stream_get_wrappers
(PHP 5)
stream_get_wrappers — Retrieve list of registered streams
说明
array stream_get_wrappers ( void )Retrieve list of registered streams available on the running system.
返回值
Returns an indexed array containing the name of all stream wrappers available on the running system.
范例
Example #1 stream_get_wrappers() example 以上例程的输出类似于：
<?php
print_r(stream_get_wrappers());
?>
Array
(
[0] => php
[1] => file
[2] => http
[3] => ftp
[4] => compress.bzip2
[5] => compress.zlib
)
Example #2 Checking for the existence of a stream wrapper
<?php
// check for the existence of the bzip2 stream wrapper
if (in_array('compress.bzip2', stream_get_wrappers())) {
echo 'compress.bzip2:// support enabled.';
} else {
echo 'compress.bzip2:// support not enabled.';
}
?>
参见
- stream_wrapper_register()
