Online PHP editor | output for E6jS1

@ 2021-04-28T19:52:31Z

<?php

$source = '＜0＞＜1＞＜2＞＜3＞＜4＞＜5＞＜6＞＜7＞＜8＞＜9＞＜10＞＜11＞＜12＞＜13＞＜14＞＜15＞＜16＞＜17＞＜18＞The next 11 keys can change the SWING from OFF (50%) to ＜19＞＜20＞＜21＞＜22＞＜23＞＜24＞＜25＞80＜26＞＜27＞＜28＞＜29＞＜30＞＜31＞＜32＞% during arpeggiator or sequencer operation.＜33＞＜34＞';

$cnt = 0;
echo preg_replace_callback('~(?:＜(?:{\d+}|【\d+】|〖\d+〗|\d+)＞)+~u', function($m) use (&$cnt) {
    return '['. ++$cnt .']';
}, $source);

Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.4, 8.3.6 - 8.3.7: [1]The next 11 keys can change the SWING from OFF (50%) to [2]80[3]% during arpeggiator or sequencer operation.[4]
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 [1]The next 11 keys can change the SWING from OFF (50%) to [2]80[3]% during arpeggiator or sequencer operation.[4]

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