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suatyee ng
3,040 PointsPHP, array_reverse the first element is showing the word "array"
This block of code creates an array of ice cream flavors and displays them in ascending order. The owner of the ice cream shop would like this order changed so that the flavors are displayed in descending order instead, starting with Cookie Dough first and Jalapeno So Spicy last. Leave the $flavors array itself in the same order, but modify something else in this code block to achieve that.
<html> <body> <?php
$flavors = array( "Jalapeno So Spicy", "Avocado Chocolate", "Peppermint", "Vanilla", "Cake Batter", "Cookie Dough" );
?> <ul> <?php
$list_html = array_reverse($flavors);
foreach($list_html as $flavor) {
$list_html = $list_html . "<li>";
$list_html = $list_html . $flavor;
$list_html = $list_html . "</li>";
}
echo $list_html;
?> </ul> </body> </html>
The output is correct, however my first element always shows the word "array" how do i remove it? I tried to use array_shift() however it didn't work.
7 Answers
Spen Taylor
13,027 PointsHi Suatyee! I know you've solved your own problem, but just so that you understand what was originally going wrong I'll explain anyway :) - I always hate moving on when I'm still not sure of something!
Ok, so your ForEach iterates over your array, writing the code within the ForEach block for each item in the array ("Jalapeno So Spicy", "Avocado Chocolate", etc. ).
So each iteration ADDS <li> $flavor </li> to the end of $list_html.
The reason you had "array" appear at the beginning, before the first
<li> $flavor </li>
is that, before the ForEach started, you had set the value of $list_html to the array.
So before the ForEach had even started, $list_html already had the value of the array, which was then added too with the ForEach.
When you've changed the variable name, depending on which ones you've changed, you are likely not setting the value of the variable that is added to, to array first.
Hope this makes sense!
Spen Taylor
13,027 PointsAlso, I don't know if the tutorial your working on says to do this, but you'll see later, in the Shirts for Mike project that when writing html with a ForEach you'll start with something like this :
$list_html = "";
ForEach.....
$list_html = $list_html . "<li>";
........
notice that $list_html is set to "" which of cause is an empty string
suatyee ng
3,040 PointsOh! so you have to ensure that the $list_html is empty first, or else it will have the value of "array" right? thanks!
Spen Taylor
13,027 Pointsyou got it :)
Hass Beydoun
8,625 PointsThat is the best answer:
$flavors = array( "Jalapeno So Spicy", "Avocado Chocolate", "Peppermint", "Vanilla", "Cake Batter", "Cookie Dough" );
?> <ul> <?php $flavors_reverse = array_reverse($flavors);
$list_html = "";
foreach($flavors_reverse as $flavor) {
$list_html = $list_html . "<li>";
$list_html = $list_html . $flavor;
$list_html = $list_html . "</li>";
}
echo $list_html;
?> </ul> </body> </html>
However I wish sometimes they explain the problem better
aaron durber
13,400 PointsHi
i am having problems with this too. my code is
<html> <body> <?php
$flavors = array( "Jalapeno So Spicy", "Avocado Chocolate", "Peppermint", "Vanilla", "Cake Batter", "Cookie Dough" );
?> <ul> <?php $list_html = array_reverse($flavors); foreach($flavors as $flavor) { $list_html = $list_html . "<li>"; $list_html = $list_html . $flavor; $list_html = $list_html . "</li>"; } echo $list_html;
?> </ul> </body> </html>
it will display the list but the code test fails me. Could anyone help please
Juliano Vargas
Courses Plus Student 15,575 Points$reversed_flavors = array_reverse($flavor); then loop the new variable that will do.
Hass Beydoun
8,625 PointsThat is the best answer:
$flavors = array( "Jalapeno So Spicy", "Avocado Chocolate", "Peppermint", "Vanilla", "Cake Batter", "Cookie Dough" );
?> <ul> <?php $flavors_reverse = array_reverse($flavors);
$list_html = "";
foreach($flavors_reverse as $flavor) {
$list_html = $list_html . "<li>";
$list_html = $list_html . $flavor;
$list_html = $list_html . "</li>";
}
echo $list_html;
?> </ul> </body> </html>
However I wish sometimes they explain the problem better
Scott Buendia
15,415 PointsHey there,
I got this problem fixed by putting the array_reverse command in the foreach area. A little weird, but it is () inside of a (). I'm trying to be vague on purpose so I don't give away the answer right away.
Scott Buendia
15,415 PointsHey there,
I got this problem fixed by putting the array_reverse command in the foreach area. A little weird, but it is () inside of a (). I'm trying to be vague on purpose so I don't give away the answer right away.
suatyee ng
3,040 Pointssuatyee ng
3,040 PointsI solved the question by changing the $list_html to $test, it works the word "array" doesn't printout anymore.. but i don't understand why haha.