check if a certain string is in a page ..

[techiefreak05]

hello, i looked at file(), and file_get_contents() to get this job done.. but i dont see how i can use it to see if  certain string is present in the web page. any help?

[john010117]

What job? Please elaborate, and post some code if necessary.

[techiefreak05]

I just need some code that goes to a url, and checks whether a given string is located within the file. thats it.

[john010117]

$_GET will work.

[techiefreak05]

sorry i meant this... have a script go to this url: http://www.site.com/index.html and look in the source for a certain string for ex. :"skn388h3fnn3w8n", and if its found anywhere in the source of the file, return true

[ToonMariner]

depends on which version of php you have...

 

<?php
$file = 'PATH/TO/FILE';
if (function_exists('file_get_contents'))
{
$string = file_get_contents($file)
}
else
{
$fp = fopen($file,'rb');
$string = fread($fp,filesize($file));
fclose($fp);
}

if (preg_match('/ASTRING/i',$string))
{
echo 'found string';
}
?>

 

 

[techiefreak05]

so what does the '/ASTRING/i' part mean in this:

 

if (preg_match('/ASTRING/i',$string))

[john010117]

It means to replace that with the string you are looking for.

[ToonMariner]

it means 'search the whole string and if you find ASTRING in there return true. // are regular expression delimiters and the ending i means make it case insensitive.

[techiefreak05]

yes, file_get_contents does work on my server.. so i have this.. but it returns "string not found" ...

 

<?php
$file = 'htp://myspace.com'; //Might this be the problem? does external URLs work?

$string = file_get_contents($file);

if(preg_match('/Home/i',$string)){
echo 'found string';
}else{
echo 'string not found';
}
?>

[ToonMariner]

$file = 'htp://myspace.com';

 

surely should be

 

$file = 'http://myspace.com';

[techiefreak05]

haha. silly typos.