PHP RegEx to Extract Phone No

问题

bid=
id=3D46799862
03005134012
 +92-345-540700(8)
(00996)-345.(123)/4567 
 bidid=3D46799862). +966 235 123456/7
    * Need to make a payment?  You can do it here (https://www.elance.com/p=+92 123 4567891
hp/project/main/projectInvoices.php?bidid=3D46799862).
    /receivingpmbmessages.html).
<a href=3D"http://help.elance.com/entries/20992337-valign=3D"bottom" style=3D"font-s=
ize:10px; color:#817f80;padding:0px;margin:0px;">1-877-435-2623 | Mon-Fri 8=

Testing at http://rubular.com/r/U0YZQ0GlbZ
RegEx (\d|\+)(\+|\d|\(|\)|-| |\.){7,}\b
Expected matches :

1. 03005134012
2. +92-345-540700(8)
3. (00996)-345.(123)/4567
4. +966 235 123456/7
5. +92 123 4567891
6. 1-877-435-2623

incorrect matches :

1. matching 46799862 but should be ignore beacause complete word is 3D46799862
2. matching +92-345-540700(8 and it should match +92-345-540700(8)
3. matching 00996)-345.(123 but it should match (00996)-345.(123)/4567
4. matching 46799862). +966 235 123456 but it should match +966 235 123456/7
5. Matching 20992337- but it should be ignored because its /20992337-valign=

回答1:

I assume that you wan't a regular expression that only matches the 6 expected matches.

This regular expression does that.

(?<!(?:\w|\/))(?:\d|\+|\()[\d ()\/\.-]+(?!\w)

It has to start with either a \d, + or (. But only if there is no preceding \w or /.

Then just consume one or more of [\d ()/.-] but not if it ends with a \w

EDIT

(?<...) is a negative lookbehind. In this case it means that the previous charaters cannot match the regex ...

(?!...) is a negative lookahead. So like above it means that the next characters cannot match the regex ...

Both of the above contructs is non-consuming.

(?:...) is a non capturing group

回答2:

(\d|\+|\()(\+|\d|\(|\)|-| |\/){7,}(\d|\))+\b  

This is more accurate...

来源：https://stackoverflow.com/questions/18849158/php-regex-to-extract-phone-no