CODEWITHSUNDEEP
phpregexpreg-match
Eva Silviana
Eva Silviana

Reputation: 69

PHP preg_match doesn't match

I want to get string from xml here:

https://gdata.youtube.com/feeds/api/videos/MZoO8QVMxkk?v=2

I want to get video title as variable $vtitle and video description as $vdescription

<?php 
    $vinfo = @file_get_contents("https://gdata.youtube.com/feeds/api/videos/MZoO8QVMxkk?v=2");
    $vtitle = preg_match("/<media:title type='plain'>(.*?)<\/media:title>/", $vinfo, $match);
    $vtitle = $match[1];
    $vdescription = preg_match("/<media:description type='plain'>(.*?)‬‬<\/media:description>/", $vinfo, $match);
    $vdescription = $match[1]; 
?>
<h1><?php echo $vtitle; ?></h1>
<p><?php echo $vdescription; ?></p>

Output for $vtitle:

New Avengers Trailer Arrives - Marvel's Avengers: Age of Ultron Trailer 2

Why output for $vdescription is empty or doesn't match? Please help what's wrong with this code? Thanks

Eva

Upvotes: 1

Views: 1055

Answers (3)

xenon
xenon

Reputation: 1425

The dot character in your regular expression is not matching new lines, which is causing preg_match to report no matches.

You need to add the "s" flag to your pattern.

    $vdescription = preg_match("/<media:description type='plain'>(.*?)‬‬<\/media:description>/s", $vinfo, $match);

Just to reiterate what others have said, you will have a much easier time using something like DOMDocument to process XML than you will with regular expressions.

Upvotes: 0

Amit Joki
Amit Joki

Reputation: 59232

You need to use s flag or replace .*? with [\s\S]*?

s flag enables dotall mode.

It would be more advisable to use this which was suggested by @Bob0t as they're more fail-proof and are specifically built for handling XMLs and HTML

Upvotes: 2

vural
vural

Reputation: 391

Try this one;

$vdescription = preg_match("/<media:description type='plain'>(.*?)‬‬<\/media:description>/si", $vinfo, $match);

Upvotes: 0

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