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Bug #71229 Writing to "php://stdout" from the interactive shell makes it hang
Submitted: 2015-12-28 12:40 UTC Modified: 2017-10-24 05:20 UTC
Avg. Score:3.0 ± 0.0
Reproduced:0 of 0 (0.0%)
From: michelezamuner at gmail dot com Assigned: laruence (profile)
Status: Assigned Package: *General Issues
PHP Version: 7.0.1 OS: Ubuntu 14.04.1 x86_64
Private report: No CVE-ID: None
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 [2015-12-28 12:40 UTC] michelezamuner at gmail dot com
In the interactive shell, after executing a function that writes a string to "php://stdout" file, the prompt doesn't appear back, and no input from the keyboard is recognized. The only thing left to do is terminating the process (Ctrl+C) and starting the shell again.

Test script:
// Start the interactive shell
// $ php -a
file_put_contents("php://stdout", "Hello, World!");
// The string is correctly printed, but no prompt is available any more,
// and no keyboard input is recognized.

Expected result:
After printing the expected string (which happens correctly) I expect the prompt "php > " to be available again, and to be able to continue working with the shell.

Actual result:
The prompt "php > " doesn't appear after printing the string, and the shell is frozen, not accepting any input from the keyboard.


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 [2015-12-28 15:13 UTC]
-Status: Open +Status: Verified
 [2015-12-28 15:13 UTC]
An quick fix could be :

diff --git a/sapi/cli/php_cli.c b/sapi/cli/php_cli.c
index b4288b8..c2413fa 100644
--- a/sapi/cli/php_cli.c
+++ b/sapi/cli/php_cli.c
@@ -964,7 +964,7 @@ static int do_cli(int argc, char **argv) /* {{{ */
 		PG(during_request_startup) = 0;
 		switch (behavior) {
-			if (strcmp(file_handle.filename, "-")) {
+			if (strcmp(file_handle.filename, "-") || interactive) {

however, I am trying to figure out a better solution
 [2015-12-28 15:13 UTC]
-Assigned To: +Assigned To: laruence
 [2017-10-24 05:20 UTC]
-Status: Verified +Status: Assigned
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