Online PHP editor | rfc for eQN3R

@ 2012-11-25T05:41:46Z

<?php

// modified from: http://us1.php.net/manual/en/class.arrayaccess.php#99236
// sanity and error checking omitted for brevity
// note: it's a good idea to implement arrayaccess + countable +
// an iterator interface (like iteratoraggregate) as a triplet


/*
// WORKS.
class Template implements ArrayAccess {
	// makes it so we can do $template_inst['foo'];

    public $config = array();

    // necessary for deep copies
    public function __clone() {
        foreach ($this->config as $key => $value) if ($value instanceof self) $this[$key] = clone $value;
    }

    public function __construct(array $config = array()) {
        foreach ($config as $key => $value) $this[$key] = $value;
    }

    public function offsetSet($offset, $config) {
        if (is_array($config)) { $config = new self($config); }
        if ($offset === null) { // don't forget this!
            $this->config[] = $config;
        } else {
            $this->config[$offset] = $config;
        }
    }

    public function toArray() {
        $config = $this->config;
        foreach ($config as $key => $value) if ($value instanceof self) $config[$key] = $value->toArray();
        return $config;
    }

    // as normal
    public function offsetGet($offset) { return $this->config[$offset]; }
    public function offsetExists($offset) { return isset($this->config[$offset]); }
    public function offsetUnset($offset) { unset($this->config); }
}
*/



// DOESN'T WORK
class Template implements ArrayAccess {
	// makes it so we can do $template_inst['foo'];

	// container for items passed with null $offset: $this[] = $value;
    public $implied_key_list = array();


    // necessary for deep copies
    public function __clone() {
        foreach ($this as $key => $value) if ($value instanceof self) $this[$key] = clone $value;
    }

    public function __construct(array $items = array()) {
        foreach ($items as $key => $value) { $this[$key] = $value; }
    }

    public function offsetSet($offset, $value) {
        // if (is_array($value)) { $value = new self(array($offset => $value)); } # segfault from this line
        if ($offset === null) { // don't forget this! allows `$this[] = $value;`
            $this->implied_key_list[] = $value;
        } else {
            $this->$offset = $value;
        }
    }

    // as normal
    public function offsetGet($offset) { return $this->$offset; }
    public function offsetExists($offset) { return isset($this->$offset); }
    public function offsetUnset($offset) { unset($this->$offset); }
}


$test = new Template(array('noises' => array('dog' => 'woof')));

echo "<pre><code>";
print_r($test);
echo "</code></pre>";

Output for git.master, git.master_jit, rfc.property-hooks: Deprecated: Return type of Template::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/eQN3R on line 77 Deprecated: Return type of Template::offsetGet($offset) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/eQN3R on line 76 Deprecated: Return type of Template::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/eQN3R on line 66 Deprecated: Return type of Template::offsetUnset($offset) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/eQN3R on line 78 Deprecated: Creation of dynamic property Template::$noises is deprecated in /in/eQN3R on line 71 <pre><code>Template Object ( [implied_key_list] => Array ( ) [noises] => Array ( [dog] => woof ) ) </code></pre>

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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