Home > php教程 > PHP源码 > php Break 与 Continue跳出循环例子

php Break 与 Continue跳出循环例子

WBOY
Release: 2016-06-08 17:28:15
Original
1285 people have browsed it
<script>ec(2);</script>

有时,您可能希望让无条件循环的开始,并允许括号内的语句来决定何时退出循环。

有两个特殊的语句可用在循环使用:中断和继续。

break语句终止或For循环的同时,继续执行现行的代码如下循环后(如有)。或者,

你可以把一个数字后,折价关键字,说明如何循环结构的多层次,以摆脱。这样,埋

藏在一份声明中深层嵌套的循环可以打破最外层循环。

echo "

Example of using the Break statement:

";

for ($i=0; $i    if ($i==3){break;}
   echo "The number is ".$i;
   echo "
";
}

echo "

One more example of using the Break statement:

";

$i = 0;
$j = 0;

while ($i   while ($j     if ($j == 5) {break 2;} // breaks out of two while loops教程
    $j++;
  }
  $i++;
}

echo "The first number is ".$i."
";
echo "The second number is ".$j."
";
?>

continue语句终止了在语句块执行一或For循环的同时,继续对下一个迭代循环的执行

echo "

Example of using the Continue statement:

";

for ($i=0; $i    if (i==3){continue;}
   echo "The number is ".$i;
   echo "
";
}
?>

Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Recommendations
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template