note 130566 added to language.attributes.syntax
| From: | yarns_purport0n@icloud.com | Date: | Sat, 06 Dec 2025 06:34:58 +0000 |
| Subject: | note 130566 added to language.attributes.syntax | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-222446@lists.php.net to get a copy of this message | ||
Attribute Subclassing https://3v4l.org/8jqK3#vnull
<?php /** @author ciid */
#[Attribute(Attribute::TARGET_PROPERTY)]
class PropertyAttributes {
public function __construct(
public readonly ?string $name = null,
public readonly ?string $label = null,
) {}
}
#[Attribute(Attribute::TARGET_PROPERTY)]
class IntegerPropertyAttributes extends PropertyAttributes {
public function __construct(
?string $name = null,
?string $label = null,
public readonly ?int $default = null,
public readonly ?int $min = null,
public readonly ?int $max = null,
public readonly ?int $step = null,
) { parent::__construct($name, $label); }
}
#[Attribute(Attribute::TARGET_PROPERTY)]
class FloatPropertyAttributes extends PropertyAttributes {
public function __construct(
?string $name = null,
?string $label = null,
public readonly ?float $default = null,
public readonly ?float $min = null,
public readonly ?float $max = null,
) { parent::__construct($name, $label); }
}
// model class with properties to edit in UI
class MyClass {
#[IntegerPropertyAttributes('prop','property: ',5,0,10,1)]
public int $prop;
#[FloatPropertyAttributes('float','double: ',5.5,0.0,9.9)]
public float $double;
}
// index.php implementation
$props = [['MyClass', 'prop'], ['MyClass', 'double']];
foreach ($props as $prop) { // class, property
$refl = new ReflectionProperty($prop[0], $prop[1]);
$reflAttrs = $refl->getAttributes();
foreach ($reflAttrs as $attr)
echo buildHtmlFormControl($attr->newInstance());
}
/** TL:DR: */
function buildHtmlFormControl(PropertyAttributes $args): string {
$html = [];
$html[] = "<label>{$args->label} <input name=\"{$args->name}\"
value=\"{$args->default}\"";
switch ($args::class) {
case 'IntegerPropertyAttributes':
$html[] = " type=\"number\" min=\"{$args->min}\"
max=\"{$args->max}\" step=\"{$args->step}\""; break;
case 'FloatPropertyAttributes':
$html[] = " type=\"number\" min=\"{$args->min}\"
max=\"{$args->max}\""; break;
}
$html[] = "></label>\n";
return implode('', $html);
}
?>
----
Server IP: 206.189.2.9
Probable Submitter: 1.123.64.57
----
Manual Page -- https://php.net/manual/en/language.attributes.syntax.php
Edit -- https://main.php.net/note/edit/130566
Del: integrated -- https://main.php.net/note/delete/130566/integrated
Del: useless -- https://main.php.net/note/delete/130566/useless
Del: bad code -- https://main.php.net/note/delete/130566/bad+code
Del: spam -- https://main.php.net/note/delete/130566/spam
Del: non-english -- https://main.php.net/note/delete/130566/non-english
Del: in docs -- https://main.php.net/note/delete/130566/in+docs
Del: other reasons-- https://main.php.net/note/delete/130566
Reject -- https://main.php.net/note/reject/130566
Search -- https://main.php.net/manage/user-notes.php