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这个该如何写?

WBOY
WBOYOriginal
2016-06-13 13:26:50896browse

这个该怎么写??
$a = '+86-021-13512345678转(0755)82382022&a0755-99999999mp;nb+8613812345678sp; 82382044/34';

preg_match_all('/[\d\()\+\-\s]+/',$a,$r);

print_r($r);

现在已经能提取数字了。。可是怎么能限制下,区号是3位数呀,后边电话位数是8位的呢??

------解决方案--------------------
是要限制还是要取。。。要取0755的075?还是755?

\d\d{3}-\d{8} 

\d{3}\d-\d{8}

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