Re: [PHP] My truth comes out [1]
preg_match(/false/i, $string) ? false : true; On Thu, Oct 21, 2010 at 7:39 PM, Gary php-gene...@garydjones.name wrote: Is there any nice way to convert a string containing either TRUE or FALSE to a bool with the appropriate value? I know I can just if (strcmp... but, as the song goes on to say ...ugly, so ugly, it's ugly[1] Footnotes: [1] Mask, Henry Rollins -- Gary -- 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] My truth comes out [1]
That's as bad as an if! What about using settype() on the string? I've not tested it, but it looks like it should do the trick. Thanks, Ash http://www.ashleysheridan.co.uk - Reply message - From: Russell Dias rus...@gmail.com Date: Thu, Oct 21, 2010 10:51 Subject: [PHP] My truth comes out [1] To: php-general@lists.php.net preg_match(/false/i, $string) ? false : true; On Thu, Oct 21, 2010 at 7:39 PM, Gary php-gene...@garydjones.name wrote: Is there any nice way to convert a string containing either TRUE or FALSE to a bool with the appropriate value? I know I can just if (strcmp... but, as the song goes on to say ...ugly, so ugly, it's ugly[1] Footnotes: [1] Mask, Henry Rollins -- Gary -- 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] My truth comes out [1]
I'm curious to know why 'thats as bad as an if' ? It's simple, concise, understandble and does the job. So, I'm curious to know why exactly its bad? On Thu, Oct 21, 2010 at 8:01 PM, a...@ashleysheridan.co.uk a...@ashleysheridan.co.uk wrote: That's as bad as an if! What about using settype() on the string? I've not tested it, but it looks like it should do the trick. Thanks, Ash http://www.ashleysheridan.co.uk - Reply message - From: Russell Dias rus...@gmail.com Date: Thu, Oct 21, 2010 10:51 Subject: [PHP] My truth comes out [1] To: php-general@lists.php.net preg_match(/false/i, $string) ? false : true; On Thu, Oct 21, 2010 at 7:39 PM, Gary php-gene...@garydjones.name wrote: Is there any nice way to convert a string containing either TRUE or FALSE to a bool with the appropriate value? I know I can just if (strcmp... but, as the song goes on to say ...ugly, so ugly, it's ugly[1] Footnotes: [1] Mask, Henry Rollins -- Gary -- 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 -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] My truth comes out [1]
Because it is an if statement, just in a different form, and preg_match is more computational expensive than a direct string comparison. Thanks, Ash http://www.ashleysheridan.co.uk - Reply message - From: Russell Dias rus...@gmail.com Date: Thu, Oct 21, 2010 11:03 Subject: [PHP] My truth comes out [1] To: a...@ashleysheridan.co.uk a...@ashleysheridan.co.uk Cc: php-general@lists.php.net I'm curious to know why 'thats as bad as an if' ? It's simple, concise, understandble and does the job. So, I'm curious to know why exactly its bad? On Thu, Oct 21, 2010 at 8:01 PM, a...@ashleysheridan.co.uk a...@ashleysheridan.co.uk wrote: That's as bad as an if! What about using settype() on the string? I've not tested it, but it looks like it should do the trick. Thanks, Ash http://www.ashleysheridan.co.uk - Reply message - From: Russell Dias rus...@gmail.com Date: Thu, Oct 21, 2010 10:51 Subject: [PHP] My truth comes out [1] To: php-general@lists.php.net preg_match(/false/i, $string) ? false : true; On Thu, Oct 21, 2010 at 7:39 PM, Gary php-gene...@garydjones.name wrote: Is there any nice way to convert a string containing either TRUE or FALSE to a bool with the appropriate value? I know I can just if (strcmp... but, as the song goes on to say ...ugly, so ugly, it's ugly[1] Footnotes: [1] Mask, Henry Rollins -- Gary -- 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] My truth comes out [1]
Whats wrong with an if *construct* ? I understand that the ternary operator is another way of doing it. Using it in such a small scenario is perfectly justifiable. Its ridiculous to use in more complicated scenarious because of readability issues. Direct string comparison? You suggested yet another function call, settype I believe. Please do not make benchmark claims without any data. On Thu, Oct 21, 2010 at 8:11 PM, a...@ashleysheridan.co.uk a...@ashleysheridan.co.uk wrote: Because it is an if statement, just in a different form, and preg_match is more computational expensive than a direct string comparison. Thanks, Ash http://www.ashleysheridan.co.uk - Reply message - From: Russell Dias rus...@gmail.com Date: Thu, Oct 21, 2010 11:03 Subject: [PHP] My truth comes out [1] To: a...@ashleysheridan.co.uk a...@ashleysheridan.co.uk Cc: php-general@lists.php.net I'm curious to know why 'thats as bad as an if' ? It's simple, concise, understandble and does the job. So, I'm curious to know why exactly its bad? On Thu, Oct 21, 2010 at 8:01 PM, a...@ashleysheridan.co.uk a...@ashleysheridan.co.uk wrote: That's as bad as an if! What about using settype() on the string? I've not tested it, but it looks like it should do the trick. Thanks, Ash http://www.ashleysheridan.co.uk - Reply message - From: Russell Dias rus...@gmail.com Date: Thu, Oct 21, 2010 10:51 Subject: [PHP] My truth comes out [1] To: php-general@lists.php.net preg_match(/false/i, $string) ? false : true; On Thu, Oct 21, 2010 at 7:39 PM, Gary php-gene...@garydjones.name wrote: Is there any nice way to convert a string containing either TRUE or FALSE to a bool with the appropriate value? I know I can just if (strcmp... but, as the song goes on to say ...ugly, so ugly, it's ugly[1] Footnotes: [1] Mask, Henry Rollins -- Gary -- 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 -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] My truth comes out [1]
On Thu, Oct 21, 2010 at 08:15:40PM +1000, Russell Dias wrote: Whats wrong with an if *construct* ? I understand that the ternary operator is another way of doing it. Using it in such a small scenario is perfectly justifiable. Its ridiculous to use in more complicated scenarious because of readability issues. It depends on what the output is. If it actually is either TRUE or FALSE then it would be fine. Direct string comparison? You suggested yet another function call, settype I believe. Please do not make benchmark claims without any data. You use preg_match which loads the PCRE library which obviously is overkill here. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] My truth comes out [1]
On 21 October 2010 10:39, Gary php-gene...@garydjones.name wrote: Is there any nice way to convert a string containing either TRUE or FALSE to a bool with the appropriate value? I know I can just if (strcmp... but, as the song goes on to say ...ugly, so ugly, it's ugly[1] Footnotes: [1] Mask, Henry Rollins [1] Ugh! Ugly Houses, Chumbawamba. -- Richard Quadling Twitter : EE : Zend @RQuadling : e-e.com/M_248814.html : bit.ly/9O8vFY -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] My truth comes out [1]
On 21 October 2010 10:39, Gary php-gene...@garydjones.name wrote: Is there any nice way to convert a string containing either TRUE or FALSE to a bool with the appropriate value? I know I can just if (strcmp... but, as the song goes on to say ...ugly, so ugly, it's ugly[1] What is the response when the string is NOT TRUE or FALSE? -- Richard Quadling Twitter : EE : Zend @RQuadling : e-e.com/M_248814.html : bit.ly/9O8vFY -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] My truth comes out [1]
On 21 October 2010 12:42, Richard Quadling rquadl...@gmail.com wrote:
On 21 October 2010 10:39, Gary php-gene...@garydjones.name wrote:
Is there any nice way to convert a string containing either TRUE or
FALSE to a bool with the appropriate value? I know I can just if
(strcmp... but, as the song goes on to say ...ugly, so ugly, it's ugly[1]
What is the response when the string is NOT TRUE or FALSE?
?php
$s_OriginalValue = 'FALSE';
$b_Test = in_array($s_Test = strtolower($s_OriginalValue),
array('true', 'false')) ? !!strcmp($s_Test, 'false') : null;
var_dump($b_Test);
$s_OriginalValue = 'TRUE';
$b_Test = in_array($s_Test = strtolower($s_OriginalValue),
array('true', 'false')) ? !!strcmp($s_Test, 'false') : null;
var_dump($b_Test);
$s_OriginalValue = 'GARBAGE';
$b_Test = in_array($s_Test = strtolower($s_OriginalValue),
array('true', 'false')) ? !!strcmp($s_Test, 'false') : null;
var_dump($b_Test);
?
outputs ...
bool(false)
bool(true)
NULL
But, really? What's wrong with if()?
--
Richard Quadling
Twitter : EE : Zend
@RQuadling : e-e.com/M_248814.html : bit.ly/9O8vFY
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Re: [PHP] My truth comes out [1]
Really interesting thread :D . Why go for other methods when you can do it easily using if Is this an exercise or something? Midhun Girish Development Lead MobAlive Technologies Trivandrum
Re: [PHP] My truth comes out [1]
settype looks like a no-go for this; per the php docs... http://php.net/manual/en/function.settype.php -- $bar = true; // boolean settype($bar, string); // $bar is now 1 (string) -- I think using a conditional here is the best (only?) way. $bool = (strtolower($string)=='true')? true: false; and if the default should be true... $bool = (strtolower($string)=='false')? false: true; If you you're going to use it a lot then wrap it in a function. Also, (as was stated) preg_ is overkill here. php has a lot of nifty string functions that should be taken advantage of before jumping onto regex. Chris. On Thu, Oct 21, 2010 at 6:01 AM, a...@ashleysheridan.co.uk a...@ashleysheridan.co.uk wrote: That's as bad as an if! What about using settype() on the string? I've not tested it, but it looks like it should do the trick. Thanks, Ash http://www.ashleysheridan.co.uk - Reply message - From: Russell Dias rus...@gmail.com Date: Thu, Oct 21, 2010 10:51 Subject: [PHP] My truth comes out [1] To: php-general@lists.php.net preg_match(/false/i, $string) ? false : true; On Thu, Oct 21, 2010 at 7:39 PM, Gary php-gene...@garydjones.name wrote: Is there any nice way to convert a string containing either TRUE or FALSE to a bool with the appropriate value? I know I can just if (strcmp... but, as the song goes on to say ...ugly, so ugly, it's ugly[1] Footnotes: [1] Mask, Henry Rollins -- Gary -- 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] My truth comes out [1]
On Thu, Oct 21, 2010 at 5:39 AM, Gary php-gene...@garydjones.name wrote:
Is there any nice way to convert a string containing either TRUE or
FALSE to a bool with the appropriate value? I know I can just if
(strcmp... but, as the song goes on to say ...ugly, so ugly, it's
ugly[1]
Footnotes:
[1] Mask, Henry Rollins
--
Gary
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You don't need an 'if', and you don't need to add a function call to the
stack:
$value_to_convert = 'TRUE'; // tested with true, but works with false, too
$bool = ('TRUE' == $value_to_convert);
This does require that you've sanity checked the value before hand, as your
either TRUE or FALSE statement implies.
Adam
--
Nephtali: PHP web framework that functions beautifully
http://nephtaliproject.com
