popen
Description
The popen of Filesystem for PHP 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);
Links
Filesystem
- 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