.. _must-not-contain-empty-strings:

must not contain empty strings
------------------------------
 
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		must not contain empty strings: The deflate_init() function accepts options.
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	:og:description: The deflate_init() function accepts options
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Description
___________
 
The deflate_init() function accepts options. Among the options, there is a dictionary, with a dictionary of preset strings. Theses strings cannot be left empty.

Before PHP 8.2, this bug would crash PHP.

Example
_______

.. code-block:: php

   <?php
   try {
       deflate_init(ZLIB_ENCODING_DEFLATE, [dictionary => [, ]]);
   } catch (ValueError $ex) {
       echo $ex->getMessage(), \n;
   }
   ?>

Solutions
_________

+ Remove the 2nd argument.
+ Remove the 'dictionary' entry in the 2nd argument.
+ Put an actual value in the values of the 'dictionary' entry in the 2nd argument.