Bug #71868 [Opn]: Environment variables with no value are filtered out by proc_open()

Edit report at https://bugs.php.net/bug.php?id=71868&edit=1 ID: 71868 User updated by: enrico dot stahn at gmail dot com Reported by: enrico dot stahn at gmail dot com Summary: Environment variables with no value are filtered out by proc_open() Status: Open Type: Bug Package: Program Execution Operating System: Debian PHP Version: 5.6.19 Block user comment: N Private report: N New Comment: https://github.com/symfony/symfony/issues/18170#issuecomment-199225778 Previous Comments: ------------------------------------------------------------------------ [2016-03-21 14:12:09] enrico dot stahn at gmail dot com Description: ------------ Empty environment variables passed to proc_open are filtered out. Test script: --------------- <?php // process.php $env = ['FOO' => 'abc', 'BAR' => '']; $pipes = []; $process = proc_open('./env.php', [], $pipes, pwd, $env); proc_close($process); #!/usr/bin/php <?php // env.php var_dump($_SERVER['FOO']); var_dump($_SERVER['BAR']); php process.php will output: string(3) "abc" PHP Notice: Undefined index: BAR in /Users/kuba/Projects/symfony/issues/env.php on line 6 NULL ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=71868&edit=1