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Digg  pclose
Closes process file pointer
(PHP 4, PHP 5)
Related Examples ( Source code ) » pclose Examples ( Source code ) » Using popen() to Read the Output of the UNIX who Command Examples ( Source code ) » Using popen() to Pass Data to the column Application Code Examples / Notes » pclosechad 0x40 herballure 0x2e com
Warning: If you're reading a command with infinite output, such as 'vmstat 2', pclose will cause the script to hang. This is because pclose waits for the command to exit, in order to return the exit status. If the process never exits, pclose never returns.
roel
The return value of pclose() is not the exit status of the program, but a value as returned by waitpid() of wait4(). To obtain the exit status: $ret=(pclose($f)>>8)&0xFF; kcross
Somewhere between 4.1.1 and 4.2.3, the return value from pclose changed. The exit status used to be in the second byte, so that the status would be (pclose($fp)/256). It is now in the low-order byte, so the status is just pclose($fp). Be careful. vdweij
As I understand pclose will return 0 (on every platform) in case popen could not execute the specified command. Since popen only returns the status wether it was able to send a command and not wether it was succesfully executed. Only the returned value of pclose can be used to check wether a command could be executed. |
Change Language
basename chgrp chmod chown clearstatcache copy delete dirname disk_free_space disk_total_space diskfreespace fclose feof fflush fgetc fgetcsv fgets fgetss file_exists file_get_contents file_put_contents file 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 parse_ini_file pathinfo pclose popen readfile readlink realpath rename rewind rmdir set_file_buffer stat symlink tempnam tmpfile touch umask unlink |
