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How do I use a variable template with preg_match?

I do not know if there is enough data to submit, but I have

preg_match ('/ SAMPLETEXT /', $ bcurl, $ cookie1);

and I was wondering if I can do this

preg_match ($ newfunction, $ bcurl, $ cookie1);

but when i do that i get this error: "Warning: preg_match () [function.preg-match]: separator must not be alphanumeric or backslash in".

How can I get it to check my new function and not only check for "SAMPLETEXT".

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3 answers


Try preg_match("/$newfunction/", $bcurl, $cookie1);

so that you provide the delimiters you require (using a delimiter that will not be in $ newfunction).



But note that the documentation says, “Don't use preg_match () if you only want to check if one line is contained in another line. Use strpos () or strstr () instead, as they will be faster.

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preg_match('/'.$pattern.'/i', $subject)



i

: Allow capital letters or hyphens.

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u can use a variable by placing it between []

    $subject = "abcdef";
$ch = 'b';
$pattern = '/[$ch]/';
preg_match($pattern, $subject, $matches);
//print_r($matches);
if ($matches)
{
    echo $subject;
}
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