run a function during preg_replace

[CraigSherwood]

This is an ongoing issue (sadly unsolved), if you're bored enough you can see my other posts.

The code I have so far, successfully creates hyperlinks that target the right files, have the right 'title', etc. However, the getFileSize function refuses to work within the preg_replace.

Seems to me that I can't properly send the $1 variable to the getFileSize function; the $strfilename always just shows up as $1, but really it should be a file name, as it is within the hyperlink section. Most boring.

So, does anyone know how to trigger the getFileSize by sending $1 as a string rather than just as '$1'?

When called separately the function getFileSize works, so the issue really is the $1.

<?php function changeMe($str){
$pattern = "/\{([^:]*)[^\}]*)\}/";
preg_match($pattern,$str,$matches);
$file = $matches[2];
$pattern = "/\{link:([^\}]*)\}/";
return preg_replace($pattern,'<a href="docs/$1" title="click to open $1" target="_blank">'.getFileSize('$1').'</a>',$str);}
?>	
<? 
function getFileSize($strfilename){ 
echo $strfilename.'<br />'; //returns $1 but should really return the value
$pathname='docs/';
$fullname=$pathname.$strfilename;
    if (file_exists($fullname)){ 
        $strsize = human(filesize($fullname)); 
        return($strfilename.' : '.$strsize); 
    } else { 
        return("no file found"); 
    } 
   return;  
} 
function human($size){ 
   for($si = 0; $size >= 1024; $size /= 1024, $si++); 
   return round($size, 1).substr(' kMG', $si, 1);}  
?>

[effigy]

Use preg_replace_callback.