PHP foreach loop

In this lesson, you will learn about the foreach loop in PHP, and its usage, along with examples to better understand the topic.

foreach loop in PHP

In PHP, the foreach loop provides an easy way to loop over an array. In every loop iteration, the value of the current array element is allocated to the $value variable, and the array pointer is shifted by one until it reaches the last array element.

Syntax of the foreach loop

<?php
foreach ($arrVar as $arrValues)
{
    //block of code to be processed here
    
}
?>

foreach Loop Flowchart

Example

<?php
echo "PHP ***Foreach loop***example";
echo "<br>";
echo " ------------Foreach loop ------------------ ";
echo "<br>";
echo "Names of countries in the array";
echo "<br>";
$country = array(
    "Canada",
    "America",
    "New Zealand"
);
// Loop through country array
foreach ($country as $value)
{
    echo $value . "<br>";
}
?>

Output

PHP ***Foreach loop*** example
------------Foreach loop ------------------
Names of countries in the array
Canada
America
New Zealand

Let’s take another instance through an associative array that loops. An associative array for access keys utilizes alphanumeric phrases.

Associative Array Example

<?php
echo "PHP ***Associative Foreach loop***example";
echo "<br>";
echo " ------------foreach loop ------------------ ";
echo "<br>";
$subjectteacher = array(
    "Sarah" => "Math",
    "Smith" => "English",
    "Zain" => "Science"
);
foreach ($subjectteacher as $key => $value)
{
    echo "$key teaches $value" . "<br>";
}
?>

Output

PHP ***Associative Foreach loop***example
------------foreach loop ------------------
Sarah teaches Math
Smith teaches English
Zain teaches Science

In the above example, the teacher names have been used as array keys and subjects as the values.

This concludes the PHP foreach Loop lesson. In the next lesson, we will teach about another type of loop in PHP, the while loop!