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run code in 300+ PHP versions simultaneously

@ 2018-10-25T23:27:40Z

<?php

$vars = ['len' => '-1',
  'start' => '0',
  'cNum' => '7',
  'cSearch_0' => 'b',
  'cSearch_1' => 'c',
  'cSearch_2' => 'd',
  'cSearch_3' => 'e',
  'cSearch_4' => 'f',
  'cSearch_5' => 'g',
  'cSearch_6' => 'h',
  'cSort_0' => 'asc',
  'cSort_1' => 'asc',
  'search' => 'a'];
  
 function _filterArrayByKey(string $filter, $array){
        return array_filter(
            $array, 
            function($k) use ($filter){ 
                return preg_match('/(' . $filter . ')/',$k);
            }, 
            ARRAY_FILTER_USE_KEY
        );
    }
    
//   $v = preg_grep('/[cSearch]\_/', array_keys($vars));
  
//   $cSearch = array_filter($vars, function($k){ return preg_match('/(cSearch)/',$k);}, ARRAY_FILTER_USE_KEY);
$cSort = _filterArrayByKey('cVis',$vars);
  var_dump($cSort);
$o = '';
if(!empty($cSort)){
                // $cSortStr = 
            }
            
var_dump($o);

Output for 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: array(0) { } string(0) ""
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 array(0) { } string(0) ""
Output for 5.6.0 - 5.6.40: Catchable fatal error: Argument 1 passed to _filterArrayByKey() must be an instance of string, string given, called in /in/fuSgU on line 30 and defined in /in/fuSgU on line 17
Process exited with code 255.

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