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PHP PHP Arrays and Control Structures PHP Loops For Looping

Challenge 2 of 2 not passing in php arrays and control structures

This code is not passing and Im not sure why. Can you please help me?

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"; 
}

for ($i = 1; $i <= 100; $i++) {
    echo $i . "\n";
    if (isset($facts[$i])) {
        echo $i . $facts[$i] . "\n";
    }
}

2 Answers

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

Hi there! You have not one but two loops. The challenge only wants one. Also, you are echoing out i and then a new line. Then you check to see if i is set, and if it is, you echo out i again plus the trivia fact. So for 2, your output would look something like:

2
2  is the approximate hours a day Giraffes sleeps

This is not exactly what they're shooting for. Take another shot at it with these hints in mind! :sparkles:

Jennifer, thank's very much. I think this is what the challenge is asking for, but its not quite there yet either. What am I doing wrong?

<?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])) {
        echo $i . $facts[$i] . "\n";
    }
}
Jennifer Nordell
seal-mask
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

Chris Gauthier Now it's closer! Only this time, you're only echoing out i if the value is set for that index. We want the i echoed out regardless. This is how I did it:

for ($i = 1; $i <= 100; $i++) {
    echo $i;  // no matter what, echo out $i
    if (isset($facts[$i])) {    // if that index of the array has a value
        echo $facts[$i] . "\n";  // echo it out as well and then add a new line
    }
}

Hope this helps! :sparkles: