preg_replace for replacing number value in string

Question

Launguage used PHP TimeString = 1500-1550

I want to use preg_replace to change the 1550 half of the string to 1530. I tried to use a pattern of (/d|/d/d)50 Where I am getting stuck is I don't know how to use the replacement feature to change any /d50 or /d/d50 to have a 30 suffix. I don't want to sue str replace in php as it will change the first time 1500 to 130 since the 50 matches. Any ideas?

You mean \d instead of /d?

rid
– rid

2013-03-19 19:46:49 +00:00
Commented Mar 19, 2013 at 19:46 — rid
– rid, Commented Mar 19, 2013 at 19:46

Mustapha · Accepted Answer · 2013-03-19 20:05:36Z

2

Here..

<?php
    $numbers = array (1500, 1550, 140, 150, 15000);
    foreach ($numbers as $number) {
        echo preg_replace('/(\d|\d\d)50\b/', '${1}30', $number);
        echo "\n";
    }
?>

Will return:

answered Mar 19, 2013 at 20:05

Mustapha

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1 Comment

user2188130 Over a year ago

site won't let me upvote until I build my reputation otherwise I would. Thanks for the help!

Svish · Accepted Answer · 2013-03-19 19:47:54Z

1

To match digits you need to use \d. Not /d.

answered Mar 19, 2013 at 19:47

Svish

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Comments

rid · Accepted Answer · 2013-03-19 19:47:53Z

0

preg_replace('/(\d\d)50/', '${1}30', $string)

answered Mar 19, 2013 at 19:47

rid

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