CakeFest 2017 NYC, the Official CakePHP Conference

break

break deyimi, for, foreach, while, do-while ve switch yapılarının çalışmasını sonlandırmak için kullanılır.

break deyiminde istenirse bir sayısal ifade belirtilebilir. Bu sayı iç içe yapılardan içten dışa kaç yapının aynı anda durdurulacağını belirler.

<?php
$arr 
= array('sıfır''bir''iki''üç''dur''dört''beş');
while (list(, 
$val) = each($arr)) {
    if (
$val == 'dur') {
        break;    
/* Burada 'break 1;' de yazabilirsiniz. */
    
}
    echo 
"$val<br />\n";
}

/* Sayısal değer kullanımı. */

$i 0;
while (++
$i) {
    switch (
$i) {
    case 
5:
        echo 
"5'de<br />\n";
        break 
1;  /* Yalnızca switch'ten çıkar. */
    
case 10:
        echo 
"10'da; çıkılıyor<br />\n";
        break 
2;  /* switch ve while'dan aynı anda çıkılır. */
    
default:
        break;
    }
}
?>

add a note add a note

User Contributed Notes 4 notes

up
110
steve at electricpocket dot com
4 years ago
A break statement that is in the outer part of a program (e.g. not in a control loop) will end the script. This caught me out when I mistakenly had a break in an if statement

i.e.

<?php
echo "hello";
if (
true) break;
echo
" world";
?>

will only show "hello"
up
13
traxer at gmx dot net
11 years ago
vlad at vlad dot neosurge dot net wrote on 04-Jan-2003 04:21

> Just an insignificant side not: Like in C/C++, it's not
> necessary to break out of the default part of a switch
> statement in PHP.

It's not necessary to break out of any case of a switch  statement in PHP, but if you want only one case to be executed, you have do break out of it (even out of the default case).

Consider this:

<?php
$a
= 'Apple';
switch (
$a) {
    default:
        echo
'$a is not an orange<br>';
    case
'Orange':
        echo
'$a is an orange';
}
?>

This prints (in PHP 5.0.4 on MS-Windows):
$a is not an orange
$a is an orange

Note that the PHP documentation does not state the default part must be the last case statement.
up
4
RK
6 years ago
If the numerical argument is higher than the number of things which can be broken out of, it seems to me like the execution of the entire program is stopped.
My program had 8 nested loops. Didn't bother counting them, but wrote: break 10. - Result: Code following the loops was not processed.
up
0
Anonymous
10 years ago
If you wonder how to end execution of a function (as I did), it's that simple: return

function foo($a) {
if(!$a) return;
echo 'true';
// some other code
}

foo(true) will echo 'true', foo(false) won't echo anything (as return ends execution of the function. Of course, therefore there is no need for 'else' before 'echo').
To Top