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PHP PHP Arrays and Control Structures PHP Loops For Looping

David Baker
David Baker
Courses Plus Student 14,543 Points

Challenge Task 2 of 2. Arrays and Control Structures within FOR loops

Totally lost here Team. How do I display the value after the number?

$facts = array(
    57 => ' on Heinz ketchup bottles represents the number of varieties of pickles the company once had.',
    2 => ' is the approximate hours a day Giraffes sleeps',
    18 => ' is the average hours a Python sleeps per day',
    10 => ' per cent of the world is left-handed.',
    11 => ' Empire State Buildings, stacked one on top of the other, would be required to measure the Gulf of Mexico at its deepest point.',
    98 => '% of the atoms in your body are replaced every year',
    69 => ' is the largest number of recorded children born to one woman',
//add your loop below this line
for ($i =1; $i<= 100; ++$i) {
        echo $i . "<br />\n";
    if (isset($facts)) {
            echo $facts;
David Baker
David Baker
Courses Plus Student 14,543 Points

Ross Holland, Thank you so much! Perfect,


1 Answer

THIS IS A STEP BY STEP EXPLANATION FOR EVERONE but you can just read step 3...

Hi there Dave!

Hope i can help you out here :) as i just did this like 1 hour ago.

so this is how i did it :

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

Explanation (step by step but your issue is at the bottom )=>

remember that $i is referring to the " key" in the associative array? 1.>> so all you are doing is displaying all numbers from 1 to 100 2.>> Then you are checking IF it just so happens to be TRUE that any of the numbers looped through when increasing $i (the number that is going up) also "coincidentally" ;) correlate with any of the Keys ( $facts[$i]) in the array $facts. 3.>> IF what i referred to above is true then... you are only displaying the actual fact which you refer to by echoing $facts[$i]. 4.>> Lastly you are adding a line break regardless of whether the conditional was true or false.