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[Sync-En] property_exists: show visibility, dynamic properties and magic methods #1247

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julionc merged 1 commit into from
Sep 3, 2026
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[Sync-En] property_exists: show visibility, dynamic properties and magic methods #1247

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65 changes: 64 additions & 1 deletion reference/classobj/functions/property-exists.xml
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<!-- EN-Revision: a4fb7f59310a598b8cb8ca1daa47e557f32ae66e Maintainer: PhilDaiguille Status: ready -->
<!-- EN-Revision: 623a2701987917d7c6b78511cbda442fc17ce500 Maintainer: PhilDaiguille Status: ready -->
<!-- Reviewed: yes Maintainer: pmartin -->
<refentry xml:id="function.property-exists" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
Expand Down Expand Up @@ -89,6 +89,69 @@ myClass::test();
</programlisting>
</example>
</para>
<simpara>
<function>property_exists</function> devuelve &true; independientemente de la
visibilidad de la propiedad, detecta las propiedades dinámicas añadidas a las
instancias (cuando la clase utiliza <literal>#[AllowDynamicProperties]</literal>)
e ignora los métodos mágicos
<link linkend="language.oop5.overloading.members"><literal>__isset</literal></link>
y <literal>__get</literal>.
</simpara>
<para>
<example>
<title>Visibilidad, propiedades dinámicas y métodos mágicos</title>
<programlisting role="php">
<![CDATA[
<?php

#[AllowDynamicProperties]
class MyClass {
public $public;
private $private;
static protected $protectedStatic;

// ignorado por property_exists
public function __isset(string $name): bool {
return true;
}

// ignorado por property_exists
public function __get(string $name): string {
return '';
}
}

$instance = new MyClass();
$instance->instanced = 'abc';

var_dump(property_exists($instance, 'public')); // true (pública)
var_dump(property_exists($instance, 'private')); // true (visibilidad ignorada)
var_dump(property_exists($instance, 'protectedStatic')); // true (visibilidad ignorada)
var_dump(property_exists($instance, 'instanced')); // true (propiedad dinámica en la instancia)
var_dump(property_exists($instance, 'undefined')); // false (no declarada, __isset ignorado)

var_dump(property_exists(MyClass::class, 'public')); // true
var_dump(property_exists(MyClass::class, 'instanced')); // false (las propiedades dinámicas no están en la clase)
var_dump(property_exists(MyClass::class, 'undefined')); // false

?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
bool(true)
bool(true)
bool(true)
bool(true)
bool(false)
bool(true)
bool(false)
bool(false)
]]>
</screen>
</example>
</para>
</refsect1>

<refsect1 role="notes">
Expand Down