Phar::isBuffering

(PHP >= 5.3.0, PECL phar >= 1.0.0)

Phar::isBuffering — Used to determine whether Phar write operations are being buffered, or are flushing directly to disk

说明

public bool Phar::isBuffering ( void )

This method can be used to determine whether a Phar will save changes to disk immediately, or whether a call to Phar::stopBuffering() is needed to enable saving changes.

Phar write buffering is per-archive, buffering active for the foo.phar Phar archive does not affect changes to the bar.phar Phar archive.

返回值

Returns TRUE if the write operations are being buffer, FALSE otherwise.

范例

Example #1 A Phar::isBuffering() example

  <?php
$p  = new  Phar ( dirname ( __FILE__ ) .  '/brandnewphar.phar' ,  0 ,  'brandnewphar.phar' );
 $p2  = new  Phar ( 'existingphar.phar' );
 $p [ 'file1.txt' ] =  'hi' ;
 var_dump ( $p -> isBuffering ());
 var_dump ( $p2 -> isBuffering ());
 ?>
=2=
<?php
$p -> startBuffering ();
 var_dump ( $p -> isBuffering ());
 var_dump ( $p2 -> isBuffering ());
 $p -> stopBuffering ();
 ?>
=3=
<?php
var_dump ( $p -> isBuffering ());
 var_dump ( $p2 -> isBuffering ());
 ?>

以上例程会输出：

bool(false)
bool(false)
=2=
bool(true)
bool(false)
=3=
bool(false)
bool(false)

参见

Phar::startBuffering() - Start buffering Phar write operations, do not modify the Phar object on disk
Phar::stopBuffering() - Stop buffering write requests to the Phar archive, and save changes to disk