[hordubal]

I need to parse a HTML file, find all the links (HTML tag <a href=...>) and make list of all the links in the given HTML file.

I believe, this is a task for regular expression and function "preg_match_all", but I am not able to create an appropriate regular expression.

Anyone can help?

Petr

[End User]

Originally Posted by hordubal

I need to parse a HTML file, find all the links (HTML tag <a href=...>) and make list of all the links in the given HTML file.

I believe, this is a task for regular expression and function "preg_match_all", but I am not able to create an appropriate regular expression.

Anyone can help?

Petr

Try:

preg_match_all("|<a>(.+)<\/a>|si", $data, $matches);

This will extract all the text between the "<a>" and "</a>" tags.....

[moronovich]

nice try but:

Code:

(*_*) php -r '$string = " < a href=\"link1.html\" > test < /a > < a href=\"link2.html\" > test2 < /a > "; preg_match_all ( "|<a>(.+)<\/a>|si", $data, $matches ); var_dump ( $matches );'
array(2) {
  [0]=>
  array(0) {
  }
  [1]=>
  array(0) {
  }
}

and

Code:

(*_*) php -r '$string = " <a> test </a> <a> test2 </a> "; preg_match_all ( "|<a>(.+)<\/a>|si", $data, $matches ); var_dump ( $matches );'
array(2) {
  [0]=>
  array(0) {
  }
  [1]=>
  array(0) {
  }
}

some simple regexp for limited test:

PHP Code:

$pattern = '/<a(.*?)href=(["\']?)([^\s\'">]+?)(?(2)\2)(\s+)?>(.*?)<\/a>/si'; 

valid for:

PHP Code:

$string = '<a href=link1.html>test</a><a href="link2.html">test2</a>';

preg_match_all($pattern,$string,$matches);

print_r($matches); 

failed for

PHP Code:

$string = '<a href=link1.html onclick="return test();">test</a><a href="link2.html">test2</a>';

preg_match_all($pattern,$string,$matches);

print_r($matches); 

solution:
1. get <a whatever="...">whatever</a>
2. delete on(...) attribute
3. replace '\s+' with \s
4. get the link based on above pattern

good luck..

[NeverMind]

Originally Posted by End User

Try:

preg_match_all("|<a>(.+)<\/a>|si", $data, $matches);

This will extract all the text between the "<a>" and "</a>" tags.....

since we have <a href=... not <a>, your regexp wont work..
try this:

PHP Code:

preg_match_all('~<a href=(.+)>(.+)<\/a>~is', $data, $matches);