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PHP PHP Arrays and Control Structures PHP Loops For Looping

Posted by Wouter Harmsen
Wouter Harmsen
6,999 Points

i dont get how i should display the value with the corresponding key if the isset() function is true.

if someone could provide me with the right code for this exercise, it would be awesome. im just stuck for to long and getting mad :P tnx!

index.php 
<?php
$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";
}
if(isset($i)){
    echo ??????????;

}

1 Answer

Jennifer Nordell
seal-mask
STAFF
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher
Jennifer Nordell
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

Hi there! You did great setting up your for loop so I'm going to give some hints here and see if you can get it accomplished.

  • Your if statement should be inside your for loop
  • The newline character in the first echo statement is not needed and will cause the challenge to fail
  • If $facts at an index of $i is set (isset) then echo out the value at that index
  • Make sure the value at the $facts[$i] is echoed out without any spacing or the challenge will fail

Hope this helps, but let me know if you're still stuck! :sparkles:

Wouter Harmsen
Wouter Harmsen
6,999 Points

i was able to solve it! i had to solution to display the facts all along but i thought it didnt work. but my if statement was not inside my for loop.

thank you for the hints!