vb.org Archive - eregi vs strpos

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- - eregi vs strpos (https://vborg.vbsupport.ru/showthread.php?t=82577)

sabret00the

06-06-2005 01:10 PM

eregi vs strpos

PHP Code:


		
			
        while(!feof($newfile))

        {

            $duplicate = fgets($newfile, 255);

            // is email address submitted already in the file?

            $dupe = eregi($email, $duplicate);

            if($dupe == TRUE)

            {

                $content = "Our records show that this email address is already registered";

                fclose($newfile);

                //exit;

                die("$front\n$content\n$back");

            }

        }

that works fine but

PHP Code:


		
			
        while(!feof($newfile))

        {

            $duplicate = fgets($newfile, 255);

            // is email address submitted already in the file?

            $dupe = strpos($email, $duplicate);

            if($dupe == TRUE)

            {

                $content = "Our records show that this email address is already registered";

                fclose($newfile);

                //exit;

                die("$front\n$content\n$back");

            }

        }

don't, how come?

filburt1

06-06-2005 01:40 PM

If the e-mail address breaks one of the 255-character boundaries, it won't work. You're also checking case-sensitively.

PHP Code:


		
			
if (stripos($email, file_get_contents($filename)) !== false)

{

    echo "Duplicate";

}

sabret00the

06-06-2005 02:34 PM

hmmm, with your code, it's just ignoring the conditional :(

that's what i don't get the code for the eregi shows a true result yet i change it to strpos and it don't work.

actually that might've been human error

Andreas

06-06-2005 02:39 PM

Quote:

Originally Posted by sabret00the

PHP Code:


		
			
$dupe = strpos($email, $duplicate);

Quote:

Originally Posted by PHP Manual

int strpos ( string haystack, mixed needle [, int offset] )

Returns the numeric position of the first occurrence of needle in the haystack string.

So if you want to check if $email does occur somewhere in $duplicate:

PHP Code:


		
			
$dupe = strpost($duplicate, $email);

:)

But as filburt1 already said, you should user stripos() if available to avoing casing issues.

sabret00the

06-06-2005 02:49 PM

it's giving me errors
Warning: file_get_contents() expects parameter 1 to be string

PHP Code:


		
			
    $filename = "../../testfile.txt"; //above the root

        $newfile = fopen($filename, "r");

            if(stripos(file_get_contents($newfile), $email) !== false)

            {

                $content = "Our records show that this email address is already registered";

                fclose($newfile);

                die("$front\n$content\n$back");

            }

nevermind fixed it :)

Quote:

Originally Posted by KirbyDE

So if you want to check if $email does occur somewhere in $duplicate:

PHP Code:


		
			
$dupe = strpost($duplicate, $email);

:)

But as filburt1 already said, you should user stripos() if available to avoing casing issues.

oops but realised that and fixed it, i have no idea why they do "haystack, needle" when the saying is clearly "needle, haystack" grrr @ then, but thanks kirby :)

Andreas

06-06-2005 03:16 PM

Yeah, it's totally confusing.
I think most other programming languages implement strpos(searchstring, string)

filburt1

06-06-2005 06:50 PM

Yes, it's done logically given that the string to manipulate comes first, and then the arguments for manipulating that string. The arguments are named that way just for clarity, not for matching the phrase.

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