Replace substrings in PHP with unique key index

Question

I want to parse:

My name is [name]Bob[/name] and her name is [name]Mary[/name].

into:

My name is {{ $name[1] }} and her name is {{ $name[2] }}.

and:

public function parse($string)
{
    $pattern = '~\[name\](.*?)\[/name\]~s';

    $matches = preg_match_all($pattern, $string);

    for($i = 1; $i <= $matches; $i++)
    {
        $result[] = '{{ $name['. $i .'] }}';
    }

    return implode(' ', $result);
}

returns:

{{ $name[1] }} {{ $name[2] }}

Question: How do I add this to my string to get the desired result?

preg_replace_callback

u_mulder
– u_mulder

2020-11-17 15:44:20 +00:00
Commented Nov 17, 2020 at 15:44 — u_mulder
– u_mulder, Commented Nov 17, 2020 at 15:44

u_mulder · Accepted Answer · 2020-11-17 15:47:34Z

2

With preg_replace_callback it is:

function parse($string)
{
    $pattern = '~\[name\](.*?)\[/name\]~s';
    $i = 1;

    return preg_replace_callback(
        $pattern, 
        function ($m) use (&$i) {
            return '{{ $name['. $i++ .'] }}';
        },
        $string, 
    );
}

echo parse('My name is [name]Bob[/name] and her name is [name]Mary[/name].');

Fiddle.

answered Nov 17, 2020 at 15:47

u_mulder

54.8k5 gold badges54 silver badges72 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Wouter Dorgelo Over a year ago

Works! Found a different solution (3v4l.org/rNsOO) but I think I'll stick with yours.

Collectives™ on Stack Overflow

Replace substrings in PHP with unique key index

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related