preg_match multiple search replace in string

Question

I'm trying to perform a multiple search and replace in a string given a list of prefixes.

For example:

$string = "CHG000000135733, CHG000000135822, CHG000000135823";
if (preg_match('/((CHG|INC|HD|TSK)0+)(\d+)/', $string, $id)) {
# $id[0] - CHG.*
# $id[1] - CHG(0+)
# $id[2] - CHG
# $id[3] - \d+ # excludes zeros

$newline = preg_replace("/($id[3])/","<a href=\"http://www.url.com/newline.php?id=".$id[0]."\">\\1</a>", $string);
}

This only changes CHG000000135733. How can I make the code work to replace the other two CHG numbers as links to their corresponding numbers.

SOLVED using this piece of code submitted by Casimir et Hippolyte.

$newline = preg_replace ('~(?:CHG|INC|HD|TSK)0++(\d++)~', '<a href="http://www.url.com/newline.php?id=$0">$0</a>', $string);

what's in $input? You never define it.

Marc B
– Marc B

2013-04-29 00:01:00 +00:00
Commented Apr 29, 2013 at 0:01 — Marc B
– Marc B, Commented Apr 29, 2013 at 0:01

Casimir et Hippolyte · Accepted Answer · 2013-04-29 00:21:05Z

1

No need to use preg_match before. In one line:

$newline = preg_replace ('~(?:CHG|INC|HD|TSK)0++(\d++)~', '<a href="http://www.url.com/newline.php?id=$0">$1</a>', $string);

edited Apr 29, 2013 at 0:21

answered Apr 29, 2013 at 0:08

Casimir et Hippolyte

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Comments

Dinesh · Accepted Answer · 2013-04-29 00:07:58Z

0

you will need to iterate over them:

$string = "CHG000000135733, CHG000000135822, CHG000000135823";
$stringArr = explode(" ", $string);
$newLine = "";
foreach($stringArr as $str)
{
    if (preg_match('/((CHG|INC|HD|TSK)0+)(\d+)/', $str, $id)) {
    # $id[0] - CHG.*
    # $id[1] - CHG(0+)
    # $id[2] - CHG
    # $id[3] - \d+ # excludes zeros

    $newline .= preg_replace("/($id[3])/","<a href=\"http://www.url.com/newline.php?id=".$id[0]."\">\\1</a>", $str);
}

your new line variable will have all three urls appended to it as shown but you can modify it do watever you want with the urls..

answered Apr 29, 2013 at 0:07

Dinesh

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