Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

PHP PHP Arrays and Control Structures PHP Loops For Looping

Pepijn Dekker
Pepijn Dekker
Courses Plus Student 5,231 Points

Use the function isset to test if the incremented value equals one of the keys in the $facts array.

Use the function isset to test if the incremented value equals one of the keys in the $facts array. If there is a key that matches, display the value AFTER the number. NOTE: all numbers between 1 and 100 should still be displayed

X Bummer! Make sure the fact is displayed directly after the number.

Any ideas as to what I'm missing?

$facts = array(
    57 => ' on Heinz ketchup bottles represents the number of varieties of pickles the company once had.',
    2 => ' is the approximate hours a day Giraffes sleeps',
    18 => ' is the average hours a Python sleeps per day',
    10 => ' per cent of the world is left-handed.',
    11 => ' Empire State Buildings, stacked one on top of the other, would be required to measure the Gulf of Mexico at its deepest point.',
    98 => '% of the atoms in your body are replaced every year',
    69 => ' is the largest number of recorded children born to one woman',
//add your loop below this line
for ($i = 1; $i <= 100; $i++){
  echo $i . "\n";

    echo $facts[$i];
  echo "<br />";

1 Answer

28,558 Points

It's not so much that something is missing, quite the opposite. The task wants the fact to come directly after the number (with nothing between them), you have placed a line break after the number which the task did not ask you to do. That is what causes the code checker to mark your code as wrong.

If you remove the line break from the number echo statement then your code will work.

Pepijn Dekker
Pepijn Dekker
Courses Plus Student 5,231 Points

Thx. That did the trick. Weird that it wouldn't catch that in part 1 of this challenge.

28,558 Points

The code checker runs different tests for different tasks, and those tests aren't always consistent with each other. This is far from the only case I have seen where it accepts code in one task and then rejects it in the next.

That's sadly just how it works currently.