如何确定一个PHP字符串是否只包含经度和纬度 [英] How to determine if a PHP string ONLY contains latitude and longitude

问题描述

  $ query =-33.805789 
 
我必须使用可能包含Lat / Long数据的字符串。 ，151.002060\" ; 
 $ query =-33.805789，151.002060; 
 $ query =OVER HERE：-33.805789,151.002060; 
  

就我的目的而言，前2个字符串是正确的，但最后一个不是。我试图找出一个匹配模式，匹配经纬度，长逗号，逗号和空格。但是如果字符串中包含数字，空格，点号，减号和逗号之外的任何内容，那么它应该会失败。

希望这是有道理的，而TIA ！

解决方案

  ^ [+  - ]？\ d + \.\d + ，？[+  - ]？\ d + \.\d + $ 
  

^ 在开头， $ 在结尾处确保它匹配完整的字符串，而不仅仅是它的一部分。 / p>

I have to work with strings which may contain Lat/Long data, like this:

$query = "-33.805789,151.002060";
$query = "-33.805789, 151.002060";
$query = "OVER HERE: -33.805789,151.002060";

For my purposes, the first 2 strings are correct, but the last one isn't. I am trying to figure out a match pattern which would match a lat and long separated by a comma, or a comma and a space. But if it has anything in the string other than numbers, spaces, dots, minus signs and commas, then it should fail the match.

Hope this makes sense, and TIA!

解决方案

^[+-]?\d+\.\d+, ?[+-]?\d+\.\d+$

The ^ at the start and $ at the end make sure that it matches the complete string, and not just a part of it.

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