PHP Coding question

[cainwebdesign]

I am trying to check to external web pages for values on the sites. I
am totally new to php and i am using the strip tags to check if the
value is there and that works for the one site but on the other site i
need to check if a gif file is present. Can anyone help?

[petersprc]

You may be able to use a simple regular expression. For example:

$html = file_get_contents('http://www.yahoo.com') or
trigger_error('file_get_contents');

if (preg_match('/\bimage.gif\b/', $html)) {
// Found image.gif
}

For a stricter match you could use a pattern like:
#<\s*img\s+([^>]*\s+)?src=(["\'](([^>=]+)?[/\\\\])?)?image\.gif(["\'\s].*?)?>#si

You can do more with regular expressions, or you could parse the HTML
with the PEAR module XML_HTMLSax3:

http://pear.php.net/package/XML_HTMLSax3

ca***********@gmail.com wrote:

I am trying to check to external web pages for values on the sites. I
am totally new to php and i am using the strip tags to check if the
value is there and that works for the one site but on the other site i
need to check if a gif file is present. Can anyone help?