php 手机归属地查询函数详解
本文章来给各位同学介绍一个自己写的php 手机归属地查询函数,原理很简单,实现也不难,相信大家都看的懂。
<?php 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'); ?>
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