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PHP PHP Arrays and Control Structures PHP Loops For Looping

Posted by Edmond Musaruro
Edmond Musaruro
1,736 Points

loops

Within the FOR loop, after displaying the number, add a conditional that uses the function isset (see documentation) 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

i wrote the isset function but im getting a bummer saying i do not see all the facts displayed how do i solve that?

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 $i;
  if (isset($facts[$i]));
}

2 Answers

Yohan Park
Yohan Park
7,148 Points
Yohan Park
Yohan Park
7,148 Points

Your if statement checks if there's a match but doesn't have code to execute. Add {echo $facts[$i];} to your if.

//add your loop below this line
for ( $i = 1; $i <= 100; $i++ ) {
echo $i;
  if (isset($facts[$i])){
    echo $facts[$i];
  };
}