[PHP] Use of callback on a stream

Hello,

I am trying to make a daemon that launches shell commands via proc_open
and gets the stdout of the command via a pipe. The thing is that I would
like to get this stdout via a callback, instead of monitoring the pipe
regularly.
I tried the following code (this is a simplified version of it, but the
callback never gets called,

does anyone know what I forgot ?
Thanks,
Olivier


<?php

// First we proc_open a ls
// 1 - we build the descriptor array
$descriptorspec = array(
0 => array("pipe", "r"), // // stdin
1 => array("pipe", "w"), // stdout
2 => array("pipe", "w") // stderr
);
$pipes=array();
// We make a simple callback function
function stream_callback(){
global $pipes;

$stdout_child=stream_get_contents($pipes[1]);
print("Callback received:\n");
print($stdout_child."\n");
}
$context=stream_context_create(array());
stream_context_set_params($context,array('notifica tion' =>
'stream_callback'));
$handle=proc_open("/bin/ls
/tmp",$descriptorspec,$pipes,null,null,array('conte xt' => $context));
stream_context_set_params($pipes[1],array('notification' =>
'stream_callback'));

while (true){
print("Waiting...\n");
sleep(5);
}

Hello,

If I have an array like this
$dataArray = array(0=>array('type'=>'da'), 1=>array('type'=>'wb'), 2=>array('type'=>'da');

How I can filtering to get only 'da' only, like this

$newDataArray = array(0=>array('type'=>'da'),2=>array('type'=>'da' ))

Thanks in advance

bnug

> If I have an array like this
> $dataArray = array(0=>array('type'=>'da'), 1=>array('type'=>'wb'), 2=>array('type'=>'da');
>
> How I can filtering to get only 'da' only, like this
>
> $newDataArray = array(0=>array('type'=>'da'),2=>array('type'=>'da' ))

Off the top of my head:

<?php
foreach ($newDataArray as $k => $v) {
if (!empty($v['type']) AND $v['type'] != 'da') {
unset($newDataArray[$k]);
}
}
?>

Optionally, you could use array_values() to re-index $newDataArray if
you need to.

--
Richard Heyes
Employ me:
http://www.phpguru.org/cv

On 28/03/2008, Bagus Nugroho <bnugroho@unisemgroup.com> wrote:
> Hello,
>
> If I have an array like this
> $dataArray = array(0=>array('type'=>'da'), 1=>array('type'=>'wb'), 2=>array('type'=>'da');
>
> How I can filtering to get only 'da' only, like this
>
> $newDataArray = array(0=>array('type'=>'da'),2=>array('type'=>'da' ))

$newDataArray = array_filter($dataArray, create_function('$a','return
$a["type"] == "da";'));

Thanks You,

rgds, bnug

________________________________

From: Robin Vickery [mailto:robinv@gmail.com]
Sent: Jumat 28-Mar-2008 21:45
To: Bagus Nugroho
Cc: php-general@lists.php.net
Subject: Re: [php] array_filter function



On 28/03/2008, Bagus Nugroho <bnugroho@unisemgroup.com> wrote:
> Hello,
>
> If I have an array like this
> $dataArray = array(0=>array('type'=>'da'), 1=>array('type'=>'wb'), 2=>array('type'=>'da');
>
> How I can filtering to get only 'da' only, like this
>
> $newDataArray = array(0=>array('type'=>'da'),2=>array('type'=>'da' ))

$newDataArray = array_filter($dataArray, create_function('$a','return
$a["type"] == "da";'));