PHP正则表达式-从字符串获取数字

Question

I have a string sequence that goes like this: <x:object*10/> . I want to replace that tag with something else that depends on what number it is. I match the tag above with /<x:object\\*[0-9]+\\/>/ and using preg_replace i can replace it all with the content I want. I just need that number now.

How can I get the number please?

Answer 1

By capturing it:

/<x:object\\*(?P<my_number>[0-9]+)\\/>/

It will be captured with name "my_number"...

Full code would be sth like this:

<?php
preg_match_all(`/<x:object\*(?P<my_number>[0-9]+)\/>/`, $where_to_search, $matches);
var_dump($matches); // Dump the matches to see in detail.
?>

Answer 2

试试这个:)

/<x:object\*([0-9]+)\/>/

Answer 3

更好地使用

/<x:object\*([0-9]+)\/>/