Regexp PHP Split number and string

Question

I would like to split a string contains some numbers and letters. Like this:

ABCd Abhe123
123ABCd Abhe
ABCd Abhe 123
123 ABCd Abhe

I tried this:

<?php preg_split('#(?<=\d)(?=[a-z])#i', "ABCd Abhe 123"); ?>

But it doesn't work. Only one cell in array with "ABCd Abhe 123"
I would like for example, in cell 0: numbers and in cell1: string:

[0] => "123",
[1] => "ABCd Abhe"

Thank you for your help! ;)

If it's possible, an array like I wrote. (Thank you for editing my post :$) — Lapinou
– Lapinou, Commented Oct 22, 2013 at 10:34

Community · Accepted Answer · 2020-06-20 09:12:55Z

2

Use preg_match_all instead

preg_match_all("/(\d+)*\s?([A-Za-z]+)*/", "ABCd Abhe 123" $match);

For every match:

$match[i][0] contains the matched segment
$match[i][1] contains numbers
$match[i][2] contains letters

(See here for regex test)

Then put them in an array

for($i = 0; $i < count($match); $i++)
{
    if($match[i][1] != "")
        $numbers[] = $match[1];

    if($match[i][2] != "")
        $letters[] = $match[2];
}

EDIT1

I've updated the regex. It now looks for either numbers or letters, with or without a whitespace.

EDIT2

The regex is correct, but the arrayhandling wasn't. Use preg_match_all, then $match is an array containing arrays, like:

Array
(
    [0] => Array
        (
            [0] => Abc
            [1] =>  aaa
            [2] => 25
        )

    [1] => Array
        (
            [0] => 
            [1] => 
            [2] => 25
        )

    [2] => Array
        (
            [0] => Abc
            [1] => aaa
            [2] => 
        )

)

edited Jun 20, 2020 at 9:12

CommunityBot

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answered Oct 22, 2013 at 10:33

Richard de Wit

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5 Comments

Lapinou Over a year ago

Awesome! I didn't knew this web site! I just changed to: (\d+)|([\WA-Za-z]+) to use spaces. Thank you!

Lapinou Over a year ago

I come back ^^ It's strange, I have the letters but not the numbers... An idea ? But if I test here: rubular.com/r/X0RRECjww5, it works...

Richard de Wit Over a year ago

As you can see there, the numbers are all in index 1 of $match, while the letters are in index 2 of $match. Make sure you get the right index. Also, what do you use for input? A single, long string?

Lapinou Over a year ago

It's a normal string. I checked my input string and I have something like: Abc aaa25. Then, I check my arrays: count(numbers) and count(letters). One of them are 0 => numbers. I don't understand :/

Richard de Wit Over a year ago

Use preg_match_all instead of preg_match, see updated answer

Lajos Veres · Accepted Answer · 2013-10-22 10:35:16Z

0

Maybe something like this?

$numbers = preg_replace('/[^\d]/', '', $input);
$letters = preg_replace('/\d/', '', $input);

answered Oct 22, 2013 at 10:35

Lajos Veres

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