php file_get_contents取文件中数组元素的方法

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

<?php @header('content-type:text/html;charset=utf-8');function show_bug($msg){echo "<pre>";print_r($msg);echo "</pre>";}//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( [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 ) )