That Regexps Ereg?

sue1381

Hi,

Could someone explain this script to me? I'm trying to modify it to suit my needs, but I just don't get it.

The string I'm trying to extract info from is in the following format; Artist - Album - Title and would be accessed by $title.

I understand ereg is a Regexps, and that it breaks down a string and sets up elements of an array, but what I don't get is how to break down Artist - Album - Title from $title.

Thank You.

$fp = fopen($playlisturl, "r"); 
while($line = fgets($fp, 255)) { 
  if(ereg( "artist:\"([^\"]*)\"", $line, $regs)) { 
    $artist[] = $regs[1]; 
  } else if(ereg( "title:\"([^\"]*)\"", $line, $regs)) { 
    $title[] = $regs[1]; 
  } else if(ereg( "album:\"([^\"]*)\"", $line, $regs)) { 
    $album[] = $regs[1]; 
  } 
} 
fclose($fp); 

for($i=0; $i<=2; $i++) { 
  if($artist[$i] != "" && $artist[$i] != "ID/PSA") { 
    $_artist = $artist[$i]; 
    $_title  = $title[$i]; 
    $_album  = $album[$i];
    break; 
  } 
}

Sxooter

split() is a better choice for this:

<?php
$desc = "Sammy Davis Jr. - Greatest Hits - Candy Man";
$parts = split (" - ",$desc);
$artist = $parts[0];
$album = $parts[1];
$title = $parts[2];
?>

I'm pretty sure you can use a regexp with split, so that if you aren't sure there are always just one space on each side of the -, you could use a regexp like: " +- +" for 1 or more spaces, or " - " for zero or more spaces. But that might match names, titles, or albums with - in them.

A better seperator would be a tab (\t) as that isn't likely to be an ascii character in an album name or title.

sue1381

Thanks for the response, but I'm more confused than ever. I might also add that I've never scripted with PHP so I'm pulling hairs on this one.

It appears to me that this code strips what it needs from the string passed in $playlisturl which is in a format I cannot use. The string I'm trying to strip from is passed in this format; Album - Artist - Song and can be accessed with $title[0], $title[1], and $title[2]. So, as you will see, the info returned with this html document shows only <?= $_title ?>.

Here is the code in full:

<html> 
<head> 
<title>Now Playing</title> 
</head> 
<body> 
<?php 
$username = "USER_NAME_HERE"; 
$this_url = $PHP_SELF . "?username=" . $username; 

if(isset($_GET["afl"])) { 
  $afl = 1; 
  $playlisturl = "http://www.live365.com:89/pls/front?handler=playlist&cmd=view&handle=afl%3A" . $username; 
} else { 
  $std = 1; 
  $playlisturl = "http://www.live365.com:89/pls/front?handler=playlist&cmd=view&handle=" . $username; 
} 

$fp = fopen($playlisturl, "r"); 
while($line = fgets($fp, 255)) { 
  if(ereg( "artist:\"([^\"]*)\"", $line, $regs)) { 
    $artist[] = $regs[1]; 
  } else if(ereg( "title:\"([^\"]*)\"", $line, $regs)) { 
    $title[] = $regs[1]; 
  } else if(ereg( "album:\"([^\"]*)\"", $line, $regs)) { 
    $album[] = $regs[1]; 
  } 
} 
fclose($fp); 

for($i=0; $i<=2; $i++) { 
  if($artist[$i] != "" && $artist[$i] != "ID/PSA") { 
    $_artist = $artist[$i]; 
    $_title  = $title[$i]; 
    $_album  = $album[$i]; 
    break; 
  } 
} 

  /* Run forever */ 
  set_time_limit(0); 

  /* Load Amazon Search object */ 
  require("AmazonSearch.php"); 

  /* Create search object */ 
  $AS = new AmazonSearch($Token, $Tag); 

  $SearchType = 'lite'; 

  $Result = $AS->DoKeywordSearch($_artist . " " . $_album, $SearchType, 'music'); 

  if(count($Result) == 0) { 
    $cover = "<img src=\"notfound.jpg\">"; 
  } else { 
    $ResultRow = $Result[0]; 
    $ImageUrlMedium = $ResultRow['ImageUrlMedium']; 
    $size = getimagesize($ImageUrlMedium); 
    if($size[0] == 1) { 
      $ImageUrlMedium = "notfound.jpg"; 
    } 
    $cover = "<img src=\"$ImageUrlMedium\" border=0>"; 
  } 

?> 
<table width="350" height="100" border="0" cellpadding="2" cellspacing="1">
  <tr> 
<td colspan="2" style="font-size: 12pt">&nbsp;Now Playing....</td> 
<td width="100" align="center" rowspan="5"><?= $cover ?></td> 
</tr> 
<tr> 
<td width="125" align="center"<? if(isset($std)) { echo " style=\"font-weight:bold\""; } ?>><a href="<?=$this_url?>&std=1">Standard</a></td> 
<td width="125" align="center"<? if(isset($afl)) { echo " style=\"font-weight:bold\""; } ?>><a href="<?=$this_url?>&afl=1">Ad-Free</a> <a href="http://www.live365.com/rewards/pm?tag=<?= $username ?>" target="_blank">[?]</a></td> 
</tr> 
<tr><td colspan=2>&nbsp;<a href="http://www.allmusic.com/cg/amg.dll?p=amg&opt1=1&uid=SEARCH&P=amg&sql=<?= urlencode($_artist) ?>"><?= $_artist ?></a></td></tr> 
<tr><td colspan=2>&nbsp;"<?= $_title ?>"</td></tr> 
<tr><td colspan=2>&nbsp;<i><?= $_album ?></i></td></tr> 
</table> 
</body> 
</html>

If you wish to get a visual of this code in action you can plug in tunester67 as a username showing the code working and the username satellitestar which will show my dilemma.

Thanks for your patience.