Solved

PHP preg_match_all problem

Posted on 2011-09-26
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378 Views
Last Modified: 2012-06-27
What's wrong with this script...

I'm trying to extract URLs:

<?php

$on='0';

$url='http://www.gutenberg.org/robot/harvest?offset='.$on.'&filetypes[]=txt&langs[]=en';
$output=file_get_contents($url);

preg_match_all('/f=\"(.*)\.zip/', $output, $matches);
$num=count($matches); echo $num.'<br>';

for($run=0; $run<$num; $run++)
echo $matches[$run,0].' > '.$matches[$run,1].' > '.$matches[$run,2].'<br>';

?>

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I get this error:
Parse error: syntax error, unexpected ',', expecting ']' in ... on line 10

It's the same when I don't escape the = sign either.
0
Comment
Question by:ADFB
  • 2
4 Comments
 
LVL 10

Expert Comment

by:ienaxxx
ID: 36600192
I didn't know of that notation " $matches[$run,0]" to recall
$matches[$run][0].

Try to modify your code as follows:

...
for($run=0; $run<$num; $run++)
echo $matches[$run][0].' > '.$matches[$run][1].' > '.$matches[$run][2].'<br>';
...


HTH Bye!
0
 
LVL 8

Accepted Solution

by:
Rik-Legger earned 500 total points
ID: 36600194
I tried to fix your script,
it had some flaws in it.

<?php 

$on='0';

$url='http://www.gutenberg.org/robot/harvest?offset='.$on.'&filetypes[]=txt&langs[]=en';
$output = file_get_contents($url);
//echo $output;

preg_match_all('/<a href=".*">(.*)<\/a>/', $output, $matches);
$num=count($matches[1]); echo $num.'<br>';

for($run=0; $run<$num; $run++) {
	echo $matches[1][$run] . '<br>';
}

?>

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0
 

Author Comment

by:ADFB
ID: 36600256
I didn't know of that notation " $matches[$run,0]"
Ooops! That was my problem, from an old programming language I used to use.
0
 
LVL 10

Expert Comment

by:ienaxxx
ID: 36600286
And so?

Rik's script will only output the FIRST line of matches.

Was that your intention?
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