PHP - Break by level
Introduction
When using the break statement with nested loops, you can pass an optional numeric argument to indicate how many levels of nesting to break out of.
For example:
Demo
<?php
// Break out of the inner loop when $units == 5
for ( $tens = 0; $tens < 10; $tens++ ) {
for ( $units = 0; $units < 10; $units++ ) {
if ( $units == 5 ) break 1;
echo $tens . $units . " \n ";
}//from www . j av a 2s . c o m
}
// Break out of the outer loop when $units == 5
for ( $tens = 0; $tens < 10; $tens++ ) {
for ( $units = 0; $units < 10; $units++ ) {
if ( $units == 5 ) break 2;
echo $tens . $units . " \n ";
}
}
?>
Result
