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run code in 300+ PHP versions simultaneously

@ 2021-06-26T12:54:26Z

<?php

$safe_var = 'all your base they belong to us';

file_put_contents('/tmp/exploit.txt',$safe_var );
// imagine lots of stuff going on here...
$safe_var = file_get_contents('/tmp/exploit.txt');

function make_literal(string $non_literal):string {
    $literal = '';
    for( $i = 0; $i< strlen($non_literal); $i++ ){
        $literal .= chr(ord($non_literal[$i]));
    }
    return $literal;
}

if ( !is_noble($safe_var)) {
    printf( "Darn! I can't use the data I need to use.\n");
}

printf( "But wait...\n");
$safe_var = make_literal($safe_var);

if ( is_noble($safe_var)) {
    printf( "Well, since you did not provide any way to handle *legitimate* exceptions\n");
    printf( "then I will just work around you, you annoying little is_literal() function!\n\n");
    echo strtoupper($safe_var);
    echo "!!!";
}

Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.30, 8.2.0 - 8.2.25, 8.3.0 - 8.3.4, 8.3.6 - 8.3.14, 8.4.1: Fatal error: Uncaught Error: Call to undefined function is_noble() in /in/oCBp7:17 Stack trace: #0 {main} thrown in /in/oCBp7 on line 17
Process exited with code 255.
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 Fatal error: Uncaught Error: Call to undefined function is_noble() in /in/oCBp7:17 Stack trace: #0 {main} thrown in /in/oCBp7 on line 17
Process exited with code 255.

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