Online PHP editor | output for CEmqV

@ 2017-07-21T16:12:07Z

<?php

function closure_to_str($func)
{
    $refl = new \ReflectionFunction($func); // get reflection object
    $path = $refl->getFileName();  // absolute path of php file
    $begn = $refl->getStartLine(); // have to `-1` for array index
    $endn = $refl->getEndLine();
    $dlim = "\n"; // or PHP_EOL
    $list = explode($dlim, file_get_contents($path));         // lines of php-file source
    $list = array_slice($list, ($begn-1), ($endn-($begn-1))); // lines of closure definition
    $last = (count($list)-1); // last line number

    if((substr_count($list[0],'function')>1)|| (substr_count($list[0],'{')>1) || (substr_count($list[$last],'}')>1))
    { throw new \Exception("Too complex context definition in: `$path`. Check lines: $begn & $endn."); }

    $list[0] = ('function'.explode('function',$list[0])[1]);
    $list[$last] = (explode('}',$list[$last])[0].'}');

    return implode($list,$dlim);
}

$dog2 = ['bark'=>function($foo = '{'){}];

echo closure_to_str($dog2['bark'])."\n\n";

Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 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 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: Fatal error: Uncaught Exception: Too complex context definition in: `/in/CEmqV`. Check lines: 23 & 23. in /in/CEmqV:15 Stack trace: #0 /in/CEmqV(25): closure_to_str(Object(Closure)) #1 {main} thrown in /in/CEmqV on line 15
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 Exception: Too complex context definition in: `/in/CEmqV`. Check lines: 23 & 23. in /in/CEmqV:15 Stack trace: #0 /in/CEmqV(25): closure_to_str(Object(Closure)) #1 {main} thrown in /in/CEmqV on line 15
Process exited with code 255.
Output for 5.6.0 - 5.6.40: Fatal error: Uncaught exception 'Exception' with message 'Too complex context definition in: `/in/CEmqV`. Check lines: 23 & 23.' in /in/CEmqV:15 Stack trace: #0 /in/CEmqV(25): closure_to_str(Object(Closure)) #1 {main} thrown in /in/CEmqV on line 15
Process exited with code 255.

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