Stuck on preg_match_all() help needed

[prest]

Hello there,

 

I'd like to get the Video ID from a Youtube RSS but I'm getting :

 

Warning: preg_match_all() [function.preg-match-all]: Delimiter must not be alphanumeric or backslash

 

Tried several patterns but I really newbie on RegEx and don't know how it works exactly, tried to get a nice tutorial without luck so I'd like you to check it out please since I need it.

 

Source Code where you can find Video ID bold:

 

<link rel="alternate" type="text/html" href="http://www.youtube.com/watch?v=7Buoi_ElUKQ" />

 

 

My source:

 

 

$rss = file_get_contents($url);

// URL supports that function, already tested echoing $rss

 

preg_match_all("watch?v=([^*]+)/i", $rss , $videos, PREG_SET_ORDER);

// Need to get an array of matches so parameter is ok I think

 

 

Any idea?

 

Thank you so much for your help!

 

I'd appreciate a RegEx nice tutorial link too to avoid bothering you with this next time.

 

[Adam]

Give this a try:

 

/watch\?v=([^\"]+)/i

[prest]

First of all, thank you for your quick reply.

 

I'm only getting 7 matches while there are around 30, when echoing $videos array only get:

 

Array

Array

Array

Array

Array

Array

Array

 

Already tried this one :

 

preg_match_all("/videos\/([^\"]+)/i", $rss , $videos, PREG_SET_ORDER);

 

for this code:

 

<id>http://gdata.youtube.com/feeds/api/videos/7Buoi_ElUKQ</id> 

 

That would works too, but got same matches as before with same array content.

 

What is wrong on this code?

 

Thank you again.

[prest]

After double-checking function's documentation got to retrieve storaged data in the array, but get this :

 

qc6XUr4kG3A'/>machinimahttp://gdata.youtube.com/feeds/api/users/machinimaEntertainmentRUNESCAPE 

qc6XUr4kG3A'/>Runescape Gods Exposed - Episode 1 (machinima)http://gdata.youtube.com/feeds/api/videos/7Buoi_ElUKQ2009-06-20T00:14:51.000Z2009-09-08T11:20:40.000ZRUNESCAPE Runescape Gods Exposed - Episode 2 By TehNoobShow FOR MORE MACHINIMA GOTO: www.youtube.com Music Provided by www.freeplaymusic.commachinimahttp://gdata.youtube.com/feeds/api/users/machinimaEntertainmentRUNESCAPE Runescape Gods Exposed - Episode 2 By TehNoobShow FOR MORE MACHINIMA GOTO: www.youtube.com Music Provided by www.freeplaymusic.comRunescape, Gods, Exposed, machinima, tehnoobshow, mmorpg, video, game, episode3, massive, multiplayer, online, role, playing, pc, free, no, charge, interactive, on-line, gameplay, yt:quality=highRunescape Gods Exposed - Episode 2 (machinima)http://gdata.youtube.com/feeds/api/videos/Z5YZTHfr1P42009-07-16T00:14:43.000Z2009-09-07T22:46:20.000ZHALF LIFE Follow the thoughts of Dr. Gordon Freeman, a 27 year old physicist and neurotic individual. In this episode, Freeman meets the 

Z5YZTHfr1P4'/>machinimahttp://gdata.youtube.com/feeds/api/users/machinimaEntertainmentHALF LIFE Follow the thoughts of Dr. Gordon Freeman, a 27 year old physicist and neurotic individual. In this episode, Freeman meets the 

Z5YZTHfr1P4'/>Freeman's Mind: Episode 12 (half life machinima)http://gdata.youtube.com/feeds/api/videos/IurCl7plz802009-06-26T00:12:32.000Z2009-09-08T11:46:28.000ZRUNESCAPE Runescape 

 

First ID is the one I want but rest of text is useless to me right now, so how can I get only that code from :

 

<link rel="alternate" type="text/html" href="

/>

 

 

Can we make it stop when it reads " />   ?

 

Thank you again!