Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

PHP PHP Arrays and Control Structures PHP Loops For Looping

Cliff Jackson
Cliff Jackson
2,887 Points

Lost in for Loop challenge

Struggling with loops from the start and this has thrown me even more. Don't know whether to use count function or do i need to sort the array first. I am close to cancelling my subs now as i find the PHP instructor lazy just copying and pasting old code into loops which is just confusing. Plus these code challenges are forever poorly explained.

index.php
<?php
$facts = array(
    57 => ' on Heinz ketchup bottles represents the number of varieties of pickles the company once had.',
    2 => ' is the approximate hours a day Giraffes sleeps',
    18 => ' is the average hours a Python sleeps per day',
    10 => ' per cent of the world is left-handed.',
    11 => ' Empire State Buildings, stacked one on top of the other, would be required to measure the Gulf of Mexico at its deepest point.',
    98 => '% of the atoms in your body are replaced every year',
    69 => ' is the largest number of recorded children born to one woman',
);
//add your loop below this line
for ($facts = 1; $facts < 101; $facts++) {
    echo "$facts";
}

4 Answers

Sajid Latif
seal-mask
.a{fill-rule:evenodd;}techdegree
Sajid Latif
Full Stack JavaScript Techdegree Student 22,368 Points

Here is your answer. I would recommend to make a filter, so only the $i = key value is showing. The output you have now is with a lot of white spaces. I can't log into to the challenge to replicate your issue, so hope you can use my answer. Remember that $facts is an array and to get the value out you need to do $facts[$i].

Your fix would work here but not the best way in my oppinion. I would use FOREACH loop. Look further down

<?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 < 101; $i++) {
    echo $facts[$i] . '<br>';
}

FOREACH loop

<?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

foreach($facts as $key => $item) {
    echo $facts[$key] . '<br>';
};
Jeff Wilton
Jeff Wilton
16,633 Points

I think you should create a new variable for the for loop, instead of re-using the $facts variable:

for ($i = 1; $i < 101; $i++) {
    echo $i;
}
Cliff Jackson
Cliff Jackson
2,887 Points

Thanks i was almost correct but the question is rather vague to me about creating a new variable

Cliff Jackson
Cliff Jackson
2,887 Points

Thanks for the answer but the question did specify a FOR loop to be used on the task, but the foreach does work on this too.