php man page for pclose

PCLOSE(3)								 1								 PCLOSE(3)

pclose - Closes process file pointer

SYNOPSIS
       int pclose (resource  $handle)

DESCRIPTION
	Closes a file pointer to a pipe opened by popen(3).

PARAMETERS
	      o $handle
		- The file pointer must be valid, and must have been returned by a successful call to popen(3).

RETURN VALUES
	Returns the termination status of the process that was run. In case of an error then -1 is returned.

EXAMPLES
       Example #1

	      pclose(3) example

	      <?php
	      $handle = popen('/bin/ls', 'r');
	      pclose($handle);
	      ?>

NOTES
       Note

	      Unix Only:

	      pclose(3)  is  internally implemented using the waitpid(3) system call. To obtain the real exit status code the pcntl_wexitstatus(3)
	      function should be used.

SEE ALSO
       popen(3).

PHP Documentation Group 														 PCLOSE(3)