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PHP PHP Arrays and Control Structures PHP Loops For Looping

Kieran Barker
Kieran Barker
15,028 Points
Posted by Kieran Barker
Kieran Barker
15,028 Points

How should I approach this?

I have absolutely no idea how to approach Challenge Task 2 of 2. Please can somebody tell me what I need to do?

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;
}

2 Answers

philippulbrich
philippulbrich
11,975 Points

Hi Kieran,

You've done everything right up to this point. Now you should check if one of the incremented values is one of the keys in the $facts array. In your for loop you have to check with an if statement whether the value is set (isset). 

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

If a "key" matches, you give the value after the number. 

{
    echo  "$facts[$i]";
  }

Best regards - phil 

<?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])){
    echo  "$facts[$i]";
  }

}
Kieran Barker
Kieran Barker
15,028 Points
Kieran Barker
Kieran Barker
15,028 Points

Thank you, Philipp! I think that makes sense... Some of these concepts seem illogical to me at first and quite difficult to grasp.

philippulbrich
philippulbrich
11,975 Points
philippulbrich
philippulbrich
11,975 Points

Don't worry, it's quite normal at first. Just keep going and practice. Then it's already working out.