PHP Foreach Loop

The foreach statement is used to loop through arrays. For each pass, the value of the current array element is assigned to $value and the array pointer is moved by one and in the next pass next element will be processed.

Syntax

foreach (array as value) {
   code to be executed;
}

foreach Loop Explanation

• foreach(…){…} : is the foreach PHP loop block code
• $array_data: is the array variable to be looped through
• $array_value: is the temporary variable that holds the current array item values.
• block of code: is the piece of code that operates on the array values

Example 1:

<?php
$days= array("Sunday", "Monday", "Tuesday");
// Loop through colors array
foreach($days as $value){
    echo $value . "<br>";
}
?>

Output :

Sunday
Monday
Tuesday

Example 2:

<?php
$Mydata= array(
    "name" => "Admin",
    "email" => "admin@esaytolearning.com",
    "age" => 22
);
// Loop through Mydata array
foreach($Mydataas $key => $value){
    echo $key . " : " . $value . "<br>";
}
?>

Output :

name : Admin
email : admin@easytolearning.com
age : 22

PHP Nested For Loop

We can use for loop inside for loop in PHP, it is known as nested for loop.

Nested for loop is executed fully for one outer for loop. If outer for loop is to be executed 3 times and inner for loop for 3 times, inner for loop will be executed 9 times (3 times for 1st outer loop, 3 times for 2nd outer loop and 3 times for 3rd outer loop).

Example 1:

<?php  
for($i=1;$i<=3;$i++){  
for($j=1;$j<=3;$j++){  
echo "$i   $j<br/>";  
}  
}  
?>  

Output :

1 1
1 2
1 3
2 1
2 2
2 3
3 1
3 2
3 3

PHP foreach Loop,foreach loop statement,PHP nested for loop