Online PHP editor | output for cMcYh

@ 2022-02-04T23:57:42Z

<?php

$patternCallbacks = [
    '~\[code](.*?)\[/code]~is' =>
        function($m) {
            return '[code]' . base64_encode($m[1]) . '[/code]';
        },
    '~\[php(?:=[0-9]+)?]\K(.*?)\[/php]~is' =>
        function($m) {
            return base64_encode($m[1]) . '[/php]';
        },
];

$text = <<<TEXT
This is my [code]script[/code] to display.
It has [php]unnumbered tag
 code[/php] and [php=8]numbered tag code[/php].'
TEXT;

foreach ($patternCallbacks as $pattern => $callback) {
    $text = preg_replace_callback($pattern, $callback, $text);
}
echo $text;

Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0: This is my [code]c2NyaXB0[/code] to display. It has [php]dW5udW1iZXJlZCB0YWcKIGNvZGU=[/php] and [php=8]bnVtYmVyZWQgdGFnIGNvZGU=[/php].'
Output for 8.4.15: /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.

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