Online PHP editor | output for Z575v

@ 2020-01-15T02:18:18Z

<?php

mb_regex_encoding('SJIS');
$string = mb_convert_encoding("hello ここに文を入れる。", "SJIS", "UTF-8");
$pattern = "hello";
$replacement = 'hi';
//expected result: hi ここに文を入れる。
//but it returns NULL
$output = mb_ereg_replace($pattern, $replacement, $string);
var_dump(mb_convert_encoding($output, "UTF-8", "SJIS"));

Output for 4.3.4 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12: string(30) "hi ここに文を入れる。"
Output for 4.3.2 - 4.3.3: Fatal error: Call to undefined function: mb_regex_encoding() in /in/Z575v on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1: Fatal error: Call to undefined function: mb_regex_encoding() in /in/Z575v on line 3

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