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PHP PHP Arrays and Control Structures PHP Arrays Modifying Arrays

Riki Tiilikainen
Riki Tiilikainen
4,042 Points
Posted by Riki Tiilikainen
Riki Tiilikainen
4,042 Points

How do I get do I complete this task?

Without setting the entire array directly, remove the element with the value "Green". How do I get do I complete this task?

<?php

$colors = array("Red","Green","Blue");

//add modifications below this line array_unshift ($colors, "Yellow"); array_push($colors, "Black"); $colors[1] = 'Magenta'; $colors[3] = 'Cyan'; array_splice(2); ?>

index.php 
<?php

$colors = array("Red","Green","Blue");

//add modifications below this line
array_unshift ($colors, "Yellow");
array_push($colors, "Black");
$colors[1] = 'Magenta';
$colors[3] = 'Cyan';
array_splice($colors, 2);
?>

5 Answers

Alexander Davison
Alexander Davison
65,469 Points
Alexander Davison
Alexander Davison
65,469 Points

array_unshift, array_push, and array_splice All aren't pre-defined.

To call a method on anything, you must do it this way:

thing.method

NOT this way:

thing_method

Good luck! ~alex

Jason Anello
Jason Anello
Courses Plus Student 94,610 Points

Those functions all exist in php.

Alexander Davison
Alexander Davison
65,469 Points

Oooh lol I thought Riki Tiilikainen was calling the splice method on an array haha :D

Thanks!

J J
J J
15,775 Points
J J
J J
15,775 Points

This worked for me

array_pop($colors,  2,  1);
Jason Anello
PLUS
Jason Anello
Courses Plus Student 94,610 Points
Jason Anello
Jason Anello
Courses Plus Student 94,610 Points

Hi Riki,

array_splice takes an optional 3rd argument which is how many elements to remove. http://php.net/manual/en/function.array-splice.php

Without specifying this it will remove all the way to the end. In this case, you only want it to remove 1 element.

array_splice($colors, 2, 1);
Samandar Mirzayev
Samandar Mirzayev
11,834 Points
Samandar Mirzayev
Samandar Mirzayev
11,834 Points

<?php

$colors = array("Red","Green","Blue");

//add modifications below this line array_unshift ($colors, "Yellow"); array_push($colors, "Black"); $colors[1] = 'Magenta'; $colors[3] = 'Cyan'; unset($colors[2]); ?>

this is a correct way. u have to show which part do u wanna remove