PHP/trait/use - Revision history

Woozle at 17:57, 5 February 2026

2026-02-05T17:57:51Z

← Older revision		Revision as of 17:57, 5 February 2026
Line 91:		Line 91:
	This may result from aliasing methods from multiple traits but not including all of them in the "use" statement.		This may result from aliasing methods from multiple traits but not including all of them in the "use" statement.
	* '''Example''': <syntaxhighlight lang=php inline>use A { A::F1 as parent_F1; B::F2 as parent_F2; }</syntaxhighlight> should be <syntaxhighlight lang=php inline>use A,B {...</syntaxhighlight>		* '''Example''': <syntaxhighlight lang=php inline>use A { A::F1 as parent_F1; B::F2 as parent_F2; }</syntaxhighlight> should be <syntaxhighlight lang=php inline>use A,B {...</syntaxhighlight>
			==Links==
			* PHP Manual: see "Conflict Resolution" on the [https://www.php.net/manual/en/language.oop5.traits.php traits] page.

Woozle at 14:43, 27 May 2024

2024-05-27T14:43:33Z

← Older revision		Revision as of 14:43, 27 May 2024
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	==About==		==About==
	''This sense of the '''use''' keyword is for including traits; ~~there's another sense that only relates to namespaces~~.''		''This sense of the '''use''' keyword is for including traits; for other senses, see [[PHP/use]].''

	The '''use''' keyword allows a [[../\|trait]] to be used within a class or another trait. There unfortunately does not seem to be a page specifically documenting its syntax; most (but not all) of the applicable syntax can be found on the [https://www.php.net/manual/en/language.oop5.traits.php traits] documentation page.		The '''use''' keyword allows a [[../\|trait]] to be used within a class or another trait. There unfortunately does not seem to be a page specifically documenting its syntax; most (but not all) of the applicable syntax can be found on the [https://www.php.net/manual/en/language.oop5.traits.php traits] documentation page.

Woozle: /* Errors */

2022-07-22T14:09:42Z

Errors

← Older revision		Revision as of 14:09, 22 July 2022
Line 85:		Line 85:
	You can also change the visibility (public/protected/private) of a function with "use", but I've never had occasion to... use... this feature.		You can also change the visibility (public/protected/private) of a function with "use", but I've never had occasion to... use... this feature.
	==Errors==		==Errors==
	* "'''Fatal error''': Required Trait {{arg\|trait name}} wasn't added to {{arg\|class or trait name}} in {{arg\|filename}} on line {{arg\|line #}}"		===Required Trait wasn't added===
	** This may result from aliasing methods from multiple traits but not including all of them in the "use" statement.		<blockquote>
	*** Example: <syntaxhighlight lang=php inline>use A { A::F1 as parent_F1; B::F2 as parent_F2; }</syntaxhighlight> should be <~~code~~>use A,B {...</~~code~~>		'''Fatal error''': Required Trait {{arg\|trait name}} wasn't added to {{arg\|class or trait name}} in '''{{arg\|filename}}''' on line '''{{arg\|line #}}'''
			</blockquote>
			This may result from aliasing methods from multiple traits but not including all of them in the "use" statement.
			* '''Example''': <syntaxhighlight lang=php inline>use A { A::F1 as parent_F1; B::F2 as parent_F2; }</syntaxhighlight> should be <syntaxhighlight lang=php inline>use A,B {...</syntaxhighlight>

Woozle at 14:07, 22 July 2022

2022-07-22T14:07:25Z

← Older revision		Revision as of 14:07, 22 July 2022
Line 84:		Line 84:
	===Other===		===Other===
	You can also change the visibility (public/protected/private) of a function with "use", but I've never had occasion to... use... this feature.		You can also change the visibility (public/protected/private) of a function with "use", but I've never had occasion to... use... this feature.
			==Errors==
			* "'''Fatal error''': Required Trait {{arg\|trait name}} wasn't added to {{arg\|class or trait name}} in {{arg\|filename}} on line {{arg\|line #}}"
			** This may result from aliasing methods from multiple traits but not including all of them in the "use" statement.
			*** Example: <syntaxhighlight lang=php inline>use A { A::F1 as parent_F1; B::F2 as parent_F2; }</syntaxhighlight> should be <code>use A,B {...</code>

Woozle at 23:12, 13 April 2022

2022-04-13T23:12:40Z

← Older revision		Revision as of 23:12, 13 April 2022
Line 2:		Line 2:
	''This sense of the '''use''' keyword is for including traits; there's another sense that only relates to namespaces.''		''This sense of the '''use''' keyword is for including traits; there's another sense that only relates to namespaces.''

	The '''use''' keyword allows a [[../\|trait]] to be used within a class or another trait.		The '''use''' keyword allows a [[../\|trait]] to be used within a class or another trait. There unfortunately does not seem to be a page specifically documenting its syntax; most (but not all) of the applicable syntax can be found on the [https://www.php.net/manual/en/language.oop5.traits.php traits] documentation page.
	===Basic Form===		===Basic Form===
	<syntaxhighlight lang=php>		<syntaxhighlight lang=php>

Woozle at 23:10, 13 April 2022

2022-04-13T23:10:17Z

← Older revision		Revision as of 23:10, 13 April 2022
Line 77:		Line 77:
	tSample1::Func3 as parent_Func3;		tSample1::Func3 as parent_Func3;
	}		}
	function Func1() {		function Func1() { $this->parent_Func1(); }
	parent_Func1();		function Func2() { $this->parent_Func2(); }
	}		function Func3() { $this->parent_Func3(); }
	function Func2() {
	parent_Func2();
	}
	function Func3() {
	parent_Func3();
	}
	}		}
	</syntaxhighlight>		</syntaxhighlight>
	===Other===		===Other===
	You can also change the visibility (public/protected/private) of a function with "use", but I've never had occasion to... use... this feature.		You can also change the visibility (public/protected/private) of a function with "use", but I've never had occasion to... use... this feature.

Woozle at 23:08, 13 April 2022

2022-04-13T23:08:24Z

@@ Line 40: / Line 40: @@
 </syntaxhighlight>
 ===Form for Pseudoparent Calls===
-I know this exists, but I'm still looking for the docs.
+This is currently not documented on the traits page; I'm not sure where I found it.
 ===Other===
 You can also change the visibility (public/protected/private) of a function with "use", but I've never had occasion to... use... this feature.

Woozle: Created page with "==About== ''This sense of the '''use''' keyword is for including traits; there's another sense that only relates to namespaces.'' The '''use''' keyword allows a trait..."

2022-04-13T22:45:47Z

Created page with "==About== ''This sense of the '''use''' keyword is for including traits; there's another sense that only relates to namespaces.'' The '''use''' keyword allows a [[../|trait]]..."

New page

==About==
''This sense of the '''use''' keyword is for including traits; there's another sense that only relates to namespaces.''

The '''use''' keyword allows a [[../|trait]] to be used within a class or another trait.
===Basic Form===
<syntaxhighlight lang=php>
trait tSample1 {}
class cSample1 { use tSample1; }
trait tSample2 { use tSample1; }
</syntaxhighlight>
===Form for Multiple Traits===
Building on the above example:
<syntaxhighlight lang=php>
class cSample2 { use tSample1, tSample2; }
// This ^ is equivalent to:
class cSample2 {
use tSample1;
use tSample2;
}
</syntaxhighlight>
===Form for Conflict Resolution===
Starting afresh...
<syntaxhighlight lang=php>
trait tSample1 {
function Func1() {}
function Func2() {}
}
trait tSample2 {
function Func1() {}
function Func2() {}
}
// If we want to use both tSample3 and tSample4, how do we indicate which version of Func1() to use?
// Here's the syntax for that:
class cSample1 {
use tSample1, tSample2 {
tSample2::Func1 insteadof tSample1;
tSample1::Func2 insteadof tSample2;
}
}
</syntaxhighlight>
===Form for Pseudoparent Calls===
I know this exists, but I'm still looking for the docs.
===Other===
You can also change the visibility (public/protected/private) of a function with "use", but I've never had occasion to... use... this feature.