Detailed explanation of PHP mobile phone location query function_PHP tutorial

This article will introduce to you a PHP mobile phone location query function written by myself. The principle is very simple and the implementation is not difficult. I believe everyone can understand it.

if( $handle=@fopen('mob.dat','rb'))

The code is as follows  代码如下 复制代码 function get_area($mob){ $mob=substr($mob,0,7); if( $handle=@fopen('mob.dat','rb')) { @flock($handle,LOCK_SH); $string=@fread($handle,@filesize('mob.dat')); @fclose($handle); } $string=strstr($string,$mob); $num=strpos($string,"n"); $end=substr($string,0,$num); list($a,$area)=explode(",",$end); return $area; } //demo echo get_area('13000000000');	Copy code
function get_area($mob){ $mob=substr($mob,0,7);

{ @flock($handle,LOCK_SH);

$string=@fread($handle,@filesize('mob.dat'));

Home data file download: mob.dathttp://l4.yunpan.cn/lk/QvYCBFP6TVBjy http://www.bkjia.com/PHPjc/632764.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/632764.htmlTechArticleThis article will introduce to you a self-written PHP mobile phone location query function. The principle is very simple and the implementation is easy. It’s not difficult, I believe everyone can understand it. The code is as follows Copy code function...