break(PHP 4, PHP 5, PHP 7)
break ends execution of the current
for, foreach,
while, do-while or
switch structure.
break accepts an optional numeric argument
which tells it how many nested enclosing structures are to be
broken out of. The default value is 1, only
the immediate enclosing structure is broken out of.
<?php
$arr = array('one', 'two', 'three', 'four', 'stop', 'five');
foreach ($arr as $val) {
if ($val == 'stop') {
break; /* You could also write 'break 1;' here. */
}
echo "$val<br />\n";
}
/* Using the optional argument. */
$i = 0;
while (++$i) {
switch ($i) {
case 5:
echo "At 5<br />\n";
break 1; /* Exit only the switch. */
case 10:
echo "At 10; quitting<br />\n";
break 2; /* Exit the switch and the while. */
default:
break;
}
}
?>
| Version | Description |
|---|---|
| 7.0.0 |
break outside of a loop or switch
control structure is now detected at compile-time instead of run-time as
before, and triggers an E_COMPILE_ERROR.
|
| 5.4.0 |
break 0; is no longer valid. In previous versions it was interpreted
the same as break 1;.
|
| 5.4.0 |
Removed the ability to pass in variables (e.g., $num = 2; break $num;)
as the numerical argument.
|