preg_match一个String,用于从字符串中获取某些数字

preg_match一个String,用于从字符串中获取某些数字

问题描述:

I have a string that always has the following format

Text: 1.1111111 Text

What I need is 1.11 of the string

So I went with this regex

^(\S*\s)(\d.\d{2})

I've used http://regex101.com/ to try it out and it works there, but when I do it on my own code, the matches array is always empty.

This is the code

//$ratingString = Durchschnittsbewertung: 4.65000 von 5 Sternen 20 Bewertungen Location bewerten 
preg_match ( "/^(\S*\s)(\d.\d{2})/", $ratingString, $matches );
var_dump ( $matches );
// matches == array (0) {}

我的字符串总是具有以下格式 p>

文字:1.1111111文字 code> p>

我需要的是 1.11 code>的字符串 p>

所以我选了这个 正则表达式 p>

^(\ S * \ S)(\ d \ d {2})代码> p>

I” 使用 http://regex101.com/ 进行试用,它可以在那里工作,但当我在我的 自己的代码,matches数组总是空的。 p>

这是代码 p>

  // $ ratingString = Durchschnittsbewertung:4.65000 von 5 Sternen  20 Bewertungen位置bewerten 
preg_match(“/ ^(\ S* \ s)(\\\
d {2})/”,$ ratingString,$ matches); 
var_dump($ matches); 
 // matches =  = array(0){} 
  code>  pre> 
  div>

You need to escape the dot as dot is special character in regex which matches any character if not escaped:

^(\S*\s)(\d\.\d{2})

god, so here...sorry for editing. like this

$ratingString = "Durchschnittsbewertung: 4.65000 von 5 Sternen 20 Bewertungen Location bewerten";
preg_match ( "#(\d\.\d{2})#", $ratingString, $matches );
var_dump ( $matches );