break and continue statementsbreak statement in a while loop
while (true) {
$number = mt_rand(1, 10);
if ($number % 2 == 0) {
break; // exits the while loop and executes the echo statement next
}
}
echo("<p>\$number is: $number</p>\n"); // $number is between 1 and 10 and even
$number is: 8
break statement in a for loop
$number = 13;
$prime = true;
for ($i = 2; $i < $number; $i++) {
if ($number % $i == 0) {
$prime = false;
break; // exits for loop and executes the $result statement next
}
}
$result = ($prime) ? ' is ' : ' is not ';
echo("<p>$number $result prime</p>\n");
13 is prime.
for loop
echo("<p>");
for ($number = 1; $number <= 10; $number++) {
if ($number % 3 == 0) {
continue; // returns to start of for loop when number is not evenly divisable by 3
}
echo("\$number is not divisible by 3");
} // Only displays 1, 2, 4, 5, 7, 8, and 10
echo("</p>\n");
1 is not divisible by 3.
2 is not divisible by 3.
4 is not divisible by 3.
5 is not divisible by 3.
7 is not divisible by 3.
8 is not divisible by 3.
10 is not divisible by 3.
while loop
$number = 1;
echo("<p>");
while ($number <= 10) {
if ($number % 3 == 0) {
$number++;
continue; // returns to start of for while when number is not evenly divisable by 3
}
echo("$number<br />");
$number++;
} // Only displays 1, 2, 4, 5, 7, 8, and 10
echo("</p>\n");
1 is not divisible by 3.
2 is not divisible by 3.
4 is not divisible by 3.
5 is not divisible by 3.
7 is not divisible by 3.
8 is not divisible by 3.
10 is not divisible by 3.
break statement ends a loop. In other words, it jumps out of the loopcontinue statement ends the current iteration of a for or while loop, but allows the next iteration to proceed. In other words, it jumps to the start of the loop.break and continue statements apply only to the loop that they’re in.