[PHP] Searching a string or similar

2001-12-28 Thread Ash 

Hi i've taken a look throught he manual and i can't find a function to do
this

Basically i want to take in a string and check that the string doesn't
contain a certain word or something

ie check that it doesn't contain SCRIPT LANGUAGE = Javascript to prevent
hackers/crackers on my guestbook


Thanks

Ash




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Re: [PHP] Searching a string or similar

2001-12-28 Thread Bogdan Stancescu 

if (strpos(SCRIPT LANGUAGE = Javascript,$input_string)===false) {
  echo(Yeah, right!);
  exit;
}

You'll have a lot of problems, though, because
1. You also need to check for script type=text/javascript;
2. You have to strtolower() both strings in order to eliminate capitalization
differences;
3. and the tougher: how do you check for this one:
script language  ='javascript' \t, where \t
is a tab character? And obviously all the possible combinations...

Bogdan

Ash wrote:

 Hi i've taken a look throught he manual and i can't find a function to do
 this

 Basically i want to take in a string and check that the string doesn't
 contain a certain word or something

 ie check that it doesn't contain SCRIPT LANGUAGE = Javascript to prevent
 hackers/crackers on my guestbook

 Thanks

 Ash

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 PHP General Mailing List (http://www.php.net/)
 To unsubscribe, e-mail: [EMAIL PROTECTED]
 For additional commands, e-mail: [EMAIL PROTECTED]
 To contact the list administrators, e-mail: [EMAIL PROTECTED]



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RE: [PHP] Searching a string or similar

2001-12-28 Thread David Piasecki 

This should be a better alternative:

http://www.php.net/manual/en/function.strip-tags.php



-Original Message-
From: Bogdan Stancescu [mailto:[EMAIL PROTECTED]] 
Sent: Friday, December 28, 2001 11:14 AM
To: Ash
Cc: [EMAIL PROTECTED]
Subject: Re: [PHP] Searching a string or similar

if (strpos(SCRIPT LANGUAGE = Javascript,$input_string)===false) {
  echo(Yeah, right!);
  exit;
}

You'll have a lot of problems, though, because
1. You also need to check for script type=text/javascript;
2. You have to strtolower() both strings in order to eliminate
capitalization
differences;
3. and the tougher: how do you check for this one:
script language  ='javascript' \t, where
\t
is a tab character? And obviously all the possible combinations...

Bogdan

Ash wrote:

 Hi i've taken a look throught he manual and i can't find a function to
do
 this

 Basically i want to take in a string and check that the string doesn't
 contain a certain word or something

 ie check that it doesn't contain SCRIPT LANGUAGE = Javascript to
prevent
 hackers/crackers on my guestbook

 Thanks

 Ash

 --
 PHP General Mailing List (http://www.php.net/)
 To unsubscribe, e-mail: [EMAIL PROTECTED]
 For additional commands, e-mail: [EMAIL PROTECTED]
 To contact the list administrators, e-mail:
[EMAIL PROTECTED]



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