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Missing streams - Cannot read from STDIN ???
The php streams:
php://memory php://temp php://input php://output
are all missing !
I tried to compile this simple script:
<?php
$input = fopen('php://input', 'rb');
$output = fopen('php://output', 'wb');
$temp = fopen('php://temp', 'wb');
echo "OUTPUT:".PHP_EOL;
fwrite($output, 'HELLO');
$contents = '';
while(! feof($input)) {
$contents.= fread($input, 8192);
}
echo "Input: ".$contents.PHP_EOL;
I compiles fine with:
kphp test2.php --mode cli --composer-root $(pwd) -o ./test2
But when run output is:
henrik@HSLAPTOP-ASUS:/tmp/sreq2$ ./test2
[1779467][2024-08-14 19:21:12.592479 limits.cpp 124] failed to set rlimit for core dump size.
[1723656072] [1779467] Warning: php://input should be opened in read mode
------- Stack Backtrace -------
(0) ./test2 : php_warning(char const*, ...)+0xa4 [0x6660e4]
(1) ./test2 : f$fopen(string const&, string const&)+0x98 [0x6936e8]
(2) ./test2 : f$src_test2e0546a04c0b99c86()+0x50 [0x521720]
(3) ./test2 : f$src_test2e0546a04c0b99c86$run()+0xd [0x52150d]
(4) ./test2 : PhpScript::run()+0xef [0x71e22f]
(5) /lib/x86_64-linux-gnu/libc.so.6 : +0x5a130 [0x7f00347c5130]
-------------------------------
[1723656072] [1779467] Warning: Stream php://output not found
------- Stack Backtrace -------
(0) ./test2 : php_warning(char const*, ...)+0xa4 [0x6660e4]
(1) ./test2 : f$fopen(string const&, string const&)+0x98 [0x6936e8]
(2) ./test2 : f$src_test2e0546a04c0b99c86()+0xac [0x52177c]
(3) ./test2 : f$src_test2e0546a04c0b99c86$run()+0xd [0x52150d]
(4) ./test2 : PhpScript::run()+0xef [0x71e22f]
(5) /lib/x86_64-linux-gnu/libc.so.6 : +0x5a130 [0x7f00347c5130]
-------------------------------
[1723656072] [1779467] Warning: Stream php://temp not found
------- Stack Backtrace -------
(0) ./test2 : php_warning(char const*, ...)+0xa4 [0x6660e4]
(1) ./test2 : f$fopen(string const&, string const&)+0x98 [0x6936e8]
(2) ./test2 : f$src_test2e0546a04c0b99c86()+0x101 [0x5217d1]
(3) ./test2 : f$src_test2e0546a04c0b99c86$run()+0xd [0x52150d]
(4) ./test2 : PhpScript::run()+0xef [0x71e22f]
(5) /lib/x86_64-linux-gnu/libc.so.6 : +0x5a130 [0x7f00347c5130]
-------------------------------
OUTPUT:
[1723656072] [1779467] Warning: Can't find appropriate wrapper for ""
------- Stack Backtrace -------
(0) ./test2 : php_warning(char const*, ...)+0xa4 [0x6660e4]
(1) ./test2 : f$fwrite(mixed const&, string const&)+0x89 [0x690519]
(2) ./test2 : f$src_test2e0546a04c0b99c86()+0x171 [0x521841]
(3) ./test2 : f$src_test2e0546a04c0b99c86$run()+0xd [0x52150d]
(4) ./test2 : PhpScript::run()+0xef [0x71e22f]
(5) /lib/x86_64-linux-gnu/libc.so.6 : +0x5a130 [0x7f00347c5130]
-------------------------------
[1723656072] [1779467] Warning: Can't find appropriate wrapper for ""
------- Stack Backtrace -------
(0) ./test2 : php_warning(char const*, ...)+0xa4 [0x6660e4]
(1) ./test2 : f$feof(mixed const&)+0x1d0 [0x68ed30]
(2) ./test2 : f$src_test2e0546a04c0b99c86()+0x24c [0x52191c]
(3) ./test2 : f$src_test2e0546a04c0b99c86$run()+0xd [0x52150d]
(4) ./test2 : PhpScript::run()+0xef [0x71e22f]
(5) /lib/x86_64-linux-gnu/libc.so.6 : +0x5a130 [0x7f00347c5130]
-------------------------------
Input:
Also:
stream_copy_to_stream() is missing stream_get_meta_data() is missing stream_get_contents() is missing
Can the missing streams ('php://temp', 'php://memory', 'php://input' and 'php://output') be added soon ?
I just spent a couple of days making a PSR-7 HTTP Message implementation to use with KPHP and it compiles fine but does not work due to the missing streams ???
Please prioritize this !
Now I tried this:
<?php
$input = fopen('php://stdin', 'r');
$output = fopen('php://stdout', 'w');
stream_set_blocking($input, false);
echo "OUTPUT:".PHP_EOL;
fwrite($output, 'HELLO');
$contents = '';
// Use stream_select to check for input availability
$read = [$input];
$write = null;
$except = null;
$timeout = 1;
//$ready = stream_select($read, $write, $except, $timeout); // This line is uncompilable ????
$ready = 1;
if ($ready > 0) {
// Input is available, read it
while (!feof($input)) {
$line = fgets($input);
if ($line === false) {
break;
}
$contents.= $line;
}
} else {
echo "No input available.\n";
}
echo "Input: ".$contents.PHP_EOL;
According to the funtions file, php://stdin and php://stdout are defined but while the code above compiles the output is:
henrik@HSLAPTOP-ASUS:/tmp/sreq2$ echo "HELLO" | ./test2
[1786882][2024-08-14 19:54:50.117989 limits.cpp 124] failed to set rlimit for core dump size.
[1723658090] [1786882] Warning: Stream php://stdin not found
------- Stack Backtrace -------
(0) ./test2 : php_warning(char const*, ...)+0xa4 [0x666504]
(1) ./test2 : f$fopen(string const&, string const&)+0x98 [0x693b08]
(2) ./test2 : f$src_test2e0546a04c0b99c86()+0x57 [0x521727]
(3) ./test2 : f$src_test2e0546a04c0b99c86$run()+0xd [0x52150d]
(4) ./test2 : PhpScript::run()+0xef [0x71e64f]
(5) /lib/x86_64-linux-gnu/libc.so.6 : +0x5a130 [0x7f4abc38e130]
-------------------------------
[1723658090] [1786882] Warning: Can't find appropriate wrapper for ""
------- Stack Backtrace -------
(0) ./test2 : php_warning(char const*, ...)+0xa4 [0x666504]
(1) ./test2 : f$stream_set_blocking(mixed const&, bool)+0x1d0 [0x692980]
(2) ./test2 : f$src_test2e0546a04c0b99c86()+0x108 [0x5217d8]
(3) ./test2 : f$src_test2e0546a04c0b99c86$run()+0xd [0x52150d]
(4) ./test2 : PhpScript::run()+0xef [0x71e64f]
(5) /lib/x86_64-linux-gnu/libc.so.6 : +0x5a130 [0x7f4abc38e130]
-------------------------------
OUTPUT:
HELLO[1723658090] [1786882] Warning: Can't find appropriate wrapper for ""
------- Stack Backtrace -------
(0) ./test2 : php_warning(char const*, ...)+0xa4 [0x666504]
(1) ./test2 : f$feof(mixed const&)+0x1d0 [0x68f150]
(2) ./test2 : f$src_test2e0546a04c0b99c86()+0x2d3 [0x5219a3]
(3) ./test2 : f$src_test2e0546a04c0b99c86$run()+0xd [0x52150d]
(4) ./test2 : PhpScript::run()+0xef [0x71e64f]
(5) /lib/x86_64-linux-gnu/libc.so.6 : +0x5a130 [0x7f4abc38e130]
-------------------------------
Input:
So how do you read from php://stdin and write to php://stdout using KPHP ?
Please help !
Now I refactored my KPHPRequestBody class to this:
<?php
/**
* Created by PhpStorm.
* User: inhere
* Date: 2017-08-28
* Time: 14:31
*/
namespace PhpPkg\Http\Message\Request;
use Psr\Http\Message\StreamInterface;
use RuntimeException;
/**
* Class RequestBody
* Provides a PSR-7 implementation of a reusable raw request body
* @package PhpPkg\Http\Message\Request
*/
class KPHPRequestBody implements StreamInterface {
private string $data;
private int $position;
public function __construct(string $content = null)
{
$stdinContent = '';
$fp = fopen('php://stdin', 'r'); // This line produces a warning ?
while(!feof($fp)) {
$line = fgets($fp, 8192);
$stdinContent.=$line;
}
$this->data = $stdinContent;
$this->position = 0;
if ($content !== null) {
$this->write($content);
}
}
public function __toString() : string
{
return $this->data;
}
public function close()
{
$this->data = '';
$this->position = 0;
}
public function detach()
{
$this->close();
return null; // No underlying resource to return
}
public function getSize() : ?int
{
return strlen($this->data);
}
public function tell() : int
{
return $this->position;
}
public function eof() : bool
{
return $this->position >= strlen($this->data);
}
public function isSeekable() : bool
{
return true;
}
public function seek($offset, $whence = SEEK_SET)
{
$length = strlen($this->data);
switch ($whence) {
case SEEK_SET:
$this->position = $offset;
break;
case SEEK_CUR:
$this->position += $offset;
break;
case SEEK_END:
$this->position = $length + $offset;
break;
default:
throw new RuntimeException('Invalid whence value');
}
if ($this->position < 0 || $this->position > $length) {
throw new RuntimeException('Invalid seek position');
}
}
public function rewind()
{
$this->position = 0;
}
public function isWritable() : bool
{
return true;
}
public function write($string) : int
{
$length = strlen($string);
// Replace data at the current position with new data
$this->data = substr_replace($this->data, $string, $this->position, $length);
$this->position += $length;
return $length;
}
public function isReadable() : bool
{
return true;
}
public function read($length) : string
{
$result = substr($this->data, $this->position, $length);
$this->position += strlen($result);
return $result;
}
public function getContents() : string
{
$result = substr($this->data, $this->position);
$this->position = strlen($this->data); // Move to end
return $result;
}
public function getMetadata(?string $key = null): ?array
{
// No metadata for an in-memory stream
return null;
}
}
test.php:
<?php
require_once('vendor/autoload.php');
use PhpPkg\Http\Message\HttpFactory;
$request = HttpFactory::createServerRequestFromArray($_SERVER);
//$request = HttpFactory::createServerRequest('GET', 'http://www.abc.com/home?first=henrik&last=skov');
//
$code = 200;
var_dump($request->get('first'));
$response = HttpFactory::createResponse($code);
$response->write('HELLO');
$response->end();
It compiles fine using:
# kphp test.php --composer-root $(pwd) --mode cli -o ./test
However, when run like this:
# echo "FOO" | ./test
the output is this:
[56569][2024-08-15 10:38:16.377521 limits.cpp 124] failed to set rlimit for core dump size.
[1723711096] [56569] Warning: Stream php://stdin not found
------- Stack Backtrace -------
(0) ./test : php_warning(char const*, ...)+0xa4 [0x6b54a4]
(1) ./test : f$fopen(string const&, string const&)+0x98 [0x6e0cc8]
(2) ./test : f$PhpPkg$Http$Message$Request$KPHPRequestBody$$__construct(class_instance<C$PhpPkg$Http$Message$Request$KPHPRequestBody> const&, Optional<string> const&)+0xa0 [0x552ff0]
(3) ./test : f$PhpPkg$Http$Message$HttpFactory$$createServerRequestFromArray(mixed const&, Optional<string> const&)+0x551 [0x557bb1]
(4) ./test : f$src_testa2eaf1d201790ddf()+0x80 [0x56fc70]
(5) ./test : f$src_testa2eaf1d201790ddf$run()+0xd [0x53866d]
(6) ./test : PhpScript::run()+0xef [0x76b80f]
(7) /lib/x86_64-linux-gnu/libc.so.6 : +0x5a130 [0x7f2d9c079130]
-------------------------------
[1723711096] [56569] Warning: Can't find appropriate wrapper for ""
------- Stack Backtrace -------
(0) ./test : php_warning(char const*, ...)+0xa4 [0x6b54a4]
(1) ./test : f$feof(mixed const&)+0x1d0 [0x6dc310]
(2) ./test : f$PhpPkg$Http$Message$Request$KPHPRequestBody$$__construct(class_instance<C$PhpPkg$Http$Message$Request$KPHPRequestBody> const&, Optional<string> const&)+0x156 [0x5530a6]
(3) ./test : f$PhpPkg$Http$Message$HttpFactory$$createServerRequestFromArray(mixed const&, Optional<string> const&)+0x551 [0x557bb1]
(4) ./test : f$src_testa2eaf1d201790ddf()+0x80 [0x56fc70]
(5) ./test : f$src_testa2eaf1d201790ddf$run()+0xd [0x53866d]
(6) ./test : PhpScript::run()+0xef [0x76b80f]
(7) /lib/x86_64-linux-gnu/libc.so.6 : +0x5a130 [0x7f2d9c079130]
-------------------------------
NULL
HELLO
So how exactly do you read from STDIN using KPHP ?
I checked the C++ source and php://stdin is defined as a Stream ?
Please help !
Next I tried using php://input
The output was then
# echo "FOO" | ./test
the output is:
[60444][2024-08-15 10:58:36.405808 limits.cpp 124] failed to set rlimit for core dump size.
[1723712316] [60444] Warning: Can't use feof with stream php://input
------- Stack Backtrace -------
(0) ./test : php_warning(char const*, ...)+0xa4 [0x6b54a4]
(1) ./test : f$feof(mixed const&)+0x5f [0x6dc19f]
(2) ./test : f$PhpPkg$Http$Message$Request$KPHPRequestBody$$__construct(class_instance<C$PhpPkg$Http$Message$Request$KPHPRequestBody> const&, Optional<string> const&)+0x156 [0x5530a6]
(3) ./test : f$PhpPkg$Http$Message$HttpFactory$$createServerRequestFromArray(mixed const&, Optional<string> const&)+0x551 [0x557bb1]
(4) ./test : f$src_testa2eaf1d201790ddf()+0x80 [0x56fc70]
(5) ./test : f$src_testa2eaf1d201790ddf$run()+0xd [0x53866d]
(6) ./test : PhpScript::run()+0xef [0x76b80f]
(7) /lib/x86_64-linux-gnu/libc.so.6 : +0x5a130 [0x7fbdf15fb130]
-------------------------------
NULL
HELLO