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PHP PHP Arrays and Control Structures PHP Loops For Looping

james tarala
james tarala
1,370 Points
Posted by james tarala
james tarala
1,370 Points

For Loop and "isset"

I was wondering why the code I am trying to submit is not working? I believe the "For Loop" is accurate, even the integer association of my first "echo" portion.

Any help will be greatly appreciated!

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; $i++) {
  if (isset($facts)) {
    echo "$i . $facts[$i]</ br>\n";
  } else {
    echo "$i</ br>\n"
  }
};

?>

2 Answers

Sam Wilson
Sam Wilson
2,619 Points
Sam Wilson
Sam Wilson
2,619 Points

Hi James,

Currently learning PHP also, I've copied your code over onto my workspace and there are a few small errors, however code as a whole is good!

Firstly, where you use the isset function it should read (isset($facts[$i])) as you are using the value of $i to point to a key within your array.

Secondly, your line breaks are the wrong way round :) , for example you have wrote " echo "$i </ br> \n" this should read "echo $i <br /> \n" to correctly create breaks and new lines.

Last off , on your final else echo line you have missed off a ';' after your echo statement, after changing these in your code it displays all good!

Also - I'm not sure if the fullstop is needed after you echo "$i" in your first if statement, I'm not sure if the challenge will see the correct output.

Correct code:

<?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]<br />\n";
  } else {
    echo "$i<br /> \n";
  }
}