[PHP] Re: test for illegal characters and consequences
Angelo Zanetti wrote: Hi guys. Ive developed a site and now I've come to the stage where I need to test each textfield on each form for illegal characters that have been inputted. I would like to know from some of you how you go about it? Do you use a regular expression and test each textfield sequencially, also what do you do when you find illegal characters? do you strip them out of the inputted information or do you post an error message and tell them that there are illegal characters? I have many pages and many textfields so I would like to use the best and most appropriate and time effective approach by taking in your suggestions before doing the testing and counter measure. Thanks in advance Be more specific about what you mean by illegal characters. Give us some examples. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: test for illegal characters and consequences
Al wrote: Angelo Zanetti wrote: Hi guys. Ive developed a site and now I've come to the stage where I need to test each textfield on each form for illegal characters that have been inputted. I would like to know from some of you how you go about it? Do you use a regular expression and test each textfield sequencially, also what do you do when you find illegal characters? do you strip them out of the inputted information or do you post an error message and tell them that there are illegal characters? I have many pages and many textfields so I would like to use the best and most appropriate and time effective approach by taking in your suggestions before doing the testing and counter measure. Thanks in advance Be more specific about what you mean by illegal characters. Give us some examples. Well any kind of character that could break the the site and the SQL statement. Its not really important what the characters are inputted but rather how to remedy the situation once these characters have been entered. Thanks -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: test for illegal characters and consequences
You can compare each character against the standard character set by means of regular expressions. Angelo Zanetti escribió: Al wrote: Angelo Zanetti wrote: Hi guys. Ive developed a site and now I've come to the stage where I need to test each textfield on each form for illegal characters that have been inputted. I would like to know from some of you how you go about it? Do you use a regular expression and test each textfield sequencially, also what do you do when you find illegal characters? do you strip them out of the inputted information or do you post an error message and tell them that there are illegal characters? I have many pages and many textfields so I would like to use the best and most appropriate and time effective approach by taking in your suggestions before doing the testing and counter measure. Thanks in advance Be more specific about what you mean by illegal characters. Give us some examples. Well any kind of character that could break the the site and the SQL statement. Its not really important what the characters are inputted but rather how to remedy the situation once these characters have been entered. Thanks -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
