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PHP Build a Simple PHP Application Listing Inventory Items Introducing Arrays

Yan Liu
Yan Liu
10,552 Points
Posted by Yan Liu
Yan Liu
10,552 Points

About ($letters as $letter) loop

Hi there,

As this part, learned

foreach ($letters as $letter) { }

But, why it is $letters as $letter ? I mean, where is the $letterS?

letters.php 
<?php



echo "My favorite ";
echo "2";
echo " letters are these: ";
echo "AB";
echo ".";

?>

1 Answer

Ryan Field
PLUS
Ryan Field
Courses Plus Student 21,242 Points
Ryan Field
Ryan Field
Courses Plus Student 21,242 Points

When we use arrays, it's customary to refer to the entire array as the plural of whatever each individual items are. So, if you have an array called $students, you would use a foreach loop to iterate through them like this:

<?php

$students = array("John", "Jane", "Glinda");

foreach ($students as $student) {
  echo "Student Name: " . $student;
}

?>

In this case, $students is a defined variable that holds a specific array. In the foreach loop, however, the variable $student is only a placeholder for the specific array item that is being echoed.