Loops – PHP Basics

Loop is used whenever you want a code to run over and over again in row. We use Loop instead of adding almost same codes many times.

Loop Statements :

Loop continues as long as the condition is true – while
Loop continues a code once and repeats loop until specified condition is true – do..while
Loop continues for a number of time – for
Loop continues block of code for each element in an array – foreach

While Loop :

<!DOCTYPE html>
 <html>
 <body>

<?php
 $x = 10;

while($x <= 20) {
 echo "The number is: $x <br>";
 $x++;
 }
 ?>

</body>
 </html>

Output :

 

 

 

 

do..while Loop :

<!DOCTYPE html>
 <html>
 <body>

<?php
 $x = 1;

do {
 echo "The number is: $x <br>";
 $x++;
 } while ($x <= 10);
 ?>

</body>
 </html>

Output :

 

 

 

for Loop :

<!DOCTYPE html>
 <html>
 <body>

<?php
 for ($a = 0; $a <= 10; $a++) {
 echo "code-projects.org <br>";
 }
 ?>

</body>
 </html>

Output :

foreach Loop :

<!DOCTYPE html>
 <html>
 <body>

<?php
 $lang = array("php", "python", "c++", "c#");

foreach ($lang as $value) {
 echo "$value <br>";
 }
 ?>

</body>
 </html>

Output :

 

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