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关于php循环跳出的问题_php技巧

WBOY
WBOYOriginal
2016-05-17 08:57:271016browse
复制代码 代码如下:

//php当前循环为1,循环由里到外依次递增,break默认为1,例如跳出第2层循环
for ($i=0;$i    foreach (array(1,2,3) as $val){    
        foreach (array(1,2,3) as $val){         
            echo "1层循环
"; 
            break 2;  //跳出第2层循环        
        }
        echo "2层循环
";
    }
    echo "3层循环
";
}
//结果:
//1层循环
//3层循环
//1层循环
//3层循环
//1层循环
//3层循环
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