preg_match_all problem

tim69

ok well im trying to add some weather forcasts into my site. Im using a simple preg_match_all script which works for one site. But i tried to modify it for another two sites but i couldnt get them working.

The script is
<?php
$url = "the target site";
$fd = fread(fopen("$url", "r"), 100000);

if ($fd)
{
$code = preg_match_all("|(.*)|", $fd, $matches, PREG_PATTERN_ORDER);
}
else echo "connection to site failed"
?>

I want to get a forcast off
http://www.bom.gov.au/cgi-bin/wrap_fwo.pl?IDN10023.html
the forecast is between the tags <!-- IDN1002303 and <!-- IDN1002304 i.e Mid North Coastal Waters. However the preg_match only works for normal html tags right?
I tried searching using (.*) but didnt get very far. How should i set it up? Also is there a way to divide the match up based on the day e.g - monday...., tuesday...

the second page is http://tuncurry.yourguide.com.au/weather.asp with the target content - the tides. I tried using
| (.*) | But again nothing. Im only new to php. Am i doing something wrong?

Aceman87

As far as I know the preg_match and preg_match_all work with any set of letters, signs and numbers.

You could get it to for example state what it finds between 911 and uncle-charlie. Because I am not that good myself, I wont try to make a script for you which would just turn out to be faulty, instead I suggest that you go here: http://fi.php.net/manual/fi/function.preg-match-all.php and here http://fi.php.net/manual/fi/function.preg-match.php.

Hope this helps :bemused:

tim69

yeh i have already read those and understand the preg_match function im just having trouble working out the pattern modifers.

So say if i wanted to match all the content between (.)|"
but havnt had much luck. Does anyone have any ideas?

To split the days im thinking it would be something like this.
(.day.(.*) )
But where do i put this? as a subpattern or something?

Im only still learning php so any help would be great.

tsinka

Hi,

I tested the following code with the first URL:

<?php
$url = "http://www.bom.gov.au/cgi-bin/wrap_fwo.pl?IDN10023.html";
$fd = file_get_contents($url);

if ($fd) {
  preg_match_all("§(<!--\\*\\*.*?<html>|IDN.*?-->)(.*?)(<!--|</html>)§msi", $fd, $matches);
}

foreach($matches[2] as $value) {
  echo "$value";
}
?>

Edit: remove the two whitespaces in the pattern ... I don't know why they get inserted after submitting the form.

Thomas

tim69

hey thanks thomas

that script works great! I just had to adjust the pattern a little to get the bit i want and ive adjusted it again for the other site.

Can you tell me if it is possible to preg_match the results of a preg_match. Say if i wanted to divide the results of the forcast into days. would you store the results of the first match in a variable and then search that?

thanks 🙂

Aceman87

Id say that preg_match works on any variable, including the variables produced by other preg_match:es 🙂

tsinka

Please post the modified code.

Thomas

tim69

Ok heres the code -
Its not working at the moment.

<?php
$url = "http://insvr1.midcoastwater.com.au/myweather11.html";
$fd = file_get_contents($url);

if ($fd) {
preg_match_all("§(Mid North Coastal Waters,)(.*?)(<!-- IDN1002304<)§msi", $fd, $matches);
}

foreach($matches[2] as $value) {
echo "$value";
}

$fd2=$matches[2]

if ($fd2) {
preg_match_all("§(.day)(.?)(. )§msi", $fd2, $matches2);
}
foreach($matches2[2] as $value) {
echo "$value";
}
?>

tsinka

Try this one (I changed the URL to the first one you posted in your first post):

<?php
$url = "http://www.bom.gov.au/cgi-bin/wrap_fwo.pl?IDN10023.html";
$fd = file_get_contents($url);

if ($fd) {
preg_match_all("§(?<!-->)(<b>Mid North Coastal Waters.*?)(<!--|</html>)§msi", $fd, $matches);
}

$forecast = $matches[1][0];

$forecast = preg_replace("§(<b>(mon|tues|wednes|thurs|fri|satur|sun)day)§i","--sp--\\\\1",$forecast);
$forecast = preg_split("§--sp--§",$forecast);

foreach($forecast as $value) {
  echo "------------------------------<br>\n$value";
}
?>

Thomas

tim69

yeh i realised i put the wrong address in after awhile. Thats what you get for cutting and pasting too much.

Anyway that code works great. Thanks for all your help Thomas. Your the man 🙂

Tim