Re: Problems w/ goto

On Sat, Dec 18, 2010 at 12:45 PM, Geoffrey Bernardo Van Wyk <geoffrey.van.wyk@gmail.com> wrote: > Ethan, > > I tried to test your code, but I get this error next to the labels and goto > statements: As a 'professional' programmer, working for an entity, we deal with these problems as we go. As novices, we deal with it on a daily basis. As computer scientists, we think of it as a problem already solved, but in need of translation. Understand, buddy pal. > > Language feature not compatible with PHP version indicated in project > settings > > I have PHP 5.3.0. > > Geoffrey > >  _____ > > From: Ethan Rosenberg [mailto:ethros@earthlink.net] > Sent: 17 December 2010 06:39 PM > To: php-db-lists.php.net; php-general@lists.php.net > Subject: [PHP] Problems w/ goto > > > > Dear List - > > I am sending this again since it does not seem to have posted. > > Ethan > +++++++ > Dear List - > > Thank you with your excellent help in the past.  Here is another puzzler.... > > > I am trying to write a program that can have two(2) independent forms > in one PHP file.  When I run the code below [from PHP - A Beginner's > Guide], to which I have added a second form, it freezes.  Without the > goto statements, it runs.  When it does run, it displays both forms > on one Web screen. What I desire is for the first form to be > displayed, the data entered and then the second form displayed.  In > an actual, not test program like this one, the data in the second > form would be dependent on the first form. > > What did I do wrong? > > Thanks in advance. > > Here is the code: > > ================ > <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" >    "DTD/xhtml1-transitional.dtd"> > <html xmlns="http://www.w3.org/1999/xhtml" > xml:lang="en" lang="en"> >   <head> >     <title>Project 4-4: Age Calculator</title> >   </head> >   <body> >     <h2>Project 4-4: Age Calculator</h2> > <?php >     // if form not yet submitted >     // display form > > $ender = 0; > begin: > >         if($ender == 1) >                 exit(); >     if (!isset($_POST['dob'])) >     { > start1: > > echo "  <form method=\"post\" action=\"agecalc2.php\">"; > echo "  Enter your date of birth, in mm/dd/yyyy format: <br />"; > echo "  <input type=\"text\" name=\"dob\" />"; > echo "      <p>"; > echo "  <input type=\"submit\" name=\"submit\" > value=\"Submit\" />"; > echo "  </form>"; > > goto begin; >     // if form submitted >     // process form input >     } > else >     { > starter: > if (isset($_POST['cat'])) >         goto purr; >       // split date value into components >       $dateArr = explode('/', $_POST['dob']); > >       // calculate timestamp corresponding to date value >       $dateTs = strtotime($_POST['dob']); > >       // calculate timestamp corresponding to 'today' >       $now = strtotime('today'); > >       // check that the value entered is in the correct format >       if (sizeof($dateArr) != 3) { >         die('ERROR: Please enter a valid date of birth'); >       } > >       // check that the value entered is a valid date >       if (!checkdate($dateArr[0], $dateArr[1], $dateArr[2])) { >         die('ERROR: Please enter a valid date of birth'); >       } > >       // check that the date entered is earlier than 'today' >       if ($dateTs >= $now) { >         die('ERROR: Please enter a date of birth earlier than today'); >       } > >       // calculate difference between date of birth and today in days >       // convert to years >       // convert remaining days to months >       // print output >       $ageDays = floor(($now - $dateTs) / 86400); >       $ageYears = floor($ageDays / 365); >       $ageMonths = floor(($ageDays - ($ageYears * 365)) / 30); >       echo "You are approximately $ageYears years and $ageMonths months > old."; >       goto meow; >  } > > meow: >         if (!isset($_POST['dob'])) >                 goto begin; >     if (!isset($_POST['cat'])) >     { > > > echo "  <form method=\"post\" action=\"agecalc2.php\">"; > echo "  <br /><br />Enter your kitten's name: <br />"; > echo "  <input type=\"text\" name=\"cat\" />"; > echo "  <p>"; > echo "      <input type=\"submit\" name=\"submit\" > value=\"Submit > Kitten\" />"; > echo "    </form>"; > > } > else > { > purr: >         $name_cat = $_POST['cat']; > >         echo "Your Kitten is $name_cat"; >         $ender = 1; > } > if ($ender == 0) >         goto begin; > first_step: > ?> > >   </body> > </html> > > ============ > > Ethan > > MySQL 5.1  PHP 5  Linux [Debian (sid)] > > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > >  _____ > > No virus found in this message. > Checked by AVG - www.avg.com > Version: 10.0.1170 / Virus Database: 1435/3323 - Release Date: 12/18/10 > >