PHP preg match exactly

Question

I do have the following pregmatch:

$search = 310850;

if (preg_match("/\b$search\b/i", $response)) {
        echo "match !";
    } else {
        echo "NO MATCH";
    }

response contains alot of things, but it contains 310850 and also 3108502 and 31085.

to info: $response contains a html page with alot of elements that contains the $search

How can i make sure i get a match on 310850and not all the others?

EDIT:

How do i allow the characters < and > to be next to the search? they could be wrapped on ded123>number<blabla

Don't work boundaries restrict the match to the whole word? See [this demo](https://ideone.com/N9vpPN). — Wiktor Stribiżew, Feb 03 '17 at 14:42
@Toto it matches all the numbers that is longer or shorter than the search word too. i dont want that — maria, Feb 03 '17 at 14:44
@maria: No, see [the demo](https://ideone.com/N9vpPN), `/\b310850\b/` does not match neither `3108502` nor `31085` — Wiktor Stribiżew, Feb 03 '17 at 14:44
cause im looking to see if what im searching for is in the $response`s html view somewhere. they could be between > and < `s — maria, Feb 03 '17 at 14:51
@maria https://3v4l.org/pI5ko ? Which brings me to my prev question... — Naruto, Feb 03 '17 at 14:54
$response is not an array. response is an entire html document. — maria, Feb 03 '17 at 14:56
Possible duplicate of [Strpos with exact matches](http://stackoverflow.com/questions/7733529/strpos-with-exact-matches), the answer is what you are looking for then — Naruto, Feb 03 '17 at 15:00

jancha · Answer 1 · 2017-02-03T15:11:59.987

0

<?php

$search = 310850;

$responses = ["310850"," 310850 ", "0310850","3108501",

"<html>
<a href='google.com'>310850</a>
</html>
"];

function test($search, $response){
    echo $response,": ";
    if (preg_match("/([^0-9]+|^)$search([^0-9]+|$)/i", $response)) {
        echo "match !";
    } else {
        echo "NO MATCH";
    }
    echo "\n";
}

foreach($responses as $response){
    test($search, $response);
}

output:

php -q a.php
310850: match !
 310850 : match !
0310850: NO MATCH
3108501: NO MATCH
<html>
<a href='google.com'>310850</a>
</html>
: match !

edited Feb 03 '17 at 15:11

answered Feb 03 '17 at 15:09

jancha

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Response is not an array, ITS an entire html page – maria Feb 03 '17 at 15:09
look closer, it's set of test cases to show output for different inputs – jancha Feb 03 '17 at 15:10

PHP preg match exactly

1 Answers1