RE: [PHP] Hex2Bin??
This one will actually remove money from your bank account if you pass the constant PHP_TAKE_MY_MONEY as the 10th argument. ---John Holmes... > -Original Message- > From: Bogdan Stancescu [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, April 30, 2002 8:06 PM > Cc: [EMAIL PROTECTED] > Subject: Re: [PHP] Hex2Bin?? > > Computing-intensive, time-consuming and whatever else expensive > functions do ;-) > > Bogdan > > Joshua E Minnie wrote: > > >Expensive how? > > > >-josh > > > >"Bogdan Stancescu" <[EMAIL PROTECTED]> wrote: > > > >>I'd recommend writing a wrapper around base_convert, naming it hex2bin > >>and using that instead. base_convert() is way too expensive for this > >>purpose (you know that any hex figure is translated to exactly four > >>bits, so you don't need any actual conversion - just replacement). This > >>is why I suggested the wrapper - you can change the code at any time if > >>you see it's too time-consuming... > >> > > > > > > > > > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Hex2Bin??
Computing-intensive, time-consuming and whatever else expensive functions do ;-) Bogdan Joshua E Minnie wrote: >Expensive how? > >-josh > >"Bogdan Stancescu" <[EMAIL PROTECTED]> wrote: > >>I'd recommend writing a wrapper around base_convert, naming it hex2bin >>and using that instead. base_convert() is way too expensive for this >>purpose (you know that any hex figure is translated to exactly four >>bits, so you don't need any actual conversion - just replacement). This >>is why I suggested the wrapper - you can change the code at any time if >>you see it's too time-consuming... >> > > > -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Hex2Bin??
Computation time. CPU cycles. On Tuesday 30 April 2002 13:56 pm, you wrote: > Expensive how? > > -josh > > "Bogdan Stancescu" <[EMAIL PROTECTED]> wrote: > > I'd recommend writing a wrapper around base_convert, naming it hex2bin > > and using that instead. base_convert() is way too expensive for this > > purpose (you know that any hex figure is translated to exactly four > > bits, so you don't need any actual conversion - just replacement). This > > is why I suggested the wrapper - you can change the code at any time if > > you see it's too time-consuming... -- Let us endeavor so to live that when we come to die even the undertaker will be sorry. Samuel Clemens -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Hex2Bin??
Perhaps you could use something a little more KISS- like rawurldecode(chunk_split ( $hexstring, 2 , "%")) not sure if it would be faster than base_convert or not, but it wouldn't be too hard to find out. On Tuesday 30 April 2002 11:50 am, you wrote: > Although the first comment was not what I needed, I did find another > built-in function that converts between any base, base_convert($number, > $frombase, $tobase) worked wonderful for what I needed. > > Josh > > "Miguel Cruz" <[EMAIL PROTECTED]> wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > > On Tue, 30 Apr 2002, Joshua E Minnie wrote: > > > I know that there is a built-in function for bin2hex(), but does any > > body > > > > know have any code to do just the opposite, convert hex2bin? > > > > Check the first comment in the manual under bin2hex. > > > > miguel -- Not life, but good life, is to be chiefly valued. Socrates -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Hex2Bin??
Expensive how? -josh "Bogdan Stancescu" <[EMAIL PROTECTED]> wrote: > I'd recommend writing a wrapper around base_convert, naming it hex2bin > and using that instead. base_convert() is way too expensive for this > purpose (you know that any hex figure is translated to exactly four > bits, so you don't need any actual conversion - just replacement). This > is why I suggested the wrapper - you can change the code at any time if > you see it's too time-consuming... -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Hex2Bin??
I'd recommend writing a wrapper around base_convert, naming it hex2bin and using that instead. base_convert() is way too expensive for this purpose (you know that any hex figure is translated to exactly four bits, so you don't need any actual conversion - just replacement). This is why I suggested the wrapper - you can change the code at any time if you see it's too time-consuming... Bogdan Joshua E Minnie wrote: >Although the first comment was not what I needed, I did find another >built-in function that converts between any base, base_convert($number, >$frombase, $tobase) worked wonderful for what I needed. > >Josh > >"Miguel Cruz" <[EMAIL PROTECTED]> wrote in message >[EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > >>On Tue, 30 Apr 2002, Joshua E Minnie wrote: >> >>>I know that there is a built-in function for bin2hex(), but does any >>> >body > >>>know have any code to do just the opposite, convert hex2bin? >>> >>Check the first comment in the manual under bin2hex. >> >>miguel >> > > > -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Hex2Bin??
Although the first comment was not what I needed, I did find another built-in function that converts between any base, base_convert($number, $frombase, $tobase) worked wonderful for what I needed. Josh "Miguel Cruz" <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > On Tue, 30 Apr 2002, Joshua E Minnie wrote: > > I know that there is a built-in function for bin2hex(), but does any body > > know have any code to do just the opposite, convert hex2bin? > > Check the first comment in the manual under bin2hex. > > miguel > -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Hex2Bin??
On Tue, 30 Apr 2002, Joshua E Minnie wrote: > I know that there is a built-in function for bin2hex(), but does any body > know have any code to do just the opposite, convert hex2bin? Check the first comment in the manual under bin2hex. miguel -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
