¿Se pueden usar con matrices de más de una dimensión?
get_resources
(PHP 7)
get_resources — Returns active resources
설명
array get_resources
([ string
$type
] )Returns an array of all currently active resources, optionally filtered by resource type.
인수
-
type -
If defined, this will cause get_resources() to only return resources of the given type. A list of resource types is available.
If the string Unknown is provided as the type, then only resources that are of an unknown type will be returned.
If omitted, all resources will be returned.
반환값
Returns an array of currently active resources, indexed by resource number.
예제
Example #1 Unfiltered get_resources()
<?php
$fp = tmpfile();
var_dump(get_resources());
?>
위 예제의 출력 예시:
array(1) {
[1]=>
resource(1) of type (stream)
}
Example #2 Filtered get_resources()
<?php
$fp = tmpfile();
var_dump(get_resources('stream'));
var_dump(get_resources('curl'));
?>
위 예제의 출력 예시:
array(1) {
[1]=>
resource(1) of type (stream)
}
array(0) {
}
참고
- get_loaded_extensions() - 적재된 모든 모듈명을 배열로 반환합니다
- get_defined_constants() - 모든 상수와 그 값의 연관 배열을 반환합니다
- get_defined_functions() - Returns an array of all defined functions
- get_defined_vars() - 모든 정의된 변수의 배열을 반환
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