Online PHP editor | output for 9Yl4i

@ 2021-09-21T05:43:09Z

<?php

function codePoints($utf8_str){
    //入力をUTF-32に変換
    $utf32_str=mb_convert_encoding($utf8_str,'UTF-32','UTF-8');

    for($i=0;$i<mb_strlen($utf32_str,'UTF-32');++$i)
        //1文字ずつ16進文字列に変換
        $result[]=bin2hex(mb_substr($utf32_str,$i,1,'UTF-32'));
    return $result;
}




//mb_internal_encoding('UTF-8');
$string ='aab';
$pattern = '/aaa/';
 if(preg_match_all($pattern, 
 $string, 
 $matches,
 PREG_OFFSET_CAPTURE)) {
     echo 'test';
 }
 
 
 $string ="⏰⏳";
 $test = codePoints($string);
 echo "$test:".print_r($test,true);
$pattern = '/23f0|23f3/';
 if(preg_match_all($pattern, 
 $test[0].$test[1], 
 $matches
 )) {
     echo 'test2';
 }

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: Warning: Array to string conversion in /in/9Yl4i on line 29 Array:Array ( [0] => 000023f0 [1] => 000023f3 ) test2
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 Warning: Array to string conversion in /in/9Yl4i on line 29 Array:Array ( [0] => 000023f0 [1] => 000023f3 ) test2
Output for 7.3.0 - 7.3.31, 7.3.33, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33: Notice: Array to string conversion in /in/9Yl4i on line 29 Array:Array ( [0] => 000023f0 [1] => 000023f3 ) test2
Output for 7.3.32, 7.4.26: Array:Array ( [0] => 000023f0 [1] => 000023f3 ) test2

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