In php substr(INFORMATICS&SYSTEMS-58600,-5) is returning 'ATICS'

Question

I know this type of questions have been asked before but none solves my problem.

I want to capture numeric parts of this string INFORMATICS&SYSTEMS-58600 i.e. 58600.
I am trying to do substr(INFORMATICS&SYSTEMS-58600,-5) which returns ATICS which is substr of first part of string INFORMATICS but I want the last part.
Wherever & is appearing this is behaving same.

I know its a very basic mistake but what ??? I cant figure out.Please help me out.

i tried it, it's printing 58600 only. `echo substr('INFORMATICS&SYSTEMS-58600',-5);` what your doing in your code — Jason Brody, Oct 08 '15 at 03:56
Yes you are right the problem is something else. I am trying to pass it as parameter in url i.e. get_data.php?dept='INFORMATICS&SYSTEMS-58600' through jquery ajax call. — sandeep yadav, Oct 08 '15 at 04:16
I have found that i am getting only dept ='informatics'. Which means & is treated as second parameter of url query. — sandeep yadav, Oct 08 '15 at 04:19
You need to escape the content in the javascript before passing it down then. — AlVaz, Oct 08 '15 at 04:25

score 1 · Answer 1 · edited May 23 '17 at 11:52

1

$str = 'INFORMATICS&SYSTEMS-58600';
preg_match_all('!\d+!', $str, $matches);
print_r($matches);

Can refer Extract numbers from a string

edited May 23 '17 at 11:52

Community

1
1

answered Oct 08 '15 at 04:12

test

464
5
14

score 1 · Answer 2 · edited May 23 '17 at 10:26

1

Actully PHP substr is working fine. 1. I was passing this text as url query in ajax i.e. get_data.php?dept ='informatics& system' so anything after & was treated as second parameter.

I found this nice answer on link to pass ajax parameters in url as encoded.

edited May 23 '17 at 10:26

Community

1
1

answered Oct 08 '15 at 04:32

sandeep yadav

107
10

score 0 · Answer 3 · answered Oct 08 '15 at 04:09

0

The regex in this code matches a number at the end of a string.

<?php
  $str = "INFORMATICS&SYSTEMS-58600";
  $matches = array();
  preg_match("/\d+$/", $str, $matches);
  foreach($matches as $match) {
    echo $match;
  }
?>

Output:

answered Oct 08 '15 at 04:09

Jason

2,725
2
14
22

In php substr(INFORMATICS&SYSTEMS-58600,-5) is returning 'ATICS'

3 Answers3