Explain working of loops in array.

Answer in Brief

Using 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, the next element will be processed.

Example:

<?php
$Student_name = arrayO’Magilan”, “Iniyan”, “Nilani” “Sibi” “Shini”); foreach ($Student_name as $value) { echo “$value <br>”;
}
?>

Using For Loop:

To loop through and print all the values of an indexed array.

Example:

<?php$cars = arrayC’Volvo”, “BMW”, “Toyota”);
$arrlength = count(cars);
for($x = 0; $x < $arrlength; $x++){
echo $cars[$x];
echo “<br>”;
}
?>

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Looping Structure

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Chapter 7: Looping Structure - Evaluation - PART – IV [Page 118]

Chapter 7 Looping Structure
Evaluation - PART – IV | Q 5. | Page 118

Which loop evaluates condition expression as Boolean, if it is true, it executes statements and when it is false it will terminate?

What will be displayed in a browser when the following PHP code is executed;

<?php
for ($counter = 10; $counter < 10;
$counter = $counter + 5){
echo “Hello”;
 }
?>

PHP supports which types of looping techniques ______.

What will be the output of the following PHP code?

<?php
for ($x = -1; $x < 10;--$x)
{
print $x;
}
?>

Define for loop in PHP.

Write Syntax of For loop in PHP.

Write Syntax of Do while loop in PHP.

Write the purpose of Looping Structure in PHP.

Differentiate For each and While loop.

Write short notes on Do while Loop.