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run code in 150+ php & hhvm versions
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<?php $code=' array( 0 => "a", "a" => $GlobalScopeVar, "b" => array("nested"=>array(1,2,3)), "c" => function() use (&$VAR) { return isset($VAR) ? "defined" : "undefined" ; }, "string_literal", 12345 ) '; $token = token_get_all("<?php ".$code); $newcode = ""; $i = 0; while (++$i < count($token)) { // enter into array; then start. if (is_array($token[$i])) $newcode .= $token[$i][1]; else $newcode .= $token[$i]; if ($token[$i] == "(") { $ending = ")"; break; } if ($token[$i] == "[") { $ending = "]"; break; } } // init variables $escape = 0; $wait_for_non_whitespace = 0; $parenthesis_count = 0; $entry = ""; // main loop while (++$i < count($token)) { // don't match commas in func($a, $b) if ($token[$i] == "(" || $token[$i] == "{") // ( -> normal parenthesis; { -> closures $parenthesis_count++; if ($token[$i] == ")" || $token[$i] == "}") $parenthesis_count--; // begin new string after T_DOUBLE_ARROW if (!$escape && $wait_for_non_whitespace && (!is_array($token[$i]) || $token[$i][0] != T_WHITESPACE)) { $escape = 1; $wait_for_non_whitespace = 0; $entry .= "'"; } // here is a T_DOUBLE_ARROW, there will be a string after this if (is_array($token[$i]) && $token[$i][0] == T_DOUBLE_ARROW && !$escape) { $wait_for_non_whitespace = 1; } // entry ended: comma reached if (!$parenthesis_count && $token[$i] == "," || ($parenthesis_count == -1 && $token[$i] == ")" && $ending == ")") || ($ending == "]" && $token[$i] == "]")) { // go back to the first non-whitespace $whitespaces = ""; if ($parenthesis_count == -1 || ($ending == "]" && $token[$i] == "]")) { $cut_at = strlen($entry); while ($cut_at && ord($entry[--$cut_at]) <= 0x20); // 0x20 == " " $whitespaces = substr($entry, $cut_at + 1, strlen($entry)); $entry = substr($entry, 0, $cut_at + 1); } // $escape == true means: there was somewhere a T_DOUBLE_ARROW if ($escape) { $escape = 0; $newcode .= $entry."'"; } else { $newcode .= "'".addcslashes($entry, "'\\")."'"; } $newcode .= $whitespaces.($parenthesis_count?")":(($ending == "]" && $token[$i] == "]")?"]":",")); // reset $entry = ""; } else { // add actual token to $entry if (is_array($token[$i])) { $addChar = $token[$i][1]; } else { $addChar = $token[$i]; } if ($entry == "" && $token[$i][0] == T_WHITESPACE) { $newcode .= $addChar; } else { $entry .= $escape?str_replace(array("'", "\\"), array("\\'", "\\\\"), $addChar):$addChar; } } } //append remaining chars like whitespaces or ; $newcode .= $entry; print $newcode;
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.13.2, 7.0.0 - 7.1.0
array( 0 => '"a"', "a" => '$GlobalScopeVar', "b" => 'array("nested"=>array(1,2,3))', "c" => 'function() use (&$VAR) { return isset($VAR) ? "defined" : "undefined" ; }', '"string_literal"', '12345' )