens to be in the results of a database query, do this:

PHP Code:


			
while ($bits = $DB_site->fetch_array($result))

{

    foreach ($bits as $key => $value) $bits[$key] = htmlspecialchars($value);

    .

    .

    .

}

That goes through every single element from the fetch_array method and converts all HTML junk to their entities. Then, when you use "$bits[something]" in a template, the user won't be able to inject HTML at all.

07-19-2003, 05:26 PM

bobk

Join Date: Mar 2003

Posts: 1

Благодарил(а): 0 раз(а)

Поблагодарили: 0 раз(а) в 0 сообщениях

This protects if the data is already in the database.... what should check for when inserting data? Or is that in an FAQ that I haven't found yet?

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X vBulletin 3.8.12 by vBS Debug Information

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Queries Executed 17 (?)

More Information

Template Usage:

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X vBulletin 3.8.12 by vBS Debug Information
Page Generation 0.03631 seconds Memory Usage 2,189KB Queries Executed 17 (?)
More Information
Template Usage: (1)SHOWTHREAD (1)ad_footer_end (1)ad_footer_start (1)ad_header_end (1)ad_header_logo (1)ad_navbar_below (1)ad_showthread_beforeqr (1)bbcode_php (1)footer (1)forumjump (1)forumrules (1)gobutton (1)header (1)headinclude (1)modsystem_article (1)navbar (4)navbar_link (120)option (2)post_thanks_box (2)post_thanks_button (1)post_thanks_javascript (1)post_thanks_navbar_search (2)post_thanks_postbit_info (1)postbit (2)postbit_onlinestatus (2)postbit_wrapper (1)spacer_close (1)spacer_open (1)tagbit_wrapper Phrase Groups Available: global inlinemod postbit posting reputationlevel showthread	Included Files: ./showthread.php ./global.php ./includes/init.php ./includes/class_core.php ./includes/config.php ./includes/functions.php ./includes/class_hook.php ./includes/modsystem_functions.php ./includes/functions_bigthree.php ./includes/class_postbit.php ./includes/class_bbcode.php ./includes/functions_reputation.php ./includes/functions_post_thanks.php Hooks Called: init_startup init_startup_session_setup_start init_startup_session_setup_complete cache_permissions fetch_postinfo_query fetch_postinfo fetch_threadinfo_query fetch_threadinfo fetch_foruminfo style_fetch cache_templates global_start parse_templates global_setup_complete showthread_start showthread_getinfo forumjump showthread_post_start showthread_query_postids showthread_query bbcode_fetch_tags bbcode_create showthread_postbit_create postbit_factory postbit_display_start post_thanks_function_post_thanks_off_start post_thanks_function_post_thanks_off_end post_thanks_function_fetch_thanks_start post_thanks_function_fetch_thanks_end post_thanks_function_thanked_already_start post_thanks_function_thanked_already_end fetch_musername postbit_imicons bbcode_parse_start bbcode_parse_complete_precache bbcode_parse_complete postbit_display_complete post_thanks_function_can_thank_this_post_start tag_fetchbit_complete forumrules navbits navbits_complete showthread_complete
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