PHP: run a function during preg_replace

Joris, David & Michael,
finally - its a thing of beauty - and fully functioning.
Many thanks for all your help.
Below is what works.

Craig


<?php function changeMe($str){
$pattern = "/\{link:([^\}]*)\}/";
return preg_replace_callback($pattern,'getFileSize',$str);}
?>
<?
function getFileSize($strfilename){
$pathname='docs/';
$fullname=$pathname.$strfilename[1];
if (file_exists($fullname)){
$strsize = human(filesize($fullname));
$name = $strfilename[1];
$namesize = $strfilename[1].' : '.$strsize;
$newlink = '<a href="'.$fullname.'" title="click to open '.$name.'"
target="_blank">'.$namesize.'</a>';
return $newlink;
} else {
return("no file found");
}
return;
}
function human($size){
for($si = 0; $size >= 1024; $size /= 1024, $si++);
return round($size, 1).substr(' kMG', $si, 1);}
?>

"Craig" <csintheuk@hotmail.com> wrote in message
news:fh4l22$jji$1@forums.macromedia.com...
> Thanks Joris,
> the preg_replace_callabck() has me thoroughly confused, but I guess a few
> more sleepless nights and I'll either have cracked it or moved to
> Kyrgyzstan.
> Craig

Yeah I know, living in Confuzistan isn't what it used to be ehh :)

What is confusing you?

The general idea is that every time a match is found, a callback to a custom
function with the value of the match is performed.

Thanks Joris,
the preg_replace_callabck() has me thoroughly confused, but I guess a few
more sleepless nights and I'll either have cracked it or moved to
Kyrgyzstan.
Craig

"Joris van Lier" <whizzrd@hotmail.com> wrote in message
news:fh3rgb$gob$1@forums.macromedia.com...
> Did you see Michael Fesser's reply in an earlier thread about
> preg_replace_callback()?
> it seems like that's what you need.
>
> "Craig" <csintheuk@hotmail.com> wrote in message
> news:fh395r$p3l$1@forums.macromedia.com...
>> This is an ongoing issue (sadly unsolved), if you're bored enough you can
>> see my other posts.
>> The code I have so far (thanks to one and all), 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 a variable name '$1'?
>> When called separately the function getFileSize works, so the issue
>> really is the getFileSize('$1') section.
>>
>> <?php function changeMe($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
>> file name
>> $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);}
>> ?>
>>

Did you see Michael Fesser's reply in an earlier thread about
preg_replace_callback()?
it seems like that's what you need.

"Craig" <csintheuk@hotmail.com> wrote in message
news:fh395r$p3l$1@forums.macromedia.com...
> This is an ongoing issue (sadly unsolved), if you're bored enough you can
> see my other posts.
> The code I have so far (thanks to one and all), 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 a variable name '$1'?
> When called separately the function getFileSize works, so the issue really
> is the getFileSize('$1') section.
>
> <?php function changeMe($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 file
> name
> $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);}
> ?>
>