bug #19950 [FrameworkBundle] Parse source link maps using json_decode() instead of parse_str() (nicolas-grekas)

This PR was merged into the 3.2-dev branch.

Discussion
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[FrameworkBundle] Parse source link maps using json_decode() instead of parse_str()

| Q             | A
| ------------- | ---
| Branch?       | master
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | updated code exists only on master
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #19807
| License       | MIT
| Doc PR        | symfony/symfony-docs#6944

Because `parse_str()` turns some characters into underscores in keys (e.g. `.`).

Commits
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9b174fb [FrameworkBundle] Parse source link maps using json_decode() instead of parse_str()

Author: nicolas-grekas

Templating/Helper/CodeHelper.php

@@ -36,9 +36,9 @@ public function __construct($fileLinkFormat, $rootDir, $charset)
         $fileLinkFormat = $fileLinkFormat ?: ini_get('xdebug.file_link_format') ?: get_cfg_var('xdebug.file_link_format');
         if ($fileLinkFormat && !is_array($fileLinkFormat)) {
             $i = max(strpos($fileLinkFormat, '%f'), strpos($fileLinkFormat, '%l'));
-            $i = strpos($fileLinkFormat, '#', $i) ?: strlen($fileLinkFormat);
+            $i = strpos($fileLinkFormat, '#"', $i) ?: strlen($fileLinkFormat);
             $fileLinkFormat = array(substr($fileLinkFormat, 0, $i), substr($fileLinkFormat, $i + 1));
-            parse_str($fileLinkFormat[1], $fileLinkFormat[1]);
+            $fileLinkFormat[1] = @json_decode('{'.$fileLinkFormat[1].'}', true) ?: array();
         }
         $this->fileLinkFormat = $fileLinkFormat;
         $this->rootDir = str_replace('\\', '/', $rootDir).'/';