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

I do not see all the facts displayed

I am having a hard time trying to figure out how to get the the matching index from the array to be displayed from the for loop

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++){
  if(isset($facts)){
    echo $i;
  }

}

2 Answers

Thomas Dimnet
seal-mask
.a{fill-rule:evenodd;}techdegree seal-36
Thomas Dimnet
Python Development Techdegree Graduate 43,629 Points

Hi Gremyko, maybe your should to pass the value of your array like this:

<?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++){
  if(isset($facts[$i])) { // here is the little edit you need to see
    echo $facts[$i]; // here is what you need to add
  }
}

Tell if it works for you :)

Thank you, I finally figure it out, I was suppose to leave echo $i; , above the if statement but after the start of the for loop

for($i=1;$i<=100;$i++){

echo $i;

if(isset($facts[$i])) {

echo $facts[$i]; 

} }