Methods and simple examples of while loop control in php

This article mainly introduces the while loop control method and simple examples in php. Interested friends can refer to it. I hope it will be helpful to everyone.

The while loop is the simplest loop in PHP. Its basic format is:

while (expr){ 
  statement 
}

or

while (expr): 
  statement 
endwhile;

This syntax indicates that as long as the expr expression is TRUE, the statement will be executed until expr is FALSE. The statement indicates the action or logic to be executed.

<?php 
$i = 1; 
while ($i <= 10) { 
  echo $i; 
  $i++; 
} 
?>

This example loops out 1 to 10.

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