How to extract values from this string in php

Question

I have this string

@[181] @[183] @[4563]

from this string I want to get values between [] in this case

181,183,4563

Look into regex and `preg_match_all()`, which makes it quite simple. — mario, Jul 15 '13 at 22:09
check out Preg_match() i believe this will help more than explode() or str_replace()....there are tons of examples of how to extract numbers... — A.O., Jul 15 '13 at 22:09

score 3 · Accepted Answer · edited Jul 15 '13 at 22:24

3

This should do the trick:

$string = '@[181] @[183] @[4563]';
preg_match_all('/\[([0-9]*)\]/', $string, $matches);
foreach($matches[1] as $number) {
    echo $number;
}

edited Jul 15 '13 at 22:24

Niklas

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answered Jul 15 '13 at 22:10

Tobias Golbs

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score 2 · Answer 2 · 2013-07-15T22:17:22.117

2

<?php 
$string = '@[181] @[183] @[4563]';
preg_match_all("#\[([^\]]+)\]#", $string, $matches); //or #\[(.*?)\]#
print_r($matches[1]);
?> 

Array
(
    [0] => 181
    [1] => 183
    [2] => 4563
)

edited Jul 15 '13 at 22:17

answered Jul 15 '13 at 22:11

score 2 · Answer 3 · answered Jul 15 '13 at 22:21

2

I know it might sound sexy to use regex and all, but this is a case where you might not need the full power/overhead, as you have a very well formatted input string.

$string = '@[181] @[183] @[4563]';
$needles = array('@', '[', ']');
$cleaned_string = str_replace($needles, '', $string);
$result_array = explode(' ', $cleaned_string);

answered Jul 15 '13 at 22:21

Mike Brant

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Or you could replace space with comma instead of exploding, given he wants to output it as `181,183,4563` – Prix Jul 15 '13 at 22:22

score 0 · Answer 4 · answered Jul 15 '13 at 22:25

0

assuming the values between the array are numbers this is pretty simple

 $s =  '@[181] @[183] @[4563]';
 preg_match_all('/\d+/', $s, $m);

 $matches_as_array = $m[0];
 $matches_as_string = implode(',', $m[0]);

answered Jul 15 '13 at 22:25

Jay Harris

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17
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How to extract values from this string in php

4 Answers4