how to replace bbcode li?

Question

I need to create a function to replace

[li]text[/li]

into

 <li>text</li>

This is the regex Im testing but nothing

 $string="[li]A[/li] [li]B[/li] [li]C[/li] [li]D[/li]";

 $pattern = "/[li](.*?)[\/li]/s";
$string = preg_replace($pattern, "$1", $string);

 echo $string; //but returns: []A[/] []B[/] []C[/] []D[/]

but nothing, what Im doing wrong?

Square brackets in regexp are special. You need to escape those too. — Vilx-
– Vilx-, Commented May 7, 2020 at 2:05
scaping and using this new regex puts everything within a single li /\[li\](.*?)\[\/li\]/s — max
– max, Commented May 7, 2020 at 2:14
Should [li]text without [/li] be altered? Can we assume that if [/li] is present it will be preceded by [li]? Is it just [li], or, could it be, say, [a] and [/a]? — Cary Swoveland
– Cary Swoveland, Commented May 7, 2020 at 3:19

Antonio Abrantes · Accepted Answer · 2020-05-07 02:20:20Z

1

you should insert the < li > in the replace command

$string="[li]A[/li] [li]B[/li] [li]C[/li] [li]D[/li]";
$pattern = "/\[li\](.*?)\[\/li\]/s";
$string = preg_replace($pattern, "<li>$1</li>", $string);
echo "<pre>";
echo $string;
echo "</pre>";

answered May 7, 2020 at 2:20

Antonio Abrantes

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3 Comments

max Over a year ago

Thank you. what if within one or several li are there linebreaks? thank you

Antonio Abrantes Over a year ago

you could do another command at beggining of code to replace \n like $string = preg_replace("/(\n)/", "", $string);

Vilx- Over a year ago

Newlines shouldn't affect it. They're just characters.

Majid Shafaei · Accepted Answer · 2020-05-21 12:27:56Z

0

$string="[li]A[/li] [li]B[/li] [li]C[/li] [li]D[/li]";
$string = preg_replace('/\[(.*?)\](.*?)\[\/(.*?)\]/', '<$1>$2</$3>', $string);
echo $string;

Result:

<li>A</li> <li>B</li> <li>C</li> <li>D</li>

answered May 21, 2020 at 12:27

Majid Shafaei

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