Write a FOR loop in PHP that prints the numbers 0-9 to the page.

[Salathe]

for (
    $time = (string) strtotime('Fri, 13 Feb 2009 23:31:30 GMT'),
    $time = substr($time, -1).substr($time, 0, -1),
    $len  = strlen($time),
    $pos  = 0;
    $pos < $len;
    print($time[$pos++])
); 

Any solution using Friday the 13th has got to be worth a good mark.

[AnthonySterling]

I'm surprised there has been no binary shenanigans!

<?php
for($i=0;$i<=9;$i++){
$aData = explode('2','02121021121002101211021112100021001');
echo bindec($aData[$i]).'<br />';
}
?>

[Stormrider]

Mine was kind of binary... just used for loops to generate the binary string then convert :P

[Iimitk]

$i = 0;
do {
    echo "$i ";
    $i++;
} while ($i <= 9); // $i < 10 will print 10. 

Off Topic:

Too bad there's no longer Funniest Thread of The Year award.

[QMonkey]

Meets the technical requirements but obviously not the intent.

try{
    for($i='Q'; $i<17; $i++) {
        throw new Exception('Monkey');
    }
}
catch (Exception $e) {
    echo '0123456789';
} 

[Stormrider]

only you forgot to output '0' :P

Rather a strange way of doing it, but interesting anyway

We should have 'obscure ways of solving problems' threads...

[QMonkey]

Ah, yes. 0-9 I edited it to help anyone in the future looking for this very useful solution.

[registrant]

Some simple solutions:

 
for ($ord = 48; $ord < 58; $ord++) {
    echo chr($ord);
}
 
for ($nums = range(9, 0); !is_null($n = array_pop($nums)); print($n));
 
for (print('0123456789'); 0;);
 
for ($str = '0123456789', print($str); isset($str);) {
    unset($str);
}
// var:
for ($str = '0123456789', print($str), $str = ''; isset($str);) 

[DelvarWorld]

No OOP yet?!

Class Counter {
    public $count = 0;
    function countMe() {
        echo $count;
        return this;
    }
    function addMe() {
        $this->count++;
    }
}

$counter = new Counter();
for($i = 0; $i < 10; $++) {
    $counter->countMe()->addMe();
} 

(thorougly untested)


Also, people posting do and do/while loops will be banned from this forum for not following the thread rules. You are providing misleading information to newcomers .

[Iimitk]

This thread is starting to get really inspiring.

I nominate it for highlighting.

[registrant]

Delvar-
I fixed yours up so it runs, and put it all into a for loop:

 
for ($i = 0; $i < 10; $i++) {     
    if (!isset($counter)) {
        class Counter 
        {     
            public $count = 0;     
            function countMe() 
            {         
                echo $this->count;         
                return $this;     
            }     
            function addMe() 
            {
                $this->count++;     
            } 
        }
        $counter = new Counter(); 
    }  
    $counter->countMe()->addMe(); 
} 

[DelvarWorld]

Delvar-
I fixed yours up so it runs, and put it all into a for loop:

I had no idea you could declare a class inside a for loop. That's frightening.

[Stormrider]

Yeh, although it's fairly pointless since PHP doesn't have lexical scope (yet).

[AnthonySterling]

Ha, and still no reply from the OP.

[spikeZ]

He is probably in a state of shock!

[Stormrider]

for($i=print("01");$i^bindec(1001);print($i^=$i&~-~$i|~$i&-~$i)); 

[spikeZ]

I nominate it for highlighting.

Thread now featured on the home page

[akritic]

Off Topic:


Well, you guys should think of having a monthly PHP challenge - a simple problem + the interesting/obscure ways of implementing it... would probably be a popular thing

[Stormrider]

I thought of that above I think it would be good fun!

[C. Ankerstjerne]

function check($integer, $beginning, $end) {
 if(is_int($integer)) {
  if(($integer >= $beginning) && ($integer <= $end)) {
   return true;
  }
  else {
   return false;
  }
 }
 else {
  return false;
 }
}
 
function write($string) {
 echo $string;
}
 
function loop($beginning, $end) {
 for($integer = $beginning; $integer < ($end + 1); $integer++) {
  if(check($integer)) {
   write($integer);
  }
  else {
   write("Something went terribly wrong!");
  }
 }
}
 
loop(0, 9);

[Stormrider]

function check($integer, $beginning, $end) {
 if(is_int($integer)) {
  if(($integer >= $beginning) && ($integer <= $end)) {
   return true;
  }
  else {
   return false;
  }
 }
 else {
  return false;
 }
}
 
function write($string) {
 echo $string;
}
 
function loop($beginning, $end) {
 for($integer = $beginning; $integer < ($end + 1); $integer++) {
  if(check($integer)) {
   write($integer);
  }
  else {
   write("Something went terribly wrong!");
  }
 }
}
 
loop(0, 9);

Surely this won't work at all, since you don't pass a beginning or end to check() :P

Corrected:

function check ($integer, $beginning, $end) {
 if (is_int($integer)) {
  if (($integer >= $beginning) && ($integer <= $end)) {
   return true;
  } else {
   return false;
  }//if
 } else {
  return false;
 }//if
}//function

function write ($string) {
 echo $string;
}//function

function loop ($beginning, $end) {
 for ($integer = $beginning; $integer < ($end + 1); $integer++) {
  if (check($integer, $beginning, $end)) {
   write($integer);
  } else {
   write("Something went terribly wrong!");
  }//if
 }//for
}//function

loop(0, 9); 

[AnthonySterling]

for($i=print("01");$i^bindec(1001);print($i^=$i&~-~$i|~$i&-~$i)); 

Bravo!

[ionix5891]

i may as well join in the fun with my "elegant" solution to this riddle!

$lol = '0123456789'; 
for ( $i=0; $i<strlen($lol);  $i++ ){    
   print $lol{$i}.'<br />';    
} 

[Stormrider]

for($i=print(0);$i<=9;$i+=print($i));
for($i=print(0);$i++<=9;$i+=print(--$i)); 

[Amenthes]

A little bit of recursion:

function funny($i = 10) {
    if (! $i) return;
    funny($i - print($i - 10));
}