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PHP PHP Arrays and Control Structures PHP Loops For Looping

nicholasgryczewski
nicholasgryczewski
2,919 Points
Posted by nicholasgryczewski
nicholasgryczewski
2,919 Points

Use the function isset to test if the incremented value equals one of the keys in the $facts array.

Use the function isset to test if the incremented value equals one of the keys in the $facts array. If there is a key that matches, display the value AFTER the number.

NOTE: all numbers between 1 and 100 should still be displayed

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 $i;}
if (isset($i)) {echo $i++;}
Fabien Morgan
Fabien Morgan
11,312 Points
Fabien Morgan
Fabien Morgan
11,312 Points

The solution is: for ($x = 1; $x <= 100; $x++) { echo "$x"; }

nicholasgryczewski
nicholasgryczewski
2,919 Points
nicholasgryczewski
nicholasgryczewski
2,919 Points

I already did that part but with $I instead of $x

Amber O'Rear
Amber O'Rear
7,791 Points

Do a search for this question, I asked it yesterday. The answer is there. for ( $i = 1; $i <= 100; $i++ ) { echo $i; if (isset($facts[$i])) { echo $facts[$i]; } }

2 Answers

Lee Ravenberg
Lee Ravenberg
10,018 Points
Lee Ravenberg
Lee Ravenberg
10,018 Points

When you are inside the loop, you need to check the presence of the number within the $facts array. You can use the isset() function for this.

Within the loop, you write isset($i), which evaluates if $i is set. But you are not evaluating if the $facts[$i] value is set.