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Homephp教程php手册PHP file_get_contents 函数超时的几种解决方法

PHP file_get_contents 函数超时的几种解决方法

Jun 13, 2016 pm 12:22 PM
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这里就简单介绍两种:
一、增加超时的时间限制
这里需要注意:set_time_limit只是设置你的PHP程序的超时时间,而不是file_get_contents函数读取URL的超时时间。
我一开始以为set_time_limit也能影响到file_get_contents,后来经测试,是无效的。真正的修改file_get_contents延时可以用resource $context的timeout参数:

复制代码 代码如下:


$opts = array(
‘http'=>array(
‘method'=>”GET”,
‘timeout'=>60,
)
);
$context = stream_context_create($opts);
$html =file_get_contents('http://www.example.com', false, $context);
fpassthru($fp);


二、一次有延时的话那就多试几次
有时候失败是因为网络等因素造成,没有解决办法,但是可以修改程序,失败时重试几次,仍然失败就放弃,因为file_get_contents()如果失败将返回 FALSE,所以可以下面这样编写代码:

复制代码 代码如下:


$cnt=0;
while($cnt

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