PHP - Replace With Dynamic Variable In Preg_replace

I need a way of just replacing those three characters (",',\,/) with nothing, any ideas?

I'm trying to use preg_replace but I can't get it working.

function replaceContent($sContent)
{
$aReplaceTags = array(
"'\[MENU-CARD\](.*?)\[/MENU-CARD\]'is" => '\\1',
"'\[CONTACT-FORM\]'is" => "Contactform",
);

return preg_replace(array_keys($aReplaceTags), array_values($aReplaceTags), $sContent);
}


This works great however when I change '\\1' into a function the output of '\\1' will always be 1.


function replaceContent($sContent)
{
$aReplaceTags = array(
"'\[MENU-CARD\](.*?)\[/MENU-CARD\]'is" => $this->loadMenuCard('\\1'),
"'\[CONTACT-FORM\]'is" => "Contactform",
);

return preg_replace(array_keys($aReplaceTags), array_values($aReplaceTags), $sContent);
}


Anyone knows what I am doing wrong?

i get the following error in the comments in wordpress blog..:

Warning: preg_replace() [function.preg-replace]: No ending delimiter '~' found in /home/doughhhh/public_html/wp-content/themes/upload/includes/theme-comments.php on line 75

the content of the file is:

Code: [Select]
<?php
// Fist full of comments
if (!function_exists("custom_comment")) {
function custom_comment($comment, $args, $depth) {
   $GLOBALS['comment'] = $comment; ?>
                 
<li <?php comment_class(); ?>>
   
    <a name="comment-<?php comment_ID() ?>"></a>
     
      <div id="li-comment-<?php comment_ID() ?>" class="comment-container">

      <div class="comment-head">
         
          <?php if(get_comment_type() == "comment"){ ?>
                <div class="avatar"><?php the_commenter_avatar($args) ?></div>
            <?php } ?>       
       
<div class="reply">
                    <?php comment_reply_link(array_merge( $args, array('depth' => $depth, 'max_depth' => $args['max_depth']))) ?>
                </div><!-- /.reply -->                   
                 
</div><!-- /.comment-head -->
     
    <div class="comment-entry"  id="comment-<?php comment_ID(); ?>">
   
    <span class="arrow"></span>
   
    <div class="comment-info">
   
    <div class="left"><span class="name"><?php the_commenter_link() ?></span></div>
    <div class="right">       
                <span class="date"><?php echo get_comment_date(get_option( 'date_format' )) ?> <?php _e('at', 'themejunkie'); ?> <?php echo get_comment_time(get_option( 'time_format' )); ?></span>
                <span class="perma"><a href="<?php echo get_comment_link(); ?>" title="<?php _e('Direct link to this comment', 'themejunkie'); ?>">#</a></span>
                 <span class="edit"><?php edit_comment_link(__('Edit', 'themejunkie'), '', ''); ?></span>
</div>
 
  <div class="clear"></div>
 
</div>

<?php comment_text() ?>
           
<?php if ($comment->comment_approved == '0') { ?>
                <p class='unapproved'><?php _e('Your comment is awaiting moderation.', 'themejunkie'); ?></p>
            <?php } ?>

</div><!-- /comment-entry -->

</div><!-- /.comment-container -->

<?php 
}
}

// PINGBACK / TRACKBACK OUTPUT
if (!function_exists("list_pings")) {
function list_pings($comment, $args, $depth) {

$GLOBALS['comment'] = $comment; ?>

<li id="comment-<?php comment_ID(); ?>">
<span class="author"><?php comment_author_link(); ?></span> -
<span class="date"><?php echo get_comment_date(get_option( 'date_format' )) ?></span>
<span class="pingcontent"><?php comment_text() ?></span>

<?php 
} 
}

if (!function_exists("the_commenter_link")) {
function the_commenter_link() {
    $commenter = get_comment_author_link();
    if ( preg_match( '~]* class=[^>]+>~', $commenter ) ) {$commenter = preg_replace( '~(]* class=[\'"]?)~', '\\1url ' , $commenter );
    } else { $commenter = preg_replace( '~(<a )/', '\\1class="url "~' , $commenter );}
    echo $commenter ;
}
}

if (!function_exists("the_commenter_avatar")) {
function the_commenter_avatar($args) {
    $email = get_comment_author_email();
    $avatar = str_replace( "class='avatar", "class='photo avatar", get_avatar( "$email",  $args['avatar_size']) );
    echo $avatar;
}
}

?>

help!

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http://www.phpfreaks.com/forums/index.php?topic=343073.0

preg_replace() asks that "Delimiter must not be alphanumeric or backslash" in the pattern.  So I changed

 $new_text = preg_replace($_POST['withthis'] ,$_POST['withthis'],$_POST['text']);
to this
$replacethis = $_POST['replacethis'];
$new_text = preg_replace("/$replacethis/",$_POST['withthis'],$_POST['text']);
It works fine, but out of curiosity, is there any way to have the POST variable as a parameter directly, and why does it not work? 

Just to try it, I attempted: "/$_POST['withthis']/"  and $_POST["/'withthis'/"] and both do not work.  str_replace is a better option I think, but I am just trying to get a better understanding of this delimiter rule.  Thanks for your time!