Is it possible to split the file contents using a custom pattern?
Question
Is it possible to split the contents of file into parts that have specific pattern?
This is what I want to achieve:
- Read the file using file_get_contents
- Read only contents between similar commented areas.
I am not sure how complicated is that but basically If I am parsing a large html file and want only to display to the browser the specific widgets (pattern is the comment boundaries) like this:
Sample:
<html>
<head>
<title>test</title>
</head>
<body>
this content should not be parsed.. ignored
<!-- widget -->
this is the widget. i want to parse this content only from the file
<!-- widget -->
</body>
</html>
would it be possible using php and regex or anything to parse the contents between boundaries only?
I apologize but I tried to explain what I want to achieve as much as I can. hope someone helps me.
3 answers
solution1
6 ACCPTED 2009-04-22 19:28:22
It's certainly possible, but it doesn't really need to be done with regex. I'd probably just do something like this:
$file = file_get_contents('http://example.com/');
$widgets = explode('<!-- widget -->', $file);
Now the odd elements of $widget ( [1], [3], [5] , etc) contain what was between those boundaries.
solution2
1 2009-04-22 19:32:39
You can achieve what you want with a regular expression (or if you are only ever splitting on you can probably just use that). Check the documentation. The other answer using explode() will probably also work.
$text = file_get_contents('/path/to/your/file');
$array = split('<!-- widget -->', $text);
The first entry will be everything before the first occurrence of <!-- widget --> and the last element will be everything after the last <!-- widget --> . Every odd-numbered element will be what you're looking for.
solution3
1 2009-04-22 19:39:17
$pattern = "/<!-- widget -->([\s\S]+)<!-- widget -->/";
$match = preg_match_all($pattern,$string,$match_array);
var_dump($match_array);
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