Commits on Mar 21, 2022

1. Removed warning about missing namespace leading backslash in `var_exp… …

   …ort()` docs
   
   `var_export()` needs to prefix classes it references with `\`, because its code could be transplanted in
   any source location/namespace, so the assumption of it being used only in the context of the root
   namespace is not sufficient.
   
   For example, in a code snippet like following ( https://3v4l.org/4mONc ):
   
   ```php
   <?php
   
   class SomeObject {}
   var_export([new SomeObject]);
   ```
   
   This should produce:
   
   ```
   array (
     0 => 
     \SomeObject::__set_state(array(
     )),
   )
   ```
   
   Userland should not concern itself with the contents of the `var_export()`-produced code
   snippets, and use them as-is instead.
   
   Ref: php/php-src#8232
   Ref: php/php-src#8233
   Ref: Ocramius/ProxyManager#754

   

   Ocramius committed Mar 21, 2022
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