您可以“退出" PHP中的循环吗? [英] Can you 'exit' a loop in PHP?

问题描述

我有一个循环正在我的PHP代码中进行一些错误检查.原来看起来像这样...

I have a loop that is doing some error checking in my PHP code. Originally it looked something like this...

foreach($results as $result) {
    if (!$condition) {
        $halt = true;
        ErrorHandler::addErrorToStack('Unexpected result.');
    }

    doSomething();
 }

if (!$halt) {
    // do what I want cos I know there was no error
}

这一切都很好，但是尽管有一个错误，它仍然可以循环通过.有没有办法摆脱循环?

This works all well and good, but it is still looping through despite after one error it needn't. Is there a way to escape the loop?

推荐答案

您正在寻找 break 声明.

$arr = array('one', 'two', 'three', 'four', 'stop', 'five');
while (list(, $val) = each($arr)) {
    if ($val == 'stop') {
        break;    /* You could also write 'break 1;' here. */
    }
    echo "$val<br />\n";
}

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