The script will unexpectedly exit when using php://stdout

[f2h2h1]

Description

The following code:

php -a <<- 'EOF'
    echo 'start' . PHP_EOL;
    var_dump(fopen('php://stdout', 'w'));
    echo 'end' . PHP_EOL;
EOF

Resulted in this output:

start
resource(2) of type (stream)

But I expected this output instead:

start
resource(2) of type (stream)
end

This will produce output that meets expectations

php -r "echo('start'.PHP_EOL);var_dump(fopen('php://stdout','w'));echo('end'.PHP_EOL);"

but use php -a will accidentally exiting

Tested environment

• OS: Windows 10
• PHP: 8.1.26 NTS x64
• Docker: NO
• Shell: Bash

PHP Version

PHP: 8.1.26 NTS x64

Operating System

Windows 10

[f2h2h1]

Related issues symfony/symfony#58993

[cmb69]

Note that PHP 8.1 (and practically 8.2) are in security mode, so won't receive regular bug fixes. Can you reproduce this also with PHP 8.3 (or higher)?

[cmb69]

Try:

php -a <<- 'EOF'
    echo 'start' . PHP_EOL;
    var_dump($out = fopen('php://stdout', 'w'));
    echo 'end' . PHP_EOL;
EOF

You need to keep a reference to the new STDOUT; otherwise PHP < 8.3 closes it.

Anyhow, too late for PHP 8.2 or even PHP 8.1 bug fixes.

[cmb69]

Note that this looks like a duplicate of #11104. Rather different symptoms, but the same root cause.