PHP/resource - Revision history

Woozle at 17:31, 10 February 2026

2026-02-10T17:31:43Z

← Older revision		Revision as of 17:31, 10 February 2026
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			{{fmt/title\|the "resource" data-type in PHP}}
	==About==		==About==
	In [[PHP]], a "resource" value is an opaque internal pointer for handling certain types of I/O-ish operations.		In [[PHP]], a "resource" value is an opaque internal pointer for handling certain types of I/O-ish operations.

Woozle at 19:46, 18 January 2026

2026-01-18T19:46:56Z

← Older revision		Revision as of 19:46, 18 January 2026
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	{\| class=wikitable		{\| class=wikitable
	! type \|\| subtype \|\| functions		! type \|\| subtype \|\| functions
	{{!-!}} curl \|\| cURL handle		{{!-!}} [[/curl/]] \|\| cURL handle
	{{!-!}} process \|\| \|\| <code>[https://www.php.net/manual/en/function.proc-open.php proc_open()], [https://www.php.net/manual/en/function.proc-get-status.php proc_get_status()], [https://www.php.net/manual/en/function.proc-terminate.php proc_terminate()], [https://www.php.net/manual/en/function.proc-close.php proc_close()]</code>		{{!-!}} [[/process/]] \|\| \|\| <code>[https://www.php.net/manual/en/function.proc-open.php proc_open()], [https://www.php.net/manual/en/function.proc-get-status.php proc_get_status()], [https://www.php.net/manual/en/function.proc-terminate.php proc_terminate()], [https://www.php.net/manual/en/function.proc-close.php proc_close()]</code>
	{{!-!}} stream \|\| dir handle		{{!-!}} [[/stream/]] \|\| dir handle
	{{!-!}} stream \|\| file handle		{{!-!}} [[/stream/]] \|\| file handle
	{{!-!}} stream \|\| process handle		{{!-!}} [[/stream/]] \|\| process handle
	{{!-!}} socket \|\| file handle		{{!-!}} [[/socket/]] \|\| file handle
	{{!-!}} ssh2 session		{{!-!}} [[/ssh2/]] session
	{{!-!}} ssh2 listener		{{!-!}} [[/ssh2/]] listener
	{{!-!}} ssh2 SFTP		{{!-!}} [[/ssh2/]] SFTP
	{{!-!}} ssh2 publickey system		{{!-!}} [[/ssh2/]] publickey system
	\|}		\|}
	Source: [https://www.php.net/manual/en/resource.php List of Resource Types]		Source: [https://www.php.net/manual/en/resource.php List of Resource Types]

Woozle at 15:17, 16 January 2026

2026-01-16T15:17:36Z

← Older revision		Revision as of 15:17, 16 January 2026
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	==About==		==About==
	In [[PHP]], a "resource" value is an opaque internal pointer for handling certain types of I/O-ish operations. As of PHP 8.5, although "resource" is "[https://www.php.net/manual/en/reserved.other-reserved-words.php soft-reserved] and is used as a documentation pseudotype, there is no actual "resource" type; the only type which is currently known to be compatible with resource variables is "[https://www.php.net/manual/en/language.types.mixed.php <code>mixed</code>]". PHP currently interprets invocation of "<code>resource</code>" as a type as a reference to an unknown class named "{{fmt/arg\|current namespace}}<code>\resource</code>".		In [[PHP]], a "resource" value is an opaque internal pointer for handling certain types of I/O-ish operations.
			===Syntax===
	~~Note that additional~~ [https://www.php.net/manual/en/book.stream.php stream] resource types can be defined in code with [https://www.php.net/manual/en/function.stream-wrapper-register.php <code>stream_wrapper_register()</code>].		As of PHP 8.5, although "resource" is "[https://www.php.net/manual/en/reserved.other-reserved-words.php soft-reserved] and is used as a documentation pseudotype, there is no actual "resource" type; the only type which is currently known to be compatible with resource variables is "[https://www.php.net/manual/en/language.types.mixed.php <code>mixed</code>]". PHP currently interprets invocation of "<code>resource</code>" as a type as a reference to an unknown class named "{{fmt/arg\|current namespace}}<code>\resource</code>".
			===Types===
			There are many specialty resource-types defined by extensions, and a handful of more general types:
			{\| class=wikitable
			! type \|\| subtype \|\| functions
			{{!-!}} curl \|\| cURL handle
			{{!-!}} process \|\| \|\| <code>[https://www.php.net/manual/en/function.proc-open.php proc_open()], [https://www.php.net/manual/en/function.proc-get-status.php proc_get_status()], [https://www.php.net/manual/en/function.proc-terminate.php proc_terminate()], [https://www.php.net/manual/en/function.proc-close.php proc_close()]</code>
			{{!-!}} stream \|\| dir handle
			{{!-!}} stream \|\| file handle
			{{!-!}} stream \|\| process handle
			{{!-!}} socket \|\| file handle
			{{!-!}} ssh2 session
			{{!-!}} ssh2 listener
			{{!-!}} ssh2 SFTP
			{{!-!}} ssh2 publickey system
			\|}
			Source: [https://www.php.net/manual/en/resource.php List of Resource Types]
			===Advanced===
			New [https://www.php.net/manual/en/book.stream.php stream] resource types can be defined in code with [https://www.php.net/manual/en/function.stream-wrapper-register.php <code>stream_wrapper_register()</code>].
	==Functions==		==Functions==
			These are just the general functions that apply to all resources; there are many others that do things with specific types of resources. In general, this is all not very well documented (there is plenty of documentation, but very little of it explains how things work).
	* [https://www.php.net/manual/en/function.get-resource-id.php <code>get_resource_id()</code>]		* [https://www.php.net/manual/en/function.get-resource-id.php <code>get_resource_id()</code>]
	* [https://www.php.net/manual/en/function.get-resource-type.php <code>get_resource_type()</code>]		* [https://www.php.net/manual/en/function.get-resource-type.php <code>get_resource_type()</code>]
	* [https://www.php.net/manual/en/function.is-resource.php <code>is_resource()</code>]		* [https://www.php.net/manual/en/function.is-resource.php <code>is_resource()</code>]
			* If passed a resource variable, [https://www.php.net/manual/en/function.get-debug-type.php <code>get_debug_type()</code>] will indicate whether it is open or closed. (Surely there is some more rigorous way to get this information, however.)
	==Links==		==Links==
	===Reference===		===Reference===
	* [https://www.php.net/manual/en/language.types.resource.php Resources]		* [https://www.php.net/manual/en/language.types.resource.php Resources]
	** [https://www.php.net/manual/en/resource.php List of Resource Types]		** [https://www.php.net/manual/en/resource.php List of Resource Types]

Woozle at 23:02, 25 December 2025

2025-12-25T23:02:49Z

← Older revision		Revision as of 23:02, 25 December 2025
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	==About==		==About==
	In [[PHP]], a "resource" ~~represents~~ an opaque internal ~~class~~ for handling certain types of I/O-ish operations.		In [[PHP]], a "resource" value is an opaque internal pointer for handling certain types of I/O-ish operations. As of PHP 8.5, although "resource" is "[https://www.php.net/manual/en/reserved.other-reserved-words.php soft-reserved] and is used as a documentation pseudotype, there is no actual "resource" type; the only type which is currently known to be compatible with resource variables is "[https://www.php.net/manual/en/language.types.mixed.php <code>mixed</code>]". PHP currently interprets invocation of "<code>resource</code>" as a type as a reference to an unknown class named "{{fmt/arg\|current namespace}}<code>\resource</code>".

	~~Tentatively, variables may~~ be ~~declared to be of type "~~<code>\resource</code>" (~~as of PHP 8 or so~~).		Note that additional [https://www.php.net/manual/en/book.stream.php stream] resource types can be defined in code with [https://www.php.net/manual/en/function.stream-wrapper-register.php <code>stream_wrapper_register()</code>].
			==Functions==
			* [https://www.php.net/manual/en/function.get-resource-id.php <code>get_resource_id()</code>]
			* [https://www.php.net/manual/en/function.get-resource-type.php <code>get_resource_type()</code>]
			* [https://www.php.net/manual/en/function.is-resource.php <code>is_resource()</code>]
	==Links==		==Links==
	===Reference===		===Reference===
	* [https://www.php.net/manual/en/language.types.resource.php Resources]		* [https://www.php.net/manual/en/language.types.resource.php Resources]
	** [https://www.php.net/manual/en/resource.php List of Resource Types]		** [https://www.php.net/manual/en/resource.php List of Resource Types]

Woozle: Created page with "==About== In PHP, a "resource" represents an opaque internal class for handling certain types of I/O-ish operations. Tentatively, variables may be declared to be of type..."

2025-12-25T15:16:33Z

Created page with "==About== In PHP, a "resource" represents an opaque internal class for handling certain types of I/O-ish operations. Tentatively, variables may be declared to be of type..."

New page

==About==
In [[PHP]], a "resource" represents an opaque internal class for handling certain types of I/O-ish operations.

Tentatively, variables may be declared to be of type "<code>\resource</code>" (as of PHP 8 or so).
==Links==
===Reference===
* [https://www.php.net/manual/en/language.types.resource.php Resources]
** [https://www.php.net/manual/en/resource.php List of Resource Types]