Cita:
Iniciado por trhipahx 
Gracias.
El problema que me surge es que si utilizo eso cuando intento insertar por ejemplo una foto no me parece la foto sino el enlace a la foto.
El código que utilizo es :
<?php
if ( !defined( "_COMMON_PHP" ) ) return;
function format_body($body)
{
global $ForumAllowHTML, $plugins, $lQuote;
// get rid of moderator HTML tags
$body = str_replace('<HTML>', '', $body);
$body = str_replace('</HTML>', '', $body);
// replace all tag starts and ends
$body=str_replace('<', '<', $body);
$body=str_replace('>', '>', $body);
if(function_exists('preg_replace')){
// handle old legacy <> links by converting them into BB tags
$body=preg_replace("/<((http|https|ftp):\/\/[a-z0-9;\/\?:@=\&\$\-_\.\+!*'\(\),~%#]+?)>/i", "<a href=\"$1\" target=\"_blank\">$1</a>", $body);
$body=preg_replace("/<mailto:([a-z0-9\-_\.\+]+@[a-z0-9\-]+\.[a-z0-9\-\.]+?)>/i", "<a href=\"mailto:$1\">$1</a>", $body);
}
if(function_exists('preg_replace')){
if($ForumAllowHTML==1){
// replace url/link items
$body=preg_replace("/\[url\]((http|https|ftp|mailto):\/\/[a-z0-9;\/\?:@=\&\$\-_\.\+!*'\(\),~%#]+?)\[\/url\]/i", "<a href=\"$1\" target=\"_blank\">$1</a>", $body);
$body=preg_replace("/\[img\]((http|https|ftp):\/\/[a-z0-9;\/\?:@=\&\$\-_\.\+!*'\(\),~%]+?)\[\/img\]/i", "<img src=\"$1\" />", $body);
$body=preg_replace("/\[url=((http|https|ftp|mailto):\/\/[a-z0-9;\/\?:@=\&\$\-_\.\+!*'\(\),~%#]+?)\](.+?)\[\/url\]/i", "<a href=\"$1\" target=\"_blank\">$3</a>", $body);
$body=preg_replace("/\[email\]([a-z0-9\-_\.\+]+@[a-z0-9\-]+\.[a-z0-9\-\.]+?)\[\/email\]/i", "<a href=\"mailto:$1\">$1</a>", $body);
// replace simple tag replacements
$search=array(
"/\[(b)\]/",
"/\[\/(b)\]/",
"/\[(u)\]/",
"/\[\/(u)\]/",
"/\[(i)\]/",
"/\[\/(i)\]/",
"/\[(center)\]/",
"/\[\/(center)\]/",
"/\[(code)\]/",
"/\[\/(code)\]/",
"/\[(quote)\]/",
"/\[\/(quote)\]/",
"/\[(hr)\]/",
"/\[(s)\]/",
"/\[\/(s)\]/"
);
$replace=array(
'<strong>',
'</strong>',
'<u>',
'</u>',
'<i>',
'</i>',
'<center>',
'</center>',
'<pre>',
'</pre>',
"<blockquote>$lQuote:<br />\n",
'</blockquote>',
'<hr>',
'<strike>',
'</strike>'
);
$body=preg_replace($search, $replace, $body);
}
// clean up badly formed tags or if not allowed
$body=preg_replace("/\[url=.*?\]/", '', $body);
$search_clean=array(
"/\[url\]/",
"/\[\/url\]/",
"/\[img\]/",
"/\[\/img\]/",
"/\[email\]/",
"/\[email\]/",
"/\[\/email\]/"
);
$body=preg_replace($search_clean, '', $body);
}
// exec all read plugins
@reset($plugins['read_body']);
while(list($key,$val) = each($plugins['read_body'])) {
$body = $val($body);
}
$body=nl2br($body);
// fix for double-newlines in pre-tags
if(preg_match_all("/((<pre>).+?(<\/pre>))/is", $body, $matches)) {
foreach($matches[1] as $match) {
$clean=preg_replace("/(<br>\n|<br \/>\n)/i", "\n", $match);
$body=str_replace($match, $clean, $body);
}
}
return $body;
}
function validate_url($url)
{
// This function fixes invalid website addresses. It is not meant to be a definitive
// validator - all it tries to fix are links entered by a user who forgets to add 'http://'
// to the start of it.
// This function returns the fixed or unchanged URL
if (strlen(trim($url)) > 0) {
if (strtolower((substr($url,0,7)) == 'http://') || (strtolower(substr($url,0,8)) == 'https://')) {
$prepend = false; // user has entered a URL which seems OK
}
elseif ((substr($url,0,1) == '/') || (substr($url,0,2) == '\\')) {
$prepend = false; // user has entered a URL which could be a local address or maybe a computer on a LAN
}
elseif (substr($url,0,1) == '.') {
$prepend = false; // user has entered a URL which could be a relative address, eg "../"
}
elseif (strtolower(substr($url,0,7)) == 'file://'){
$prepend = false; // user has entered a valid file:// URL
}
else {
$prepend = true; // for all other address types we are going to assume the user forgot to add "http://"
}
if ($prepend) {
// add "http://" to URL - this will still work for IP addresses.
$url = 'http://' . $url;
}
}
return $url;
}
?>