php file_get_contents implements the method of getting array elements in the file

This article mainly introduces the method of php file_get_contents to get the array elements in the file. Interested friends can refer to it. I hope it will be helpful to everyone.

Use file_get_contents() to grab the content on this URL

http://simonfenci.sinaapp.com/index.php? key=simon&wd=1314abc

It seems like it returns an array. . But no matter how I use the foreach loop, I get an error. .

I just want to take out the value of the word in the array.

The method is as follows: Correct solution (the other fields are the same, just replace word)

$s=file_get_contents(&#39;http://simonfenci.sinaapp.com/index.php?key=simon&wd=1314abc&#39;);$rule=&#39;#(?<=\[word\] =>)\s\w+#&#39;;preg_match_all($rule,$s,$arr);print_r($arr);

The problems I encountered are as follows:

<?php 
@header(&#39;content-type:text/html;charset=utf-8&#39;);
function show_bug($msg){
echo "<pre class="brush:php;toolbar:false">";
print_r($msg);
echo "

"; } //ini_set('user_agent','Mozilla/4.0 (compatible; MSIE 5.00; Windows 98)'); //$url="http://redhatcn.cn//Home/Login/mmzh2/t/user"; // 所有[jb] => 后面的金额，所有金额相加 $url='array.txt'; $s=file_get_contents($url); $rule='#(?<=\[jb\] =>)\s\w+#';preg_match_all($rule,$s,$arr); // $bool=is_array($arr); // var_dump($bool); //show_bug($arr); $arr_num=$arr[0]; //array_sum函数返回数组中所有值的总和。 echo '文件中所有jb之和为：'.array_sum($arr_num); ?>

##array.txt content is as follows:

Array( [0] => Array ( [id] => 183 [cf] => 0 [date] => 2016-08-26 21:17:32 [zffs1] => 0 [zffs2] => 1 [zffs3] => 0 [jb] => 5000 [zt] => 1 [user] => 18676081117 [qr_zt] => 1 [user_tjr] => 18943636615 [user_nc] => ¿ÉÀÖ [cf_ds] => 0 [jycg_ds] => 0 [yid] => [ok] => 1 ) [1] => Array ( [id] => 240 [cf] => 0 [date] => 2016-09-03 12:06:50 [zffs1] => 1 [zffs2] => 1 [zffs3] => 1 [jb] => 8000 [zt] => 0 [user] => 15192777617 [qr_zt] => 0 [user_tjr] => 13987611435 [user_nc] => Ö콨¸Û [cf_ds] => 0 [jycg_ds] => 0 [yid] => [ok] => 1 ) )

The above is the entire content of this article, I hope it will be helpful to everyone's study.

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