On 30 June 2010 14:53, Shreyas Agasthya <shreyasbr@xxxxxxxxx> wrote: > http://www.php.net/manual/en/types.comparisons.php > The first table actually gives a very good understanding. > --Shreyas > > On Wed, Jun 30, 2010 at 7:05 PM, Richard Quadling <rquadling@xxxxxxxxx> > wrote: >> >> On 30 June 2010 14:23, Daniel P. Brown <daniel.brown@xxxxxxxxxxxx> wrote: >> > (Hint: isset != empty) >> >> More importantly ... >> >> isset != !empty >> >> $a = Null; >> $b = ''; >> // $c = undefined; >> $d = 'Hello'; >> >> isset($a) = False vs True = empty($a) >> isset($b) = True vs True = empty($b) >> isset($c) = False vs True = empty($c) >> isset($d) = True vs False = empty($d) >> >> >> >> -- >> ----- >> Richard Quadling >> "Standing on the shoulders of some very clever giants!" >> EE : http://www.experts-exchange.com/M_248814.html >> EE4Free : http://www.experts-exchange.com/becomeAnExpert.jsp >> Zend Certified Engineer : http://zend.com/zce.php?c=ZEND002498&r=213474731 >> ZOPA : http://uk.zopa.com/member/RQuadling >> >> -- >> PHP General Mailing List (http://www.php.net/) >> To unsubscribe, visit: http://www.php.net/unsub.php >> > > > > -- > Regards, > Shreyas Agasthya > empty() === !boolean() and isset() === !is_null() -- ----- Richard Quadling "Standing on the shoulders of some very clever giants!" EE : http://www.experts-exchange.com/M_248814.html EE4Free : http://www.experts-exchange.com/becomeAnExpert.jsp Zend Certified Engineer : http://zend.com/zce.php?c=ZEND002498&r=213474731 ZOPA : http://uk.zopa.com/member/RQuadling -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
