duanchi6397 2013-12-12 13:44
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仅执行一次foreach循环[关闭]

As we know foreach loop will execute till condition does not become false. I want to execute it only once.

$i=0;
foreach($html->find('img') as $element) 
{    

       if($i!=0)  
          break;
       $logo= $element->src . '<br>';
       $i++;
}

Is there any other solution for this? like foronce in place of foreach?

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  • dongque1646 2013-12-12 13:49
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    As we know foreach loop will execute till condition does not become false.

    A foreach loop will execute once for every item of the container unless a return or break condition is defined within the foreach block.

    I want to execute it only once.

    Loops that executes once are called "don't use a loop in the first place". Here's your example fixed:

    $logo = $html->find('img')[0]->src . '<br>';
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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