Re: test for ascii or binary string

From: Date: Sat, 30 Nov 2002 04:34:50 +0000
Subject: Re: test for ascii or binary string
References: 1  Groups: php.general 
Request: Send a blank email to php-general+get-126523@lists.php.net to get a copy of this message
On Fri, Nov 29, 2002 at 10:27:05PM -0600, Jonathan Sharp wrote: > > Is there a way to determine if a string has ascii or binary data in it? You could always see if it matches a regular expression that represents the ascii range you're considering. I.e., ereg('[^a-zA-Z0-9]',$string) will return true if non-alphanumerics are in the string. Remember that a string is just a string. Whether the data contained in it is represented as ASCII or something else is completely a matter of implementation. ALL 7-bit data can be represented as ASCII. All 8-bit data can be represented as "IBM Extended ASCII" or whatever you want to call it. But the string is just a string of bits. -- Paul Chvostek <paul@it.ca> Operations / Abuse / Whatever +1 416 598-0000 it.canada - hosting and development http://www.it.ca/

« previous php.general (#126523) next »