Curl to check for certain text on a webpage

[doa24uk]

Hi guys,

 

I'm wondering if someone could advise or point me in the direction of a good tutorial for the following.

 

Let's say I have two pages. A & B

 

Page A contains a link to Page B

 

I want to check for certain text contained on Page B (it will always be in the same place.

 

So, if Page B says

 

<div id=mydiv>Positive Negative</div>

 

Then I can code something in php (this bit I can do) to update Page A with the text

 

Unfortunately, Page B Result was NEGATIVE

 

Otherwise it will post something on Page A saying

 

Great, Page B Result was POSITIVE

 

 

---

 

Thanks in advance!

[papaface]

Regex is your best option, although I'm not the best at regex so I'd probably do something like:

$file = file_get_contents("a.php");
$split = explode('<div id=mydiv>Positive Negative</div>',$file);
if (count($split) > 1)
{
//div was found
}
else
{
//div was not found
}

Admittedly, this is not the best way to do it, but it will work.

[doa24uk]

Regex is your best option, although I'm not the best at regex so I'd probably do something like:

$file = file_get_contents("a.php");
$split = explode('<div id=mydiv>Positive Negative</div>',$file);
if (count($split) > 1)
{
//div was found
}
else
{
//div was not found
}

Admittedly, this is not the best way to do it, but it will work.

 

Sorry, I should have mentioned that a.php in your example & Page B will be an offsite page therefore this won't work

[doa24uk]

^bump^

[thewooleymammoth]

im pretty sure it will still work as he said if i remember right you can get file contents from their page

 

$file = file_get_contents("http://google.com");
$split = explode('<div id=mydiv>Positive Negative</div>',$file);
if (count($split) > 1)
{
//div was found
}
else
{
//div was not found
}