popen

Opens process file pointer

Syntax

popen ( string $command , string $mode ) : resource

Parameters

command

The command

mode

The mode

Return

Returns a file pointer identical to that returned by fopen(), except that it is unidirectional (may only be used for reading or writing) and must be closed with pclose(). This pointer may be used with fgets(), fgetss(), and fwrite(). When the mode is 'r', the returned file pointer equals to the STDOUT of the command, when the mode is 'w', the returned file pointer equals to the STDIN of the command. If an error occurs, returns FALSE.

Examples

1

<?

$handle = popen("/bin/ls", "r");
pclose($handle);

?>

			
		

2

<?

error_reporting(E_ALL);

/* Add redirection so we can get stderr. */
$handle = popen('/path/to/executable 2>&1', 'r');
echo "$handle: " . gettype($handle) . "\n";
$read = fread($handle, 2096);
echo $read;
pclose($handle);

?>

			
		

basename

chgrp

chmod

chown

clearstatcache

copy

dirname

disk_free_space

disk_total_space

diskfreespace

fclose

feof

fflush

fgetc

fgetcsv

fgets

file

file_exists

file_get_contents

file_put_contents

fileatime

filectime

filegroup

fileinode

filemtime

fileowner

fileperms

filesize

filetype

flock

fnmatch

fopen

fpassthru

fputcsv

fputs

fread

fscanf

fseek

fstat

ftell

ftruncate

fwrite

glob

is_dir

is_executable

is_file

is_link

is_readable

is_uploaded_file

is_writable

is_writeable

lchgrp

lchown

link

linkinfo

lstat

mkdir

move_uploaded_file

pathinfo

pclose

readfile

readlink

realpath

realpath_cache_get

realpath_cache_size

rename

rewind

rmdir

set_file_buffer

stat

symlink

tempnam

tmpfile

touch

umask

unlink

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