PHP - Using Preg_replace With A Function

Hi,   I'm using TCPDF to create a PDF from a webpage. This works great but I have the following problem:   I'm building in WordPress and as you may know WP saves images on different sizes. (e.g. 150x150, 300x300 and 1024x1024) The thing I'm trying to create is that users can download a PDF ready for printing. So High Resolution images. I use a preg_match_all function to match the image source and remove the additional image size from the filename so the original high resolution image is loaded.   e.g. image-150x150.jpg will be replaced by image.jpg. So now the original image that has a image size of 6024x6024px and 300 DPI is loaded. Then TCPDF uses a resize function that resizes the image back to 150x150 px but sets the DPI to 300 so it can be printed on a good quality.   This all works but now the problem comes: If I do the preg_match_all function the image gets "pulled" from the rest of the content and looses it's position. So my thought to fix this was. Get a preg_replace function and replace the image tag with a function that executes the whole image change like described above.   This doesn't work......   So i'm stuck here. Hope anyone can assist me with this. Here is what I have done so far.

function execute(){	
	preg_match_all("/<img[^>]+src=(?:\"|\')\K(.[^\">]+?)(?=\"|\')/",$content,$matches,PREG_PATTERN_ORDER);
		for( $i=0; isset($matches[1]) && $i < count($matches[1]); $i++ ) 
		{
			$search = array('-'.$s1.'x'.$s2.'', '-'.$s3.'x'.$s4.'', '-'.$s5.'x'.$s6.'');
			$replace = array('', '', '');
			
			
			$a = $matches[1][$i];
	
			if (strpos($a,'-'.$s1.'x'.$s2.'') !== false) {
				$w = $s1;
				$w = $pdf->pixelsToUnits($w);
				$h = $s2;
				$h = $pdf->pixelsToUnits($h);
				$l = '57';
				$l = $pdf->pixelsToUnits($l);
				$t = '170';
				$t = $pdf->pixelsToUnits($t);
			}elseif (strpos($a,'-'.$s3.'x'.$s4.'') !== false) {
				$w = $s3;
				$w = $pdf->pixelsToUnits($w);
				$h = $s4;
				$h = $pdf->pixelsToUnits($h);
				$l = '217';
				$l = $pdf->pixelsToUnits($l);
				$t = '20';
				$t = $pdf->pixelsToUnits($t);
			}elseif (strpos($a,'-'.$s5.'x'.$s6.'') !== false) {
				$w = $s5;
				$w = $pdf->pixelsToUnits($w);
				$h = $s6;
				$h = $pdf->pixelsToUnits($h);
				$l = '57';
				$l = $pdf->pixelsToUnits($l);
				$t = '310';
				$t = $pdf->pixelsToUnits($t);
			}
			
			$content .= $pdf->Image(str_replace($search,$replace,$matches[1][$i]), $l, $t, $w, $h, 'JPG', '', '', true, 300, '', false, false, 0, false, false, false);
		}
	};			

global $post;
$id = $_GET['id'];
$content_post = get_post($id);// get the content
$content = $content_post->post_content;
$content = apply_filters('the_content', $content);
$content = str_replace(']]>', ']]&gt;', $content);

$content = preg_replace('/<img[^>]+./e',execute(), $content); // replace the image tag with the new image

// EXPORT IT ALL
$pdf->writeHTML($content, true, false, true, false, '');

Hi,

I'm trying to create a simple BB code-type function, but I'm having trouble putting a function within preg_replace. Let me show you what I mean:

Code: [Select]
$bb_search = array
      (
            '/\[b\]/',
            '/\[\/b\]/',
            '/\[img\=(.*?)\]/',
      );

      $bb_replace = array
      (
            '<b>',
            '</b>',
            check_image( '\\1' ),
      );

      return preg_replace( $bb_search, $bb_replace, $text_string );

The first two (b and /b) work fine, even the function is recognised, but using \\1 doesn't put the bbcode value as the function value. I know that probably made no sense - I'm terrible at explaining these things, so sorry. If anyone can understand what I mean, even offer a solution, that would be great!

Cheers!

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?

Hi,

Since upgrading to php 5.3 i have a line of code on  my site that is giving me a depreciated error. The line of code is as follows:

$data=eregi_replace(">"."[[:space:]]+"."<","><",$data);

I've got as far as knowing i need to change it from eregi_replace to preg_replace but i can't for the life of me work out where to put any backslashes etc, if any. Is there a formula for working this type of thing out? Every example i see has backslashes and $1's all over the place. Do i simply do this "/ and this /" after and before every double quote? Or is it not as simple as that? Things never are are they!

Please could an expert on here offer me any assistance. This is an important line of code(i think) so i didn't want to experiment as i would normally do, i need to get this right first time as i don't know what will happen if i get this wrong.

Cheers.

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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