Req #5889 [Wfx]: pack() does not take arrays
| From: | requinix@php.net | Date: | Fri, 11 Apr 2014 17:31:21 +0000 |
| Subject: | Req #5889 [Wfx]: pack() does not take arrays | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-185183@lists.php.net to get a copy of this message | ||
Edit report at https://bugs.php.net/bug.php?id=5889&edit=1
ID: 5889
Updated by: requinix@php.net
Reported by: tomwk at audiogalaxy dot com
Summary: pack() does not take arrays
Status: Wont fix
Type: Feature/Change Request
-Package: Feature/Change Request
+Package: *General Issues
Operating System: Redhat Linux
PHP Version: 4.0.1pl2
Block user comment: N
Private report: N
New Comment:
It won't be as described (passing arrays) because there are other ways of doing it.
PHP 5.6+ introduces argument unpacking.
$buf = pack("N*", ...$data)
PHP <5.6 can use call_user_func_array().
$buf = call_user_func_array("pack", array_merge(array("N*"), $data));
Previous Comments:
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[2014-04-11 13:31:47] asakurastar at hotmail dot com
When will it be implemented??
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[2011-03-22 19:00:27] joshua at gmail dot com
Yes, it WILL be implemented
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[2004-06-14 10:49:20] magnus@php.net
This will not be implemented.
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[2000-08-01 10:22:25] stas@php.net
Well, functions args work differently in perl and PHP. Maybe we need some "array" type of
pack modifier, because PHP does not convert function arguments to array. Though, you can write a
wrapper function using func_get_args() and func_num_args() for this.
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[2000-08-01 09:51:18] tomwk at audiogalaxy dot com
I have an application that writes data across our network
to another program. Most of the data consists of integer arrays. I'm currently doing this in
a very simple manner,
using something like this:
for( $i = 0; $i < $numInts; $i++ ) {
fwrite( $fd, pack( "N", $ints[ $i ] ) );
}
However, this results in a very large number of calls to
fwrite, which is bad for performance. I made the routine
about 3 times faster by doing something like this:
fwrite( $fd, pack( "N10"
$ints[ $i + 0 ],
$ints[ $i + 1 ],
$ints[ $i + 2 ], ///.. and so on,
However, it would be really great if pack could take an array as one of it's arguments. I
believe this is the way
Perl behaves, but when I try:
$data = array( 10, 123 );
$buf = pack( "N*", $data );
$valArray = unpack( "N*", $buf );
while( list( $key, $val ) = each( $valArray ) ) {
echo "$key -> $val\n";
}
the only output I get is:
1 -> 1
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Edit this bug report at https://bugs.php.net/bug.php?id=5889&edit=1